07-31-2020, 12:14 AM
As a followup, I calculated the 6 Arc lost case volume due to seating a bullet from 2.245 down to 2.200 (the Hornady recommendation), a depth loss of 0.045".
Using the Saami drawing and a nominal 0.015" wall thickness, I calculate you lose 1.496 grs (of water) case capacity. out of 34.5 total, that's a 4.3% loss of your volume to the deeper seating. 'Course some of that 34.5 is also lost to the bullet's intrusion down into/below the neck.
I hate to lose that much, speaking for me.
Using the Saami drawing and a nominal 0.015" wall thickness, I calculate you lose 1.496 grs (of water) case capacity. out of 34.5 total, that's a 4.3% loss of your volume to the deeper seating. 'Course some of that 34.5 is also lost to the bullet's intrusion down into/below the neck.
I hate to lose that much, speaking for me.