35 shooter
Well-Known Member
Just wonder if you checked & sized within an hour after heat treating if that would matter all than much ( softening the drive bands)
Doesn't it take a few days to achieve hardness?
JW i heat treat then size...but i make sure i do it somewhere in a 12 hr. period before they get hard.
They still acheive 27 bhn in 3 to 5 days after sizing.
This is with ww alloy ht'd @465* for i hr. and dunked in water.