M&P R8 Light Primer Strikes
Hello,
I'm the owner of an M&P R8 (basically a dressed up model 327) and I've been having issues with light primer strikes with it. I bought it brand new, and it came from the factory supposedly PC tuned.
Initially it worked great and was reliable with all ammo that I bought for it or reloaded (using winchester small pistol primers). However, after maybe 300-500 rounds, I ran a box of magtech .357 magnum through it, and found that it wouldn't ignite the primers in a good 30% of the rounds in double action. I then noticed that .38 hand loads using the same winchester primers were only maybe 50% reliable in double action, and occasionally they wouldn't even fire in single action.
I also later had an issue with the barrel unthreading itself (as many have noted happening with this gun and the related TRR8), so I sent it to be serviced under warrantee for that. I debated having them try to modify the action to make it more reliable, but I found out the wait for performance center work was like a year, so I just skipped it.
My question is, does anyone have any recommendations to solve the unreliable ignition? If possible, I'd prefer to avoid having the action retuned, since it does have a nice DA pull as is (and part of the high MSRP is theoretically that it comes that way). I've also heard I can switch to federal primers, since they are softer, but I've already got a good stash of winchester primers and would like to avoid paying ridiculously high hazmat shipping fees to buy the federals.
I've also seen extra-length firing pins available, from both Apex and Cylinder & Slide. Would those potentially help reliability? I've opened up the side plate before, so installation isn't something that's daunting to me. And lastly, before anyone asks, yes the mainspring tensioning screw is fully tightened, so that isn't the problem.
Thanks in advance for any advice!
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