Blue Loctite failed on scope rings. Any recos?

[Calculon]

Took lots of time to get the scope on my MSR mounted, secured and sighted in. Two weeks ago at a 3 Gun aim was slightly off to one side but I figured it was just me not mounting rifle properly. This past weekend at another event I took the rifle out of the bag and my scope had spun about 45 degrees in the mount. Base was still solid but rings were loose enough for scope to spin.

Double checked that I had used blue loctite and found the residue so I know I didn't forget it. Any thoughts on why it failed? Would a good degrease of screws and rings work to remount with blue, or should I use the purple stuff? I know I don't want the red in case I want to remove it in future.

What say you?

 

[GOYABEAN]

 

[redtail]

I have had it separate in tube from sitting, a visible thin watery part and thicker on application.
Maybe just needed to be shaken?

 

[Calculon]

To be clear the screws had loosened despite the loctite. Possible that I didn't shake it well. I lapped the rings and used the bubble level setup (Wheeler?).

 

[kev74]

Definately decrease before you use loctite. Alcohol, acetone, brake cleaner or mineral spirits will all work, but you have to start clean!

 

[ManrisFrack]

You leave it in a hot car?

I think purple is weaker than blue, by the way.

 

[Jezman]

Took lots of time to get the scope on my MSR mounted, secured and sighted in. Two weeks ago at a 3 Gun aim was slightly off to one side but I figured it was just me not mounting rifle properly. This past weekend at another event I took the rifle out of the bag and my scope had spun about 45 degrees in the mount. Base was still solid but rings were loose enough for scope to spin.

Double checked that I had used blue loctite and found the residue so I know I didn't forget it. Any thoughts on why it failed? Would a good degrease of screws and rings work to remount with blue, or should I use the purple stuff? I know I don't want the red in case I want to remove it in future.

What say you?

What did you torque them to?
What color did you use First time?

 

[Calculon]

I used used the blue Loctite the first time. Not sure what I torqued them to but I do recall it was to specification by the scope manufacturer.

 

[togmaster]

Clean both the screws and threaded base with alcohol and allow to dry before applying blue loctite. Applying to a clean surface is important.

 

[Deplorable Me]

Loctite comparison:
The Difference Between Red, Blue, Green and Purple Threadlockers - Henkel Adhesive Technologies Blog

I always though green Loctite was the way to go. Sight in, re torque to specification then finish with green.
https://www.permatex.com/products/t...ermatex-penetrating-grade-threadlocker-green/

green loctite for scopes - Google Search

 

[Jezman]

What did you torque them to?

I used used the blue Loctite the first time. Not sure what I torqued them to but I do recall it was to specification by the scope manufacturer.

Ok what type of mounts?

 

[Calculon]

Scope is SWFA 1-6x24
SWFA SS HD 1-6x24 Tactical 30mm Riflescope

Mount is a Primary Arms Extended AR15 scope mount (aluminum)
https://www.primaryarms.com/primary-arms-deluxe-extended-ar15-scope-mount-30mm

 

[Eddie Gunks]

I have never used loctite on any scope i have used.

my current rifle scope has had nothing done to it in over 5 years. Mount is fine. Holds zero fine (as you saw on sunday)

just torque it down correctly in the right sequence and you will be fine.

I bet you just did not torque it correctly.

 

[Calculon]

I have never used loctite on any scope i have used.

my current rifle scope has had nothing done to it in over 5 years. Mount is fine. Holds zero fine (as you saw on sunday)

just torque it down correctly in the right sequence and you will be fine.

I bet you just did not torque it correctly.

Hard to believe I did something wrong...

I'll clean it up and remount. Just interested to see if anyone else had similar experience.

 

[Mosinitis]

Use torque wrench and proper amount of torque on the screws. Plus Vibra-Tite, it works better then loctite on small screws.

 

[tony]

You mentioned lapping the rings. Is there still a small gap between the halves when tight?

 

[Mosinitis]

Good point ^

 

[Calculon]

You mentioned lapping the rings. Is there still a small gap between the halves when tight?

Nothing obvious. I’ll check it out.

 

[Eddie Gunks]

Hard to believe I did something wrong...

I'll clean it up and remount. Just interested to see if anyone else had similar experience.

you did it wrong. Easy fix

do it right!

 

[Podmonkey]

You leave it in a hot car?

I think purple is weaker than blue, by the way.

It indeed is.

 

[Acer-m14]

just Stake it .. Stake it ..

LOL ..