Custom Magazine for 1911?

[thatguyoverthere]

Just don't oil it.

[thatguyoverthere]

I received my new Tripp Cobra magazine for my STI 1911 a few days ago, and finally today had a chance to check out this combination of mag/gun/ammo.

And I think I'm about ready to declare it a success.

I ran about 85 rounds (all I had on hand) of my "problem" ammo (Federal Guard Dog) through the new Tripp magazine without a single failure. Based on my prior experiences with this ammo in my other magazines, I normally would have seen at least three instances of the malfunction I was having with this amount of rounds fired (generally occurred about once out of every 20-25 rounds).

Once I stock up on this particular ammo again, I'll run at least another 100 rounds of it with the Tripp mag and look for no failures before I more confidently call my problem resolved. But it certainly is looking much better now.

Thanks to all who recommended I try the Tripp magazine. While my STI and Wilson Combat magazines seem to work just fine with regular 230 grain ball ammo, the Tripp magazine (so far) seems to have done the trick for me for being able to run this particular short, flat nose ammo that I prefer to use as my SD rounds.

Life is good!

[The Annoyed Man]

Excellent! I kinda sorta thought they would do the job.

[txgho1911]

For testing and completing more test cycles to reach the last round you might load the mag short with only 3 rounds. This way you can get 33 successes if that mag is the fix.

From the descriptions I think this may be primarily from the slide stop to follower interface stopping stopping the slide short of the last cartridge.