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 Post subject: Adding Sights To a Smooth Bore Shotgun With Stanard Beads
PostPosted: Wed Oct 24, 2007 2:16 pm 
Field Grade

Joined: Fri Jun 02, 2006 4:32 pm
Posts: 70
Location: Northern Virginia
I have a 20 gauge Mossberg 500 with a smooth bore barrel that I want to add sights to for deer hunting with foster slugs. Does anybody have any product recommendations that I can purchase to accomplish this modification? Thanks. Chuckster

Adding Sights To a Smooth Bore Shotgun With Stanard Beads


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 Post subject: re: Adding Sights To a Smooth Bore Shotgun With Stanard Bead
PostPosted: Wed Oct 24, 2007 3:21 pm 
Tournament Grade

Joined: Mon Nov 06, 2006 1:19 pm
Posts: 163
I don't know about sights, unless the barrel has a rib. If is does, I believe truglo makes some fiber optic sights to fit the rib.

Maybe a weaver or bsquare receiver mount with a red dot or low power scope would be better?


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 Post subject: re: Adding Sights To a Smooth Bore Shotgun With Stanard Bead
PostPosted: Thu Oct 25, 2007 12:18 pm 
Presentation Grade
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Joined: Wed Dec 03, 2003 5:14 pm
Posts: 864
Location: Monroe, Wisconsin
Williams also make sight that will clamp down to a vent rib. B-Sqaure make a catilever scope mount for vent ribs as well.

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 Post subject: re: Adding Sights To a Smooth Bore Shotgun With Stanard Bead
PostPosted: Sun Oct 28, 2007 8:55 am 
Utility Grade

Joined: Mon Sep 24, 2007 12:52 am
Posts: 9
Location: Ontario, Canada
Hiviz makes a set that clamps to the rib as well as a set that mounts on a smooth barrel using double sided tape.

I just mounted the hiviz on the rib of my 870 and it works great. The front site is magnetic and is solid when set over the front bead and the rear is attached like a clamp.


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 Post subject: re: Adding Sights To a Smooth Bore Shotgun With Stanard Bead
PostPosted: Mon Oct 29, 2007 12:33 am 
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Joined: Thu Oct 04, 2007 8:59 pm
Posts: 384
Location: Montana, U.S.A.
Well, this is a last ditch method if all else fails. I have a Braztec .410 I use for load development because of it's uniquely falty extractor. This extractor is not a perfect fit to the bore and leaves a bulged out rib like seam along the brass head on the bottom of any shell fired in it. This bulge is of very consistent size when measured with a micro-meter on a factory pressure load. Make up some reloads using reliable published data and you get an almost (within a couple microns) identical size bulge. Make the load a grain hot or a grain shy and you get a pronounced difference in the bulge size which is abvious by direct visual observation much less a micro meter corrosponding to the resulting pressure difference. Go a notch hotter and it splits the brass head right where that bulge usually forms. Thus I have a way to check my crazy out in left field homecooked loads for correct pressure with fresh hauls. Yes, I do use an armored safety enclosure and fire the gun via a string during such testing. Anyway I didn't want to drill and tap the gun and so weaken it for use in such testing, and yet wanted to mount a sight for using it in the feild.

Okay, enough gabby background story. Take some 400 grit wet/dry sand paper and carefully sand off the finish of the barrel by hand for about a 1/4 inch wide strip about 4 inches long on the top of the barrel. Next take a Weaver rail and place the sand paper over the barrel with the rough side up. Run the Weaver rail back and forth over the sand paper until the bottom of the rail now perfectly matches the curvature of the barrel. Finally use "JB-Weld" to attach the Weaver rail to the spot you sanded on the top of the barrel. The spot that was sanded should be slightly smaller then the Weaver rail so that you get full coverage with the "JB-Weld" and their isn't any bare metal left exposed so it's still rust proof. Mount your choice of scope on top of the Weaver rail. My prefrence is a $40 Walmart BSA red-dot. Oh, yah use the original full strength "JB-Weld" that takes like two days to fully cure and not that much weaker "JB-Quick" stuff. I've beat the h*ll out of my mount and it's stayed rock solid.

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