Suppressors are generally only effective suppressing sub-sonic ammo, regardless of caliber, anyway. Any ammo which has a velocity above 1,125 fps (at 68F, and at Sea Level; it varies by altitude, air density and several other factors) is considered supersonic. A suppressor won't suppress any of the supersonic 'crack' heard as the projectile accelerates above the sound barrier because this occurs outside the barrel.
Just thought I'd pass this bit of trivia along for background. Though slower and less powerful, sub-sonic ammo is about 2x the price of regular ammo...mainly just because they can.
Just thought I'd pass this bit of trivia along for background. Though slower and less powerful, sub-sonic ammo is about 2x the price of regular ammo...mainly just because they can.