Berry 458 SOCOM vs. 45/70 bullets

[JFB]

I got some of the Berry 45/70 to try some LOW power loads using trailboss for my M77 in 458WM.
after I was happy with the results, I loaded a small batch today to found out this will NOT feed from the magazine!

I'm asking if anyone has tried the Berry 458 SOCOM profile and if it works in a bolt rifle.

AND if anyone has a few I could try.