I just purchased and excellent conditon Model 10 with a 2" bbl. I took it to the range and between 15 to 20 yds. it was shooting about 1 1/2 to 2 inches to the right with 158 gr. lead rounds. Is there any adjustment the factory could due or a gunsmith to correct the point of aim. Thanks
Your question assumes that the gun is the issue; there's not enough evidence as yet to conclude that.
Might be your ammo, might be your technique -- neither of which has been accounted for in needed detail.
But to answer your question(accepting at face value its underlying assumption), yes, there are things the factory or a qualified gunsmith can do.
If the gun is otherwise mechanically sound, they can simply very, very slightly turn the barrel to the right, so that the lead sight when centered in the rear sight well brings the barrel slightly left, presumably correcting point of impact.
Alternately, the can shave a hair off the left side of the rear sight well to achieve the same effect.
This all assumes no mechanical explanation for the accuracy "issue", like timing, alignment, forcing cone cut, leading, etc.
But again, we don't yet know that it's the gun, and an average of 1.75 inches to the right at an average of 17.5 yards is hardly worth the time and money to correct it, in my opinion.