Years ago, I ran 308 Win 40 firings with Lapua brass no annealing, with max loads of Varget and 155s. The cases start getting head separation after that from trimming, stretching, and firing cycles.
But a guy won a match with cases that had 56 firing cycles on 308 Lapua brass with his load and he did anneal, but I didn't recall how often...they didn't have the automated annealing machines back then.
But a guy won a match with cases that had 56 firing cycles on 308 Lapua brass with his load and he did anneal, but I didn't recall how often...they didn't have the automated annealing machines back then.