Recycled bullet
New member
Can you describe your loading equipment dies and press and processes? What head stamp of brass are you using? Mixed brass or selected?
What are you using to expand the brass to accept the bullets?
From my personal experience for example CBC brass will squeeze the bullets and make them undersize, using the Lee 9mm factory crimp die can incorrectly apply the crimp with lead bullets leading to undersized, seating and crimping in the same step with flared casings and lead bullets will scrape the bullets and lead to undersize. Those are three examples off the top of my head where I know I have had issues with components or assembly processes leading to poor accuracy, barrel leading, and keyhole bullets on target.
Maybe pull a bullet and check for coating damage or bullet diameter change?
What are you using to expand the brass to accept the bullets?
From my personal experience for example CBC brass will squeeze the bullets and make them undersize, using the Lee 9mm factory crimp die can incorrectly apply the crimp with lead bullets leading to undersized, seating and crimping in the same step with flared casings and lead bullets will scrape the bullets and lead to undersize. Those are three examples off the top of my head where I know I have had issues with components or assembly processes leading to poor accuracy, barrel leading, and keyhole bullets on target.
Maybe pull a bullet and check for coating damage or bullet diameter change?