This was just discussed a short time back. There is far less sound reduction between open muzzle and suppressor when using the low velocity ammo.
In fact, the sound reduction isn't worthwhile to suppress low velocity (CCI QUIET) ammo. Use sub-sonic ammo with the muffler and leave the expensive QUIET for the non-suppressor guns.
In fact, the sound reduction isn't worthwhile to suppress low velocity (CCI QUIET) ammo. Use sub-sonic ammo with the muffler and leave the expensive QUIET for the non-suppressor guns.