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

Sir Larry,
Heh-heh, the two boo-boo bullets in the batch of CEB FNs was explained by Sam at B&M.
The stub ends of the brass rods.
I am eternally grateful to Doc M for getting CEB to make that 400-gr brass FN bullet.
What a job !,
Rushed through so fast that a couple of bullet stubs were not sorted out, in the sorting, heh-heh.
Machining was great: 400.08 grains mean for 10 bullets, all within 399.8 to 400.2 grains.
That much variation could come from the metallurgy, eh ?

Will load some more .458 B&M+ loads with those, fully interchangeable with .458 WM+ loads,
as long as COL is 0.260" difference.



400-gr FN:
2.990" COL in the .458 B&M+ for magazine feeding = 3.250" COL in the .458 WM+
404-gr SH:
3.220" COL in the .458 B&M+ for single loading = 3.480" COL in the .458 WM+

So here is data for the .458 B&M+ with 16.875" barrel, using TAC, that can be used in the .458 WM+:





So, I am going to see if the short-barreled .458 B&M+ can get to 2300 fps with the 400-gr FN
which might be close to 2500 fps in the 24"-barreled .458 WM+, even if it takes 3.350" COL to get there, heh-heh.
I am still waiting for that Pac-Nor 1:10" twist barrel to turn into a 20" to 24" .458 WM+ Mauser, New Fugly.
No, I have not gone totally off the deep end on the short-barrels,
still waffling.