I have two guns in my home that I very rarely shoot, one is a smooth bore trade gun flinter and the other 50 Hawken with a 1:48. The trade gun is used for re-enacting, the Hawken can't do better then a 12 inch group at 100 yards no matter what I put down the barrel. My old .45 Kentucky (1:66) can still hold 3 inches with primitive sights. I will never own another 1:48 again, either fast or slow, nothing in between.
MAC trained killer