What we need is a glossary

[squatlo]

This is a collection of terms and definitions that you see popping up on this board, and others, from time to time. Some defintions are mine, some are found on the internet in various places, some were given by other members of the Files. Feel free to copy, distribute, re-post, or whatever. None of these terms belong to anybody.


Action: The mechanism of a firearm directly behind the barrel, by which a gun is loaded, locked, fired, unlocked, extracted and ejected.

AD: Accidental discharge, or having a weapon fire a cartridge when not intended.

AK :Automat Kalashnikova (see AK-47, AKM, AK-74)

AKM: the actual designation for what is traditionally known as the modern AK-47.

AK-47: the traditional AKM style assault rifle, typically in 7.62 x 39 caliber.

AK-74: the more recent AKM (or AKS) style assault rifle in a high velocity 5.45x39mm

Angry Beavers: The gunsmiths at CAI.

Anvil: That part of the cartridge primer which is a solid surface, against which the firing pin strikes to set off the priming powder.

Assault Rifle: typically a rifle firing a moderate power cartridge, such as the 7.62 x 39 or 5.56 x 45, and capable of fully automatic fire and having high capacity magazines.

AUG (Steyr): Armee Universal Gewehr, and the rifle that bears that name

Automatic firearm: any firearm designed or specially adapted to fire a succession of cartridges with a single function of the trigger. According to SOME legislation, it can also mean: any semi-automatic firearm designed or specially adapted to fire more than thirty-one cartridges without reloading, other than a firearm chambering only .22 caliber short, long, or long-rifle cartridges.


AW: Assault weapon

AWB: Assault Weapons Ban (of 1994)

Ballistic Coefficient: A number which indicates how a bullet's shape, length, weight, diameter and nose design affect its stability, velocity and range against air resistance.

Barrel timing: the rotation of the barrel as it is threaded up into the receiver facing. A perfectly timed barrel will line up at "top dead center" at the correct torquing upon assembly. Otherwise it will need to be adjusted using various methods, including shimming.

Bedding: the method or manner in which a rifle receiver and / or barrel is fitted to the stock.

Berdan: a style of cartridge primer typically found in non-US cartridges. In a Berdan primed cartridge, the anvil is an intergral part of the primer pocket. Berdan primed cartridges are un-reloadable.

Black Rifle: various definitions, but essentially a military styled rifle.

Boattail: The tapered rear end of a bullet. (Also called Òtaper heel", this design is used to increase ballistic efficiency at long range.)

B.O.B.: Bug-out-bag. Bag or pack containing elements and supplies the carrier feels necessary to have should he or she encounters a “WTSHTF” scenario.

Bore: The inside of the barrel of a firearm.

Boxer: a style of cartridge primer typically found in US cartridges. In a Boxer primer, the anvil is intergral with the primer. Boxer primed cartridges are reloadable.

BHO: Bolt hold open device

Bull barrel: target barrel (slang)

Bump fire (firing): a way to mimic full automatic fire by manipulating the trigger via body motion.

C1 and C2: Canadian built versions of the FN rifle (light and heavy barrel, respectively)

CAI: Century Arms International, a firearms importer and distributor

Caliber: refers to either the diameter of a bullet or the bore of a gun. It is the approximate bore or groove diameter expressed in hundredths of an inch.

Cannelure: A groove around the circumference of a bullet or case.

Carbine: typically used to describe a version of a rifle that is shorter, smaller, or lighter than the standard model. Also describes a rifle-style firearm that uses a handgun cartridge (via Blag). Per Winchester lever-action terminology, a carbine has a single barrel-band.

Cartridge: A case, usually made of brass or copper, containing the powder charge, the primer and the bullet.

C&R: Curio and Relic, or a type of FFL that allows you to buy C&R firearms

CETME: Centro de Estudios Tecnicos de Materiales Especiales, and the rifle that bears the name.

Chamber: An area at the breech end of a barrel, of about the diameter of the cartridge for which the gun was intended, and into which the cartridge is inserted

Cheek Weld: the resting position of the cheek on the butt stock of a rifle.

