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

Sir Tony,
Asante sana-sana for the flowers, and the old yellow and red box loads you sent for sampling.
Here is some more factory load dissections.
Your 1957 Winchester 500-gr FMJ loads were still up to snuff 64 years after they left the factory.
Recall that they used 67.0 grains of a short-grained extruded powder.
Current propellants:



little changed from 1957, see below.

Yesterday I got to the range one hour before closing and set chronograph at 5 yards and targets at 50 yards.
Had to bore sight the little 2.5x20mm Leupold in QRW rings on a Near Mfg. Picatinny with 25-MOA tilt.
I swift-kicked my own arse for wasting 2 shots into the dirt and finally getting onto paper with the third shot.
It shot high with the 25 MOA tilt. Plenty of adjustment in the little scope though.
I got off 20 shots by closing time.
Wind was a bit gusty, 11 mph or more.
Throwing out the first two shots into the dirt, I got an average for 8 hots with the "400"-gr TB Bear Claw,
closer to a 390-grainer !