I'm building a revolver out of a S&W 625 and using a 625-10 2" barrel. Does anyone know a formula yo figure out a rough estiment for sight heights?
My bore centerline from the front of the barrel is .466". That's taking the bore of the barrel which is .451" dividing in half and adding the thickness of the top of the barrel which is .240".
My bore centerline from the rear is .552". That's taking the bore of the chamber which is .485" dividing in half and adding the cylinder wall thickness of .063", the gap between the cylinder and top of the frame of .026", and the thickness of the top of the frame itself is .220".
The sight radius will be 4".
Now I'd like to keep the sight height of the front and rear as short as possible for concealabilty and no snag drawing but will set them with in reason to be useable. They will definitely be fixed sights front and rear. I'd like them to be sighted in for 10 yards dead on.
My goal is to have the rear sight not stick above or much above the rear of the frame where the notch is for the original adjustable sights. I'm either going to work the rear of the frame and just have a notch like a J frame or make a small piece to bolt on like this revolver done by Bowen.
Then the front I can make a dovetail sight what ever size it needs to be but hopefully not to tall.
Besides making a piece for the rear and going to the range and using the old paper clip method is there something that can help me figure out a sight and have the front sight close or a little to tall and I can file it down at the range to get it perfect. Maybe save a few trips driving back and forth?
Any help on this would be greatly appreciated. All the stuff I found online was for sight adjustments and that doesn't apply to me since I'm starting from scratch.
Thank you!
My bore centerline from the front of the barrel is .466". That's taking the bore of the barrel which is .451" dividing in half and adding the thickness of the top of the barrel which is .240".
My bore centerline from the rear is .552". That's taking the bore of the chamber which is .485" dividing in half and adding the cylinder wall thickness of .063", the gap between the cylinder and top of the frame of .026", and the thickness of the top of the frame itself is .220".
The sight radius will be 4".
Now I'd like to keep the sight height of the front and rear as short as possible for concealabilty and no snag drawing but will set them with in reason to be useable. They will definitely be fixed sights front and rear. I'd like them to be sighted in for 10 yards dead on.
My goal is to have the rear sight not stick above or much above the rear of the frame where the notch is for the original adjustable sights. I'm either going to work the rear of the frame and just have a notch like a J frame or make a small piece to bolt on like this revolver done by Bowen.
Then the front I can make a dovetail sight what ever size it needs to be but hopefully not to tall.
Besides making a piece for the rear and going to the range and using the old paper clip method is there something that can help me figure out a sight and have the front sight close or a little to tall and I can file it down at the range to get it perfect. Maybe save a few trips driving back and forth?
Any help on this would be greatly appreciated. All the stuff I found online was for sight adjustments and that doesn't apply to me since I'm starting from scratch.
Thank you!
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