OK, so the fancy bullets do not expand reliably below 1600 fps.
I did say pick your 400-grain poison as needed for the job at hand.
Remember Elmer Keith recommended a .45-70 lever action load with 400-gr FN cast lead at 1800 fps
for timber hunting of elk and such.
The TBPI of a 400-gr Lyman #457643 FN plain base FN at 1800 fps = 1.068 H&H units <<< 2670 pounds.
With a BC of whatever (G1 = 0.280 as claimed by Lyman), it would surely be able to handle something
like this bowhunted elk, arrowed by Sir Jerry's pal:

[Linked Image]

A hard cast lead FN of only 255 grains/.452-cal and 835 fps from a .45 LC is quite the penetrator.
Elmer's load will get the job done.
No expansion needed with a hardcast FN.


Ron aka "Rip" for Riflecrank Internationale Permanente
NRA Life Benefactor and Beneficiary
.458 Winchester Magnum, Magnanimous in Victory
THE WALKING DEAD does so remind me of Democrap voters. Donkeypox.