Best performance in sbrs - Hornady BLACK 5.56x45mm NATO 75 Grain InterLock HD SBR Centerfire Rifle Ammunition

I get much better accuracy with this ammo in my 7.5 and 10.5 inch barrels that with the 55 grain FMJ. I tried some rounds into wet newspaper and it really expands. I'm using this as my go to self defense round from now on. Surprisingly it's no louder in the 7.5 than the 10.5 barrel.