Quote:
Originally Posted by elkhunter11
If you load several powders to the same pressure, you will not get the same velocity with each powder. Look at any manual, and the max velocity will usually vary 10% or more from powder to powder at similar pressure.
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Physics .. equal pressure and equal resistance results in equal velocity ..Various charge weights, various burn rates, various load densities equals various pressures, which equals various velocities. Have you actually tried loading different powders in the same case, for the same firearm with the same resistance and realized equal pressures /velocities ?