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.

[jerrysimons]

Interesting thread. Thanks I am trying to decide myself between the two rounds. Seriously though why can't they load this stuff at 556 pressure for more velocity?

75gr will buck wind better at distance. Not sure if the little difference in velocity at close ranges is going to matter as long as they both expand at the velocity on impact maybe more penetration but with your number the heavier 75gr still has more energy in both cases.

https://pistol-forum.com/showthread....-really-matter

[Zim]

Have you thought about the new TAP SBR round?

[Eurodriver]

PSA has Gold Dots (64 and 75gr daily deals going on today) for $10/box. For that money I will rock Gold Dots over TAP T2 at $25/20.

[Auto-X Fil]

Hunting what? I certainly wouldn't shoot hogs or whitetail with that load.

[Eurodriver]

Hogs and white tail. Why not? What would you use?

[lunchbox]

Hunting what? I certainly wouldn't shoot hogs or whitetail with that load.

Whitetail don't get nearly as big down south. .223 with good shot placement is more than sufficient. Never used on hog tho.

[jethroUSMC]

Hunting what? I certainly wouldn't shoot hogs or whitetail with that load.

I wouldn't have an issue using these on a hog. I use Hornady 75gr BTHP out of a 16" AR regularly to take feral hog from ~150yds up to smell distance. When I've had exits within that range its golf ball or slightly larger sized exit holes.

[Eurodriver]

Thanks for the replies guys. It seems I can't go wrong with either load for either application, but I will for sure stick with 75gr for the 20" in a hunting role. I know DocGKR likes the 64gr GD but to my knowledge he has not tested (or has not revealed) the 75gr GD. He simply said "Coming soon" on Lightfighter. Almost 2 years ago.

I also agree with the bullets you posted, x-fil.

[elia.jon1]

I know it's old but I want to add.

Usually some form of 75 or 77 otm is what I shoot pigs with, I'm using a 10.3 colt.
I was given two boxes of 75gr gold dot and asked to shoot a trapped pig.

While the first shot was "fatal" and "took the fight out of" a ~150lb boar. It took 6 to actually anchor him. The bullets were passing through and not causing damage.

The hpbt variety of heavy bullets has given me a very different result. I can see them(gold dot 75gr) being better vs intermediate barriers.