Rear sight dovetail

[ginseng503]

I intend on removing the rear buckhorn sight from my rifle and install a rail or mount to hold a Burris Fast Fire red dot or an Eotech style sight. My thought is to use the rear dovetail as part of the attachment.

The rifle is a Uberti Rolling Block in 22 Hornet. I believe it is a rebadged Pedersoli. It has 3/8 dovetails for the front and rear sight.

I don't have calipers yet but from Pedersoli they describe the dovetail size as, 9.5mm x 30 degrees x 2.5 height. I think at 2.5 height it will stick up and 2.0 may be flush, but I'm not sure.

Anyway, I don't want to bubba this nice rifle up. It would be nice if another companies dovetail or mount would fit on. Has anyone encountered a similar quandery? What would you do? My experience is limited here. Thanks

Oh almost forgot. It has a tapered octagon barrel, approx. 18 mm at muzzle and 24 mm at receiver, distance 63 cm.

 

[yhtims]

Them thar uropens is fine folk , but you better measure twice and cut once!!!!!Most european dovetails are 1/2-45 , most northamerican dovetails are 3/8-60 . Most european dovetails drive left to right , most northamerican dovetails drive right to left!Same for taper pins in actions.A taper gage will give you the heads up on sight dovetails, and as a rule the pins will follow.With so many Italian and Spanish companies making old Browning patents these days you have to be careful to establish whos roots they are following theirs or ours????????

 

[ginseng503]

This is what I am looking at. I did not drift it out yet. The rough caliper measurements are;
0.351 base x 0.284 top x 0.087 height

Pedersoli "calls" this a 3/8 dovetail. I have not found a blueprint or machine drawing of the part anywhere so am guestimating a bit here. I have found references that say Uberti can use Pedersoli sights.

I am likely to have this solved soon. I have forwarded this info to Josh at Stormwerkz, aka, Urban_Ops here. He makes rails and has a lot more experience than me.

Feedback is welcome though. That's why this forum is so great. Back in the day, many custom rifles were made using the rolling block action and machined mounts and some smiths still do a lot of this work I'm sure.