Originally Posted by
super_hunt54
Only time a 30" barrel on a BP rifle would help at all would be with an ungodly powder load that I wouldn't want to be on the butt end of! 26" is more than sufficient for a magnum charge amount.
One of my favorite rifles is a 20" 54cal carbine. Using 120gr by volume of BH209 i can get a 300gr bullet out the muzzle at 1900fps+. A 385gr is cruising along at around 1830-1850fps.
Plus its very very accurate with those loads. My Pacnor 45 is the only one i own that actually utilizes a 27" barrel. I burn some slower powders in that one.