Paul I'm on my way home. I'll post tomorrow

Mine has a couple of problems. The liner sits down in the shotgun barrels a bit. The 40/70 cases I bought had too thin a rim, where as the 30/40 Craig had a thicker rim. The primers wouldn't go off with the thinner rims. The liner was bought from a guy online on the west coast, so who knows what it was made for. The only Lyman moulds in 40 cal. are for 400grs. I'm thinking of making a couple of hundred and then machining it down to make a 330gr bullet. The barrel checks out at .408 so we figured a .410 lead bullet would be correct. The problem I have is even though it's a straight walled case, there is a slight tapper so the case can be extracted after firing. Well, the cases I fire formed are .408 at 2.2" long, and the short ones that were saved after splitting the neck that are 1.8" long are .410. So who designed a 2 1/2" case [ stamped on the liner] that would take a undersized bullet ? I've shot both the short and long case shells, and they print the same on paper. The long ones look cool, but I only have 11 of them where as there's 20 of the short cases. Anyways, it's kind of fun messing around trying to make something work without knowing what was original used. The only info is what's stamped on the liner - 10ga 40 - 2 1/2.

paul it sounds like you might be able to use a 410 shotgun shell of 2 1/2 inch length..i may be off base but it might work if so you will have plenty of ammo cases....i truly hope you get a deer with this round...charlie

A 410 won't fit in the chamber - would have been nice.