Pietta 1860 Army Revolver - rifling?

[dcriner]

I just bought a Pietta replica 1860 Army, .44 revolver. The rifling is visible, but quite shallow, almost like it was scored with a diamond. And, there are rather numerous groves. Is this correct?

This is my first Pietta. Finish and overall appearance seem fine. I'm sure it will be a good shooter. The fit is below the precision of my Uberti revolvers.

 

[nkbj]

Out of curiosity, could you tell what the bore and groove diameters are?

 

[dcriner]

OK, the rifling is fine. When I first examined the bore, the lighting must have fooled me. Sorry.

 

[Gatofeo]

Piettas almost always have shallower rifling than Ubertis.
Although, I have an Uberti-made 1858 Remington in .36 caliber with modern adjustable sights, proofed in 1973. I had high hopes for this revolver, with its fully adjustable sights and .36 caliber, but the rifling is so shallow that it delivers 4 or 5-inch groups at 25 yards from a benchrest. That's about as good as it gets.
Conversely, my 10-year-old Uberti Remington .44 with fixed sights will put all six balls (or Lee conical bullets) into a silver dollar at 25 yards, from a benchrest.
Its rifling is noticeably deeper than the .36, and the Pietta .44s that I own.
Still, a Pietta can be accurate even with its slightly shallower rifling. I own both makes, and loaded carefully and with the proper components they'll shoot as tightly as most modern guns.