Gunsmithing Remington action/manners stock conflict

CBeck

Sinister Precision
Full Member
Minuteman
Jun 4, 2013
755
455
NW Georgia
I have a remington 700 aac-sd (like every other guy with a question I know but stay with me here). I have a manners t4 with the mini chassis. When the action is in the stock the barrel isn't center with the barrel channel. It is center when installed in a B&C stock. When I put another barreled action into both stocks the results are the same. The barrel is canted to the left of the barrel channel, still free floated it seems but it's pretty tight on the left side. I've searched and read a ton of threads mostly about bedding/skim bedding because I assumed that would be an easy solution to center the action and barrel. When you look at the wear marks on the under side of the action the right side (ejection port side) the line from the contact with the bedding block runs the length of the action but on the left side it's mainly contacting near the recoil lung and not again until at the tang. The wear marks arent equal distance from the front action screw hole. There is no interference with the trigger or trigger pins. The bolt release rubbed against the block but I took care of that and did not fix the issue. A layer of painters tape under the left side of the action only one inch long starting at the recoil lug centers the action and barrel as it should set. My next step is either going to be skim bedding the action to the bedding block or using spotting compound and remove material until the action and bedding block are mating up properly. Is there anything else I should check before I venture down this road and if not would adding the bedding or removing material be the better solution? Thanks in advance.
 
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Is it possible that the mini-chassis needs to be removed and reinstalled? Does the mini-chassis itself sit squarely in the stock, but the action does not sit squarely in the mini-chassis? How are you torquing the action (step by step) into the stock?
 
The mini chassis appears square to the stock but with the barrel being off center to the channel and the uneven wear marks on the action they can't be mating together square. The recoil lug is factory and isn't perfectly centered but isn't contacting the stock on the sides. I set the action into the stock making sure its slid back. Start the front then rear action screws. Snug them in the same order. Bump the rifle on the rear of the stock. 65 inch pounds on the front. 45 on the rear.

When I start tightening down the front action screw by hand you can watch the barrel pull off center to the left.
 
Is the recoil lug contacting the chassis squarely?

It's not perfect in that the lug doesn't contact the chassis completely, mostly just below the barrel but doesn't seem to be what's throwing the action off center. I'm not sure if you could tell be the picture the difference in the gap on either side. I plan on bedding the lug at least but I wanted to resolve this issue if possible before hand unless this is the only way to solve the issue.
 
I checked the contact between action and bedding block last night by using lipstick. The right side (ejection port side) is making contact the full length of the block. The left side only touches right behind the recoil lug and doesn't make contact again until the tang area. I still can't see anything holding the action off from setting how it should. The recoil lug contact is good.
 
I am going to guess that the lug is slightly tweaked and causing the action to not sit squarely in the chassis. If you don't torque the action, will it contact the whole length of the block?
 
I am going to guess that the lug is slightly tweaked and causing the action to not sit squarely in the chassis. If you don't torque the action, will it contact the whole length of the block?

When the action is seated in the block the barrel sits to the left even before its torqued. If I center the barrel in the channel the action is sitting only on the right side of the bedding block and when the action screws are installed only a few turns by hand pull the action into the block and the barrel goes to the left again. For what it's worth I cleaned the bore completely last weekend, removed the scope and action from the stock multiple times last week and my first 3 shots yesterday were dead on at 100 yards with factory ammo before I ran my OCW tests on a couple loads. It's performing and repeatable which is good but the lack of contact on one side and the off center stance is driving me crazy.
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Maybe this picture shows it a little better. When you slide the barrel to center it up you can feel it "jump" which I assume is the right side of the action riding up the bedding block but I'm about to pull it apart and investigate the recoil lug better. My intentions with this rifle was to build the best possible rifle I could build myself and shoot it until I can out perform the factory barreled action. It sits in the manners T4 with the mini chassis, huber 2 stage trigger, badger base and rings with a nightforce f1. I installed a badger bolt knob myself. I could have went full custom from the start but I love the hands on part and would appreciate the new barrel and trued action more once I've shot the hell out of this one and my ability deserves such. I've tried to eliminate all the weak variables I could and this is the only thing left and it bugs the piss out of me. I appreciate the responses so far.
 
