ipscgraz
CGN Ultra frequent flyer
I started a thread a week or so ago re a Norc scope mount that I could not get to line up with the barrel; rifle was shooting a foot or more to the left at 50 yards. Digging around I found some good info (naturally) including one post that included:
Also found Different's long and informative post re using a Dremel to fine-fit:
"Some commercial M14 receivers may have extra material at the top left hand front corner of the barrel ring. This may interfere with the fit up of the Atlantic Research Marketing Systems # 18 scope mount. Another tip is to use some modeling clay to indicate spots under the mount where the receiver is interfering. Apply a thin layer of modeling clay on the receiver where the mount fits against it. Put talcum powder on the under side of the mount to prevent the clay from adhering to the mount. Fit the mount up moderately snug. Then carefully remove the mount from the receiver. Observe where the mount is contacting the receiver. Using a Dremel tool with a sanding drum, carefully and slowly remove the interfering metal from the scope mount. Go slow. Repeat this procedure until all screws can be properly torqued."
I wasn't looking forward to bubba'ing a brand new $200 mount and I was NOT going to take a dremel to the receiver. I dug around, and measured, and f'd around, with no luck. Mount still looked like this:
Put everything away for a couple of days and thought of how to do this. Hit it with calipers, mics, feeler guages, and then used some nylon cable ties to put a dowel on the rail and another dowel tied to the mount boss that fits into the groove on the left side of the receiver.
Sure enough, the mount is offset from the rail...pushing the scope just a little bit to the left !!!
Ahhh HA!!
Front view
Also found Different's long and informative post re using a Dremel to fine-fit:
"Some commercial M14 receivers may have extra material at the top left hand front corner of the barrel ring. This may interfere with the fit up of the Atlantic Research Marketing Systems # 18 scope mount. Another tip is to use some modeling clay to indicate spots under the mount where the receiver is interfering. Apply a thin layer of modeling clay on the receiver where the mount fits against it. Put talcum powder on the under side of the mount to prevent the clay from adhering to the mount. Fit the mount up moderately snug. Then carefully remove the mount from the receiver. Observe where the mount is contacting the receiver. Using a Dremel tool with a sanding drum, carefully and slowly remove the interfering metal from the scope mount. Go slow. Repeat this procedure until all screws can be properly torqued."
I wasn't looking forward to bubba'ing a brand new $200 mount and I was NOT going to take a dremel to the receiver. I dug around, and measured, and f'd around, with no luck. Mount still looked like this:

Put everything away for a couple of days and thought of how to do this. Hit it with calipers, mics, feeler guages, and then used some nylon cable ties to put a dowel on the rail and another dowel tied to the mount boss that fits into the groove on the left side of the receiver.
Sure enough, the mount is offset from the rail...pushing the scope just a little bit to the left !!!
Ahhh HA!!


Front view
