It looks to me like what your saying is, no one bullet or caliber combination works well for both hunting and home defense. And I agree and there is no need to try! Develop your hunting loads and put them aside for hunting then develop your home defense loads to keep loaded up at home. Have dedicated mags for each and mark them. I personally would not use any of the AR calibers for home defense, I have hand guns and shot guns for that.
What I’m saying is make sure the bullet is up to the intended purpose. There are plenty of bullets that cross over between hunting and self defense, or hunting and target.
But consider the famous FBI gel test specification. 12-18” of penetration, load ammo and use a bullet that won’t exit a human. Use that ammo on an elk, moose or large hog and you won’t even reach the vitals, but you’re probably fine on antelope and deer.
The Barnes Tac TX 110 grain bullet is possibly the most successfully used hunting bullet for 300 Blackout. It’s not a hunting bullet. Shoot a large bear with it and you’ll have the opportunity to go full on Davy Crockett and fight a bear with your knife. It just doesn’t have the penetration needed by design. Exit wounds on deer are almost a given.
TAC means Tactical. Designed to shoot people through barriers, and not over penetrate on humans. Humans are thin skinned and relatively short distance to the vitals. Honestly much easier to kill than your average 100 pound attack dog or white tail. Add in that most tactical or military rounds aren’t even ment to kill. Only take a man out of the fight, any hit is fine. Humans need to be on some pretty stiff narcotics to run 200 yards after a bullet has passed through both lungs and the heart. Deer seem to do it about 70% of the time. Why do law enforcement handgun bullets need to meet FBI standards, but sniper bullets don’t, mostly Sierra Match Kings.
There are basically 4 types of bullet.
Pointy ones that will pass through just about any material and leave a single caliber hole where ever they go.
Expanding ones that use blunt force double diameter flat surfaces to rip and shred on the way through.
Expanding petal design that open up and cut a triple diameter propeller path.
Fracturing that dump all their energy fast and send shrapnel through tissue.
The game is all about dumped energy causing tissue damage and blood loss. A bullet that passes through completely has left energy on the table. Shooting through fat is different than shooting through a denim jacket.
The 300 Blackout developed a reputation as a poor choice for hunting, when the fact of the matter it was hunters making poor choices. Either in bullet selection or shot placement. This was complicated by the trend of the newest generation of hunter that seem to only be interested in blowing bigger holes from farther distances. It’s the wrong cartridge for that.
Hunting subsonic further complicates the equation. If you can’t or won’t close the distance on your target, can’t hit a quarter at 50 yards, don’t know your games anatomy and can’t or won’t learn to track, maybe consider a CheyTac cartridge.
The 300 H’mr and 7.62x39 really aren’t that much different. If 200 pounds of energy is going to sway your hunting cartridge decisions over bullet choice and shot placement, I don’t think you’ve (people in general, not you specific) taken a critical look the ballistic capability of the available bullets. And really it’s ok to make a cartridge choice based on the tried and true scientific methodology of “I like it better because it has a cool name” as long as you understand its capability and use it within those limits.
Just trying to get people to think before they shoot.