10-4 on the under employment, and congrats on the black bears, I've shot a few deer and pigs with my 375's over the years, told me the one gun rep for all of Africa was well founded.
I have a habit of gleaning all I can get from cartridges, don't have any of the fancy testing equipment labs have, but rely on the tried and true casehead expansion, primer pocket tightness, extraction of fired rounds and brass life methods, so far so good, a few examples of different cartridges below.
416 Taylor, 2400 fps with CFE-223 and 400 gr Partitions without heavy powder compression.
400 Whelen, 2255 fps with CFE-223 and 400 gr Woodleigh's without heavy compression.
9.3-62mm, 2400 fps with RL-17 and 320 gr Woodleigh's without heavy compression.
458 WM, an easy 2150 fps with H-335 and 500 gr Partitions without heavy compression. 2150 was all I wanted in the 458, that speed has proven effective for a hundred years in other 458 cal big bores.
As has your 24/2500 fps 300 gr 375 loads, 300 gr Partitions at 2700 fps make the old H&H a true 400 yard hunting rifle
