Blue68f100
Member
When you did the plunk test did you push the round fully in by hand? If not redo this test. It may be that your into the rifling when the bolt closes forcing it the rest of the way.
No I did push them with my thumb and the round didn't move anymore.When you did the plunk test did you push the round fully in by hand? If not redo this test. It may be that your into the rifling when the bolt closes forcing it the rest of the way.
I've got 5 rds. loaded with 4064 and will test them today hopefully.Then I'm going to out on a limb and suggest that 4895 switchout.
I would explain it as most of the problem ,looking back has been old cases with loose primer pockets. Whatever else went into it and contributed to the problem is what it is. But I would say after yesterday I think it is solved. Igot rid of anything that looked 'old' or had a question.JONB... `Glad to hear things finally worked out using the newer brass (...though i still cannot fathom how using older brass simulated an 80,000
psi head expansion/primer pocket blowout as was your experience)
For record, I'm regularly reloading tons of 1963 Greek HXP 30-06 from CMP (that's 54 years old for us uneducated deplorables) with totally normal results (including chrono speeds).
Anyone else here able to weigh in on what JONB experienced as a brass issue?
I have done that in the not too distant past.May want to check the volume of the old vs new brass and see if there is any problem. Dry weight may not show any difference, should use water volume. I have some older brass that has a lot less volume than new. This at times can run you into problems of over pressure.
Range report- A ok. Everything went well. Primers stayed in and look very good. Getting rid of ALL older brass.Just keeping once fired factory and the bag of new brass. Really happy!.
I WISH! I will never be able to get those groups. I need to do something about my trigger. I have the Mauser 98 action and military trigger. I have such a hard time controlling when the shot is made.with all the trouble that I've had I still am working on getting the scope back adjusted. The gunsmith that did the head space job I'm guessing had the scope off and it was so far out. I mean the full width of the paper off! Like a foot and a half.