Are the Lyman M Dies better for cast bullets? I have read they are great for such bullets, but I always like to hear real world experience from other folks.
Using my current expanding die, it appears that the bullet doesn't always seat straight due to the round belling on the case. As the bullet is seated it becomes undersized and un-round by the time it reaches seating depth. I have pulled several bullets from un-crimped cases to verify that a sized, lubed and round .452 bullet becomes a swaggered down and un-round .450/.451 bullet. Also noted from Lyman, the M die's plug works deeper in the case than other dies which looks to be possibly more of the issue than the round belling. I had set my current expanding die to flare the case enough to just have the base a bullet fit in the case and did test with seating depth. I found that the further I seated the softer bullets the worse things became. I see this more in the 45 auto as I cast my bullets softer at about 11-13 bhn. Having a bullet undersized is a huge problem for accuracy and leading which are actually very much interrelated.
Any opinions on the Lyman M Dies?
Using my current expanding die, it appears that the bullet doesn't always seat straight due to the round belling on the case. As the bullet is seated it becomes undersized and un-round by the time it reaches seating depth. I have pulled several bullets from un-crimped cases to verify that a sized, lubed and round .452 bullet becomes a swaggered down and un-round .450/.451 bullet. Also noted from Lyman, the M die's plug works deeper in the case than other dies which looks to be possibly more of the issue than the round belling. I had set my current expanding die to flare the case enough to just have the base a bullet fit in the case and did test with seating depth. I found that the further I seated the softer bullets the worse things became. I see this more in the 45 auto as I cast my bullets softer at about 11-13 bhn. Having a bullet undersized is a huge problem for accuracy and leading which are actually very much interrelated.
Any opinions on the Lyman M Dies?