10ga slug mould design for double

[trk]

Now that I've found someone to make a pair of rifled 10ga screw in chokes for my Churchill Windsor I double,

I'm looking for suggestions for slug design for 2 to 2-1/2 oz 10ga slugs. I'll build the mould.

[IcerUSA]

Whats the inside dia. of the wad and the inside length of it, would you want a hollow base or a hollow point or just a RN Slug for it ?:castmine: Or will you be useing paper wads and a slug the dia. of the shell caseing ?