Oops. That was a .575 minnie ball. I was using FFFg Triple 7. Next time out I will start increasing my load and see if my groups will improve. I am going to cut some trees down so I can do a full 100 yards. I need to pile some more dirt up on my backstop also. I didn't realize how much that .58 with the minnies would kick. Almost felt like I had my 30-06 in my hands. This thing will easily take anything that walks down here in northern Florida. How much does the type of lube used affect the accuracy on minnie balls?