Problem with my scope?

Hey Dave

David K said:
Just wandering if you seen David Keen lately. If so tell him David Kenimer says hello for me . Thanks. By the way if your scope is not somewhat centered up your loosing some of the best optics. The closer to the center is where the best optics of a scope are. Shimmimg is the quickest fix.David K
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Hey Dave,

David Keen has not shot rimfire since Italy, he says he lost the urge & is playing with clay target & shotgun instead. By coincidence I am heading to Adelaide South Australia next week for the National Championships & will be seeing him for dinner 1 night, I will pass on your regards & tell him how good you & the Team USA boys have ben shooting & the big news that the threads he used to love to read so much are now banned from this site....
 
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I've said this before here, maybe worth repeating, it was told to me by the owner of Sightron. Think of a scope as a roll of paper towels, as you pull on a sheet with the roll fixed, it tightens up on the opposite side. If you run the elevation all the way out, there is nothing left on the windage side. Plus the fact that the optics are best at mechanical zero, the optics begin to deteriorate with every click. Of course, since there's hundreds of clicks, it's all relevant. Thanks, Douglas
 
I'm not convinced that shimming is bad; I would not shim between the scope and the ring, but between the base and the receiver wouldn't hurt. Of course, within reason/common sense, and don't crank down on the screws like you're working on a John Deere tractor. Thanks, douglas
 
Jim

I stand corrected, you are suppose to shim your $500.00 scope. Although I am at a loss to tell you how to shim it if you need windage to center it I'm sure the experts can tell you. Since the experts are 17 hours away I will still muddle thru it if you want.
 
Sometimes it’s as simple to fix as swopping the mounts, put the front one at the back and the back one at the front.

Peter
 
I am really hesitant to shim the rings. James i will call you and meet soon. I have a club meeting tonight and since I'm on the board I should go.
I measured the rings with my dial calipers. Both are the same height.
I'm stumped.
 
Shiming Rings

If you shim , shim the bases, and then be sure you lap them in. On dovetail recievers, I've never had a problem. Best bet, is to install Burris Signature Rings with Offset Insert.
 
These are not dove-tail rings. They are tip-off rings. They are similar to rimfire rings except they are 11mm instead of 3/8". They are made to mount on the rail on the Anschutz receiver- there is no mount. They attach directly to the rails made into the receiver- sort of like on a Ruger. These rails are designed for the Anschutz competition sights. The rings are made to mount directly to the rail.

If I shim under the rings it seems that the rings won't be aligned and would put pressure on the scope tube. There are no bases to shim.
I guess I could buy a base/mount to put rings on but that would raise the scope more. I guess a 20moa base with low rings might work.

Jim
 
Those you don't shim.

Well now, I don't know what to tell you. I'm sure if you that them over to James, he'll find out what the problem is.
 
A good friend at my club that knows firearms and optics suggested checking the rings to see if they have a front and back side- not swapping the front ring with the rear ring but turning them. He thought there might be some elevation through the ring's bore- that there might be a slope in each ring itself.
he had the same problem with his Anschutz. His solution was a base/mount with elevation built in. I may have to go that route.

Jim
 
Pepper, the correct term for what you have been describing as a rail is "dovetail". I'm not sure of the history but I think it may have been Winchester that first started machining dovetails on their .22 receivers in the fifties. Thanks, Douglas
 
Man, I just gotta ask. If you turn the scope 180 degrees, won't the target look awfully far away?

Ken
 
I don't shoot rimfire so my experiences mightn't be pertinent.

Normally, the zero of a new barrel fitted to my F/TR rifle has been within a MOA or so of the last one. However, I recently fitted a barrel and a heavier tuner & lost 10 MOA elevation on my scope.

Any possibility that you have a similar issue?

John
 
Yes it will

TangoTwo said:
Man, I just gotta ask. If you turn the scope 180 degrees, won't the target look awfully far away?

Ken
Click to expand...

I did it on purpose once to test a theory that groups only got bigger at a longer distance because we thought they should. Shot some groups at 100 yards then turned the scope around. Same 100 yards but the scope made it look like a mile. Sure enough...the groups were much larger.
 
Wilbur said:
I did it on purpose once to test a theory that groups only got bigger at a longer distance because we thought they should. Shot some groups at 100 yards then turned the scope around. Same 100 yards but the scope made it look like a mile. Sure enough...the groups were much larger.
Click to expand...

I was referring to the barrel of the gun not scope. The barrel is a clamp in, don't know if there is anything to keep from turning it a 180.
 
If you use the Burris rings with the inserts, I think you can get by with just using the right inserts to get the scope where you want it and "just fix it" without doing any harm.

Otherwise I think it is important to understand exactly what is off so you don't just start shimming and put your scope and action in a bind. It was discussed on a thread a couple of months ago stating " we go through all of this work to insure our bedding is perfect as to not put the action in a bind when it is placed in the stock. We can do as much harm on the top end with how we mount a scope to the action and stressing it.

Pappas is in the same town and has offered to help...take him up on it....he will be able to tell what is out of kilter then you can make an educated decision on how you want to fix it. You will sleep better knowing you didn't just put a bandaid on it.

Charlie
 
After talking to James and a few other people who know a lot more than I do, we think the problem may be in the scope itself.
I will try another scope I have before trying anything else.

Jim
 
We found that the problem IS in the scope, not the mounts. There are only 2 full turns for windage. Elevation does have 4 turns of the knob available, but the crosshairs stop moving with at least a full turn left- maybe 2 turns. That is where my problem is.
I will be sending the scope to Leupold.

Jim
 
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