View Full Version : Sako quad scope mount - machining (pic heavy)

12th Jul 2013, 05:37 PM
Finally got some time to machine a mount for my little Sako Quad .22lr

Has 33.5 MOA of taper inbuilt, which with the scope I've chosen should leave .75 milradians in reserve still allowing me to achieve a shortish zero (You'll need to excuse my mixing standards). I intend to fit a central sight & tunnel to the Quad as well for some fullbore practise, which is the point of my building the mount the way I have to ensure a very repeatable return to zero when interchanged on and off.




Dressing back the excess where the centre drill marks were, from the between centres setup

Cutting a lot of material off the Opti-lock rings (High I think).
Picked them up on ebay relatively cheaply second hand - in very tidy condition
(...and I just cut the #### out of them)

OD turning the large locating spigot on the underside of the modified rings, using the boring head.

Here it is 97% completed with an M40a1 mount I happened to have stashed, thrown in for comparison.
Machined the S/S Claws that will clamp into the dovetail, those garish hex bolts are the only M5x.8 ones I had & will be replaced with nicer dome head ones at my next convenience.


still a little deburring to do etc - but I'll just use it for now and when I accumulate enough little projects I'll clean them all up and look to have someone Ceracoate the lot.



14th Jul 2013, 01:27 PM
very nice Brian
the rifle looks nicer tho:D...but I am biased cos its a gun

3rd Nov 2013, 01:22 AM
Nice job:brava
Did you do it 'because you could' or because it fulfilled a function not available in other mounts?

6th Nov 2013, 10:35 PM
I have to say nice work. You sank a lot of time into that and it looks top notch.

I've got the Sako Finnfire, also with the range stock. Lovely guns.

Anorak Bob
7th Jan 2014, 03:57 PM
Hi Glen,

I was going to have a go about the agricultural look of the hex head bolts but given your background I'll let you get away with it. :D

Stylish execution. Well done.


20th Feb 2015, 07:04 PM
Hi all, a belated thanks for your kind comments - yeah there was definitely a bit of work involved but ultimately achieved the desired result. The taper calculations worked out to be spot on, leaving the bare minimum of elevation adjustment in reserve - can achieve the 30m zero I was after using only 1 milradian of the scopes internal elevation and everything else is up + there's additional holdover with the reticle if required (though its getting to be reaching out a fair distance with the venerable old .22lr).

Also have replaced those bolts for bob ;)

Never did get around photographing it in the daylight at the time, so here's a quick update.
http://imagizer.imageshack.us/v2/xq90/661/DLaRKI.jpg (https://imageshack.com/i/idDLaRKIj)

http://imagizer.imageshack.us/v2/xq90/540/gyPDmw.jpg (https://imageshack.com/i/f0gyPDmwj)

http://imagizer.imageshack.us/v2/xq90/902/2tTTc9.jpg (https://imageshack.com/i/p22tTTc9j)

Anorak Bob
20th Feb 2015, 09:09 PM
Superb Glen.:2tsup:

The button heads do look the part. I haven't machined much alumimium, are you using 6061?