Cimarron Red...., I have not settled on anything yet, thanks for the link.

Not sure what chamber casting will do. The rifle has been in the family since it was bought new. These ol highwalls back then came with factory hand loading tools, i.e. hand press with dies, 90 grain powder scoop, bullet mold, primer tool. My father who handed it to me before he passed, was the last...

Thanks guys! This has been a lot of fun. I'll post what I do with pics. You all have given me more info and ideas in a couple days then I've come across in years. Thanks, great group here.

Best I figure the 40-90 Sharps (Straight) is as close as I ever got. Case length, Base Diam., are the same Rim Diam. is the difference. 40-90 rim is 0.546, 38-90 rim is 0.558. is that enough to be deal killer? Also the 38-90 has a slight shoulder Dia. of 0.47, but that will fire form out first time....

We still talking about the 38-90-217 Winchester Express? LOL Thanks for all the info. Northern tool sells a cheap metal lathe for bout $200, hell if that's all it would take it might be worth it..., lmao

I can't think of what else Paco was thinking..., EAA has something better, its what I would think is the best deal without a lathe. Must be heavy as hell too...,
http://www.eaacorp.com/parts-more-acces ... serts.html

Check this out is this the answer to the question?

http://www.mcace.com/shotguninserts.htm

Just by chance, does anyone have 38 express / 38-90 brass? Or maybe know where I could get a few? I have this old highwall that shoots it and try to find some in re-loadable shape when ever I get a shot. Its hard to find.

I have a pre WWII Sterling 12ga side by side I would love to do this to. I would think 2 barrel inserts could be made. For weight they would need to be carbon fiber bull barrels the outside machined tight to inside barrel dimension. Wow, if that would work, then you could load one side or both. Am I...