Seating depth
Quote from Reloader on July 29, 2011, 3:36 amIs there any "secret" to getting a consistent seating depth?
Out of 5 rounds loaded, the COL ranges from 1.2558" to 1.2443". If I run the rounds through the seating die again (nothing else on the shellplate), they all are seated a bit deeper, but the range is still about the same.
The shellplate is reasonably tight and I see no movement while loading and my thumb can not push the plate down any more.
When I do a "thumb test", the rounds do not get any smaller, so there is no bullet set-back and even cycling some dummies through my gun produces no measurable set-back.
Thanks.
Is there any "secret" to getting a consistent seating depth?
Out of 5 rounds loaded, the COL ranges from 1.2558" to 1.2443". If I run the rounds through the seating die again (nothing else on the shellplate), they all are seated a bit deeper, but the range is still about the same.
The shellplate is reasonably tight and I see no movement while loading and my thumb can not push the plate down any more.
When I do a "thumb test", the rounds do not get any smaller, so there is no bullet set-back and even cycling some dummies through my gun produces no measurable set-back.
Thanks.
Quote from Reloader on July 29, 2011, 4:56 pmThe variation you are seeing is due to variations in the ogive of the bullet. It helps if you tighten the die lock rings with a fired case up in the size die, and seating a bullet in the case, this helps.
The variation you are seeing is due to variations in the ogive of the bullet. It helps if you tighten the die lock rings with a fired case up in the size die, and seating a bullet in the case, this helps.
Quote from Reloader on July 31, 2011, 3:37 amThanks. I always set the seating depth and lock the ring with a bullet being seating in the die, but I never also had a case in the sizing die.
I also find that the handle with a full shellplate will "bounce" back up and inch or so. I have checked with one case going around and there is no "bounce back," but a shell plate full up to the powder measure/powder funnel with start having this bounce back. I don't see an problem with it, but then I don't remember the press doing this, say, 6 months ago.
Thanks. I always set the seating depth and lock the ring with a bullet being seating in the die, but I never also had a case in the sizing die.
I also find that the handle with a full shellplate will "bounce" back up and inch or so. I have checked with one case going around and there is no "bounce back," but a shell plate full up to the powder measure/powder funnel with start having this bounce back. I don't see an problem with it, but then I don't remember the press doing this, say, 6 months ago.
Quote from Reloader on December 19, 2011, 7:17 amCase length is ABSOLUTLTY CRITICAL, trim cases, note rim thickness also plays a part. KM
Case length is ABSOLUTLTY CRITICAL, trim cases, note rim thickness also plays a part. KM