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

We'll be getting around to test firing this eventually, with the fancy new ball powders:





2469 fps MV with the 450-gr TSX was done by me with AA-2230 charge 84.0 grains
(at 41*F in 25" Shilen-barreled CZ 550 Magnum)
by moving out to the 4th cannelure and a COL of 3.680".
Not cool.

gunner500 has done this at 3.565" COL, which is very cool:



And Uncle Bob did this at even shorter COL ! Way cool:



But first, this is ready to go for testing of H4895 BASICS:





And then the 3.562" COL with other ball powders that will be hard pressed to beat H335, AA-2230, and AA-2460 ...