Ballistic performance depends on an incredibly high amount of factors from the gun, whether it’s a bolt action rifle or a semi-auto rifle like the AR-10 platform, and barrel length; a short barrel will cause the bullet to react differently than a long barrel, plus all the environmental factors and the ammo.
This is why results vary considerably even amongst the same caliber bullets, making comparing different calibers much more difficult.
Read more about 8.6 Blackout Ballistics For Major Ammo Manufacturers here: https://ammo.com/ballistics/8.6-blackout-ballistics