Wow ! You are in .416 WBY territory there.
Nice work.

Alliant Power Pro VARMINT is a great one: grin

3.275" COL with 500-grain TBSS in a 24" barrel, .458 WinMag:
77.1 grains >>> 2213 fps at no more than 60,000 psi
(published Federal Premium data)

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.