Dovetail cut in BB barrel? - Aperture Sights for BI 7-2, Engineering Grade Epoxy - Page 2 - RimfireCentral.com Forums

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  #16  
Old 11-27-2008, 11:46 AM
NOOk22
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Here's what the cuts look like.

I have been trying different iron sights but will probably settle on the Williams WGRS54. Tech sights has a brand new AR-type rear one that clamps on a dovetail so I will try mounting one of those too. It has clickable height and windage adjustments which makes it a bit better than the Williams in my mind. I have lyman globe sights and a bunch of riser blocks to help get it lined up up front. I don't think I will use the tech sights' front AR-post sight.



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  #17  
Old 02-15-2009, 11:49 AM
Jabberwo

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Dovetail Dimensions?

Hi,

I would love to get a dovetail cut into my bull barrel too. What are the dimensions and angle? I've been googling this morning and can't find dimensions listed anywhere!

cheers,
jab
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  #18  
Old 02-15-2009, 12:14 PM
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Dovetail Specifications

Quote:
Originally Posted by Jabberwo View Post
... I would love to get a dovetail cut into my bull barrel too.
What are the dimensions and angle?...
The manufacturer of the sight base that will be mounted on the barrel
should include recommended dovetail cutter specifications.

One does not cut a dovetail groove on a barrel
and, then, select a sight base.

You select the sight base first.
Then, based on the manufacturers specifications for the dovetail,
an appropriate cutter is selected.
Brownells High Speed Steel Dovetail Cutters
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  #19  
Old 02-15-2009, 12:29 PM
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Sorry, I edited out of my reply the fact I'm using the Tech-Sights. So the front sight dovetail needed is the Ruger factory dimensions.

-= jab
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  #20  
Old 08-22-2009, 11:43 PM
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If you were going to make this into a match rifle could you add an extension tube which has dovetail for the front sight on already on it?
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  #21  
Old 08-24-2009, 04:57 PM
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You could add a bloop tube for an additional sight radius, similar to one sold from Champion's Choice, or Sinclair. They have the holes for mounting dovetail base for the multitude of front globe sights. You would need to get one with a 0.750 clamping diameter.
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  #22  
Old 04-26-2010, 07:17 PM
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Quote:
Originally Posted by AzizaVFR View Post
You do not have to get a dovetail cut into the barrel.
The receiver is 1.166" in diameter.
Brownells sells a Dovetail scope base you can use to make a base.
They sell the base in 12" lengths.
AzizaVFR:
The link you give actually leads to a 4" rail, I presume those screws aren't in the correct positions.

I also presume the item you used was 080-032-101, (http://www.brownells.com/.aspx/pid=3...OPE_BASE_STOCK), " No.100-12, 1" (25.4mm) diameter base contour." The other options are flat and .840" so if the receiver is 1.166" the 1" would seem the best fit, is that what you used?

Finally does anyone know what type of screw holds the weaver rail on? It seems rather an odd threading. I don't know if the Russians have their own screw standards.

Thanks much.
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  #23  
Old 04-26-2010, 08:22 PM
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Here is how I have my BB set up for Iron sights.
https://www.rimfirecentral.com/forums...ht=iron+sights
The thread pitch is an odd size but is metric....the tread pitch is in the Russian
section some where ???

Swiss
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  #24  
Old 05-06-2010, 05:17 PM
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Well I got the rail I linked to above and essentially followed the diagram posted for the rail. Somewhat more conservative on the pin drill size though to give a very tight fit with a little filing.

Champions' Choice band 30 dollars
Lyman Globe 37 dollars
Brownell's Rail 10 dollars
AirForce Rear Target Sight 132 dollars
Shipping about 24 dollars (booo, first 3 items)

~ 234 dollars total

Result:


Real result I will find out in a few days time.

Incidentally does anyone know if the AirForce sight can use other screw in apertures, if so, which ones?
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  #25  
Old 05-06-2010, 07:10 PM
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all these look nice to me. I was wondering how do you go about mounting the front and making sure its in the correct position?
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  #26  
Old 05-07-2010, 03:23 AM
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Easy. Mount your rear rail. Get a perfectly flat surface to turn the rifle over and use as a straight edge. Your wife's granite/marble countertop is perfect. Loosely place the barrel band on the front of the barrel with the dovetail mounted. Press down on the front of the barrel to where the front and rear dovetails are on the counter. At this point both points are parallel. Tighten the barrel band while still in full contact with the counter. Once sufficiently torqued, verify you have equal and full contact with both dovetails.

You can mount your sights, and get your initial bore sighting done.
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  #27  
Old 05-07-2010, 03:39 AM
calixt0
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interesting.. thanks for the info. I've never shot anything other than standard notch and blade open sights and scopes... for the cost I don't see me going to this type of sights, but I appreciate the information immensely.
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  #28  
Old 05-07-2010, 12:30 PM
AzizaVFR
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Trust me. The first time you shoot a good set of aperture sights and you see how natural it is to aim because you focus on the target, not the front blade, you will get a pair. I can shoot about as consistent with these sights as I do a scope.
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  #29  
Old 05-08-2010, 05:12 PM
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Quote:
Originally Posted by calixt0 View Post
interesting.. thanks for the info. I've never shot anything other than standard notch and blade open sights and scopes... for the cost I don't see me going to this type of sights, but I appreciate the information immensely.
You can drop the cost by about 60-70 dollars if you go with a different rear sight than I did. Daisy Avanti is only 60 dollars... Or you could spend a lot more...
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  #30  
Old 05-10-2010, 10:00 PM
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For what it is worth as a warning to others, this sight set I choose is not well aligned. I think Mac must have a taller front barrel band. I will have to add a spacer somehow to mine to raise it enough...
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