Do you have the same problem with factory loads? If so, I would focus on the gun. If factory loads work well, it’s more likely something in your loading technique that’s causing the problem.
-cases too short and they’re going far enough into the chamber to keep the firing pin from reaching the primers. Were they trimmed?
-maybe having the seating die turned down far enough to slightly crimp the case mouths and again keeping the firing pin from reaching the primers.
-it could be that you have expanded or flared the case mouths too much and the flare is preventing the cases from fully chambering.
-some primers seated too deeply. Hold a straight edge across the case head so you have light reflecting off the primers to see if the primers look like they’re seated uniformly.
Last edited by navlav8r; 03/22/24.
