hi jeff @MRC welcome to AH . just wondering why your "production rifle" was never going to meet matts needs. i dont know how many rifles you make, but with these type of calibres i would have thought they would all have been more of the custom build type? if i was going to buy one of your rifles i would hope it would work in different circumstances where you might not be cycling the bolt in the same manner each time. i know the long bolts can "wobble" around when you cycle them but i wouldnt have thought that would make any difference in the feeding, extraction or of bullets jumping out.......not having a go , just seemed a strange comment to make. cheers mike
Maybe you should be asking for Matt's rifle performance test.
I have also seen where someone has had trouble using a rifle where another person does not.