45-70 based Wildcats

338 Ruger Compact Magnum
338-350 Remingon
338-300 WSM
338 Federal
338-284

Starting from a parent case of the 284, 308 or WSM should give you about the same thing.

Modern case and pressures vs 46k psi of the 338 Marlin.

What you plan on using for an action?
 
338 Ruger Compact Magnum
338-350 Remingon
338-300 WSM
338 Federal
338-284

Starting from a parent case of the 284, 308 or WSM should give you about the same thing.

Modern case and pressures vs 46k psi of the 338 Marlin.

What you plan on using for an action?
I am looking to base it off the 45-70 cartridge in a Winchester 1886
 
I am looking to base it off the 45-70 cartridge in a Winchester 1886
I have an 1886, 1888 build date.

Lever feed and not 45-70 that I can find for a 1886 is the 33 Winchester, 348 Winchester and 416 Barns

That said. Anything can be designed. How does a 358/45-70 sound to you. :)

Pick a flat nose or lever safe bullet and I will look at some things.
 
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