I was quoting "factory" ballistics - to the extent they exist for this round.Redleg,
The factory .458 Socom ammo my son uses runs over 2000 fps for 300 grain bullets and respectable velocities for the heavier bullets. As you know, there is ammo and then there is other ammo. Though he does hand load some calibers, he has used only factory ammo in the .458 Socom.
Additionally, there is a lot of factory .45-70 ammo faster than the old original stuff. In my 1886, the Hornady 325 grain stuff clocked in above 2000 fps. I guess when dealing with cartridges like the .45-70, I should be more specific, such as the 2000+ fps 400 grain Punch and North Fork stuff our 1886 .45-70 shot through ele heads and the daylight holes in the 5/8 inch steel plate made by the .45-70 Punch bullets at a range of 50 yards.
I will try to be more specific in the future.
PS I still prefer traditional rifle designs to carry in the field. 2019 Pronghorn in Texas Panhandle with m70.
All of that said.. I own a .458 SOCOM AR (among several others).. for hunting purposes, I think it is very linear.. but.. it does fill one particular role quite well (IMO)..
For hog hunting at ranges of 150 yards or less.. its an absolute hammer.. not only on big boars.. but on sounders...
I toyed with the idea of 458SOCOM for a subsonic bolt action for use in pest animal control (non-dangerous game). While the design concept was sound, the cartridge developers made a huge error in not going down the SAAMI acceptance path until it was too late. As a consequence there is no universal specification for brass, chamber nor lab tested load data. Most of the chamber reamers, barrels and brass that are available don't match the original design spec. By the time the developers tried to pursue SAAMI accreditation, there were too many variations in circulation and the whole thing failed to progress. In a bolt action you could treat it as a one-off wildcat with a degree of success, in an auto there's too much to go wrong.
Well Ray I guess the only way is to test it! Anyone here willing to be a test dummy?Ive seen a bison shot with the Socum and a bull elk with the 50, the bison went 2 miles fortunatly in snow, and the elk was lost only to be found 4 days later by accident, both were lung/heart shots..Made up my mind based on two kills, and Im good withthat..