Scope ring height question on a Cooper

BOBTAILS

BOBTAILS

Active member
I am wanting to put talley lightweight rings on my first Cooper. Question is what is the shortest height I can get away with? Scope is a Ziess 4.5-14x44mm.
 
Originally Posted By: http://www.talleyscoperings.com/ RING HEIGHT: RULE OF THUMB : Low Rings for scopes with up to a 44mm objective lense if your rifle has a sporter weight barrel. Medium Rings for scopes with a 50mm objective lense if your rifle has a sporter weight barrel. High Rings for scopes with a 56mm objective lense if your rifle has a sporter weight barrel. Consider your rifle's barrel contour - If your scope has a 42mm objective and your rifle has a heavy contoured barrel then you will need to move up to a set of medium rings, etc. Extra High Rings for scopes with a large objective lense when mounted on rifles with a heavy barrel and some single shot rifles. Scopes vary from model to model and from manufacturer to manufacturer so the above is only a rule of thumb. We do NOT guarantee that this will work for your rifle and scope combination. Based on years of experience, the above normally works for slim profiled scopes such as Leupold and Swarovski but most likely will not work for heavier profiled scopes such as BSA and Burris.

Just going off the data here. No experiance first hand.
 
I run Talley mediums with Zeiss 50mm on a couple guns, and one gun with mediums and a 44 obj. The 44 clears by enough to make me think the lows might fit. Not sure about the big zeiss eyepiece clearing the bolt handle though, or about butler creeks fitting.

Last time I had your issue I ordered both and sent back the ones I didn't want. The package will open without ruining it.
 
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On one of my 38's I have Luppy bases and Burris signature rings (I forget the height) but there's about .625 between the top of the receiver and the bottom of the scope tube and on a 40mm Luppy there's right at .200 between the scope and barrel. The Talley equivalent to that would be a high ring with .600 between the receiver and scope tube. But on your 44obj that .200 is going to be cut way down.

Mediums are .500 which I doubt would work
Lows are .400 and that's never going to happen, I don't think my 40 would work on a low ring.

I used extra highs for my 6-18x50 Swarovski and have a little over 1/8 clearance. Just enough for a scope coat as a matter of fact.

I do like the clean look of the Talleys but had to go back to the included Luppy bases and Burris signature rings on one of my 38's as there was a slight misalignment issue with the receiver holes and it put the scope in a bind.

I used the same rings and bases on my 3rd model 38 as I had the parts handy and didn't want to order the Talleys.
 
These are extra highs on a 50mm obj. Now upon first look a person would say there's tons of room there but the flutes on the barrel just make it look that way. If you can zoom the pic you will see there just inst as much as one would think.

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I started to second guess myself so I checked one of mine. This is a savage 10 predator with a medium heavy barrel, zeiss 50mm on talley LW mediums. I also have another savage with a heavier barrel, and a rem 700 with #4 Brux all with zeiss 50mm in talley mediums. I don't have any experience with Cooper though



 
Problem is we are not talking about savages and 50mm objectives or Nightforce scopes on Remington's.

Courtesy of the barrel nut on the savage your barrel steps down quit a bit from the action diameter to the barrel diameter. A step that is near non existent on a Cooper so the comparison is useless.

A Cooper 38 action is only 1.157 in diameter. The barrel starts at an inch in diameter and at the approx area where the bell of the scope would hit, the barrel is still around .980, a fairly straight taper. That means, if you were to draw a straight line from the top of the action out over the barrel, the place where the bell of the scope would be... There's less than an .100 gap. So you can see that comparing which rings are used on a savage or a Remington means nothing as to which rings will fit the little Cooper.

Now.. If we knew the exact outside diameter of the 44mm objective we could then use the math to figure out exactly which rings are needed. I'm still betting highs.
 
You may be right, as Tim pointed out it sounds like a cooper action is more lo pro than others.

And you'll notice the disclaimer in my comments above that I don't have any experience with Coopers. I was only pointing out my experience with Zeiss conquest scopes and Talley rings, which is very much in line with the quote posted above straight from Talley's website.

If I had my 44mm conquest I'd measure it for you, but unfortunately it's back with Zeiss being repaired.

 
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Disclaimers aside.... The problem is no one had experience with the Cooper 38 and everyone jumped in and said lows should work and there's no chance, not even a remote one that it will.
 
Never said lows would work, I was just supprised it was high or higher .

My Cooper wears Leupold ring/base and scope. Heck I don't even remember what size rings they are.
 
I have a set of Talley lightweight lows on my cooper with a swaro 44mm objective, but the objective bell on it seems smaller than some of my 42s and it doesn't have much clearance.
 
Originally Posted By: mbaysinger89I have a set of Talley lightweight lows on my cooper with a swaro 44mm objective, but the objective bell on it seems smaller than some of my 42s and it doesn't have much clearance.

Is it a model 38 and is it a Varminter or Montana Varminter with the heavy barrel?
 
Originally Posted By: Tim NeitzkeSince we got this thread all jacked up (sorry Rob), how is Cooper shooter Claimbuster doing, Darby ?

I haven't heard from ol' CB in a while. I'm going to send him an email and see how he's doing.
 
Its not a 38 its a 56 but it is a heavy barrel. The action is still very slender though. I believe it uses the same mounts as a 38 which would make the od the same. I'll look at the box the mounts came in and get back with you.

Made a mistake same bases as the 22
 
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Originally Posted By: BOBTAILSI am wanting to put talley lightweight rings on my first Cooper. Question is what is the shortest height I can get away with? Scope is a Ziess 4.5-14x44mm.

Place/stack pennies on your mounts until your scope clears. Then check how the scope sets up to your eye. Buy rings that are equal to the penny height.
 
Originally Posted By: Anton ChigurhThat would work...

But wouldn't it be more fun to have people speculate and argue about it on a forum?

Sorry, I killed the fun!
 


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