Scope Mounting Question

[Capt.Dunsel]

Looking for suggestions on a good epoxy for mounting up a scope.

Anybody got a good , easy brand they prefer ?

[kcstott]

You mean for bedding a scope base correct??? Cause you do not glue a scope mount on. They make screws for that stuff.

[hermosabeach]

????

I am lost? I have never heard of epoxy for a scope mount

[Capt.Dunsel]

Seems like kcscott is the only one that understood the question .

Maybe I simplified it too much for many , after all this is Calguns .

Now I will be off to find a good "glue" for my needs .

Camo duct tape didn't work so well

The "glue" is part of the instruction I got years ago and I thought that maybe after so many years there might be something better than I was taught to use way back when .

This is for a handgun , in fact a"Hand Cannon" and most likely the screws would have a tendency to shear off under recoil , been there done that .

Ishootforblood , been smithin' for awhile , a guy I called Uncle Parker told me to do it this way . I rarely need to take anything to a "professional".

hermosabeach , we learn something new every day here don't we ?

[kcstott]

I use 3M structural adhesive #460
Supper strong stuff that has excelent adhesion
Use a littl release agent on the screws and just snug it down while the epoxy cures 24 hours. Stuff cleans up easy to it's just $35 a tube

[Capt.Dunsel]

kcscott , Thank you for the suggestion . Looking for a tube now .

This is what I was taught to do , use crocus cloth or fine sandpaper to match receiver/barrel to the scope base . lightly until no sign of light can be seen between the two pieces.

Clean both base and barrel/receiver with alcohol/acetone to degrease threads and surfaces .Once clean do not touch any parts with bare hands .

Apply release agent ( was told bees wax ) to threads in barrel/receiver and screw threads.

Mix per directions for epoxy , apply small amount , just enough to cover part .

Mount base onto barrel/receiver and install screws , lightly . Slowly snug up screws one at a time .

Clean excess epoxy that comes out of joint with q-tip with alcohol/acetone .

Let sit over night .

Carefully remove screws , clean all threads with alcohol/acetone , apply Loctite (242) and reinstall base , switching from one to another until snug .

Torque all screws to 5 ft lbs , install scope .

Bore sight and take it to the range for final adjustments .

Sound about right ?

[kcstott]

Same basic concept but I do not remove the bases once bedded to the action.

Loctite not needed and should never be used on scope screws, At least if you want to get them out later on.

Here's a trick on setting screws without loctite.

Torque screws with a slight residue of oil on the threads, then take a punch and give them a good tap then retorque. those screws will never back out, but will come out clean when you want them.

[yari]

That's a good tip kc.

[ar15barrels]

Looking for suggestions on a good epoxy for mounting up a scope.

Maybe I simplified it too much for many

Devcon 10110

[ar15barrels]

This is what I was taught to do , use crocus cloth or fine sandpaper to match receiver/barrel to the scope base . lightly until no sign of light can be seen between the two pieces.

I never sand the base or the receiver.
Use the bedding material to take up the extra space.
You need to figure out WHERE bedding is needed.
One end of the scope base usually fits well.
Tighten the two screws on one end of the base.
Then check for movement at the other end with those screws left loose.
Then swap ends and loosen the first two and tighten the others.
You will likely find that one end is sitting high if you can see movement when you loosen and tighten a screw on the floating end.
This is the end that needs the bedding.
Clean the base and receiver, mix epoxy and put enough under the end which needs it.
Install all 4 base screws, tighten the non-bedded end and leave the bedded end screws loose so that the base will sit straight while the epoxy sets up.
Wipe off the excess that squeezes out.
Once the epoxy is cured, remove the screws that were left loose, clean out the excess epoxy from the threads and re-install the screws.
Now tighten all 4 screws to 20 inch pounds.

[Pauliedad]

Can someone post a picture of what you're talking about?
I've read each post like 4 times and while I see you're putting a scope base on a hand gun, I can't visualize what the glue is for.

[ar15barrels]

Can someone post a picture of what you're talking about?
I've read each post like 4 times and while I see you're putting a scope base on a hand gun, I can't visualize what the glue is for.

Bedding a scope base to a TC barrel is the same as bedding a scope base to a bolt action receiver.

[Whiterabbit]

bedding, and frankly, I think not a bad idea for some adhesion. I've had bases come off under recoil, it sucks to get hit in the face broadside with a scope.

holding tight now, being absolutely anal with the torque to get it perfectly even has been the best policy for me.

[Capt.Dunsel]

bedding, and frankly, I think not a bad idea for some adhesion. I've had bases come off under recoil, it sucks to get hit in the face broadside with a scope.

holding tight now, being absolutely anal with the torque to get it perfectly even has been the best policy for me.

Just for the curious , this is for a 375 JDJ . The epoxy really does help , even with the TSOB mounts .

And I was taught to get the best fit of base to receiver , sand them and get as much gap out before you mount .

[Whiterabbit]

mine is a 460S&W BFR. And sometimes it is the screws that give out. At that point it doesn't matter how tough the base is. Now I scrutinize the screws I use and the assembly process and final torque as much as equipment selection. Sounds like you are there too.