This is a .54 cal. and the weight completed with ramrod in is 7lb. 5oz. It handles great and shoots better. I shot it in for windage and each 3 shot group at 25 yards shot a nice little cloverleaf. That was with 50 grains of Schuetzen 3fg and prb with .015 patch. It shot about 2.5" to the left and about 3" low when I first started. I got the windage corrected on the 3rd sight adjustment, but I still have to work on the elevation. I filed a little off the front sight and brought it up to about 1.5 inches low of center at 25 yards, but it got too cold for me to continue that day. Tomorrow I am hoping to continue with the elevation correction. I did take it to a trail walk on Sunday and did ok for it not being sighted in correctly. The shots I missed were all missed low, but I couldn't wait to shoot the course with it. After 52 shots, I had to touch up the flint for the 53 shot. There were no misfires or hangfires in those first 52 shots. Kibler's new Colonial lock is smooth and quick. this was the first time I shot one.