I have 400 brass that vary in weight from 150-170 grains after resizing, annealing, trimming, and polishing. They are unprimed. Many fall in the 155-160 grain range. What are acceptable variations before a person worries about high pressure in the heavier cases?

Should I work a load up in the heavy cases and use that load in the lighter weight cases as well? Will pressure, velocity, and accuracy vary between them if I do?

I plan to use old 150 grain cup and core semi round nose bullets. Any load suggestions?

Thank you.

Last edited by Fireball2; 01/08/19.
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