Finally scoped my M14...Massive Dissappointment

[factionrr]

I looked at the CASM mount with the little peep hole in the back for irons, but doesn't this mount limit you to red dots and smallish scopes? What if I want to run some serious business up top like a super sniper elite 10x fixed or a 3-12 bushnell elite IR mildot

What's a 30moa rake? Is that like a tactical garden tool?

There are 2 versions of the CASM mount. The one you are thinking of is the CASM RD mount.

The CASM Gen 2 mount is a full length picatinny rail that will suite almost any style optic

Images stolen from M14.ca

 

[Rocket Surgery]

Whoa I guess I don't have to ask for the catalogue now

 

[Grizzlypeg]

Looks like a great design. I wish you had this out years ago.

 

[factionrr]

My first experience with this mount was only yesterday and I have nothing but great things to say about it. And you have to love thats its made in Canada. Franks a great guy too.

 

[Dweano]

Wowie. Thank you all for replying. I hope I can eventually get this thing scoped so I can shoot longer range. After all, I do live on the prairies and can shoot as far as I want...might as well take advantage of what I have been blessed with

pull the casm mount off and look closely at the machining of the sight pocket itself . the machining on my norc caused the casm mount to be misaligned. the problem will be apparent in the very front of the sight pocket

Yep I think I will take the mount off and do that. Maybe even post some pictures up for the more experienced members to see what they think. I am guessing this is my problem. I do not believe the CASM mount to be the problem as it appeared to be nicely machined, precise, etc

If you don't boresight, chances are you will be off paper. Use a small mirror.

I had never thought of using a small mirror. I will keep that trick in mind. Thanks!

I bought this same scope mount for my norc m14 and i had the same problem. I don't however blame the product as it seemed very good quality. Just to get it even close to straight i had to do some major screwing around with the screws and it still was never straight. I think the pocket itself is bent.

In the end i just went back to open sights.

I would kind of prefer not going back to open sights as I am not very good at them also I feel like with a 308 chambered rifle it should be stretched out. Shooting short range with irons (which is just applicable to me, I know many people are capable of longer ranges with irons) seems like something I could do with...say a 223 or 7.62x39mm. My M14 sits in the safe and says...let me play! Let me stretch my legs! Haha

Yer playing with fire when you try and correct a receiver machining flaw in the scope mount pocket. The "floor" of the sight pocket is one of the thinnest areas of steel on the receiver. Any removal of material in there and your receiver should be re hardened. Long and short, for those with this issue, use a different mount.

If I cannot solve this issue with the CASM mount I believe I would try to get a different mount. I do not want to do any machining and modifying of the reciever really. I do not have the $$$

Just curious, was it a Gen I or a GEN II

Gen II from the newest batch, just got it the day I put it on

My money is an out of spec sight pocket......

Mine too unfortunately

Dweano, if you'd like to go over the installation of the M14.ca CASM GEN II scope mount to make sure things are 100%, I am available 7 days a week.

Regarding the ARMS18 vs CASM comments: the ARMS18 is a good scope mount, but as any professional gunsmith knows, the ARM18 can have complicated, time-consuming and potentially costly installation issues.

The CASM series GEN II scope mount requires "0" gunsmithing, sets up quickly and can cost up to half that of an ARMS18. For example, in Canada, the CASM GEN II is priced approx. $70 lower after tax than an ARMS18. For former/current military and law enforcement, the CASM scope mount is approx. $110 lower than the ARMS18.

From one of the CASM GEN II's most recent reviews, the author writes:
"...the hits on target at that distance was consistent and multiple groups hovered at 1 MOA. The rifle was allowed to cool to test for cold bore repeatability of the mount and as the picture shows the mount is absolutely solid with no shift in POI with the cold bore shot. The rifle was also tested at 750 yards and rapid fire strings were done to check for wandering zero or POI stringing and none was present. Throughout the day groups were tested between the two distances and the results were absolutely consistent with 200 rounds of the same lot of ammo tested. Without a doubt, this is one of the most secure, reliable and consistentent non-permanent bolt on m14 scope mounts on the market today."

