M305 scope mounts (pics added to post 1)

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cr5

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Just wondering what the guys who scope their M14/M305 are using? I went through 4 pages and didn't find much info so figured I'd start a new thread.
I have an M14.ca CASM gen 2 with a Burris Verocity 4-20×50 on one of my rifles but am not sure how repeatable it is. It's nicely made and finished but the way it mounts to the rear sight ears and teeters with a set screw front and back to adjust cant has me wondering. If I wiggle the scope there is movement, especially up and down with the rail flexing and the front point lifting off the receiver. It seems to hold zero but I just don't know how much I trust it.
My other rifle has a mount that replaces the stripper clip guide and has 2 knobs on the left. This one is not very fancy but seems quite solid. I just have a cheap 3-9 mounted on it for load development and it will be going back to irons when I figure out what load the rifle likes.

So what are you guys using? I want low profile and a solid mounting platform for my scope.

View attachment 92505

I changed to a CTR stock with cheek riser to get a better cheek weld with the scope and added my HERA Arms folder since the pic was taken
View attachment 92504
 
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I would suggest a scout handguard with a crossfire scout scope or trs-25. Allows you to keep the stripper clip functionality and the receiver scope mounts just seem iffy.
 
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When I had the casm I had no play with it. Are you sure you have all screws tight and touching the receiver?

Anyway, I have a sadlak now and I like it.
 
Potato boy said:
If your casm is moving something is wrong. It's a solid mount. All the popular brands are good.
Click to expand...

The instructions say not to tighten the front and rear set screws that adjust the cant more than 1/8 past contact, even with a little more than that if I lift on the objective bell of the scope the front of the mount comes away from the receiver.
Burris XTR rings and Burris 4-20×50 Verocity with 30mm tube, I don't think that it could be anything other than the mount.


Dake21 said:
When I had the casm I had no play with it. Are you sure you have all screws tight and touching the receiver?

Anyway, I have a sadlak now and I like it.
Click to expand...

Who retails Sadlak in Canada?
 
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Arms 18 is pretty much the lowest mount available. It also set the standard to which all other mounts are judged....

Wolverine supplies had stock the last time I checked.

I prefer the Basset machine mount. I can put it on and take it off with ease, swap between rifles for accuracy testing etc. I like M-14 pattern rifles with irons and only use a scope for load testing and testing accuracy potential.

I believe the CASM mount is the least expensive option that actually works.

The Sadlak and SAI mounts are very good as well.

John
 
m14medic.ca said:
Arms 18 is pretty much the lowest mount available. It also set the standard to which all other mounts are judged....

Wolverine supplies had stock the last time I checked.

I prefer the Basset machine mount. I can put it on and take it off with ease, swap between rifles for accuracy testing etc. I like M-14 pattern rifles with irons and only use a scope for load testing and testing accuracy potential.

I believe the CASM mount is the least expensive option that actually works.

The Sadlak and SAI mounts are very good as well.

John
Click to expand...

I'm with John on this one... I am an iron sight shooter but often use the ARMS 18 mount (mainly because we can get them easily from CGN vendors like Wolverine, the EE Forum is great but "hit and miss")











I've heard great things from the CASM mount clients of mine..... :wave:

Barney
 
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Thanks John and Barney,
My newest M14 was modified by the previous owner with Blackfeather stock, Kreiger barrel and a bunch of other go fast goodies, the rear sight was removed for the CASM and not included with the purchase so swapping back to irons isn't an option, I'm ok with that though since my other M14 is lightly modded and sits in a fiberglass USGI stock. I'm just trying to figure out if I need to adjust the CASM a little tighter or look for something more solid.
 
cr5 said:
Thanks John and Barney,
My newest M14 was modified by the previous owner with Blackfeather stock, Kreiger barrel and a bunch of other go fast goodies, the rear sight was removed for the CASM and not included with the purchase so swapping back to irons isn't an option, I'm ok with that though since my other M14 is lightly modded and sits in a fiberglass USGI stock. I'm just trying to figure out if I need to adjust the CASM a little tighter or look for something more solid.
Click to expand...

I would try tightening it up first. Flex is one thing, play is quite another!

If that still doesn't tickle your pickle, try an ARMS 18 mount. It is much more solid. But has no BUIS built into the rail, so you'd be on the hunt for a replacement rear as well as the rail. The value of a used CASM will likely net a Commercial sight, but will fall short of a USGI one. Coupled with the ARMS costing just shy of $300 delivered, you're looking to spend a couple bucks.

All that said, if you don't trust a part that's on your rifle, you won't trust the rifle. Was that flyer me, or the scope or the rifle? Etc, etc....

John
 
I don't feel comfortable with the design of any of the scope mounts except the sadlak. No matter what you choose it's not ideal because of the crappy design of the rifle for mounting scopes.
But the sadlak is by far the most secure and robust design in my opinion.
 
Does the Sadlak mount allow for the use of the standard iron sights?
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Yes, the Sadlak design has a channel to use the iron sights, so you can theoretically use the iron sights with a scope mounted. However, some scopes partially obscure the channel when mounted so there is that issue you have to watch out for.
 
Does anyone recognize the mount on my other rifle in post 1? I bought it from the EE but know nothing about it other than it feels pretty solid. There is a channel under the rail so I could use the irons but it really reduces the fov if you try to use them.
 
I bought my sadlak from their distributor in BC. Yes you can use the irons with it and that's why I sold my CASM and bought the sadlak instead.

Just google sadlak canada and their distributor page comes up on first page first link.
 
cr5 said:
The instructions say not to tighten the front and rear set screws that adjust the cant more than 1/8 past contact, even with a little more than that if I lift on the objective bell of the scope the front of the mount comes away from the receiver.
Click to expand...

But it snaps back once you let go, right?

The aluminum version has some flex to it. The important thing is that it maintains zero from shot to shot, outing to outing
Once those set screws are tightened, the CASM should actually move. I think you are flexing it by pulling up on the bell of your scope. which I don't think you should be doing.

Are you sure you have everything else tightened up properly?
 
Dake21 said:
I bought my sadlak from their distributor in BC. Yes you can use the irons with it and that's why I sold my CASM and bought the sadlak instead.

Just google sadlak canada and their distributor page comes up on first page first link.
Click to expand...

If you're using a cheek riser to use your scope on your M1A, how do you find it affects transitioning to your irons?
 
If this is going on a Norc, I found that at least one of mine has a receiver whose left side (where the scope mount sits) is not quite parallel with the bore of the rifle. It offset the scope enough with an ARMS 18 that I was about a foot left at 50 yards. Some internet digging showed that I was not alone on this. CASM mount solved the problem.
 
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