I have a second gen Colt 1860 army that shot way high. Had a smith install a nice and tall new front sight that I call the shark fin! Shoots to point of aim now. As far as reliabilty goes, the Army has been trouble free but I have a Colt second gen 1861 Navy that basicly fell apart before I got two cylinders full out of it. Sent it back to Colt with a note stateing that this revolver was to be shot and not just looked at. It's fine after Colt sent it back but the pity of it is that it shot to point of aim before the new hammer (one of many new parts) was installed, now it's the normal way high.

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Stay safe people!