marlin 795 scope mount?

[ck867]

I just picked up a marlin 795 and a bushnell 3-9x scope. The scope came with 3/8" dovetail mount rings so i used them to mount it onto the marlin 795. I took it out shooting for the first time today and after about 100 rounds I noticed the scope slowly creep backwards. When i installed the scope, I felt like I had tighten it really tight and I used loctite on the screws also. Anybody have any input on how to to secure this scope better?

[deebix]

loctite + hairdryer = invincible

[ck867]

loctite + hairdryer = invincible

should I be using loctite on the dovetail mount where it clamps onto the rail of the gun? I used loctite on the screws that tighten the mount but that didn't seem to prevent the scope from sliding back. My scope never actually got loose on the rail, it just slowly creeped backed on it

[D53]

What about moving your rear mounting ring closer to the front so that way you have more distance between your monting ring end and the end of the weaver mount, then doing the locktite. Also you can install (light epoxy) a rear end cap so that way the scope ring wont move to the rear.

[bigthaiboy]

I drilled and tapped my Marlin 795 receiver and fixed a UTG Ruger 10/22 picatinny rail similar to this : http://cgi.ebay.com/UTG-WEAVER-PICAT...lenotsupported

This allowed me to switch over to full size scope rings and my scope no longer loses zero.

[ck867]

I drilled and tapped my Marlin 795 receiver and fixed a UTG Ruger 10/22 picatinny rail similar to this : http://cgi.ebay.com/UTG-WEAVER-PICAT...lenotsupported

This allowed me to switch over to full size scope rings and my scope no longer loses zero.

I would prefer not to drill and tap since I don't know what tools are involved and whether I have them or not. Any other marlin 795 owners with scope mount solutions?

[cvgunright]

I had the same problem.. I mounted the scope forward but it actually
narrows a little at the front mount and I lost my zero with the scope drifting backwards ...I moved it back towards the butt, took my biggest flat head and jammed the screws home... I've fired over 500 and it hasn't drifted backwards....

so check the width of the rail when you mount the scope to make sure it is even

[ck867]

I had the same problem.. I mounted the scope forward but it actually
narrows a little at the front mount and I lost my zero with the scope drifting backwards ...I moved it back towards the butt, took my biggest flat head and jammed the screws home... I've fired over 500 and it hasn't drifted backwards....

so check the width of the rail when you mount the scope to make sure it is even

so you are suggesting i install the scope all the way back on the rail?

[cvgunright]

so you are suggesting i install the scope all the way back on the rail?

No...looking at the picture you are at the very fore end of the rail. move it back maybe 1/4 inch and the grooves are more aligned...If you move it all the way back you're going to have the same issue with the mounts losing their attachment. good luck

[ck867]

No...looking at the picture you are at the very fore end of the rail. move it back maybe 1/4 inch and the grooves are more aligned...If you move it all the way back you're going to have the same issue with the mounts losing their attachment. good luck

ok I'll give that a try. Thanks

[ck867]

TTT. I am still having this issue after testing it again today. Started to slowly creep back throughout the 300 rounds I put through it. Any suggestions? Would changing the dovetail ring mounts help?

[maxicon]

Dovetail rings usually come with one of 2 types of clamp. They'll either be single piece clamps, where there's a split in the base and the screw squeezes the base together, or a 2 piece clamp where there's a separate clamp that the screw pulls tight.

The single piece are cheapest, and are often included in combos. They don't hold super well, and are very dependent on how well everything's in spec.

If you've got the single-piece base, that's probably your problem.

2 options - either get a set of better 3/8" dovetail rings with separate clamps, or get a dovetail to Weaver/Picatinny adapter and use standard rings.

Dovetail rings:

http://www.midwayusa.com/browse/BrowseProducts.aspx?tabid=10&categoryid=8589&categorystring=657***698***8582***

Note that some are for 11mm dovetails, which are nearly the same size as the 3/8" dovetails found on American guns, but the 3/8" dovetail mounts are cut at 45 degrees under the rail, while the 11mm mounts are cut at 60 degrees, and that can reduce the clamping force, so don't get the wrong ones.

If you want to keep the price down, I'd recommend Burris or Millett rings. Leupold makes them too, but they're pricier. There are cheaper ones, often under $10 - B-square, Barska, etc - but they don't have as good a reputation.

You can also read up on .22 mounting options at the optics forum at rimfirecentral:

http://rimfirecentral.com/forums/forumdisplay.php?f=32

[ck867]

thanks for the info. I'm not sure if I am just not seeing it but I do not see any 3/8" dovetail rings? Can anybody even tell me if 3/8" dovetail rings are the correct size for a marlin 795?

[maxicon]

Any that don't specify 11mm should be 3/8" dovetail. It's the most common plinking size, though higher end European rimfires like the CZ are more likely to use 11mm. It depends on model, though, even across the CZ line.

The Marlin should be 3/8" dovetail. That's pretty much standard for older American rimfire designs. Unfortunately, it's not a very tightly defined spec, and you may have to try a couple of solutions to see what works.

Walmart usually carries inexpensive Weaver brand dovetail rings (not the more expensive Grand Slam), and they're a decent compromise between cost and quality. They're not very heavy duty - the ring top is stamped steel - but the ones I have are two-piece clamps, and they hold most scopes pretty well, though heavier scopes are always a bit more of a challenge.

ETA - I should also point out that many older .22 scopes were odd tube sizes, like 7/8" (Weaver V22) or 3/4" (Tasco RF4X15, which comes with rings pre-installed), so some dovetail rings (also called tip-off rings) come in those sizes. Most modern rings will be 1" or 30mm, but it's good to be aware, especially if you buy online. Not everybody puts the info you need into their ads...

[ck867]

thanks for the info. I will stop by walmart and see what they have.