Cooey Model 75 Scope?

walther

walther

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Hey all,
I have a couple Cooey Model 75's, and am unable to get one of them sighted in except for long distances, it just shoots too high for the iron sights to compensate. As well, one of the front posts is bent. So my question is this: Is it possible to get them drilled and tapped for scope mounts, and what mounts would I use?
 
I made a dove tail type mount for my model 75. I used a piece of 1/8"x1/2" mild steel flat bar. I used a large rat tail file to make a grove that fit the radius of the barrel and filed the sides to make it a dove tail. It is mounted where the rear sight was with a single screw. I counter sank the hole. The scope is a pistol scope with a long eye relief so it sits in far enough forward that it is easy to load the chamber. A red dot would work well for that too. The one screw mount seems to hold up pretty well. The mating of the grove and barrel seems to keep it straight.
 
I had a scope mounted on my 75. The holes had to be drilled forward of the chamber in the barrel, then a scout mount made from a weaver base . It brought the scope rearward and allowed easy access to load the chamber. Or you could drill the left side of the action for a side mount scope base. the top seems too flexible to drill for the scope mounts.
 
The simplest solution is to replace your front sight with a higher one. For example, switching to a Lyman sight that is .560 high should drop your hits about 4 " at 25 yards, or 8" at 50 yards, etc. This assumes that your front sight is the same as the one in my Cooey 75. These are great utility rifles with their open sights but I question whether it's worth the hassle of jury rigging a scope mount. Good luck.
 
Thanks for the advice. I think I would prefer a side mount. Which one will fit? I've looked on the internet at weaver, and it says theirs only fits the 60, 600, and 71. The cooeys I've seen all look like they have the same size and shape of action, will one of these work on my 75? Or do I need a different one altogether?
 
Nice job! Normally I'm not a fan of mounts on the barrel but I don't mind that one, it looks good. Can you give me any more details on how you fabbed up that second action screw? Both of mine turn to the right when I close that good ol' stiff cooey bolt, no matter how tight I turn that single screw.
 
walther said:
Nice job! Normally I'm not a fan of mounts on the barrel but I don't mind that one, it looks good. Can you give me any more details on how you fabbed up that second action screw? Both of mine turn to the right when I close that good ol' stiff cooey bolt, no matter how tight I turn that single screw.
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Stiff bolt you say? Mine is quite nice so I wonder if yours is full of crud or maybe modified to be #### on close? If none of the above then you could replace the trigger return spring which is what I did. I used 2 ball point pen springs woven together to reduce the upward pressure on the bolt which really smoothed things out.
As for the second action screw this is the easiest thing in the world:

Remove everything from the stock and draw a straight line along the original action screw hole and the 2 trigger guard screw holes. Use a drill press and lay the stock upper (flat) side down on the press table this will allow the hole to be in correct relation to the action. Drill your hole far enough ahead of the guard to allow you to re+re the screw without removing the guard.
Once you have the hole in your stock replace the action and using a hand drill mark the bottom of the action and then tear down again. Drill and tap where you marked the action. Clean up any burrs and cut your screw to length and your done.
My powers of description are some what lacking but hopefully you get the general idea.Good luck.
 
As far as mounting a scope on these beasties, there was a member who used 1" ID aluminum pipe to fashion a very cool mount for his cooey. Ended up being a side mount that he drilled/tapped into the reciever; with the top milled to a scope-rail profile he had a very solid looking mount. Sniperelite has some sound ideas too, even if he does talk about "..stiff bolts.." too much.:)
 
No it doesnt #### when it closes. The bolt is smooth enough being cycled, but is really stiff when you open or close it. Do you have any pictures of where you tapped into the receiver for that second screw, and also of lightening that trigger spring you were talking about?
 
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