Thanks for the replies.
The load I am using now is.. 2 3/4" Cheddite hull
209 Cheddite primer
19.9 gr. Hodgdon Universal Clays
Claybuster CB0078-16 wad
1 oz. lead shot
I had been using the Claybuster CB0100-16 wad that is called for in a 1 oz. load, but the crimps were unusable,
they were sunken in and the shot was running out. The wad I'm using now, Claybuster CB0078-16 is supposed to be used in 7/8 oz. loads,
but it makes the 1 oz. loads usable, but far from perfect. ( the CB0078-16 wad has a little nub in the bottom of the shot cup)
Pete