CMP: Civilian Marksmanship Program

Class III firearm: in most cases a firearms capable of fully automatic fire

Clip: A clip is a metal device designed to hold or store ammunition in an easily portable package. This saves having pockets full of loose cartridges. With few exceptions (M1 Garand), clips are not designed to be inserted into a firearm to feed ammunition while the firearm is being shot.(see magazine)

Closed Bolt: A firing system for full automatic and/or semi-automatic firearms where the bolt remains in the forward position after each cartridge is fired or when firing is stopped

Compensator: A device fitted to the muzzle of a firearm to reduce recoil or muzzle rotation.

Corrosive Primer: A primer that's burnt residue is hygroscopic (attracts moisture). This is via the salts produced at ignition.

Creep: The movement of the trigger before it releases

Crown: the opening at the muzzle end of the barrel where the rifling ends.

Daewoo K1 or K2: South Korean made infantry / assault rifles in 5.56x45mm

DSA: A U.S. based company who manufactures and distributes FN rifles under license from FN.

Double action: A handgun mechanism where pulling the trigger retracts and releases the hammer or firing pin to initiate discharge. The trigger performs two functions, namely cocking the hammer and releasing the hammer.

EBR: Evil Black Rifle

Effective Range: The range in which a competent and trained individual using the firearm has the ability to hit a target sixty to eighty percent of the time. This ability to hit the target is effected by the length of the barrel of the firearm, the actual cartridge fired, and quality of construction.

Elevation: the adjustment on a firearm sight or scope that allows for vertical movement of the Point-of Aim.

Ejector: The mechanism which throws the cartridge case free from the gun.

Extractor: A hook device which pulls the case out of a chamber as the breech mechanism is opened.

Eye Relief: typically, the distance between the eye and the scope, when using the scope on a rifle or handgun.

FAL 50.00: fixed buttstock and standard barrel

FAL 50.63: FAL "Para", with folding skeleton butt and short barrel

FAL 50.64: folding skeleton butt of "Para" model and standard length barrel

FAL 50.41: FAL Hbar or FALO - a heavy barreled model that was intended primary as a light support weapon

FAMAS: Fusil d'Assaut de la Manufacture d'Armes de St-Etienne

FFL: Federal Firearms License

Firing Pin: The part of the breech mechanism which strikes the primer of the cartridge

Flash Hider / Suppressor: a device fitted to the muzzle of a rifle to minimize the visual effects of the “fireball” at barrel end while firing at night. It does nothing to “hide” the muzzle flash to anyone but the actual shooter.

Floor Plate: The detachable metal plate at the bottom of the cartridge magazine of a firearm.

FN-FAL: Fabrique Nationale Fusil Automatique Leger, and the MBR that bears the name.

FTE: Fail to Eject, or having a spent cartridge fail to eject from the firearm

FTF: Fail to Fire, or having a cartridge not fire in a firearm

Frankenfal: an FN-FAL assembled utilizing various and sundry parts.

Freebore: The distance a bullet travels before it makes contact with the rear portion or origin of the rifling.

Furniture: typically the "non metallic" exterior parts of a rifle, ie. stock, hand guards, pistol grip, etc.

G1: the German designation for the FN-FAL rifle

G3: a common H&K rifle in 7.62x51 caliber. Used by various military and police agencies worldwide.

Gas operated: A full automatic and/or semi-automatic firearm where the propellant gases are used to unlock the breech bolt and then to complete the cycle of extracting and ejecting

Gas Port: A small hole in the barrel of a gas-operated firearm through which expanding gases escape to power the autoloading system

Gas Exapnsion System: The gas expansion system, in contrast to the impingement system, has an appreciable initial volume of gas in its expansion chamber. This requires more time to pressurize the chamber and also more time to exhaust the gas by selection of port size and location as the required pressurized gas can be drained from the bore. The 7.62-mm M14 rifle uses this type of operation.

Gas Tappet System: The gas tappet system is an impingement system with a short piston travel. It is often referred to as a gas short stroke system. An example of such a mechanism is found in the Ml and M1A1 .30-cal. carbine

Gauge: The bore size of a shotgun determined by the number of round lead balls of bore diameter that equals a pound.