Thanks Frank! I and many other really do appreciate your customer service and dedication. I believe I followed the installation 100% though, I read the manual and watched the video on youtube, I then rewatched the video and followed it step by step as I was installing it. The only thing I can think of is that I believe my mount is pointing slightly to the left (which as I am writing this out...doesn't make sense because I was hitting to the right...optics confuse me) and the instructions say tighten the left side first and then the right side. I could reinstall it and tighten the right side first maybe?

About two years ago, I had an issue in mounting my scope. Cheap mount (NC Star). Anyways, before scope was even mounted I could clearly see that the mount was not centered on the bore, nor was it parallel to the bore...I used a long broom handle to confirm this.

Had to shim, just like the Sadlak mounts. Once mounted correctly, mine was a shooter. Heavy, but still a shooter.

I removed scope because I refuse to lug around a 12 lb rifle.

Yep I will be doing the broom handle trick in just a bit and posting pictures, that should help me figure some things out. I really want mine to be a shooter as well I will say that the gun with the bipod and scope on it is quite a beast. But hey...Ill get a workout everytime I shoot. Two birds with one stone

Great advice on this thread. The CASM i can assure you won't be the problem. The word tasco makes me cringe lol but if your on a budget I fully understand. Shims may be your solution here. Try asking someone you know to borrow there decent scope for a afternoon at the range maybe? Place it on and shoot at 25m ONLY. Then once that scope gives you a indication of what's going on, you can start troubleshooting the issues and striking off what is causing them. Just a idea. Hope it all works out for you OP!

I am not worried about the CASM either, scope...possibly, broom trick should rule that out tho. I may have to look into a different scope tho if the broom trick says everything is straight tho. That is still a possibility (hopefully actually) 25m will be the starting sight in when I get this all sorted out

The casm does fit in it's own niche, and for some shooters with certain load out requirements, it might be the perfect solution for that shooter. But for those guys with sight pocket deformaties, I'd recommend a different mount over altering the receiver to fit the casm.

Yeah if pocket deformity is the problem I will be getting a different mount...maybe even selling the gun to someone who likes irons. I am going to school soon so I wont have tons of time to mess around or tons of money to spend or time to shoot unfortunately haha.

You need to adjust the back mount where the stripper clip guide used to be, it's too far to the left. Maybe you found it, havnt read the rest. But I had the same issue and that fixed it.

What? I still have the stripper clip guide

Maybe. If the positioning of the crosshairs is not in line with the axis of the tube, the POI could be way off - but not be moving around. Also, he can't tell if it's moving around since he can't get on paper.



Agreed. A laser boresighter will pay for itself in terms of ammo and cursing.

I should really get a laser boresighter, that would be very helpful...I dunno if that will end up happening tho

There can be some real subtle details to installing some of these scope mounts. Small details that make all the difference in the world. If I were you, I'd carefully go over the install instructions another time, repeat the procedure, paying attention to any part of the process that might be misaligning the mount.

That too is another option. Take off the mount. Do it again...maybe have different results?

I fought with the arms mount tbh, which is why I eventually sold it and am giving the casm a try.

I did not find anything about "fixing" the arms alignment issue until I had sold it.
Ie. new screw, removing washer, etc.
it frustrated me to no end, knowing everything was out of wack.

after all, many said you should spend a fair amount of money for a decent scope mount...

I am interested to see what the CASM can offer me.

Mine may be for sale if it doesn't work for me

One question I have tho, I blue loctited everything. The instructions say it can be removed with hand tools, but will it leave stuff behind inside the mount that will cause problems? I know red stuff leaves behind gunk. I had another question but I forgot it...ah well. I am sure it will come back...off to find a broom!

