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Posted: 3/6/2009 10:34:27 AM EDT
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So I took advantage of the warm weather and hit the range with my new Colt 6920 the last couple days. I put 522 rounds through her in 2 days. The only problem I had cropped up on the last mag. I had shot a mix of LC XM193 (my main stash... just fired a couple mags worth to ensure good function), some Remington Q3131, a little PMC, and a lot of Wolf. Everything worked great, EXCEPT the last PMAG, which was loaded with Wolf. Now the FIRST time I used this mag, it was loaded with LC XM193 and functioned 4.0. But when the wolf was in it, it didn't hold the bolt open on the empty mag. I had a few rounds left in my range bag (Wolf only sadly), so I did a quick check. I loaded a cartridge into the PMAG and fired... the bolt closed. I loaded one into a USGI... bolt open. Loaded one into another PMAG, bolt open. One more back in the first PMAG, bolt closed. I want to emphasize that the rifle cycled correctly with a full mag, the bolt just didn't hold open on the empty mag. The bolt WILL hold open if I hand cycle to an empty mag. All other mags worked fine. I have another 250 rounds of Wolf I wanna get through the gun to call it good to go, and I think I'll sacrifice another 10 rounds of my stash to ensure good function. I intend to test it more next week. I'm thinking I have a squirrely PMAG? I was thinking "short stroke" and trying a lighter buffer, but the good function when cycling and the proper operation with the other 8 mags worth of Wolf seemed to indicate against this.
Any thoughts? |
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Your not the first to comment on a Pmag not holding the bolt open, nor I feel to be the last.
The last OP's Pmag follower was chewed up a bit, and the problem at hand. If this is not the case, then see if just pulling the mag down and cleaning it solves the problem. If still a no go, then might be time to rebuild the mag (new mag spring). |
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Quoted:
Your not the first to comment on a Pmag not holding the bolt open, nor I feel to be the last. The last OP's Pmag follower was chewed up a bit, and the problem at hand. If this is not the case, then see if just pulling the mag down and cleaning it solves the problem. If still a no go, then might be time to rebuild the mag (new mag spring). Hmmm.... The mag is brand new. This was its first trip to the range. I may just pull it apart and lube it and see what that does. Thanks! |
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Quoted:
Wolf is underpowered ammo....it short stroked enought on the last round to not engage the bolt hold open. That is a possibility, that's why I want to test this mag with the XM193. If the mag holds the bolt open with ammo, I'm not sweating it. I just use the Wolf for cheap(er) trigger time. However, I am suspicious.... the phenomenon seems isolated to THAT mag. The USGI, Lancers and other PMAGS all held the bolt open with Wolf. But this one fialed to hold the bolt open 3 times in a row with Wolf, while cycling the rounds themselves just fine. I'll hit the range again Monday and see what it does with some XM193. |
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