03-30-2020, 03:26 PM
Bullet construction also has an effect on optimal bullet jump. Monolithic bullet often do best with larger jumps than lead-cored ones. Barnes Bullets states: "When loading a Barnes TSX, Tipped TSX or LRX bullet, your rifle may prefer a bullet jump of anywhere between (a minimum of) .050 up to .250 or more."
https://www.barnesbullets.com/load-data/
A NDIA report from a number of years ago suggested that part of the issue is the force required for initial engraving of the rifling, when the bullet can still tip slightly off-axis. It is possible that the compound throat may have different engraving properties than a standard 1.5 degree one, though.
https://www.barnesbullets.com/load-data/
A NDIA report from a number of years ago suggested that part of the issue is the force required for initial engraving of the rifling, when the bullet can still tip slightly off-axis. It is possible that the compound throat may have different engraving properties than a standard 1.5 degree one, though.