Float Pilot
Member
Wow,,, Something it wrong..... Usually black necks means the pressure is low and the gases are not being sealed by case mouth expansion...
1. Did you single load each round or where the other rounds in the magazine while firing?
2. Is your brass all trimmed to the correct and same length?
3. How much neck tension is gripping the bullet sides with your loads?
4. Did you use any crimp of just neck tension?
5. Have you super double-checked to make sure that you do not have something built up (like powder residue or a piece of jacketing) at the far end of your chamber or in the rifling leade?
Around here a head-space check is 10 bucks and 5 minutes.
6. Did you make sure you did not bump your case shoulders too far back? That will make the gun act like it has ahead-spacing problem.
1. Did you single load each round or where the other rounds in the magazine while firing?
2. Is your brass all trimmed to the correct and same length?
3. How much neck tension is gripping the bullet sides with your loads?
4. Did you use any crimp of just neck tension?
5. Have you super double-checked to make sure that you do not have something built up (like powder residue or a piece of jacketing) at the far end of your chamber or in the rifling leade?
Around here a head-space check is 10 bucks and 5 minutes.
6. Did you make sure you did not bump your case shoulders too far back? That will make the gun act like it has ahead-spacing problem.