A question I should ask is why so many people favor the 1851 Navy.
I have always preferred the look of the 1862 Police and Sheriff's models in .36 caliber to the Navy models.
I've found the 1862 Police, whether with the 5.5 or 8" barrel balances superbly in my hand and the weight is just right for a "carry" pistol. The 1861 Navy is a fine small gun too, though it doesn't have the same balance.
During the civil war, paper cartridges were used, but the bullet weights ranged from 139 to 155 grains, depending upon who made them. A .36 caliber (.375") lead round ball weighed about 70 grains. If pushed to 1000 fps, that only produces 155 ft-lbs, though I suspect the lightweight ball was moving considerably faster.
If the 139 grain moved at 1000 fps that gives 309 ft-lbs while a 155gr at 850 fps would give 249 ft-lbs. In contrast, the .38 Special 158gr @800 fps produces 225 ft-lbs.
Has anyone chronographed their round ball loads?