oberkommando
New member
Have three blackhawks that seem to have short bores in the cylinder, can these be hand reamed deeper to accept a bullet that is longer like the Hornady 300gr xtp they fit fine in Redhawks but protrude about a rim thickness out of the cylinder on my blackhawks. Bullets are seated out on the second cannelure (cannelure clostest to base)thought about using the first cannelure but wasnt sure about the pressure. Am using about 21.3grains win 296 velocity around 1300fps.