I bought a Pedersoli Sharps and your book and followed your advise and instructions. Fire lapped the barrel and sent you a chamber slug and ordered a mold and left the bullet weight and design up to you. All I asked for was a bullet to shoot competition with from 100 to 600 yds. I had to learn to cast bullets and reload which I've never done before. I have tried several different black powders and many different charges of powder and it will shoot good groups with just about what ever I try. When I hit on the right charge with one powder it shot 3/4" groups and 1" groups with the other powder. This was at 100yds. with iron sights. I'm new to all this and don't know all the do's and dont's of BPCR. I want to thank you for sharing the knowledge and setting me up with a bullet that fits my rifle. I've heard of people spending 3 or 4 years getting a Sharps rifle tuned in, I've only been to the range twice. Thanks again for a great product.