Scope Mount Problem
Firearm & Gun Forum - FireArmsTalk.com > Long Guns > .22 Rifle/Rimfire Discussion > Scope Mount Problem

Reply
 
LinkBack Thread Tools Display Modes
Old 03-20-2012, 07:33 PM   #1
Feedback Score: 0 reviews
 
Join Date: Sep 2010
Location: Arlington,TX
Posts: 20
Default Scope Mount Problem

I recently put a scope on two 22lr rifles; a little Marlin tube fed semi-auto and a single shot Chipmunk for my grandson. The scope won't stay put on either of the two rifles. The recoil walks the scope forward on the mount until it comes off. I've been shooting for over 40 years; I know how to mount a scope, I've done this before. Has anyone else run into this problem or better yet has anyone else found a solution?

__________________
bwomble is offline  
 
Reply With Quote

Join FirearmsTalk.com Today - It's Free!

Are you a firearms enthusiast? Then we hope you will join the community. You will gain access to post, create threads, private message, upload images, join groups and more.

Firearms Talk is owned and operated by fellow firearms enthusiasts. We strive to offer a non-commercial community to learn and share information.

Join FirearmsTalk.com Today! - Click Here


Old 03-20-2012, 07:44 PM   #2
FTF_SUPPORTER.png
Feedback Score: 0 reviews
 
Cattledog's Avatar
 
Join Date: Mar 2011
Location: Portland,OR
Posts: 1,459
Liked 588 Times on 378 Posts
Likes Given: 535

Default

Sounds like the scope ring base and the mount (weaver?) arent a good match. One or both may be worn, out of spec or both. Being a cheap ass and that being a .22, first thing I would try is flexible shim material like soda can alum. Cut it to fit where the rings meet the mount, double layer it if you have to. Being softer material than the rings and the mount, it should crush. lock tite the rings screws and cinch up. New rings might be in order though.

__________________
Join the NRA Here!


"You can have it fast, cheap and accurate...pick any two."~Me

"Educate and Inform the whole mass of the people. Enable them to see that it is their interest to preserve peace and order, and they will preserve them." ~Thomas Jefferson
Cattledog is offline  
 
Reply With Quote
Old 03-20-2012, 07:45 PM   #3
Feedback Score: 0 reviews
 
Join Date: Sep 2011
Location: fordland,missouri
Posts: 11,099
Liked 862 Times on 648 Posts
Likes Given: 1

Default

Try either takin some paint off the rails, deepen the grooves a little w a triangle file or do both

God didnt make all men equal colonel Sam Colt did

__________________
Marlinman is offline  
 
Reply With Quote
Old 03-20-2012, 08:03 PM   #4
Feedback Score: 0 reviews
 
Join Date: Sep 2010
Location: Arlington,TX
Posts: 20
Default

One scope is a Redfield and the other is a Simmons both on standard rimfire dovetails and rings. If I left anything else off just let me know please...

__________________
bwomble is offline  
 
Reply With Quote
Old 03-20-2012, 08:12 PM   #5
Feedback Score: 0 reviews
 
Join Date: Sep 2010
Location: Arlington,TX
Posts: 20
Default

Wow, you guys are faster than the web site. It wasn't showing any replies until I posted that second message. I agree with both of you that the fit isn't tight enough. However, In both instances the screws are as tight as they can go. I could remove some metal from the scope ring side or put in a shim. I'm not confident of my ability to make it look right with no sharp edges. Is this a common situation?

__________________
bwomble is offline  
 
Reply With Quote
Old 03-20-2012, 08:15 PM   #6
Feedback Score: 0 reviews
 
Join Date: Sep 2011
Location: fordland,missouri
Posts: 11,099
Liked 862 Times on 648 Posts
Likes Given: 1

Default

Quote:
Originally Posted by bwomble
Wow, you guys are faster than the web site. It wasn't showing any replies until I posted that second message. I agree with both of you that the fit isn't tight enough. However, In both instances the screws are as tight as they can go. I could remove some metal from the scope ring side or put in a shim. I'm not confident of my ability to make it look right with no sharp edges. Is this a common situation?
Yes it is. Easy way to get rid othe sharp edges is to cut the excess aluminum away from the outer edges of the rings w a sharp new razor blade

