Thread: Split case

Hi,

I am firing various 330brit cases, Privy, DI Z 1942/1943, S&B and Winchester. The older 1942/3 brass is failing far more frequently (2 or 3 times) than anything else, so I'd think this is expected. A also shoot with "old timers" who are still shooting the military loaded ammo and this looks typical (and worse). You could try annealing the necks but Im not sure that would do anything.

I cant see your primers to see how flat they are but if the load was too hot I'd also expect to see the white ring of death 1/4inch up from the rim as the action stretches and hence the brass. If you have mild loads ( eg 38gr adi2208) 10 reloads on the brass seems Ok. Typically using the Lee quick trim I get <1thou or so stretch each firing (I size each time). 43gr 2208 and 2 or 3 reloads is more like it and noticeably far more stretch per firing.

PS the above is for a No4, on a Pattern14 I cant see any stretch to speak of as yet but Ive only just got it and done one firing.