Size cases or not?

[Don McDowell]

In the Shiloh and the Winchester, I don't size until about the 3rd or 4th reload, then I full length size and do it again..But those rifles are chambered tight enough a person can do that an have good neck tension on greasers. The other 45-70's not so much..
Shooting patched I full length size with my Lyman die and it sizes the cases just about right for the patched bullets I use.