Am working up 308 loads for my brother and his boys. Have been using Remington brass and about got the load worked out, and then my brother brings me about 250 of these LC 67 Match brass from his father in law. Looks like once-fired, but can't be sure. (Hoping it wasn't fired in a machine gun.) Questions...
Is this a thick-walled brass with significantly reduced capacity compared to the Rem brass?
If so, any recommendations how far to back off the powder charge from my existing loads?
Roughly how many loads I can get out of these brass?
Any other quirks to this brass I should know about?
For reference, my current load is 46.3-gr Varget, Rem 150-gr core-lokt, Rem brass, CCI primer. Thanks in advance for any advice.