GI: Government Issue

Grain: used to measure bullets and powder. Equals 1/7000 of a pound

Grooves: the spiral part of the bore that is removed from in-between the lands

Group: A series of shots fired with the same sight setting and the same aim

H&K: Heckler and Koch (pronounced “Coke”, not “Kotch”)

HBAR: Heavy Barrel

Hammer: The part of the action that drives the firing pin forward.

Hangfire: Delay in firing a cartridge after the firing pin has struck the primer

Headspace: the gap between the face of the bolt and the stopping surface for the cartridge

Headstamp: imprinting at the base or primer end of a cartridge that gives information as to it origin, date of manufature, or other characteristics.

Heavy Machine Guns: solidly-mounted, full-auto only, belt-fed, crew served military weapons using cartridges larger than the using military's main battle rifle. They are used for long-range support.

Hold over: Changing the point of aim either above or below of the target (without adjusting the sights) to adjust for the trajectory of the bullet when fired at a target distance the firearms is not zeroed at.

Hollow Point: A bullet with a nose cavity designed to increase its expansion on impact

HTS: Hammer, trigger, sear

IMBEL: Industria de Materiel Belico do Brasil

Inch (FN-FAL): built in countries with imperial measure systems (Australia, Britain and Canada)

IPSC: International Practical Shooting Confederation

Izzy: Israeli

Jacket: The outer covering over the inner metal core of a bullet.

“Kaboom”: usually indicates an abnormal explosion or discharge situation, via firing a cartridge in a firearm, that is either destructive or injurious or both.

Kentucky windage: aiming the rifle at a POA other than the actual target, to compensate for it not being zeroed, or it being unable to be zeroed.

Keyholing: The failure of a bullet to remain balanced in flight so that it enters the target sideways, leaving an elongated opening

L1A1: license built "inch pattern" FN FAL from Australia / New Zealand. The L2A1 was an SAW version. L1A1 (SLR) was the British version. India called it the 1ASL.

Lands: The spiraling raised portion of a bore remaining after the grooves have been cut or formed.

LEO: Law Enforcement Officer / Law Enforcement Only

Light machine gun: easily portable, usually fire from a bipod and may use either magazines or a belt or both. They are used for close-range support Some are capable of semi-automatic operation

Locking Lugs: A series of projections on the bolt of a firearm designed to fit into corresponding slots in the receiver to lock the action in closed position for firing

MAADI: An Egyptian AKM

Magazine: A magazine is an all encompassing metal or plastic ammunition feeding device incorporated in or designed to be attached to a repeating or autoloading firearm. (see clip)

Mall Ninja: various definitions, essentially an individual who is "all dressed up with nowhere to go" in the world of combat readiness, tactical gear, bar-room stories and "I shit you nots". Traditionally wears urban camo or black BDU's and combat boots to bed, and eats MRE's because he really wants to.

MBR: Main Battle Rifle. Typically considered a full sized rifle firing a high power cartridge, such as 30.06, 7.62 x 51, or 7.62x54(-r-)

M-14: the United States MBR that saw service between the M1 Garand Rifle and the advent of the M-16. It is 7.62x 51 caliber select fire rifle. It is essentially a modification of the Garand Rifle.

M-44: a Russian carbine, WW II era, in 7.62 x 54 (-r-) caliber. Not to be confused with M-444.

M-444: a “sporterized” model of the FN-FAL rifle. Not to be confused with the M-44

Machine pistol: a typically European designation for a small sized firearm that uses pistol cartridges and is capable of high volume automatic fire. Also a Submachine gun.

Medium Machine Gun: use rifle-calibre cartridges. Some use magazine or strips instead of a belt. They are usually fired from a tripod or bipod and are used for medium-range support.

Metric (FN-FAL): rifles built in countries with metric measure systems

MilDot: a dot on a reticle that is one mil wide

MOA: Minute of Angle. In practical terms, 1” every 100 meters. A rifle that shoots “MOA” is capable of shooting a 1” group at 100 meters, a 2” group at 200 meters, etc.

Mouse gun: AR-15 / M-16 or other rifle in 5.56x45 caliber

Muzzle: The open end of the barrel from which the projectile exits.

