Posted: 9/2/2015 6:44:37 PM EDT
I purchased a M&P 9 maybe 5 years ago. First time I shot it and afterwards got the Apex DAEK and installed. Sweet! No problems with hundreds of rounds.
Today I was doing some double taps but decided to shoot some Monarch steel 9mm vs Monarch brass or WWB. After about 3 mags of 10 rounds each I had what I originally thought was a squib round. I got a bunch of smoke out of the breach area and thought for sure I had just put a bullet in the barrel. But I could not retract the slide. I had to slightly knock the slide against the bench to get it to begin to slide rearward. I got the round out but the bullet was still in the case however the primer had been pierced. I had meant to bring the round back to check the powder charge but left it at the range. Also the primer was pushed back slightly out of the case.
I continued to shoot the steel ammo but kept having light primer strikes occasionally. Every round that failed to fire I could manually operate the slide, recock the striker and the round would fire on the 2nd attempt. Every one of them without fail. After about 150 rounds I switched to WWB and fired about 50 rounds more and did not have any more FTFs. So I assume it was possible hard(er) primers on the Monarch steel cased ammo.
Thoughts? Anyone else see issues with light primer strikes with the DAEK kit?