4070 SS

[bruce moulds]

fogman,
you need to think in terms of bore diameter or groove diameter, rather than greaser or pp.
and then what is the chamber for, bore dia or groove dia bullets?
if your chamber is for groove diameter bullets, you should be able to slip fit a groove diameter bullet in fired cases.
in actual fact most chambers are a little oversize, so the bullet needs to be a little oversize to fill the fired case.
a match bore diameter chamber should slip fit a bore diameter bullet.
keep safe,
bruce.