Bedding causing horizontal stringing?

coyoteking

coyoteking

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I have a Remington 783 in 223 that I recently put a Boyd’s At one stock on. With the factory synthetic stock (which was epoxy bedded by the previous owner) I was consistently shooting .35 moa groups. I epoxy bedded the new Boyd’s stock from the barrel nut back to the tang. My first few groups with my hand loads immediately showed horizontal stringing of 1 moa or more, but no vertical dispersion at all. Each group would string left to right.

Today I decided to re-work my load. I tried 5 different powder charges in .2 grain increments and each group displayed the same left to right horizontal string.

Did I mess up my bedding job? Should I maybe have not bedded the barrel nut? The barrel is fully free floated and I have the front take down screw torqued to 40 lbs and the rear screw torqued to 30 lbs which is the same as I had them on the original plastic stock.
 
I was consistently shooting .35 moa groups
why the heck even bother think you will be able to shrink the group to .25 moa?
i would not have done anything to the rifle and left it AS-IS
 
Float everything from the action forward... and the action should be bedded stress free... no screw pressure at all while it is curing... the front, sides and bottom of the recoil lug should have clearance. I do that with a layer of masking tape before release agent (paste wax) is applied. The bedding can be a little as you want... just a little of the front of the receiver and lug... and a little at the rear screw... often less is better than more. and I can't stress enough about no stress bedding...
 
IvoB said:
I was consistently shooting .35 moa groups
why the heck even bother think you will be able to shrink the group to .25 moa?
i would not have done anything to the rifle and left it AS-IS
Click to expand...

The factory stock can always go back on if need be. I wanted something a little stiffer with a better fit.
 
guntech said:
Float everything from the action forward... and the action should be bedded stress free... no screw pressure at all while it is curing... the front, sides and bottom of the recoil lug should have clearance. I do that with a layer of masking tape before release agent (paste wax) is applied. The bedding can be a little as you want... just a little of the front of the receiver and lug... and a little at the rear screw... often less is better than more. and I can't stress enough about no stress bedding...
Click to expand...

That’s exactly how I’ve done all my bedding jobs, with great success to this point.

I have a Savage that didn’t show much improvement from glass bedding (groups shrunk from 1 -1/2” to 1 1/4”), on that rifle I also bedded the barrel nut, I think I may have to revisit that project as well.
 
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