turtle71

Raceman,

First off the start grains is probably about 10% below max grains. The velocity is normally measured using max grains. Don' t just try loading using max grains or adding 10% to the start grains though. Work up gradually checking for signs of pressure as you go.

Second most velocities are based on a single shot with 24" barrel. If you have a semi auto or a shorter barrel that will loose you some speed.