Gen 5 Glock 17 accuracy issues with 147 grains

[26 Inf]

“maybe just a bad manufacturing lot. Have you tested the same ammo (both 124 and 147) out of other 9mm?”

Plan on that tomorrow.

Do you have a chronograph? Might want to see if there is marked differences in velocity.

Darren Newsom, ACI, knows how to make ammo. I've shoot thousands of his rounds and probably watched over a million being shot by our students. I doubt it is the ammo, but give ACI a call (406) 777-1222. The reality is that no manufacturer is perfect. I'm sure he'll make it right if there is a problem.

[sundance435]

I'm curious to see what the results are out of a different gun and the 17 with different 147gr. It's pretty common for different brands in the same weight to have slightly different POI, but not to that degree. I'd be pretty confident that it's just the ammo. I pretty much only run 147gr Speer Lawman out of my Glocks because it's been the most consistent. 115gr loads printed differently when I shot them (Lawman again). Incidentally, I just picked up a Gen 5 17 that I haven't shot yet.

[Bret]

I’m going to try to pick up some different 147s tomorrow and try those.

This is exactly what you need to do. Use a known good quality 124gr factory load as a control. If you have a friend with you, have him hand you the magazines when you shoot. I'd try three different 147gr loads at a minimum.

[Vic79]

Just so it doesn’t get lost in this post, I contacted Armscor and explained to them what was going on and the rep agreed it was probably a bad lot of a ammo and they will take care of it. Could’ve been the first batch Monday morning or the last batch Friday afternoon....shit happens. I’ve had good luck with all the other ammo I have used from them.
I’ll still post pictures of the targets and ammo used. Just in case anybody else wants to geek out and look at targets or make fun of my groups. either way here they are.
All shooting was done from the 25yard line
Glock 1 or #28 is mine
Glock 2 or #26 is another gen 5 17


Glock 2 American Eagle 147 grain 10/10


Glock 2 Armscor 147


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Glock 1 Armscor 147 2/10


Glock 1 American eagle 147 10/10


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Glock 1 Speer gold dot 124gr 5/5



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Glock 1 5/5
Glock 2 5/5 blazer brass 124gr FMJ 10 rds total




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Federal HST 147gr 10/10



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I didn’t get a chance to run the gold dot through Glock 2 but here is 10 rounds of federal American eagle 147 and 7rds of federal hst 147



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[Vic79]

And yes there are only 8 rds on paper on the second pic 5/10 with 2 rds not on paper


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[MountainRaven]

You know you can put multiple photos in one post, right?

[Vic79]

You know you can put multiple photos in one post, right?

Sorry. I didn’t know if that would make it get all cluttered. And I want to get my post count up LOL.