OK, so not sure why everyone is willing to shoot an AR 5.56 pistol for home defense, but not a .308
The 5.56 has a db level reading of 158.9 db and the 762x51 (308) has a db level reading of 159.0 db. Almost exact same db level from both rounds.
Besides, I think the .308 pistol comes with a blast forwarding device. That makes the loud noise throw more forward than to the side like on tradition bird cage flash hiders or brakes. I have attached a chart of db levels of different rounds. Hope it helps.
Thanks for the chart, the loudest gun I fired without muffs on was a .45 auto, to be honest, the worst gun to fire without muffs is a .22lr, you don’t think it’s loud, pretty much it really isn’t, but the repetitive shooting causes the damage, I know from experience, I never used muffs for a .22, now my left ear has tinuitis. In a self defense situation, I think adrenaline will take over and you may not notice the noise from shooting inside, just my thoughts.