Home Forums Hunting & Shooting Express Rifles and Big Bores Only The great 458 Winchester. Everyone should own one at least once

The short COL .458 B&M with short throat, may be unleashed in a 3.4" magazine length and a .458 WM throat.



Longer COLs can be worked through the magazine as well as single loaded like with a SAAMI .458 WM.



The North Fork 450-gr SP works in either .458 B&M or .458 B&M+.



The TSX bullets of 450-gr and 500-gr weight have ogives too long to fit inside of 3.000" COL.
The 350-gr TSX works well in the .458 B&M due to its lesser nose/ogive projection.



I do not have exact specs on the .458 B&M. They were proprietary secrets last time I checked.
But this drawing came out close to the actual measured brass gross H20,
for R-P and Quality Cartridge brass averaging about 2.240" in length.
The R-P .458 WM brass lot measured in the post preceding this about identical,
and a fraction of a grain bigger if allowed to grow to 2.500",
always safe in a SAAMI .458 WM.
Both are about 95 grains H20 gross, once-fired and not resized.





BTW,
Old Fugly the .458 Lott has her new safety, still needs a rustoleum camo job, a flashlight hanger Picatinny,
and some fluorescent white tape on the barrel and scope for night sight use.