I've had good success with 6 grs of Trail Boss in .45 LC and 250 gr bullets.
I don't like it in .38 Spl. or 44-40 (that is to say, my guns don't like it).
I recently loaded 4.7 grs TB in some Dominion .455 brass with a 230 gr bullet. This puts the base of the bullet in contact with the powder charge. A full 5 grs would give slight compression, but I'll try that with solid head, cut down .45 LC Brass.
TB
I don't like it in .38 Spl. or 44-40 (that is to say, my guns don't like it).
I recently loaded 4.7 grs TB in some Dominion .455 brass with a 230 gr bullet. This puts the base of the bullet in contact with the powder charge. A full 5 grs would give slight compression, but I'll try that with solid head, cut down .45 LC Brass.
TB