Took my P07 to the range today for the second time. I shot 88 rounds (yes I know strange # but it was what I needed to get to an even 200 rounds). This was old and assorted ammo that about 10 years ago or so I threw into a 30 cal. can so I can't say what the ammo was other than it was old.
The P07 shot fine with no FTFs or FTEs. I also shot 50 rounds through my FNX 40 and I have to say the P07 is a far smoother and more comfortable pistol. A lot of it may have been the 40 vs the 9 though but there is no denying that the P07 feels like it was molded around my grip. So that's 200 rounds flawless. I did have 1 stove pipe but that was me forcing the gun to do something it wasn't designed to do, firing with the magazine out. It's a common issue with semi autos.
Anyways to the issue. I had 1 magazine that the slide failed to lock back on every time. The other two locked back fine (except once but my thumb may have swiped the slide catch). I can get the slide to lock back manually. I did not have this issue last time however I picked up a third magazine between now and then and I forgot to make note of which were which but I have a suspicion that the magazine giving me problems is the new since 2 mags worked last time and 2 mags worked this time. Plus the one giving me issues doesn't seem as beat up as the others.
Is this something to be concerned about as far as a possible problem with the gun itself or do you think this is something that can be chalked up the the lone magazine? I plan on taking the mag apart and cleaning it and next time I will buy brand new ammo in case this was an ammo issue. I don't think it would be since the othe mags were fine. I have marked the troubled mag to help distinguish it from the other two.