Barrel length affects mechanical stiffness for a given diameter. The shorter the barrel, the stiffer it is.
Perhaps more importantly ,shortening a barrel may put the bullet release point at the top or bottom of that rifle/ load combination's sine vibration wave during firing. In other words, putting it in an accuracy node whereas it was not before when the barrel was full length.
Centerfire handloaders do it by doing velocity ladder tests to get into accuracy nodes. One way to do it with factory ammo is to either try different loads or chop the barrel to get a different exit point along the barrel's length.
In your case Danny- it sure looks like it worked!
Last edited by jk16; 09/20/21.
