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Old August 7, 2020, 05:08 PM   #17
hounddawg
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Join Date: March 1, 2009
Posts: 4,232
Quote:
Don , simplest answer is you never work to the lands only away Because seating closer to the lands raises start pressure. Meaning if you already have an established load that is close to max pressure and you are .060 off the lands . If you start adjusting your seating depth closer and closer to the lands , start pressures will rise higher and higher the closer you get possibly putting you over maximum allowable pressure since you were already close to max at .060 off the lands .
Berger says just the opposite. They say seating the bullet farther out increases case volume

from page 149 https://www.bergerbullets.com/wp-con...13/03/COAL.pdf

Quote:
Figure 1: When the bullet is seated farther out of the case, there
is more volume available for powder. This enables the cartridge
to generate higher muzzle velocity with the same pressure.
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