Muzzle Brake: A deflector fitted to a gun muzzle to deflect exiting gases. Usually used to reduce recoil by redirecting the jet effect of the muzzle blast.

Muzzle Velocity: The speed of a projectile at the muzzle of a firearm - usually measured in feet per second. Industry standard is the velocity measured at 15" from muzzle

ND: Negligent discharge. An unintended discharge of a firearm as a result of negligent / unsafe practices or procedures. (per Wadman)

NFA: National Firearms Act (of 1934). Regulates ownership of Class III firearms

NORINCO: China North Industries Group, known for the production of various firearms.

Open Bolt: A firing system for automatic and semi-automatic firearms where the bolt remains in the rearward position after each cartridge is fired or when firing is stopped.

Para: Paratrooper (styled)

Pistol: Any firearm designed to be fired with one hand

POA: Point-of Aim, the intended point of impact of a bullet when fired from a firearm.

PolyTech: Poly Technologies, a Chinese firearms manufacturer.

Port: Portugese, usually referred to as the origin of some surplus ammunition.

Preban: usually refers to any firearm that was built prior to the 1994 Assault Weapons Ban

Primer: The ignition component of a cartridge

R1: South African designation for the FN-FAL

Receiver: The housing for a firearm's breech and firing mechanism.

Recoil operated: the force of the discharging cartridge exerts backwards against the breech mechansims, and this energy is utilized to actuate the mechanical processes of extraction, ejection, reloading, etc.. There are two basic methods of recoil operation for semiautomatic and automatic small arms. They are the long-recoil (Browning) and short-recoil (Maxim) methods.

Reticle: The aiming indicator at the focus of a telescopic sight. May consist of straight or tapered lines, dots, posts, or combination thereof

Rifling: spiral grooves cut into the bore of the firearm to impart a spin on the bullet

RKBA: "right to keep and bear arms". Usually refers to issues regarding the 2nd Amendment of the US Constitution.

SAR 1 (or SAR 2, SAR 3): An AKM (AK-47) styled rifle produced jointly between Romania and Century Arms.

Sabot: A lightweight carrier surrounding a heavier projectile of reduced caliber, allowing a firearm to shoot ammunition for which it is not chambered

SAAMI: Sporting Arms and Ammunition Manufacturers' Institute

SAW: Squad Automatic Weapon

Sear: The part of a firearm which links the trigger and the firing pin and releases it when the trigger is pulled.

Select fire: A firearm's ability to be fired fully automatically, semi-automatically or, in some cases, in burst-fire mode at the option of the shooter

Semi-automatic firearm: any firearm designed or specially adapted to fire a single cartridge and automatically chamber a succeeding cartridge ready to fire, with a single function of the trigger.

Silencer (suppressor): A device that attaches to a firearm, for the purpose of reducing the audible sound of firing.

Single action: The action of the firearm is such that it must be manually cocked prior to each shot before the trigger will actuate the firing mechanism.

SLR: Self-loading rifle

SKS: Samozariadnyia Karabin Simonova, and the semi-automatic rifle that bears the name.

STG-58: Austrian Steyr license built FN FAL

Slam Fire: a situation where a semiautomatic firearm unintentionally fires as if fully automatic as a result of a mechanical defect. This usually results in the firearm emptying the entire magazine at once with the operator being unable to stop the firearm from discharging.

Spray and Pray: a derogatory term used to describe un-aimed and high volume fire, defensive or offensive.

Straight blowback: uses recoil energy from the firing of a round of ammunition to operate the mechanism of the weapon and extract the fired case, eject it against spring tension, and return the mechanism to firing position again.

Squib: a cartridge that is erroneously under loaded with powder. If fired, the bullet may not leave the barrel, causing a barrel obstruction and a possible (and likely) “kaboom”.

SS-109 (62 grain M-855): A type of US military 5.56x45 mm ammunition. Also known as “Green Tip”.

Submachine gun: A small sized firearm that uses a pistol cartridge and is capable of high volume automatic fire.

