[Unclenick]

As a follow-up, my Compass Lake built Bushmaster's bolt is fit to the gun, so I wouldn't swap it without sending it to Frank and Theresa for fit check. I do keep a kit with firing pin and all small parts and springs for the bolt and trigger groups.

I wasn't familiar with the Wylde chamber. Good to know. If it's half way inbetween the NATO and SAAMI spec chamber, then standard sizing dies in good shape should be fine for it with brass that was originally fired new in that same chamber. If you buy once-fired brass, I expect you'll run into some that needs a small base die at least on the first pass. Some gets so badly stretched or its rims so badly bent in full auto fire that it won't come into spec no matter what you do?