Being consistent when reloading.
Everything should be as close to the same as possible.
I start with case prep. all cases are sized, trimmed,turned,flash holes De-burred,primer pockets
cleaned and all cases are weighed or volume tested and sorted within 1 grain batches.
Check the bullets for weight,diameter and meplat and sort accordingly.
Try not to handle primers with bare hands (Skin oil will contaminate them).they should seat with
the same force. (I don't use the press for this because you don't have the feel)I use a priming tool.
When assembling ammo use good practices and try to be consistent.
All of these steps may not be necessary but if you do everything you can It will produce low SDs
when you find the right components for your rifle.
Make one change at a time and use a good chronograph.
Any single digit SD is good. if you can get in the low teens (11 to 15 ft/sec) you are good. if you can
get at or below 5 ft/sec consider yourself done and go hunting.
J E CUSTOM