Nice shot.
The .300 RSAUM and 7mm RSAUM are my favorites hunting cartridges. I also have three rifles in the .300 . My handloads make them a handful to shoot even in a rifle. I can't imagine them coming out of a pistol like that. (180 grn Nosler ballistic tip over 62.7 grn. IMR 4350 @ 3000 fps).
With a decent brake recoil is not bad at all.
With a great brake, it becomes even more tame to shoot.
Velocity in a SP will be about 300 fps slower than the same chambering with typical rifle length of 24-26 inches
