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

This one is pretty darn close to perfect for 480-grainer at 2150 to 2200 fps:



70.0 grains AA-2460s from the 24" Ruger No. 1 >>> 2185 fps MV according to Garmin XERO, at 56*F.
If not mentioned above, latest NEMO trial was at 56*F, yesterday.

It would be nice if the grease groove lined up for 3.340" COL instead of having the case mouth positioned in the middle of the drive band.
3.250" COL does line up nicely, with only a 0.090" greater free-travel of bullet to the rifling.
I must admit that with 3.340" COL and the occasional extra paint blob on that wide nose band's leading edge,
there is occasional resistance to chambering of the round in the Ruger No. 1, requiring a harder push on the lever to close the action.
Maybe a trial with 69.5 grains of AA-2460s and COL of 3.250" would work for NEMO.
478 grains is pretty durn close to 480 grains.
I think that passes for a 480-grainer amongst the Woodleigh HYDRO bullets, blah-blah-blah, heh-heh-heh ...
480 grains of .458-caliber bullet at 2150 to 2200 fps with smokeless sure is more fun to shoot than a 2-bore round ball with a couple of handfuls of BP.
And it was adequate for elephant.