is there any way to tighten the spring tension on an uberti 1860 colt revolver? I have only had this to the range 2 times so far, (new gun) I have yet to shoot a full 6 shots without at least one cap not going off. I took it out today with a new set of treso nipples on it, no. 11 caps seemed to go all the way on. on the first cyl. I had one cap not go off. things went steadily down hill from there, on the 3rd. cyl. I had 4 caps not go off, they did go off the second time which tells me maybe fowling is holding the caps up a little. comparing the hammer tension to my 58 uberti, the 58 has a noticable stiffer tension on the hammer. I have shot the 58 quite a bit and I can't remember a missfire, well, except once when I forgot to put powder in one hole. think maybe a new main spring will take care of this? flinch