S&W Revolver rear sight MOA ?

Rudy · Post by **Rudy** » Mon Apr 05, 2010 6:32 pm

Does anyone know how many MOA the adjustable S&W revolver sights are? - like the stock rear sight on a model 14 or 15.

thanks

Rover · Post by **Rover** » Mon Apr 05, 2010 9:33 pm

It depends on the barrel length.

Crank a dozen clicks on yours and see where the shots go.

Rudy · Post by **Rudy** » Thu Apr 08, 2010 9:12 am

They didn't standardize them for a given barrel length?

Rover · Post by **Rover** » Thu Apr 08, 2010 1:16 pm

Nope.

The guns were not really designed for target use, though many were used for that. You get what you got. Many did not even HAVE adjustable sights.

As I've been known to say, "Test it for yourself."

Guest · Post by **Guest** » Mon Apr 12, 2010 7:44 pm

One of the benefits of training with ISSF is that a shooter can develop the skill of being able to "sight in" a handgun in maybe about 10-15 shots. If you're not that steady in the hand then rest the butt of the grip on a bench and shoot.

There has to be some side benefits with all that training.

Gort · Post by **Gort** » Tue Apr 13, 2010 1:02 pm

OK, You ready. The elevation screw has a 80 pitch thread, so each revolution of the screw moves .0125", their are six detents, so .0125/6=
.00208, that is the movement per click. Assuming a 6" bbl., the sight radius is 7.125". Cut to the chase, Each click will move point of impact .263" @ 25 yards, double that at 50 yards. (.175 @ 50 feet)
Hope this helps. Gort

Rudy · Post by **Rudy** » Tue Apr 20, 2010 8:47 am

Thanks Gort!

JamesH · Post by **JamesH** » Tue Apr 20, 2010 11:00 pm

Gort wrote:OK, You ready. The elevation screw has a 80 pitch thread, so each revolution of the screw moves .0125", their are six detents, so .0125/6=
.00208, that is the movement per click. Assuming a 6" bbl., the sight radius is 7.125". Cut to the chase, Each click will move point of impact .263" @ 25 yards, double that at 50 yards. (.175 @ 50 feet)
Hope this helps. Gort

Except the S+W rearsight is cantilevered and the screw is part way along the cantilever.

Furthermore, the length of the cantilever is variable since the tang is curved and contacts the top rib at a position dependent on the elevation setting.

Gort · Post by **Gort** » Wed Apr 21, 2010 8:06 am

James, The elevation screw is very close to the rear sight blade, having little effect on the numbers. The mounting screw location has even less effect on the elevation movement. The numbers in my previous post are certainty accurate enough for shooting, maybe not for a Mars landing. :)
Gort