Ditto what Bullitt says re:Accuracy.
Mine "strung" badly. (up and down)
I had tweaked trigger to 3.5lbs, and lapped the slide/frame, and later "peened" them to tighten it up some more.
Tried various Match grade factory and reloaded ammo. Different bushing, fitted a Kings NM S/S bushing...................
No Joy !!!
I asked Dave Williams with cthe ustom shop about it. He said it was "Nominal" accuracy for a OTC gun/barrel (over the counter- I won it in a league competition).
Ditto re: both ramped and unramped barrels.
Both are equally reliable and accurate (or inaccurate).
The reliability issue in feeding is a function of the magazines. With good mags, all mine worked well.