edggy:
I'm not Jim, and I don't pretend to be...
But anyway, back in the 1940's and 50's before the reproduction cap & ball revolvers came along all we had to shoot were the original 19th century guns...
And shoot them we did.
In those days one could buy an original 1849 Pocket model, or 1851 Navy and 1860 Army, as well as a "New Model" Remington for about what a top of the line replica costs to day. Those that were in good mechanical shape and had clean, sharp bores and chambers - but little finish - made good and affordable shooters. In my experience, the bore/chamber dimensions were held better (some if not many reproductions have chambers that are smaller then the bore) and more attention was paid to timing the lockwork. On Colt's for example the hammer would come all of the way back to the backstrap before the trigger engaged the full-cock notch, and that's important because it positions the rear sight on the hammer nose lower so the revolver didn't shoot so high above the point of aim.
In fairness to the current makers, they had to go through a learning curve and each year the best lines seem to improve. The quality gap - if there is one - is getting smaller, and the steel they use is better that that of the middle 1800's. Can't say that about the grade of walnut they use for stocks though...
I don't see the replicas as "novelties or oddballs" but rather a wonderful addition to one's shooting experience. I would warn those that are now converting these cap & ball guns to modern metalic cartridge that the guns themselves are proofed for black, not nitro (smokeless) powder,
and are intended to be used with black powder only. Yes, in either cap & ball or cartridge versions they can be used as a personal defense weapon, but they are far from my first choice for this purpose.