I have a 617 with a 4” barrel. The revolver has been sighted in so not problems there. What my question is that rear sight blade is not centered in the sight assembly but more to the right of the total travel of windage. Is this normal? All of my other revolvers with adjustable sights are pretty much centered in the assembly.
Sight question: 617 with 4” barrel
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5Wire
Member
If its sighting is correct for point of impact/point of aim, the rear sight position is correct for that revolver as it is.
If things don't line up visually, the front sight may be out of position in relation to the barrel, the barrel may not be rotated so the front sight is upright, the barrel may not be installed correctly, the muzzle may be incorrectly crowned, or any combination of these conditions.
My guesses, others may have more.
If things don't line up visually, the front sight may be out of position in relation to the barrel, the barrel may not be rotated so the front sight is upright, the barrel may not be installed correctly, the muzzle may be incorrectly crowned, or any combination of these conditions.
My guesses, others may have more.
valkyriekl
Member
I've noticed with all of my adjustable-sight S&Ws that the rear sight has to be moved off to one side for POA = POI at 50 yards. At 15 feet it isn't an issue. This is due to a number of things: variances in manufacturing with the barrel being slightly canted to one side, the front sight not being perfectly square, the rear sight slot not being perfectly cut straight, the way the gun recoils in my hand, the way my eye lines up with the sights...all that stuff.
That's why the sight is adjustable--there are so many variables that making it dead-on is prohibitively expensive and time-consuming, and the adjustable rear sight is meant to compensate for it.
That's why the sight is adjustable--there are so many variables that making it dead-on is prohibitively expensive and time-consuming, and the adjustable rear sight is meant to compensate for it.
stevieboy
Member
Don't leave out the fact that POI depends on how one sees the target. I'm cross dominant, meaning that I'm right handed but that my dominant eye is my left eye. I tend to shoot significantly to the left of my POA (what I see in my sights is actually to the right of the point of impact). To compensate, I have to move my rear sight to the right on all of my guns with adjustable sights. Interestingly, I don't have that problem at all with 3-dot non-adjustable semi-auto sights. I recently purchased an S & W 1911 with three dot sights and I was delighted to find that, if I centered the front sight on the target, the shots would go exactly where I aimed. I think that may be due to the fact that the 3-dot semi-auto sights are considerably wider than the adjustable target sights on revolvers. But, that's just a guess.
David Sinko
Member
I have never experienced this in a handgun but I have a Marlin 1895GS with an XS ghost ring rear sight that needs to be adjusted all the way over to the right to be sighted in properly. It looks bizarre and sighting is kind of awkward but the gun is still very accurate. In these extreme cases I would suspect the front sight was not properly installed or the barrel needs to be turned slightly.
Dave Sinko
Dave Sinko
This situation is (or was) so common that S&W teach's the proper way th hit the barrel with the babbot bar to help this situation in their armorer class. It is my understanding that with the more automated manufacturing now it is not as common.
Since all my revolvers date to before 1989, I haven't wittnessed it yet.
Since all my revolvers date to before 1989, I haven't wittnessed it yet.
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