SUIT: Sight Unit Infantry Trilux, a style of optical sight often used on FN rifles

Swiss Army Rifle: Typically an M4 styled carbine with a plethora of added rails, scopes, lasers, tactical grips, flashlights, and other "tactical" gear with the inherent ability hang up on web gear, door frames, folding chairs, dog collars and lingerie.

T&E Device: Transverse and Elevation Device, essentially a pedestal for a heavy weapon.

T-48: a US built (Harrington and Richardson) FN-FAL, used in the initial Army trials. This is an Inch Variant rifle.

TEOTWAWKI: The End Of The World As We Know It.

Throat: The forward portion of the chamber where it is tapered to meet the bore

Trigger: The part of a firearm mechanism which releases the firing pin

Twist: The rate of spiral of the grooves of a rifle barrel expressed in length of barrel per revolution. The rate of twist can effect various ballistic characteristics upon the fired bullet, usually based upon the weight and construction of the bullet.

VEPR: an AKM styled rifle built by Robinson Armament Company in partnership with the Russian Molot Arms Factory.

Windage: the adjustment on a firearm sight or scope that allows for horizontal movement of the Point-of Aim.

WECSOG: Wile E. Coyote School of Gunsmithin'

WTSHTF: a critical situation, feared by some and fantasized by others, When The Shit Hits The Fan, and an individual is forced to act and react on his or her training, general preparedness, and willingness to survive. In certain individuals minds, this will be initially preceded by TEOTWAWKI


Zero Range: The distance at which the bullet path exactly coincides with the line of sight

Zeroing: process of adjusting a weapon's elevation and windage to an individual user so the weapon, when fired, will hit the object of aim. A weapon is said to be “zeroed” when this is done.

[Wadman]

You've got AD for Accidental Discharge but not ND for Negligent Discharge.

[wyo]

Squatlo:

EXCELLENT !!!

I've been thinking about asking on some of these things but afraid to show the true depth of my ignorance!

But now that it's out, WTH I'll venture a wild guess here... "KB" = "Kaboom"?

Regards: Wyo

P.S. I printed the sheet for future reference, now if I could just find where I put it......

[Gremper]

Superb. But it's "WECSOG: Wile E. Coyote School of Gunsmithin"

[loneeagle308]

Whats BTT mean on the files>???????

[geerhed]

BTT: Bump To Top - to revive a thread to the top of the page by adding a new post.

As opposed to...

BBT: Big Brown Truck, or the UPS guy.

[Blag]

Originally posted by squatlo
Carbine: typically used to describe a version of a rifle that is shorter, smaller, or lighter than the standard model.

Also describes a rifle-style firearm that uses a handgun cartridge.

DSA: A U.S. based company who manufactures and distributes FN rifles under license from FN.

I don't think DSA is licensed by FN. I think they got into the business by purchase of specs and parts from Steyr of Austria.

I suggest --
"DSA: A U.S. company that manufactures FAL-style sporting rifles, and provides parts and services to the shooting sports community. DSA is a sponsor of the finest firearms forum and general discussion site on the web, FAL Files."

Inch (FN-FAL): built in countries with imperial measure systems

Which are Australia, Britain and Canada if you want to be more specific. Since they've now gone metric, you might change it to --

"Inch FAL: a FAL-type rifle built in a country that used the imperial measurement system at that time; Australia, Britain, or Canada."

A glossary is a valuable project, long overdue. Well done, to get it going.

[Oregon-Jet]

squatlo
Well Done indeed, I will be printing it too, thanks .

[squatlo]

I don't think DSA is licensed by FN. I think they got into the business by purchase of specs and parts from Steyr of Austria.

actually, I think you are right. But if someone who knows for damn sure wantts to chime in, I will make the appropriate changes.

Other suggested changes / additions made.

Thanks.

[squatlo]

I added barrel timing, among other things. If a real live gunsmith type wants to give me a btter or more concise defintion of that, please do.

In fact, if a gunsmith type wants to give some defintions of gunsmith oriented terms, I will be pleased to add them.

[Deltaten]

squatlo:

A fine job, indeed!

