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  #1  
Old 11-26-2013, 01:38 PM
kevink
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Remington 121 Scope Mount - Help Needed



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I have a Remington 121 that has been in the family for awhile. When I got it, it was rusted and half of the buttstock was missing. So, I am in the process of refinishing it.

The gun is drilled and tapped on the side for a side scope mount. The distance between the two holes is 3.1" CTC. Does anyone know what side mount I should be looking for? The old weavers side mounts on eBay do not have the correct hole spacing. Thanks in advance.

My plan is to find an older weaver or similar 4 power scope to put on it.

Kevin
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  #2  
Old 11-26-2013, 02:18 PM
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edlmann
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Quote:
Originally Posted by kevink View Post
I have a Remington 121 that has been in the family for awhile. When I got it, it was rusted and half of the buttstock was missing. So, I am in the process of refinishing it.
The gun is drilled and tapped on the side for a side scope mount. The distance between the two holes is 3.1" CTC. Does anyone know what side mount I should be looking for?
Dunno about the spacing, but the #2 Weaver side mount base fits the following:

Quote:
Originally Posted by Brownells
#2 Side Mount Base fit Cooey 60,600; H&R Models 65,165,150,151,250,251,264,265,365,450,550,755,765 ,852; Krag; Marlin A1,50,39A ROUND BARREL,80,81,88,89,98; Mossberg 25,26,35,40,42-46,46A,46B,46M,140,142,144,146,468T; Remington model 10,11,12,12A,25,33,34,41,121,341,513S,513T,514; Savage Models 3-7,19,23,40,45,219; Stevens Models 26,53,56,57,66,76,85,416,417,418,762,872; Stevens-Springfield Models 83, 872; Winchester Models 03,42,47,52,57,61,63,69,69A,72,74,75,77; ZB 22; Shotguns Win. 42 Pump. [Emphasis Added]


Details here.

If the existing holes don't line up, redrill - it's aluminum.
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Old 11-26-2013, 02:58 PM
kevink
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Remington 121 Scope Mount

Thanks, Edlmann for the info on the Weaver #2 base. Unfortunately, when I spoke to the Brownells Gun Tech he informed me that my hole spacing does not match the pre-drilled holes in that base.

I still want to know what scope mount my rifle was drilled to fit, at least then I'd know what to look for on the internet.

Kevin
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  #4  
Old 11-26-2013, 04:50 PM
grandparem
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I've run into this before, and it's belief that the newer N mount Weaver is not the same as the old mount. Also some of my research indicates there might have been a change where model 12s and early 121s were different than later 121s after about s/n 45,000. By far, most 121s would be the later type.
Another company, maybe Pachmayr, made a swing off side mount so open sights could also be used, but do not know if they made one that fit a 121.
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  #5  
Old 11-26-2013, 08:16 PM
steve99f
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It may be an Echo mount.

Chances are that your rfile originally had a 3/4 inch diamter scope tube. You should consider what you want to do scopewise and go from there. The Weaver rail previously posted is the only good option for putting a 1 inch scope on your 121 without drilling more holes in the gun.
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  #6  
Old 11-26-2013, 10:07 PM
454ho

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Quote:
Originally Posted by grandparem View Post
I've run into this before, and it's belief that the newer N mount Weaver is not the same as the old mount.
The new Weaver 'detachable' side mount IS the same hole pattern as the N2 and N3 mounts of yesteryear. I know so because I have replaced N2/N3 mounts with the new Weaver mount. All 4 holes line up perfectly..... that is IF the rifle was drilled properly in the first place.

I suspect the mount the OP is looking for is prior to the N2/N3 series of mounts. I have seen reference that some Remington rimfire models were offered with the Weaver 344 scope from the factory. The research I did on that scope brought up some photos of side mounts with only 2 mounting holes. Not sure if any of these are appropriate to a Rem 121, but some numbers to look for would be S2, S3 and T03.
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Old 11-27-2013, 07:02 AM
kevink
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I googled the echo mount and did not find anything that looked like it would match my hole spacing.

I also googled the weaver s2,s3, and t04 mounts. Again, I did not find anything that matched my hole spacing. Weaver may have changed designations because the s2 and s3 search brought up shotgun mounts.

I will look some more for each of the mounts mentioned. Do you guys have any photos of any of the mounts?

If you think it will help, I can post a photo of the side of my receiver with the holes.

Kevin
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  #8  
Old 11-27-2013, 08:56 AM
454ho

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You'll probably have better luck searching eBay. Search for the 344, B4, C4 etc scopes, a lot of times the seller is including a mount. You may get lucky and find one that may fit... and you can always ask the seller to measure the hole spacing before you bid.

Here are some examples...

weaver 344 with t1 mount

weaver 344 with t2 mount

weaver 344 with t03 mount

weaver s2

Looks like the s2 has 2-3/8" hole spacing, probably not the one you need.

Good luck in your search.
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  #9  
Old 11-27-2013, 10:17 AM
kevink
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Thanks, 454ho. I looked at the links and the T2 looks promising. The other mounts appear to be barrel side mounts?? Basing that assessment because they appeared to be curved.

Your idea to look for scopes is really good. I had not thought of that. I'll do some searching for older scopes and see if any have the mount I need. I'd still like to know what mount I should be looking for to fit the rifle. My guess is all the old references are no longer available.

I have included a pic of my receiver with the two scope mount holes. Perhaps that will help with identifying the mount.



Kevin
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  #10  
Old 11-27-2013, 07:30 PM
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Quote:
Originally Posted by kevink View Post
You may have a larger issue with the hole infringing on the last digit of the serial number.
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  #11  
Old 11-27-2013, 09:20 PM
454ho

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Quote:
Originally Posted by kevink View Post
I have included a pic of my receiver with the two scope mount holes.
Someone please smack me upside the head... for some reason I had it in my mind your were dealing with a tube style receiver. Maybe because that is what all my old Remingtons are. Oh well, forget everything I said regarding the N mounts.... totally irrelevant.

Anyway, good luck with your search and let us know what you find.
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  #12  
Old 11-28-2013, 12:23 AM
454ho

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got it this time

I'm betting this is the mount you are looking for -





Unfortunately the listing for this rifle is expired and all that is left in cyberspace are these photos. But it is proof that one exists!!
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  #13  
Old 11-28-2013, 07:47 AM
kevink
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Yes! That appears to be the mount that would work for my hole spacing. I wish their was some way to contact the owner to see what type of mount is on the rifle. Also, when you look at the photos does the mount look like it has two additional mount holes and screws? Might just be my eyes fooling me. Regardless, I would only use the two holes that are already drilled and tapped.

It is actually nice to see that their is a mount that appears to fit. I was starting to wonder if the holes were for some other purpose....

Let me know if you find any other leads on the scope mount. This one is still a mystery, but at least we know it exists. My search continues..........

Kevin
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  #14  
Old 11-28-2013, 11:01 AM
choppermitt
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Hello Kevin,
My 121 has a scope mount on it that may be what you're looking for...the only marks on the mount are 'N5', and it has four mounting holes, but the outer two are 3.1" apart.
Here it is on my 121...
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  #15  
Old 11-28-2013, 09:24 PM
kevink
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Thanks, choppermitt!! I think that is it. I will look for that mount online. What is the diameter of your scope?

Thanks,
Kevin
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