75gr Gold Dot out of SBR and hunting use

[Eurodriver]

I searched. There's one decent thread by WS6 about this load, but not much else.

The 75gr GD seems to have a velocity of ~2100 FPS out of a 10.5", with the 64gr being a bit faster. I'm wondering which would be the better choice between those two for an SBR? Is the 75gr too slow to expand at anything but in your face distances?

On that same note, if one were to also use this bullet for hunting (to consolidate ammo) if the 75gr or 64gr would be better or if a different bullet entirely would be substantially better.

ETA: I plugged some numbers in using what I've found on the internet (oh boy) Thanks to WS6 for doing lots of testing on GDHP loads.

75gr BC 0.4
Velocity out of 20" 2650 FPS
Velocity out of 10.5" 2100 FPS

64gr BC 0.277
Velocity out of 20" 2800 FPS
Velocity out of 10.5" 2500 FPS

For the SBR at 300 yards (long enough to get data, not too far to be meaningless):
64gr: 19.5" of drop; 1657fps; 390 ft-lbs
75gr: 26.1" of drop; 1573fps; 412 ft-lbs

For the 20" at 300 yards:
64gr: 14.3" of drop; 1893fps; 509 ft-lbs
75gr: 14.2" of drop; 2036fps; 690 ft-lbs

It seems as if the 75gr is a better SPR/hunting bullet, whereas the 64gr is better suited to SBR purposes due to the higher velocity (and likelihood to expand) at distance?

It's also remarkable that at 300 yards a 75gr GD at 2036 fps has more energy than a Barnes 110gr TAC-TX bullet fired from a 300BLK.