OK, got the press, got some 65mm, 67mm and 70mm cases, powder, primers, #6 shot etc etc.

I'm loading 32g #6, 1.7g Maxam CSB3 powder, 4mm overpowder cards, fibre wads.

The problem I'm having is the shot column is too short for both the 67mm and 70mm cases. The 65mm wont crimp in the Lee Load-All press.

I'm finding the crimp caves in as the shot doesn't reach the right height in the case.

Can I just use cork filler wads to pack it up to the right height? Will this adversely affect the cartridge performance?

Many thanks