If you full length size,trim and chamfer,deburr the primer pocket and sort by weight (If possible keep batches within
1/2 to 1 grain.
load test loads in each weigh group(I have found great accuracy by taking my pet load and changing case volume.
So start with well prepared and sorted brass and you will
find it sometimes shoots better than reloaded brass.
After 3 loadings it begins to work harden .
If you neck size only fire forming is a must.
Prep at least 200 rds to start with that way when
you find that pet load you will have enough brass to
last a long time.
J E CUSTOM