Palma match brass?
Hi. I'm having problems with my 308 Lapua small primer brass. I've tried Rem and CCI primers but they're both cratering rather badly. Bad enough that I can't get the cases in the shellholder to resize.
Has anyone else had this experience?.
I haven't tried magnum primers in this yet as I think that would be defeating the purpose of a small primer. [:(]
Has anyone else had this experience?.
I haven't tried magnum primers in this yet as I think that would be defeating the purpose of a small primer. [:(]
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Is this with your reloads. Have youe used this brass before with the same combination of components. Sounds like pressure issues. 0 -
have you trimmed and reamed them to fit YOUR chamber sounds likr too long or to tight neck in your rifle. Most times less then max loads give smallest groups. 0 -
(1) weak or broken firing pin spring
(2) too large a firing pin hole
(3) you are pushing the shoulder back on the cases creating excess head space.0 -
Nope, none of the above. Turns out the bolt face firing pin hole has been recessed by some intelligent individual at the Remington factory.
I have no comeback because I bought the rifle used and without firing it sent same to the smith to rebarrel.
As well Leupold and others don't have the same attitude to their products as does the Big Green[:(]0 -
Treadlightly,
Welcome to the GB forums!
"Nope, none of the above."
Actually, yes, since 'too large a firing pin hole' covers several sins which occur in or around the firing pinhole, including your variation.
Once again this points out why it is extremely difficult to properly diagnose firearms problems by remote instead of being able to examine the rifle and the ammunition in person.
It's also very easy to blame a corporation like Remington for everything, even for some of things that may not have been their doing. Your example may very well have occurred at the factory or at the hands of some well-meaning individual or a less than careful gunsmith.
This points out two things to mention for the present or future for those giving thought to a re-barreling project:
1) It is generally considered to be a waste of time, effort and money to re-barrel most non-custom rifle receivers without first blueprinting them. This can also be referred to as an Accuracy Package by some gunsmiths. Commercial receivers can usually benefit from having all of the contact surfaces brought into parallel, perpendicular or concentric relationship. This includes the front face of the action, the rear of the lugs with the lug seats, the bolt face and the firing pin hole. The threads are also re-cut based on the bolt raceway.
2) If your gunsmith merely re-barreled your action without bothering to consider these surfaces and treating them appropriately, he did you a great disservice. Correcting all of the surfaces above would have not only helped with accuracy but would have corrected your problem on the bolt face as well.
You can have the bolt face fixed but it changes the headspace which will require setting the barrel back slightly. The rest of the accurizing will have to be ignored since cutting new threads would preclude using your new barrel. You could lap the lugs after the boltface is fixed but before the barrel is set back.
Best.0
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