Originally Posted by Dustylongshot
How about a .411 KDF. Plenty .458 Win Mag cases about, just neck down and go shoot.

That's my thoughts too,

I have a 400 Whelen which shoots fine with 0 headspaceing problems,,, but it'll only take a hint of a problem and it's sent off to be KDF'd !

400gr @ 2400fps as opposed to 2150fps,,

I tend to use more than enough gun