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Old August 15, 2018, 11:39   #1
hueyville
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Marine Corp Mk 13 Mod 7

Seen a lot of varients over past couple years leading up to this but lately all the fresh pictures seem to be exact or very darn close in configuration of the Marine Corps Mk 13 Mod 7 sniper rifle that will be placed in the hands of Force Recon, other specialty troops and snipers. It's designed so that with the suppressor attached and stock folded it's roughly the same length as the 7.62 M 40 sniper rifle. Final decision on cartridge is 300 Win Mag and believe a lot of the reason is can use specialty 30 caliber projectiles already developed and pull from a wide variety of off the shelf projectiles to define loads for the field.

Have seen a lot of different stocks, accessory rails and even AR 10 chassis repeaters as the Marines decided what their rifle for touching folks out in the distance really needed to be. Whats great is many of the photos of different trials rifles have collected were not taken on a range but in the hands of Marines on roof tops, in a rocky hide overlooking a valley in Afganistan or hanging from a bungy cord in the door of helicopers. Seen them in FDE, green, different camouflage patterns even a few digital woodland that were very cool.

Some of the developmental rifles were painted FDE with a rattle can and sent out and by time pictures surfaced could tell they had been used and abused getting real use covering troops and protecting forward bases. It's been fun watching the way the Marines have progressed and how that once they settled on what suited the mission best it doesn't look like they are going to have a half dozen different main varients with changes from rifle to rifle in some cases but have settled on a rifle, are not having it built and pretty much the only variations are going to be color and mission specific optics.

On the range with the Mk 13 Mod 7



Handguard and attachment point seem to be a tad different between the greener rifles and the FDE.



Without suppressor unfolded.


Without suppressor folded.


Mk 13 Mod 7 viewers right and AR 10 viewers left. Those two men working as a team in a hide would most likely be hell on wheels introducing terrorists to their piles of naked virgins. Imagine trying to slip through their field of fire with the 30 caliber repeater making them dance and the turn bolt drilling holes in the ones that try to be slippery and think they can try an end run out of range of the 7.62 NATO.



Now my question is will these slow Art down building M1a/M14's long enough to at least put a FDE and a green unit in his kit?
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Old August 15, 2018, 14:25   #2
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Does anyone have any info on how they use the Pig rest with the sling like the Marine in the photo and what sling they use with it?
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Old August 16, 2018, 11:39   #3
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.300 Winchester is a great choice that opens up the option for a lot of nice bullets, and thus way more suitable than 7.62 NATO. Good on them for that choice. Even better if their AR-10-pattern rifles are in an appropriate 6.5mm cartridge.
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Old August 17, 2018, 10:02   #4
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While USSOCOM procurement is steering toward the 6.5 Creedmore and is already converting M14's and AR 10's under SOPMOD the Marine Corps sniper version of the AR 10 at present is known as the MK-11 Mod 1 SRS (Sniper Rifle System) and is 7.62 NATO. It is designed to munch 7.62mm M118LR (Long Range) cartridge. The 7.62mm special ball (M118) bullet consists of a gilding-metal jacket and a lead-antimony slug in a boat-tailed bullet weighing 173 grains. Regular 7.62mm ball ammunition should be used only in an emergency. The sniper rifle can also fire M993 AP (Armor Piercing) ammunition in special situations.

There are two suppressors seen on these in the field but the smaller one is the standard issue unit at aproximately 12", 1 lb. 14 oz and reduces the weaponís blast signature by 28 to 30 dB. Marines like that it prevents dust when fired in dry climates like Iraq or Afghanistan and makes them harder to be seen post shot by countersnipers. The suppressor for the M110 is just over 14 inches long and believe it finds its way onto some Mk 11's. The rifle uses a Leupold long-range tactical 3.5-10X variable power scope.

Understand the Marines love these at the unit level as the guy carrying a sniper rifle is often the first guy engaged and from a distance it's difficult to tell a Mk 11 from an M4. Yes it's bigger but has the same profile and from a distance it's not just screaming SDM/SPR sharpshooters rifle. Have read unless in a FOB or already in a firing position many carry their Mk 11's without the suppressor to keep the appearance of a standard infantryman and not that of a designated marksman to keep the odds of a one round at the sniper odds lowered. It supposed to have upgraded iron sights that make 500 yard shots reasonable if they break a scope or choose to not use it.

As the the special operations community of all branches move toward the 6.5 Creedmore as well as the Army will see what the Marines do. They like that the Mk 11 shares parts like trigger, pistol grip, firing pins and others with the M4 making in theater armorers job to maintain weapons easier as it works the same and have less proprietary parts to stock. Also it's easier to train troops familiar with M4's to adapt to the Mk 11. Many Marine Snipers have resisted the Mk 11 and prefer their M40 bolt rifles but others love the ability to load up 20 rounds and fire as fast as can run the trigger in urban fire fights. Think we will start seeing small teams as pictured where one man will have the new Mk 13 Mod 7 and his spotter will carry the Mk 11 and both can get busy if the situation becomes saturated with bad guys.
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Old August 18, 2018, 18:45   #5
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I don't plan on slowing down much on the building of my M14s.
Been getting plenty of time in on the precision bolts in 6.5 though.

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Old August 18, 2018, 23:08   #6
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Quote:
Originally Posted by Bertellione View Post
Does anyone have any info on how they use the Pig rest with the sling like the Marine in the photo and what sling they use with it?
Iím not 100% the on this but I would speculate that he is going to be shooting from a seated position and will be using some forward pressure which will help stabilize the rifle while he is shooting.
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Old August 20, 2018, 11:58   #7
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Quote:
Originally Posted by grumpy1 View Post
Iím not 100% the on this but I would speculate that he is going to be shooting from a seated position and will be using some forward pressure which will help stabilize the rifle while he is shooting.
You are exactly right: downward/rearward tension on the sling helps prevent any "teeter totter" effect, which, on a good tripod, is going to be minimal to begin with.
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