[Hellgate]

The Ubertis have dovetailed front sights and are easily corrected for windage. Put the barrel in a well padded vise and using a brass drift punch tap the sight over to line it up with where the bullet is hitting. If the gun shoots to the right you tap the sight over to the right. The formula for sight correction is (all units in inches):

correction at the target/distance to target (in inches)=correction of the sight/sight radius

e.g., the gun shoots 2" to the right at 20 yards. Convert to inches. i.e. the gun shoots 2" to the right at (20X36) 720 inches.
2/720=x/sight radius (distance from front sight to rear sight = 9" on my Uberti).
2/720=x/9 Solve for X Sight correction = .025" tapped over to the right.
So smack it over 2-3 hundredths and take it out and shoot it and see if it is on zero. Keep in mind how firmly you grip the gun can make a big difference in point of impact.