Glock 20 Major Reliability Issue!

[Marshall_Tx]

I have a Glock 20 (10mm Auto) that I purchased not too long ago in January and I had previously fired Remington's 180gr fmj out of it flawlessly but recently I went to TopGun shooting range here in Houston with some really hot 13-1400 fps ammo 180 fmj 50 rounds and 50 rounds of remington umc fmj. I alternated between the two. When I fired the remington's the gun functioned perfectly but when I shot the really hot ammo, on 2-3 accounts the gun failed to eject, and once after the round fired the slide didn't even cycle. It just stayed in the chamber and I had to rack the slide really hard for the empty casing to eject. I was not limp wristing it all. and my magazine are all new with a tight mag spring. Is this common? I like the 10mm allot because even everyone at the range kept looking down my way to see what I was shooting especially with the hot rounds but I don't want to put my trust into something that may or may not function 100% whereas my .44 S&W 629 has never given me a hiccup. Also I keep my gun very clean and oiled. The ammo I used was DoubleTap 180gr fmj. Any input or suggestions would be greatly appreciated

** This was also under rapid fire/double or triple tap from the DT ammo, it was accurate but kept showing problems.

 

[Tomcat47]

Sounds like HOT = TOO HOT!

Sounds completely like a ammo related issue!

What did the spent cases look like on the DoubleTap?

and the primers...would like to see the primers on the spent case as well!

post pics of the spent Double Tap cases if you have them.

Does it still cycle your remington just fine?

And my opinion on the S&W 629 as in comparison.....that is not a apples for apples comparison.

A 629 revolver is not inherently ammo picky....hot or not! Nor does it require the slide to remove the spent casing....just sayin!

And I dont even like a Glock .... but I dont think it is your pistol...

 

[Marshall_Tx]

no there were allot of spent shell casings on the ground and I didn't want to dig around to find them and it never hiccuped with the Remington ammo, but from what i understand remington reduces the pressure and thus the velocity. Also with the hot ammo the empty cases would shoot up very fast instead of out, and would hit the top of the cage and hit me in my head or ricochet around allot more than the Remington ammo.

 

[Tomcat47]

Marshall.....In a Glock 20 10mm I would not much worry about the reduction in pressure and velocity and I would not buy the Double Tap ammunition for that pistol ever again.

I will suspect that it was too hot and splitting the cases, therefore causing you a Failure to Eject situation.

If you had gathered up a few of the spent cases they will usually tell you a story about what goes on when it is fired. You will see splits, cracks, case separation and backed out or blown out primers.

When you have such issues in an autoloader, it is good idea to collect evidence. When an autoloader Fails to Eject one ammo over another...look at ammo first! If it fails to eject more brands, suspect the pistol needs looked at.

I have a friend that has one of those 20's with about 7k (my educated guess ) rounds through it...and I do not know of absolutely 1 hiccup.

 

[SharpsDressedMan]

Kind of like: "It only hurts when I do THIS." "Well, don't DO that!" Use ammo that works.