I took my new Caspian Recon to the range today for the first time. I also took 4 Checkmate 8 round extended tube magazines (hybrid lips), 1 Checkmate 8 round flush-fit magazine (hybrid lips), and 2 Metalform 7 round magazines from an old group buy (wadcutter lips). I've reported elsewhere on this forum the problems I've had with the 8 round flush-fit magazine.
I shot 200 rounds of Federal HST 230gr hollowpoints and 150 rounds of 230gr FMJ.
I had two malfunctions, both with the flush fit 8 rounder. In both instances, the slide failed to close the last 1/8", a classic push feed malfunction, and both happened with four rounds left in the magazine. Both also happened feeding the HST hollowpoints.
This is a picture I took comparing the feed lips of a Checkmate extended tube 8 rounder and the Checkmate flush fit 8 rounder:
The extended tube mag is on the left and the offending flush fit mag is on the right.
You can see the the lips of the flush-fit mag flare out at the base. I believe that this is causing the magazine to hold onto the rim of the case. What I think is happening, is that the slide hits the rear of the case and has to overcome the resistance of the indentation, but once the case breaks free, it pops out ahead of the extractor.
When I cycle the slide slowly by hand I can get it to do this. The other hybrid lipped magazines feed smoothly.
I would appreciate it if someone could snap some pictures of their Checkmate flush fit magazines (the 7 and 8 rounders both use the same tubes I believe) so I can see if this is a problem with just this one magazine, or if it is common in all of those magazines.
Thanks.
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