Thanks for the information guys. I have a couple 45-70’s and a 45-90.
I was pretty sure I read some things such as, “The 458 has too long a throat for cast bullets.”
Then Ken Waters article didn’t show much hope.
If I re-barrel a rifle to 458, I’ll likely shoot only cast bullets in it. The 45-90 and one 45-70 has only had cast bullets down the tube. I have shot some jacketed in one of my 45-70’s (a Marlin). Because Marlins have a limited length that doesn’t allow cast bullets that I like, unless the bullet is deeply seated.
I’d think a ~ 400 grain blunt/flat nose cast bullet traveling in the neighborhood of 1,800 fps should kill whatever I’d likely be shooting.
The market is flooded with 7mm RM rifles and they can be had pretty cheap (I like the 7mm RM a lot by the way.)
Re-barreling to 458 would likely increase the value of the rifle about as much as the cost - maybe.
Last edited by Bugger; 05/16/22.
