Sliding Scope due to Recoil

[billsouth]

I am new to this forum and you all have already helped me with advice as to something to put on the inside of my scope rings to keep it from inching forward on my Benjamin Trail Nitro Piston 2 air rifle. The suggestion I am going to try (waiting on replacement rifle) is double sided mounting tape. Double sided carpet tape was mentioned but I am concerned with difficulty in getting the scope off of the rifle later. Now my question is this, please: if I have applied the tape to the inside of the rings and as I lower the scope down onto the lower halves of the ring, and the scope comes into contact with the sticky tape, how do you manage to level the scope, which is normally done by rotating the scope within the loosely tightened rings before tightening down for the final time? I really could use this final bit of advice because I really need to try something besides counting on the screws to hold a scope in place that is subject to strong recoil. Thanks guys.

 

[g.willikers]

How about using skateboard tape?
The stuff folks add to their grips.
A couple of thin strips might do the trick without any difficulty of taking things apart later.

 

[Bezoar]

your problem is almost going to be this

scope was made in a metric country, and the scope tube is an actual 25 mm and not the "25mm/1" the package said.

 

[d2wing]

Instead of tape us thin strips of rubber cut from a bike inner tube.

 

[rcmodel]

Instead of bike inner-tubes, skate board tape, or bubble gum?

How about buying some scope rings that fit your scope right.

There should never be a need for anything if the rings fit the scope tube correctly.

rc

 

[Kp321]

I'm with rc on this one. Scope rings should grip the scope if properly sized. Skateboard tape is too thick and would scratch the scope. If the ring halves come together when tightened, they are too big. There should be a small gap when properly sized. As an alternate to tapes, try putting some powdered rosin in the rings when installing the scope. Grips like no body's business and does no damage to the rings or scope.

 

[rodinal220]

3M Scotch Coat or equivalent "liquid" electrical tape. One thin coat inside the rings is what I use for all heavy recoil applications. Let it dry and then mount your scope.



http://solutions.3m.com/wps/portal/...ZCgs_6NT6927VB5_N2RL3FHWVK_GPD0K8BC31gv)&rt=d

 

[d2wing]

Good point RC.

 

[Odd Job]

I've had some scopes shift on a crossbow before (that thing is a real scope shaker).
For that reason and also to prevent scratching the scope tube I place a small strip of scotch tape on each half of the scope ring (sticky side on the ring). Electrical tape would probably work just as well. The rings seem to hold the scope better, especially for two piece mounts. Its not just about recoil, but also stopping the scope from rotating. I now use the tape on all my scopes and you can still reposition the scope as needed.

The only rings I haven't done this with are the Burris Signature Zee rings which have their own soft inserts. Those are great rings!

 

[Bob Bonillas]

I had that scope problem on my Big Cat 1200. I got scope rings that had a tension bolt straight down in the center of the lower mounts.

 

[Outlaw Man]

Why don't you level and eye relief-adjust the scope before you put the top ring halves on? You might have to pull the scope up slightly to break the tape's stickiness, but that doesn't seem like a huge issue. Just make sure you tighten the top ring in small increments and in an alternating pattern like lug nuts so it doesn't try to torque the scope.

I agree you should be looking for new rings, though.

 

[ugaarguy]

Cloth tape - thin strips of cloth with adhesive only on one side - is an old solution that works very well. It doesn't mar the scope finish, it lets the scope slide with the rings slightly loosened, and it grips the scope when compressed by tightened rings.

 

[Lee Roder]

Tar.

Find a neighborhood roofing project and grab a small chunk of roofing tar. Dissolve it in chloroform or other solvent (e.g. acetone) and apply. Leaves a very sticky film of zero thickness after carrier evaporates. Poor man's substitute for hydraulic brakes for bikes. Applied to bicycle rims, it will allow you to stop on a dime (albeit with a very loud squeal).

Might also be able to use resin (for violin bows) in the same manner. Just need a volatile solvent.

LR

 

[ApacheCoTodd]

I always keep my eyes open for metal shim stock. I must have 40 square feet of the stuff in steel, copper, bronze, teflon and the like. Our local ACE has several varying shim materials and if you look around the store - lots of other products waiting to be used in an alternative manner to the manufacturer's intent.

A great one is the different tubing for hobbyists cut length wise and rolled flat.

 

[gamestalker]

RC nailed it, yet again!

GS