I'd like to recommend to a moderator that it get moved to the FAQ dept, and made "sticky", or whatever it's called..permanent bold markings at the top of the section

Thanks,
Paul

[Doubleought]

Originally posted by squatlo

In fact, if a gunsmith type wants to give some defintions of gunsmith oriented terms, I will be pleased to add them.

My favorite gunsmith oriented term: WTF?

Nice job, squatlo!

[tk421]

High Capacity ammunition feeding device: An ammunition feeding device (magazine or drum) whose capacity exceeds that of any designed for the firearm in question. For example, a 35 round FAL mag would be 'high capacity'. A 110 round AR drum would be 'high capacity', as would a 40 round Glock magazine, a 110 round AK drum, or a 20 round 1911 magazine.

A 20 round FAL mag, 30 round AR mag, or 75 round AK drum are STANDARD CAPACITY ammunition feeding devices.

10 round magazines and drums are REDUCED CAPACITY ammuntion feeding devices.

These terms not applicable to belt-fed firearms, as a belt can pretty much be made whatever capacity the fire-er wants.
------------------------------------------------------

That work fer ya?

[Blag]

More suggestions.

Leade: another term for freebore.

Follower: the part of a magazine immediately under the cartridges, that pushes the cartridges upward from pressure applied by the spring.

Forcing cone: the area in a revolver barrel just in front of the cylinder, slightly enlarged and angled to guide the bullet as it passes from the cylinder to the barrel.

Safety: a mechanical device that blocks or disconnects the firing mechanism. A safety by itself should never be trusted, and proper rules for handling of firearms should always be observed.

"BHO" is out of alphabetical order.

Keep it going, this glossary project is good.

[CW TUCKER]

You have done wel l(!) I am printing it now and have sent it to several Friends. // Thanks // CW

[Hawkish]

FTF - Failure to Feed - A cartridge coming out of the magazine doesn't get oriented properly to go into the chamber. Can be caused by a dirty feed ramp, a bullet shape that the gun just doesn't feed well, or a faulty or damaged magazine.

Limp-wrist - A type of stoppage that Glocks are famous for. Recoil-operated guns depend on the shooter to stop the backward motion of the frame during recoil, while the slide (or bolt) continues rearward. If the shooter holds the gun too loosely, the slide will not have enough momentum (relative to the frame) to cycle the action. This mostly happens when people shoot Glocks, but is more a fault of the shooter than the gun.

Misfire - A cartridge which fails to fire when it's primer is struck. Can be caused by many things including: the primer not being seated properly in the pocket, priming compound contaminated, gun with weak or damaged mainspring.

Poodle Shooter - AR-15 / M-16 or other rifle in 5.56x45 caliber

Stovepipe - An empty case is extracted, but not completely ejected from the action before the bolt or slide returns forward, trapping the empty case in the ejection port, often with the case mouth sticking out of the port like a stovepipe. Can be caused by an ejector or extractor which is damaged or needs adjustment.

[crcksht]

one more to add to the list

Battle rifle:

"...connotates a full-sized arm, chambered for a full-powered cartridge. This weapon may or not be selective-fire, but, like the assault rifle, fires from a locked breach. Early examples of the breed may not feature a detachable box magazine, but all later versions include this option in deference to modern firepower infantry tactics."

Quoting Chuck Taylor, from his book, The Fighting Rifle. Taylor says the most common modern examples are the FN-FAL, the G-3/HK-91, the AR-10, the M14(M1A), the BM-59, and the M1 Garand.

[Windustsearch]

One more thing, I think pre-ban is more of a reference to GB seniors 1989 import ban.

[Nickle]

Originally posted by squatlo
Angry Beavers: The gunsmiths at CAI.

They're not "Beavers", they're "Woodchucks". It's a Vermont term for a Native Vermonter.

I work 2 towns south of Century. Some of those clowns I wouldn't call "gunsmiths" on a bet. And yes, I personally know those people that I'm talking about.

[Powderfinger]

What does Molon Labe mean?

[bykerhd]

Good start so far.
What about SHTF ? Hard to believe that one got missed.

Also MIA. Useful when someone just disappears from the Files. Sometimes due to natural or unnatural causes, temper tantrums, being a crook and getting caught at it, getting banned, etc.

