Thanks, Cayugad. I emailed Interarm, gave them the serial number and ask them what the twist is on this gun. They said it was 48 inch. I have measured it several times with a cleaning rod full of patches and a yardstick and it seems to be a 60 twist. My method isn't totally accurate so maybe I am wrong. I did put a shot into an old oak block from about 50 feet. The 240 gr. conical penetrated just over an inch, the soft lead was over 3/4 inch wide and you could just see the ring of the back of the bullet, the rest was mushroom. I have not tried a patched ball yet, I understand that they load harder. The 240 gr Hornady loads easily so I will probably stick with it if it is accurate. I only shot appx. eight rounds to adjust the sights before black powder season, and did not go. It seemed to do OK at appx. 75 feet on a paper target. I was standing with a rest, so accuracy was more me moving then the gun being tested.