front sight drill size

MINI SSS

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I lost the front sight from my 625-4 pre-mountain gun. what size drill should I use to drill the hole in the site blank?
 
I'm going to assume that you haven't done this before. File the tab so that it's a tight fit in the base. Use red Loc-Tite to hold the sight in the base for drilling. Using the sight base hole as a template, drill halfway through the tab from one side. Repeat from the other side. Put a small bend in the pin to help it stay in place. Coat the pin with red Loc-Tite to also help it stay in place.

Some people are a bit queasy about using the sight base hole as a template. It is very difficult to mark the tab and drill it outside the base. As long as you keep the drill bit normal to the tab, there is very little risk of enlarging the sight base hole.


Buck
 
Drilling for Front Sight

As "Haggis" stated, drill halfway through from each side. If you try to drill all the way through from one side, you will very likely break the drill bit.
I speak from experience!

- - -Buckspen
 
Thanks for the mounting instructions. This should be a sticky for Newbies mounting their first front sight. I filed and fitted a Redhawk gold bead front sight to my Security six using this technique. It works perfectly.
What I called a pre-Mountain gun is a Springfield Armory Commemorative special edition. It is the same comfiguration as a ss mountain gun, but produced before the "Mountan Gun" moniker was applied to this assembly of parts.
I bought it used and slightly beaten up, but .45 Auto MN's are rare and outrageously expensive. I lighly refinished the outside, polished the cylinders, and chamfered the cylinder openings.My friend ( A police armorer) went through the inside for a safety check. It is my favorite shooter, my go to gun for any situation. It must have had a few thousand rounds through it before I got it and the slick action showed it.
The Rimz polymer clips are my favorite for loading at the range and I use metal for field carry. With practice you can load as fast as a semi auto.
I like it for practice for my 1989 5" 625. It makes the heavier gun feel like a mild .38 special.
If you get a chance to buy a pre-lock Mountain Gun in .45 you'll never trade it. They are that good. My 625s are already promised to my nephew and then his son.
Sorry for the run on post. So,do you think I like my 625s? LOL
 
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