Pretty sure nobody mentioned it, but the one advantage .300BLK has is the pistol powder, which combined with the pistol length gas system, gets the bullet up to speed before hitting the gas block.
If I were to buy a pistol length upper, it would be in .300 solely for that reason. While 5.56 will function with a pistol length gas system, it’s just not as efficient.
Alas, my non-standard itch to scratch is .458 SOCOM (suppressed) because it’s what I would want to have as a people-stopper.
For hunting with an AR platform, It’s a tossup between .308 and 6.5CM. Leaning towards the 6.5 since it seems to be more versatile.
If I were to buy a pistol length upper, it would be in .300 solely for that reason. While 5.56 will function with a pistol length gas system, it’s just not as efficient.
Alas, my non-standard itch to scratch is .458 SOCOM (suppressed) because it’s what I would want to have as a people-stopper.
For hunting with an AR platform, It’s a tossup between .308 and 6.5CM. Leaning towards the 6.5 since it seems to be more versatile.