Cooey 600 Scope Questions.

[extmc]

I bought and installed a Weaver side mount on my Cooey 600, and installed the 1"H rings so that my Tasco 3-9 scope would clear the barrel. The scope is offset to the bolt side. What do I do? I want to use this scope on the rifle. Is there another mount that I should be looking for? Any thoughts or experience appreciated.

 

[HuskyDude]

Pictures would help lots.
You say "Weaver side mount"...they made many, which one did you use?

Here's a good site for ya.

Weaver Instructions and Manuals

Check out Weaver Detachable Mounts Flyer. (although Cooey is not listed)

 

[extmc]

I installed the 48402 mount as per the weaver site. I do not see any different side mount bases. There was no listing on the weaver site for different bases that I could find. I bought the 49350 rings to mount the scope.

 

[Potashminer]

I found the same on a Cooey 60. Made me think that maybe the Cooey was set up for the pressed metal mounts that used to come with those small diameter 3/4" or 7/8" Weaver scopes - from back in the "old days" when I was younger. I have the "new" side mount and rings - Weaver No. 2 base on the rifle - it also offsets the scope too far to the right, like OP is experiencing - I found and used longer mounting screws and slid a wedge in above them - got the scope mount tipped over more to the left - trial and error to see how much you would need. Ends up looking "interesting", shall we say...

Gets worse. Discovered that the "60" never was drilled and tapped at factory - the 600 was, so this 60 was somebody's work - possible that the holes are too high for the base? And, to add spice, I read how the barrels were often bent in the Cooey factory in the testing stage to get the bullet holes lining up with the sights - so this one also needed a shim at very front of the side base to be able to sight in the scope without running out of windage.

 

[J10archer]

The sun optics pic-side mount it inline with the bore. Not to expensive neither

 

[extmc]

I looked at the Sun Optic site, and I don't see how the side mount rail would work. Have you tried and used this system on a Cooey 600?

 

[Potashminer]

OP - was thinking. Assume that centreline of your current set up is 1/4" too far to the right. Then sight in so that your group is right on the vertical cross hair at 30 yards. That would mean that the misalignment would amount to that 1/4" error to the left, at 60 yards. Or sight in at 50 and have that error at 100 yards. I do not think a gopher head would know the difference?? You say that you are installing a 3-9 Tasco scope - no doubt a centerfire scope set with 150 yards parallax. You will have much greater parallax error within .22 range, than that misalignment on the receiver, unless you have a perfectly repeatable cheek weld. Has definitely been done, and seems to work fine for some.

From charts available on line, it looks like most 22 Long Rifle zero'd at 50 yards will be 5" to 8" low at 100, so that additional 1/4" left will be a very minor thing, at 100 yards.

 

[extmc]

I have sighted in at 50 yards, but just don't like the scope offset!! Yesterday afternoon 2 pigeons met their fate at 60 yards. I guess it's a matter of having things perfect, and I like having my scopes line up perfect. Somewhere there has to be a solution to the problem. I don't want to go back to the original style Weaver sidemount for the old 3/4" tube scopes!! My 65+ year old eyes like the better scope. Gophers north of Virden don't care what ends their life, but it's more interesting to watch them fall over at 150 yds. The best fun is the 17WSM at 250+!! Thanks for the thoughts and input. The Tasco is a Rimfire that I picked up down south last winter, on clearance for $29.