Measuring a Dovetail Cut?

[Ol Bob]

This is probably a simple question for you experienced builder but I want to replace a front sight and need to know how to measure the dovetail to order the proper base. How is that done--spot 1) or spot 2) or 3) somewhere/how else?
Thanks Bob!

 

[64Springer]

I bet lots of folks here would like that answer too.

Just goes to show that no question is a dumb one.

 

[2 shots]

should be measured at the base.

 

[Ol Bob]

So location number 2?

 

[deerstalkert]

yes

 

[Ol Bob]

Thank you for the replies fellas!

 

[deerstalkert]

sorry for the short answer but i just sanded a stock from 80grit to 320, and thats hard on an old man. if i wasn't so tired i could add info about angles and hypotenuse's and such. you are usually safe with just the base measurement. fairly standard at 3/8" but.................
and if you have to fit the sight, alter the sight not the dovetail.

 

[Ol Bob]

No worries deerstalker. I appreciate the answer!

 

[Scota@4570]

Cut some shim stock with a long taper. Use that to get an idea of the width.

 

[deerstalkert]

No worries deerstalker. I appreciate the answer!

worth every cent you paid! you realize this is a forum of voyeurs right? we live for pictures.

 

[ord sgt]

Take measurements of the sight that you want to replace. Most sights are made to a standard size. Casting of the base may alter the size a little bit. If so, remove the rough cast edges with a three sided file. You want a tight fit. Drive out the old sight from left to right. Install the new sight from right to left.