Since pics were taken I have chamfered the muzzles
And hand filed them to clean up burrs
I have not tested any ammo yet the northern US has been too cold for this African boy.

I will definitely look intp lapping the tool marks
Was going to stick to sabot ammo to avoid the leading issues

All the ammo purchased to date is 3" sabot ammo 8 types.

It will be a while till I get back to my hobbies I am assigned abroad.

Nitro