Extreme Ruger

Should I replace the rear sight on my revolver?

I just sighted in my Ruger GP-100 at an indoor range, and it kept shooting to the left so after turning the adjustment screw and checking it several times, the rear sight blade is way to the right and you can see the adjustment screw backing out. Could the rear sight be that out of specs. from the factory, or could there be some other problem? It’s sighted in now but I don’t like how far the rear sight blade is off to the right. Have any of you ever seen a rear sight so out of whack on a handgun before? Should I replace the rear sight? I have used the stock factory sight on the front, and also a Hi-Viz sight on the front. With either of those two front sights, I still have to adjust the rear blade to the extreme right to pull the point of impact to the right. I was considering getting a Bowen Rough Country sight for the rear sight on my GP-100, but would like to know why it’s so far off in the first place.

Ruger has a pretty good reputation for revolvers so there are a couple of things I would double check before contacting Ruger:

1) Shoot it out of a rest or have someone else shoot it to confirm the issue.

2) Physically look at both the front and rear sights to make sure the position of the sight assemblies are actually centered on the pistol.

If the group doesn’t move out of a rest when you move the sight then there is a likelihood there is something else wrong with the pistol. In which case I would call Ruger and ask them when comes next.

Thinkingblade

The Ruger mk1- Extreme!