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View Full Version : Glock 30 hits 3" low of POA


Adirondack1
March 01, 2011, 19:16
anyone else have this problems.

AndyC
March 01, 2011, 21:07
Only if I flinch.

Has a known good shooter tried your pistol?

xtremerange
March 01, 2011, 22:23
At what distance to target? If you are shooting 50 yards, then that would be about normal for 45 ACP if the zero was at 25 yards.

starbuck
March 01, 2011, 23:03
I have the same problem but I'm afraid its not the pistol.

gunplumber
March 02, 2011, 10:26
what rear sight do you have?

It is possible your gun came with a +1 or +2 rear sight, and then it was replaced with a night sight or something, not taking into consideration the height difference.

Adirondack1
March 03, 2011, 22:30
Stock Glock white dot front white outline U rears and I'm talking 20 feet , and yes I'm an accomplished shooter with a 1911 this is my first Glock

Fn/form
March 03, 2011, 23:14
Some links for you...

http://10-8performance.blogspot.com/2010/12/glock-sight-in-tool.html

http://www.glock.com/english/options_rearsight.htm

BlasterLP
March 04, 2011, 00:24
not saying that it 'is' the shooter but I have seen shooters have trouble before when shooting the Glock for the first time at several different shooting ranges, hell even I had trouble myself with a Model 23.

The shooters wheel does help refresh even the most experienced shooters.

http://www.bullseyepistol.com/training.htm

I would also get the calipers out and verify the sight heights if there are no discernable markings on them.

gunplumber
March 04, 2011, 09:17
There are 5 different heights of "stock" rear sights

Stranger
March 04, 2011, 11:16
You might also check the ammo. I have found that the Tula .45 ammo is REALLY weak. As in, it drops about 6" from POA at 15 yards. If I stagger the magazine Tula/Winchester/Tula/Winchester the target looks like I was aiming at two different parts of the target. I have half of the shots in a group around the x/10-ring and the other half grouped 6" low at six o'clock.

Just something to consider.

Adirondack1
March 06, 2011, 22:19
Originally posted by gunplumber
There are 5 different heights of "stock" rear sights
An how do I go about measuring said sights so that you know exactly what I have Mark?

Front sight should be fairly simple, however the rear, do I measure from the dovetail cut or the top of the slide surface?

gunplumber
March 07, 2011, 09:33
Originally posted by Adirondack1

An how do I go about measuring said sights so that you know exactly what I have Mark?

Front sight should be fairly simple, however the rear, do I measure from the dovetail cut or the top of the slide surface?

http://www.parts.cc/glock/Parts_Acc/Images/Glock_sights.jpg

0.4mm increments.

Adirondack1
March 07, 2011, 19:14
The rear sight I have is second in from the left.

Small line over larger line.

gunplumber
March 07, 2011, 21:05
most glock 20/21 come with the +1 sight. The 9mms with the 0. Maybe the +2 will help somewhat.

Or you could get an adjustable rear.

glockfan
March 15, 2011, 05:43
I hate the stock Glock sights and always swap them out for some aftermarket ones, so I have never had this problem. I used to have a 30 though and with trijicon night sights found it to be extremely accurate -- by far the most accurate glock I have ever shot, so it has to be something like gunplumber is saying.

Fn/form
March 15, 2011, 17:54
Adirondack, is this a factory new pistol or just new-to-you?