Thread: Case capacity effects on velocity

Originally Posted by ebf

Tx VC, and yup Hamsav, looks like my earlier comment about seating depth was the wrong way round... found an article on the Berger blog that discusses seating depth differences for same powder charge, and seems to say the same (provided you not jamming into lands and increasing pressure that way).

More volume, less pressure, less velocity.

So now taking it to the next level, if you sort cases by weight and projectiles by weight, and your end goal is to have consistent reloads that minimize vertical issues, would you load the lightest projectiles in the lightest (greatest internal volume) cases ?

Yes, I know it's hyper anal, so humour me

If your goal is max velocity then lightest projectiles in lightest cases and find new higher max.

Minimise vertical means minimise ES velocity, don't think capacity is really relevant here as a bigger or smaller... just (and only if you are really really anal) weight sort brass and cull the extreme heavy and light cases.