I just bought 300 pieces of 303 british brass once fired and some new.I have made 445 brass from 30-40 krag before and this 303 is real close to the same case dimensions.Would the 303 work okay? Is the 303 alittle stronger than 30-40 brass.
I don't know about the 445, but I do know that both work for forming the 35 Rem rimmed so they are close enough to each other. The rims are .030 to .035 bigger than 445 spec tho.
