I have sized a bunch of Win 284 Win brass down to 6.5mm with no problems at all using
RCBS 6.5x284 dies.
I did have problems stepping down from 284 to 6mmx284 years back, but used 25cal intermediate die and
then 6mm. That also worked fine. I only us RCBS dies.
I have not annealed brass for a coons age. I size my brass full length to just clear for head space
for the gun I am loading for. Have had brass last for 20 firings in some guns with this process.
"The significant problems we face cannot be solved at the same level of thinking we were at when we created them."
Albert Einstein
At Khe Sanh a sign read "For those who fight for it, life has a flavor the protected never knew".
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