victor3ranger
Well-Known Member
lol the far right ones look unsurcomsizedI gave the Peterson Basic Belted Magnum brass a second chance after seeing this thread. I attempted it about 2 years ago to make 375 Ackley Brass but the necks crinkled; the 416 Rem Mag die fixed that.
From left to right is an unsized Basic case, .416 Rem Mag, .375 Ackley, 8mm Rem Mag and 7 STW. The two on the far right folded when I annealed between the .375 Ackley and 8mm Rem Mag. Annealing seems to make the shoulders too soft to withstand the pressure of neck sizing to this degree
Turtle head brass