Almost every outlet like Midway, Natchez, etc. had Hornady 375Ruger brass a few weeks ago, and it sold out in a few hours or less.
I grabbed a box of 50 myself...
My great uncle worked up a load for 300 Savage many moons ago that seemed to work well in most 99s...150gr Sierra SP over IMR3031, tack puncher at 100yrd (watched my father do just that) and deer that look like they were hit by a car when dressed.
His 99 now resides with me...I may carry it...