02-15-2017, 06:59 PM
explorecaves Wrote:That's a significant jump in dB reduction from the 5 to 7 inch version (every 10 dB is exponentially louder).... I may have to get a 7 inch....The 7" is unbelievably quiet on a bolt gun.
From what Bill A. and Ray said, the 5" doesn't have as much supersonic venting noise from the carrier with the Ultra 5, whereas the efficiency in noise reduction of the 7 works against you with the AR15 carrier.
NRA Basic, Pistol, Rifle, Shotgun, RSO
CCW, CQM, DM, Long Range Rifle Instructor
6.5 Grendel Reloading Handbooks & chamber brushes can be found here:
www.AR15buildbox.com
CCW, CQM, DM, Long Range Rifle Instructor
6.5 Grendel Reloading Handbooks & chamber brushes can be found here:
www.AR15buildbox.com