God didnt make all men equal colonel Sam Colt did
__________________
Marlinman is offline  
 
Reply With Quote
Old 03-21-2012, 04:39 AM   #7
Feedback Score: 0 reviews
 
big shrek's Avatar
 
Join Date: Feb 2008
Location: NW Florida
Posts: 1,310
Liked 72 Times on 66 Posts
Likes Given: 539

Default

A drop of RTV silicone or Blue Loctite under the mount/rings works wonders
(Yeah, freekin gasket sealer...hehehe...go figure...LOL)

__________________

Calico Specialist
Marlin Specialist
I'm not just Trigger Happy, I'm Trigger Ecstatic!!

big shrek is offline  
 
Reply With Quote
Old 03-21-2012, 05:00 AM   #8
Feedback Score: 0 reviews
 
hiwall's Avatar
 
Join Date: May 2011
Location: Cleator,AZ
Posts: 3,391
Liked 764 Times on 488 Posts
Likes Given: 240

Default

I would get different rings. They are the problem and while you could maybe fix them why try? Rings are fairly inexpensive and you have many brands to choose from. Buy some name brand rings and put the problem to bed.

__________________

Just walking on the edge of of my grave.

hiwall is offline  
 
Reply With Quote
Old 03-21-2012, 05:09 AM   #9
JTJ
FTF_SUPPORTER.png
Feedback Score: 0 reviews
 
JTJ's Avatar
 
Join Date: Oct 2010
Location: Lake Havasu,Arizona
Posts: 6,601
Liked 2399 Times on 1296 Posts
Likes Given: 690

Default

Or you could get an air rifle adapter base. It will require standard Weaver based rings. The adapter mount has additional set screws from the top down to help keep the base in place. A second possibility is a base stop for an air rifle. Spring air rifles have worse recoil than a 22lr and are known to move scope rings.
http://www.amazon.com/UTG-11mm-Weaver-Adapter-Adjustable/dp/B001CJ67E6/ref=sr_1_1?ie=UTF8&qid=1332302901&sr=8-1

__________________

Patron Member NRA
"I would not be an old man if I had not been an armed young man." JTJ
I was taught to respect my elders but they are getting harder to find.

JTJ is offline  
 
Reply With Quote
Old 03-21-2012, 06:56 PM   #10
Feedback Score: 0 reviews
 
big shrek's Avatar
 
Join Date: Feb 2008
Location: NW Florida
Posts: 1,310
Liked 72 Times on 66 Posts
Likes Given: 539

Default

Many rimfire accessory rails are well known for slide...its just that there is little purchase unless you REALLY crank down on them...
its like attaching a scope to a knife blade...Whether you buy Weaver or cheap no-name rings, they'll still slide without a little something extra.

DIP offers the perfect rail to resolve the issue...yeah, the ad sez Marlin, but it fits anything with a 3/8" accessory rail.
http://www.diproductsinc.com/Detail.aspx?PROD=164828&CAT=3603

But as cheap fixits go...a drop of Loctite/Blue RTV solves the problem for ages...

__________________

Calico Specialist
Marlin Specialist
I'm not just Trigger Happy, I'm Trigger Ecstatic!!

big shrek is offline  
 
Reply With Quote
Reply

Thread Tools
Display Modes


Similar Threads
Thread Thread Starter Firearms Forum Replies Last Post
AR-7 scope mount? Couch_Warrior .22 Rifle/Rimfire Discussion 9 04-07-2011 05:20 PM
Scope Mount for the M1A TXnorton Auto & Semi-Auto Discussion 10 11-29-2010 09:27 PM
Is there another way to mount this scope? KimberMan Gunsmithing Forum 1 11-10-2010 07:49 PM
Amega Scout Mount Problem SHIFTY Mini-14 Forum 0 07-18-2010 12:43 AM
Md 12 Rem. Scope mount 2gun .22 Rifle/Rimfire Discussion 3 02-10-2009 01:54 AM