Resource icon

Effects of Sound Suppressors on Muzzle Velocity, Bullet Yaw, and Drag 2018-04-24

No permission to download
The big assumption is that every suppressor tested is concentric with the rifle's bore. That is a big assumption. A few thousandths off will skew the group size/impact zone, and thus the results.
I have worked with Dr. Michael Courtney of MIT on a couple of ballistics projects when he was teaching at the Air Force Academy. I believe that Amy and Elja are his wife and daughter. They do ballistics consulting work from Baton Rouge. He extended Don Miller's twist rule to cover tipped rifle bullets. His suppressor findings seem reasonable to me.

Jim Boatright