jfh
Member.
Nate1778: re "...with the sizing die setting the primer depth...."
Maybe that is not what you meant to say--but the sizing die does NOT set the primer depth. Setting the primer depth is a completely independent operation, once the turrets and dies are set up.
I set up the turret/die/shellplate by building numerous dummy rounds--no primer or powder, with sized case and bullet--Then, I fine-tuned the primer depth adjustment. Then I changed turrets / die-caliber set, and confirmed the similar "pressure" settings by die tweaking--and even switched back and forth until both die sets produced satisfactory dummy ammo. Then I set the primer depth adjustment with the 'first' turret / die set.
Then, with the 2nd / new die set in place, I checked for primer seating depth. At least with the various handgun calibers, generally no primer seating depth adjustment is necessary.
At any rate, do not rely on the primer adjustment to set the LOA, so to speak. That is, I suspect, the end result of using the primer anvil setup instead of the die setup for your 'benchmark.'
About 9mm--from what I remember, your observations are true. And, a decent benchtop or frame boltdown is a must--otherwise, there can be 'misinterpretation' the top of the stroke max point as the bench flexes. Personally, my benchtop is a double-layer / laminated MDO--it's nominally 1.5" thick. The frame is only a standard cabinetry base cabinet--but that is locked into place at the wall and by vertical stringers from the shelf storage above it. It's stiff enough to allow the benchtop to have a 6" extension (e.g.,, it is 30" deep) so that presses have knee space under them, and easy access for mounting. No flex problems with any of the presses--but I do not reload / resize big rifle cartridges, either.
FWIW.
Jim H.
Maybe that is not what you meant to say--but the sizing die does NOT set the primer depth. Setting the primer depth is a completely independent operation, once the turrets and dies are set up.
I set up the turret/die/shellplate by building numerous dummy rounds--no primer or powder, with sized case and bullet--Then, I fine-tuned the primer depth adjustment. Then I changed turrets / die-caliber set, and confirmed the similar "pressure" settings by die tweaking--and even switched back and forth until both die sets produced satisfactory dummy ammo. Then I set the primer depth adjustment with the 'first' turret / die set.
Then, with the 2nd / new die set in place, I checked for primer seating depth. At least with the various handgun calibers, generally no primer seating depth adjustment is necessary.
At any rate, do not rely on the primer adjustment to set the LOA, so to speak. That is, I suspect, the end result of using the primer anvil setup instead of the die setup for your 'benchmark.'
About 9mm--from what I remember, your observations are true. And, a decent benchtop or frame boltdown is a must--otherwise, there can be 'misinterpretation' the top of the stroke max point as the bench flexes. Personally, my benchtop is a double-layer / laminated MDO--it's nominally 1.5" thick. The frame is only a standard cabinetry base cabinet--but that is locked into place at the wall and by vertical stringers from the shelf storage above it. It's stiff enough to allow the benchtop to have a 6" extension (e.g.,, it is 30" deep) so that presses have knee space under them, and easy access for mounting. No flex problems with any of the presses--but I do not reload / resize big rifle cartridges, either.
FWIW.
Jim H.
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