Thanks again for all the replies guys

 

[Dweano]

Hmm...who would've thought that its hard to find a piece of 1 inch thick straight stuff. Turns out our broom is less than an inch. But...I did put the rings back on opposite (flipped from how I had them on with the scope) and when our small broom was in there it seemed straight. Might be as simple as crappy rings?! I'll keep looking for something better and/or go to town and get some dowel

 

[JRW (QOR)]

Hmm...who would've thought that its hard to find a piece of 1 inch thick straight stuff. Turns out our broom is less than an inch. But...I did put the rings back on opposite (flipped from how I had them on with the scope) and when our small broom was in there it seemed straight. Might be as simple as crappy rings?! I'll keep looking for something better and/or go to town and get some dowel

My guess it is the mount not the scope. Take the scope off the rail. Take a 2-3ft length of copper water pipe and lay it on top of the rail. It should match the barrel, if it is off to the right, the mount is off. I'm not familiar with that type of mount, it doesnt have an attachment to the clip guide? The clip guide on mine had to be removed, part of the mount slides into the grove. The mount then screws into that. Moving it left or right aligns the entire mount. There must be something with your mount that would do the same.

BTW, my mount is a McCann Industries. I've tried 4 types, including the AIMS, the McCann is the best in my opinion.

EDIT: Saw the pic of the mount above, yeah I know this but did not try it. The back end that secures where the peep sight was needs to move to the right, rotating the mount.

 

[Dweano]

Hey guys I finally got a piece of wood and laid it on the rings...here is the pics. As you can see it doesn't look exactly centered. I am not sure if I did this right. If anyone has suggestions of how to make sure everything is all done right then I would appreciate it. I am still a newb

Then my unscientific string hang method:

Well what do you think guys? Reinstall mount and see if that helps?

 

[Grizzlypeg]

I think I'd be looking at an overhead view to see if they are parallel, not looking to see if the ends line up. It's far easier to spot parallel than anything else.

 

[Dweano]

I'd have to make sure things are flat then eh? How should I do that? Make sure the rings are level...assuming they are perpendicular to the bore?

 

[Roughneck12]

I would imagine if the dowel is sitting in the rings, level or not, it will be apparent.

 

[Dweano]

Well to me it looks slightly off at the end of the barrel. Which translate to very off 100 yards later haha

 

[Roughneck12]

Yup, that would do it. Try re assembling everything and all the variations.

 

[Juster]

Loonie store mirror, 7 years bad luck, glue a shard to a spent case, rest it on the mag follower. More accurate than the brush handle.
Jiggle rings and mount screws until crosshairs agree with the bore. No big problem here, I would do this with any scope/rings/mount.
Shim with a bit of cola can if you absolutely have to.
(A laser boresiter would have to be of the in-chamber kind, the flashider may be off.)

 

[Dweano]

Phew...busy wedding and weddings and etc etc. Anyways I finally got around to taking off the mount. Here is some pictures of the sight pocket. Looks normal to me and you probably can't tell anything without some sort of precision tool...but here is the pictures anyways:

Also here is a video of the mount loose in the pocket (the two side screws in but not tightened) I can move ...it left and right. It appears to me if I could keep the mount to the right extreme of the movement range (top/up of the screen in the video) it would be very close. However when I tighten either screw it sucks it to the left side of the movement range...so...out of spec sight pocket it seems like? Should I just sell this mount and try a different mount that doesn't use the sight pocket?

 

[Grizzlypeg]

Can a shim be placed somewhere to hold it in the desired position? A thin washer so that its captured?

 

[Dweano]

It would have to be quite thin. Even then that...might work? I am not sure if the right end of the range of movement is even correct. It just was a move in the right (haha...get it) direction because the mount pointed left

 

[Longshot84]

Dweano, did you resolve the problem? I'd be interested to know what the source of the problem was.

Cheers

 

[Dweano]

I did not. I have been quite busy the past couple weeks. This reminds me, I never did mail back the CASM mount....Frank I didn't forget! I just sighted in my sights and stuff at an M14 Clinic so I don't really wanna take them apart and mess things up. I will send back the mount and see what Frank says. I am guessing I will have to go with a different style mount because my pocket is outta spec, Promag Arms copy I believe, if anyone wants to trade one of those for a CASM let me know

 

[Rocket Surgery]

Don't give up brah, call Frank, I'm sure he'll want to know about any issues installing his products. One thing I have learned about working in the software industry, you want to hear everything your customers have to say because it's impossible to QA your product on every type of hardware out there. The more trouble tickets you can submit to the engineers, the better.