Quote:
|
The brass was new old stock, had been loaded for several years.
|
I think you are saying that the brass was new when loaded, but the cartridges have been sitting around loaded for a few years. If I'm getting that correctly, I would have to rule out the brass and think your problem is either the rifle (possibly having a headspace issue) or more likely improperly sized cartridges that have had the shoulder pushed back, thereby creating excessive headspace.