CJW Posted February 10, 2019 Share Posted February 10, 2019 I just swapped my M2 parts into a Roth XB3G receiver. The action parts are the same as I've been using for quite a while—bolt, trigger assembly, and recoil spring are all the same. Dry fire function testing had no issues. In live fire today, however, this issue cropped up, where the gun would fire, eject, and cycle, but the hammer ended up against the bolt, rather than cocked...therefore dead trigger. It happened a couple of times in about fifty rounds of bird (1145fps), not at all in about a dozen slugs (Fiocci 1300fps), and pretty much every time on 6 or 8 rounds of buck (Fiocci 00 low recoil). These are all the same ammo types I've used in the past without problems. Can anybody tell me what can cause this problem? Since the gun was cycling, the bolt was definitely traveling far enough to cock the hammer, and the bolt locked open on empty with all ammo types. Thanks for your help! Sent from my HTC U12+ using Tapatalk Quote Link to comment Share on other sites More sharing options...
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