For what it is worth I have had stock remington actions sit square and canted in several HS precision and BC stocks and it never affected how the rifles shot. I agree it might not be aesthetically pleasing but I wouldn't worry about it.

On a side note, did you check the action screw holes to see if one of them was misaligned?
 
I'm not sure why I didn't check this sooner but measuring the best I could with my calipers shows a much easier answer and solution. Measuring the stock width on either side of the barrel channel shows .3750 on the left and .4075 on the right, a difference of .0325. The respective measurements of the clearance between the stock and barrel is .0925 and .0630 with a difference of .0295. The measurements around the action area are more consistent so I guess the barrel inlet is slightly off center? If that's the cases is it safe to assume bedding the action would provide the desired contact with the action but not fix the issue with the barrel alignment?
 
For what it is worth I have had stock remington actions sit square and canted in several HS precision and BC stocks and it never affected how the rifles shot. I agree it might not be aesthetically pleasing but I wouldn't worry about it.

On a side note, did you check the action screw holes to see if one of them was misaligned?

Yeah it does shoot fine and I had a BC stock on it before the manners and it sat perfect in it. The aggravating part is that stock was 1/4 the price of this stock and it doesn't line up as well lol. The action holes are good to go in the receiver.
 
When the action is seated in the block the barrel sits to the left even before its torqued. If I center the barrel in the channel the action is sitting only on the right side of the bedding block and when the action screws are installed only a few turns by hand pull the action into the block and the barrel goes to the left again. For what it's worth I cleaned the bore completely last weekend, removed the scope and action from the stock multiple times last week and my first 3 shots yesterday were dead on at 100 yards with factory ammo before I ran my OCW tests on a couple loads. It's performing and repeatable which is good but the lack of contact on one side and the off center stance is driving me crazy.
View attachment 32964
Maybe this picture shows it a little better. When you slide the barrel to center it up you can feel it "jump" which I assume is the right side of the action riding up the bedding block but I'm about to pull it apart and investigate the recoil lug better. My intentions with this rifle was to build the best possible rifle I could build myself and shoot it until I can out perform the factory barreled action. It sits in the manners T4 with the mini chassis, huber 2 stage trigger, badger base and rings with a nightforce f1. I installed a badger bolt knob myself. I could have went full custom from the start but I love the hands on part and would appreciate the new barrel and trued action more once I've shot the hell out of this one and my ability deserves such. I've tried to eliminate all the weak variables I could and this is the only thing left and it bugs the piss out of me. I appreciate the responses so far.
Hi Qodebebop, It should sit in the chassis and barrel channel straight, you should not have to modify it all. Are you running a Huber trigger? Have you taken the trigger off and bolted the barreled action back in? If the barreled action is sitting straight without the trigger, then the trigger is pushing it to one side. If this is what is going on, then the chassis needs to be modified. The Hubers are very bigger triggers. Send me a PM with your phone number and I will give you a buzz, we will get you fixed up asap. Thank you very much,
 
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skim bed it normally with no stress on the action, i thought the barrel was rubbing on the side or something (before seeing the picture) - just sandpaper around a wood dowel and open that side up for Christ Sake, it's .0295" (eyes rolling)
 
Hi Qodebebop, It should sit in the chassis and barrel channel straight, you should not have to modify it all. Are you running a Huber trigger? Have you taken the trigger off and bolted the barreled action back in? If the barreled action is sitting straight without the trigger, then the trigger is pushing it to one side. If this is what is going on, then the chassis needs to be modified. The Hubers are very bigger triggers. Send me a PM with your phone number and I will give you a buzz, we will get you fixed up asap. Thank you very much,
And this is why I buy Manners! Tom stepped in to fix a Quad stock for me after I bought I from another member and it didn't fit quite right. Second hand and he still offered to fix it