Peterson 280AI new brass length

I came across this too. Looked for the shortest, and cut 10 to that length. I ran the test on 50 pieces of brass. Then cut the necks to .013" thickness.
 
Kind of to fit chamber, but yes and no. Trim all to the same length. Neck lengths determine how long the bullet stays in contract with the brass after ignition. Which effects muzzle velocity and accuracies.
 

Recent Posts

Top