Primer/Case Alignment Off
Quote from mikul on May 13, 2024, 10:24 pmPrimers are failing to insert into brass about half the time. The resolution is to slightly push the case toward the center of the turret. The case must be tilted, but the plate is tightened as far as can be tolerated: just before it get difficult to turn. It's about 1/16th of a turn from not turning at all. Another option is the press/plate alignment so I've used the alignment tool which made no difference. I've even swapped the sizing die.
I'm suspicious that the case feeder is at fault. It seems that the piston pushes the case into position on the way up and taps it again on the way down. That second tap appears to be tapping it slightly out of position. Moving the arm of the press very slowly on the downstroke offers a huge improvement at the cost of time. Then again, I could be hallucinating this.
Any suggestions?
Primers are failing to insert into brass about half the time. The resolution is to slightly push the case toward the center of the turret. The case must be tilted, but the plate is tightened as far as can be tolerated: just before it get difficult to turn. It's about 1/16th of a turn from not turning at all. Another option is the press/plate alignment so I've used the alignment tool which made no difference. I've even swapped the sizing die.
I'm suspicious that the case feeder is at fault. It seems that the piston pushes the case into position on the way up and taps it again on the way down. That second tap appears to be tapping it slightly out of position. Moving the arm of the press very slowly on the downstroke offers a huge improvement at the cost of time. Then again, I could be hallucinating this.
Any suggestions?
Quote from mikul on May 14, 2024, 2:24 amIt's fixed, but I'm not entirely sure why.
Out of frustration, I pulled all of the dies and shellplate off and reset them. This includes polishing and greasing the shellplate pivot bolt. The only things that looked abnormal are:
- The Lee Factory Crimp Die had a good amount of crud inside above the bearing surface. It doesn't seem like that should matter, but there was a teaspoon of stuff in there.
- I THINK the shellplate is a hair tighter, but it's such a difficult thing to quantify
It's fixed, but I'm not entirely sure why.
Out of frustration, I pulled all of the dies and shellplate off and reset them. This includes polishing and greasing the shellplate pivot bolt. The only things that looked abnormal are:
- The Lee Factory Crimp Die had a good amount of crud inside above the bearing surface. It doesn't seem like that should matter, but there was a teaspoon of stuff in there.
- I THINK the shellplate is a hair tighter, but it's such a difficult thing to quantify