[Blag]

Originally posted by Powderfinger
What does Molon Labe mean?

It means "come and take them" or "come and get them."

That was the reply of the Spartans at the Battle of Thermopylae when the Persians told them to give up their weapons.

[Windustsearch]

AKM- Avtomat Kalashnikova Modernizerovannyi= modernized model of 1959, has a stamper receiver.

AKS- Avtomat Kalashnikova Skladnoi= folding stock/paratrooper model, S applies to the AK-47, AKM, AK-74.

AK-47 only applies to the model of 1947, has a milled receiver.

[bykerhd]

One of my favorites is MISSING !

BFH - Big F*cking Hammer, essential WECSOG tool !

How about CLP ? Cleaner/Lubricant/Protectant.

Ed's Red ? Formerly home brewed bore cleaner. Available commercially from Brownell's now I guess. I don't remember the recipe.

[granite]

" MilDot: a dot on a reticle that is one mil wide "

I don't think that dots are one mil (miliradian) wide, but that the centers of the dots are spaced one mil apart.

[MrL1A1]

some extras.....

AA avenue of approach
ANCOC advanced noncommissioned officer course
AR Army regulation

BNCOC basic noncomissioned officer course
BT basic training

cm centimeter
CONUS continental United States
CS combat support
CSS combat service support
CUCV commercial utility cargo vehicle

DD Department of Defense
DMA Defense Mapping Agency

E east
EPLRS enhanced position location reporting system

FIST fire support team
FM field manual
FORSCOM United States Army Forces Command

GD ground distance
GEOREF geographic reference system
G-M grid-magnetic
GPS global positioning system
GSR ground surveillance radar
GTA graphic training aid
G/VLLD ground/vehicular laser locator designator

HD horizontal distance
HHC headquarters and headquarters company
HMMWV high-mobility multipurpose wheeled vehicle

JOG joint operations graphics
JTIDS joint tactical information distribution system

km kilometer

LAT latitude

MD map distance
METT-T mission, enemy, terrain, troops and time available
MITAC map interpretation and terrain association course

N north
NCO noncommissioned officer

OAC officer advanced course
OBC officer basic course
OCS officer candidate school
OSUT one station unit training

PADS position and azimuth determining system
PD photo distance
PJH hybrid (PLRS and JTIDS)
PLDC primary leadership development course
PLGR Precision Lightweight Global Positioning System Receiver
POI program of instruction
PRE precommission

QRMP quick response multicolor printer

ROTC Reserve Officers' Training Corps

S
south
SF
standard form
SOSES
shapes, orientations, sizes, elevations, and slopes
SUSV
small-unit support vehicle

tan tangent
TM technical manual
TOW tube-launched, optically tracked, wire-guided missile
TRADOC Training and Doctrine Command
topo topographic

UPS universal polar stereographic
US United States
USGS United States Geological Survey
UTM universal transverse mercator

VD vertical distance
VNAS vehicular navigation aids system

W west

[Tim T]

Great list, but you forgot my favorite, BFG = "Big F*cking Gun"

[Rawles]

I now have several hundred acronyms at:

http://www.survivalblog.com/glossary.html

It includes classics like WTSHTF and TEOTWAWKI, along with lots of military and scientific acronyms.

[Hot Diggity]

Holy cow,

I feel like I'm back in some AOM (All Officers Meeting) in the MAW. (Marine Aircraft Wing) As a motor-t guy I always found these meetings interesting, but had trouble keeping all the acronyms straight. What we needed was just what we've got here...

a GOAT (Glossary of Acronyms and Terms)

to keep track of all our ERMA's. (Easily Recognizable Military Acronyms)

From there it seemed to spiral out of control until we finally ended up with a

FAGO (Fun And Games Officer), usually the FNG who got stuck reserving us space at the O-club bar.

BZ!

HD

[tracyballard]

you forgot about ONMYJFOIBAG!

[Cava3r4]

Stoppage... this term was used for the M-73 Co-Ax machine gun. Typically a round would work its way forward or backward in the links and cause the MG to Stop firiing.
then we would have to
CLear....the stopped belt out of the weapon.

Tracer (I think that is missing)...