QL projects 2,637 fps at 47,393 psi with 100% case fill (62.4 grains) under a 168 grain SMK with a 3.33 COAL from a 22-inch barrel. QL projects 2,646 fps at 52,815 psi with 100% case fill (61.1 grains) under a 180 grain SMK with a 3.33 COAL from a 22-inch barrel. N560 might be a better choice.