Moved to the Ammunition and reloading area.
Internal volume will vary some. Always use published data as people with more sofisticated equipment have already worked out most of the hurdles for us.
Not knowing how much loading experience you have I will give some basic info. One piece, compression formed hulls are the most desirable. Multi piece hulls have plastic or fiber base wads severly limit the available space and can work loose causing a bore obstruction if loaded too many times.
As a general rule, I will not load such multi piece hulls more once. There are too many higher quality hulls available.
In life, strive to take the high road....It offers a better field of fire.
"Robo is right" Fuzzball