Looking at a Pedersolli rolling block muzzy. looked at stats on this particular rifle, 28 inch barrel, 50 cal 1-24 twist, 209 primer, found a video of breechplug being pulled from this gun, certainly looks like it would be compatible with Blackhorn. have found very little online about this gun, (including this website). Any input from you guys would be helpful. This rifle is from a local auction site and is looking like it will sell for an attractive price. Appears to have been shot very few times. A couple minor nicks in the walnut, brass and blued steel are perfect.