Haycreek
Member
A pleasant surprise yesterday, my first five shots from 15 yards measured 6/10 of one inch [one hole]. Gun was a S&W model 629, 4 inch barrel. Ammo, 44 mag loaded with 6.0 grains of IMR Trail boss, behind a Speer 240 grain LSWC.
Following that was loads with 6.7 grains and 7.3 grains of the same powder. Groups were almost as good as the first five rounds-- but a little larger. Trail Boss is meant to be used in slower loadings, and it meters good, is fast burning, and fills the case better than other fast powders. Low flash, low recoit. Trail Boss is a keeper.
Following that was loads with 6.7 grains and 7.3 grains of the same powder. Groups were almost as good as the first five rounds-- but a little larger. Trail Boss is meant to be used in slower loadings, and it meters good, is fast burning, and fills the case better than other fast powders. Low flash, low recoit. Trail Boss is a keeper.