The muzzle OD measures .850".
No. 10 mm is .393", the change would need to be equal .25". Later today, I will post an image from the BPI catalog, that page shows every card wad that is available. That catalog is in my reloading room where my hound dog sleeps in the air-conditioned room. If I go in there early, my coffee time is done.
The funny thing about slug shooting is that you can change one thing and it upsets the apple cart considerably. In order to make a component stack easy to resolve, these waxed cards should be cut in .125", .250", .500", .750", and 1" lengths.
Amen! But no matter the design, why add a .250" jump to the problem. All this doesn't matter if the purpose of the slug is close in work or just having fun, but I need the chunk of metal delivered at least 100-yards downrange.
Haah! That's where I'm at now; an owl feather is hanging on a chicken wing bone with my hound dog baying and I'm canting nonsensical hull component stack possibilities while I reload!
My thoughts, as well. I know the Lee slug was tapered to fit a pressure wad cup and I thought about blowing it out to a full groove slug in a custom mold. My problem is that I'm done spending money on this. With that taper, there is no way to paper- patch it. I worked on this yesterday plus the work is too time-consuming for me.
Where I'm going with my rifled guns, is back to my Accurate 73-470S bullet mold. I will powder coat it and shoot it with the 3" hulls. Here, the rifled Marlin, the Hammerheads are extremely accurate.