r/CZ457

Not bad for my first time.

I purchased an Extractor Set a Firing Pin, Extra Strong firing pin Spring and the Stainless Steel Safety Pin. I installed all of these into the Factory Bolt. I took it out to the range and had nothing but Failure to Extract Problems. I also had a CZ 457 At-One and I tried the Factory Bolt from the At-One and I had Zero Issues. Not one Failure !!! When I got home I put all the Factory parts back together on the bolt. I took it out today and still had Failure to extract issues. Not as many but still too many. Around 10 failures out of a box of 50. I can’t figure out why I’m still getting the Failures ? Have any of you had any problems like this with your CZ 457. I have a Lilja barrel that I put on a month before I installed the Pete’s Pillars parts but I had no issues. Stumped !!! Any suggestions or advice ? My CZ 457 MTR is on a MDT Gen 2 Chassis.

Hello all. I shoot a modified 457 for local club NRL22 matches. Ive tried aluminum and plastic ejector blocks and seem to go through them fairly frequently(4months)...is there a better option on the market that won't wear out so fast?