How to Keep Scope Tube From Slipping

Young Once · 04-25-2011, 09:41

So the scope's on and the screws are really tight. As you shoot, you notice that the scope moves forward little by little, propelled by the recoil of your rifle. Result, you will have to move it back by loosening the screws and retightening again. Is there anything that can be applied on the scope tube where it makes contact with the scope rings to prevent it from moving or slipping with the recoil? If so, where might this be available? TIA guys!

Atomic Punk · 04-25-2011, 09:51

i took some of those long thin balloons used to make animals and all that. split it open on one side and made a wrap of the new band around the scope where the rings hold it. seemed to work pretty well. pick a dark color and trim carefully and its not very noticeable

foxyyy · 04-25-2011, 10:11

what scope mount you using? you should use larue, bobro & american defense scope mounts..all are rock-solid & return back to zero even if you dismount them..

gundog · 04-25-2011, 19:03

we fixed that problem using a torque wrench. good thing we had shihan to help coz that wrench is imposssible to turn

Wp.22 · 04-25-2011, 20:34

gundog, did you also a use a drop of loctite blue in the screws before torquing it?

gundog · 04-26-2011, 00:34

Quote:

Originally Posted by Wp.22

gundog, did you also a use a drop of loctite blue in the screws before torquing it?

yup. blue loctite

Young Once · 04-26-2011, 07:15

I use Milllet scope mounts. Gundog, what pressure (don't know if the term is correct) do I use with the torque wrench?

gundog · 04-26-2011, 07:31

Quote:

Originally Posted by Young Once

I use Milllet scope mounts. Gundog, what pressure (don't know if the term is correct) do I use with the torque wrench?

30 psi. i think mine is a BSA. got it at stronghand.

Putok-Glock · 04-26-2011, 08:32

mebe you mean 30 inch-pound, and its torque not pressure. Its the force exerted from a measured distance from the point being torqued. So be consistent where you place your hand in the handle of the wrench. Positioning the hand in different areas of the handle each time produces different torque even if the meter says the same specially w/ these smaller tools (in-lb vs ft-lb).

I use a thin mounting tape lining between the scope and rings. and tightening the screws in small increments alternating each side to ensure they tighten up evenly and at the same time.

hth

gundog · 04-26-2011, 08:46

Quote:

Originally Posted by Putok-Glock

mebe you mean 30 inch-pound, and its torque not pressure. Its the force exerted from a measured distance from the point being torqued. So be consistent where you place your hand in the handle of the wrench. Positioning the hand in different areas of the handle each time produces different torque even if the meter says the same specially w/ these smaller tools (in-lb vs ft-lb).

I use a thin mounting tape lining between the scope and rings. and tightening the screws in small increments alternating each side to ensure they tighten up evenly and at the same time.

hth

yup thats it

Putok-Glock · 04-26-2011, 08:49

Correction to my post above, think I had it in reverse
Applying force on differnt areas on the handle could result in the same torque as read in the meter but the amount of force applied should vary as the point of application varies, to produce the same torque.

clear as mud

Putok-Glock · 04-26-2011, 09:13

to clear my brain of mud

say I am to change my car's tire, I am to remove the wheel nuts w/ a tire wrench. If I turn the wrench w/my hands on the outer ends of the wrench I need to exert a lot of my strength just to turn loose a nut. But If I put a long metal pipe on one end of the wrench to make the handle longer say +3ft, and place my effort at the end of the pipe, I exert much lesser force to loosen the nut. In both instances I produced the same amount of torque to loosen the nut but each time w/ varying amount of force applied on different distances from the nut.

I think we all had experiences on this...sooo, can somebody tighten this loose nut now

pardon my ot

Taurus · 04-26-2011, 09:30

On my rimfire I just used one-inch segments of rubber band as lining inside the scope rings. One on top and one under for each ring. Once those band segments are all squished they do a pretty good job of gripping the scope tube.

Young Once · 04-27-2011, 07:06

Thanks for all the great advice guys! Really appreciate it!

Wp.22 · 04-27-2011, 07:48

In my case the scope is not the one moving its the base of the scope must be the dovetail mount. To solve that problem i remove the stock screw from the scope mount and drilled the hole of the mount to make it bigger to accomodate a bigger allen screw and use a stainless nut to secure it with blue loctite opkors.