Multiple cracks in Rem Mod 7 stock

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Blue68f100

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This is a old Rem Mod 7 stock that's seen better days. This is a truck gun so it takes a beating. When I got it and removed the action there was NO pillar support. So all the stress was going into the stock. I replaced it with a syn stock but would like to get this repaired. So far I have found 5 cracks, a 1 piece is completely loose.

The large crack with 2 above it.
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This one will open up when the stock is flexed.
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This piece will come out. IMG_3423.jpeg
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Crack on the other side.
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This stock is in bad shape but with GunnyUSMC help I bet it can be saved.
 

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To me, a former furniture-maker, that looks like improperly seasoned lumber, aka "case hardening". Not the same as metal work, but the cause is too-rapid drying of the lumber in a kiln, resulting in internal stresses in the wood. Which eventually appear, and are not repairable. Just trash it, because the problem will never disappear. I have pieces of oak with the same which are 20-plus years old and are only good for kindling. A shame that Remington actually used it.
 
I tend to agree that it is a total loss.

I suppose some time could be bought with some very thin very slow curing epoxy (West System comes to mind), something to spread the cracks out to get the epoxy to work into the cracks, and some surgical tubing to wrap everything back up and hopefully smush all the cracks back together.

Or work on one crack at a time. Care must be taken to be sure all of the same crack is done at the same time though since if one is done partially, the rest of it wont be able to be done properly. It would appear many of the cracks run together though. One crack at a time would be challenging.

After all is said and done a good bedding job with JB weld or Acraglas would go along way to keeping it together longer term.
 
If it is as @beag_nut claims, that is wood that will continue to crack and fragment, then you are out of luck repairing that. I have an older Fajen stock, the wood is brittle, can break it like peanut brittle. Nothing glue wise will fix such a thing.

I am frustrated as the era of the $40.00 laminated stock is over!. Just looked a ebay, the Model 7 stock is not abundant, which is too bad. From what I have read, the M7 is a smaller action than a M700 action, so you are going to have to search the web. Richards Microfit can make you a stock, I have a couple of their stocks, and they are fine. I wish I could have cheeked them before ordering, but such is life. I am impressed with the strength and durability of laminated stocks, so for a user rifle, I think that is the way to go.
 
Like I said in my original post I've already replaced the stock with a syn one. This being a truck gun here in Texas means it's been exposed to extreme heat from being stored inside a locked up truck with the sun beating down on it repeatedly, 130F+ temps.

I have the West system epoxy with fast and slow set hardner, left over from my boat repair. I also have most of the fillers for it too.
 
Looks like the rifle was shot repeatedly with loose action screws in addition to lack of care.
 
Hey there everyone. I’m still camping out at my house, still don’t have power. But I do have a generator to run some fans at night and change my phone and iPad.
That’s enough about me, let’s talk about this stock.
First take a look at the cracks on the left side. They all run with the grain. Now look at the grain pattern, on the left, coming back to the wrist area. You can see that most of it ends right at the top of the wrist and just in front of the checking. The stock was just a bad cut of wood and was prone to breaking the day it left the factory. I have a filling that the left side of the butt took a sharp blow at some time that got this damage started.
These cracks are what I call running cracks. They start at the wrist and tang area and then run along the wood grain to the front.
The good news is that the stock can be repaired. But first the front recoil area needs to be looked at. Once that are is good to go the running cracks can be addressed.
Get some good pics of the inside of the stock at both action screw areas and some nice ones of the recoil lug area. I’ll break the repair down into step that will be easy to follow.
But here’s the basics of the repair.
Make sure that the recoil lug area is solid and not pushed back. Repair any damage in the area and glass bed. Glass bedding can be done after all other repairs are completed.
Next, stabilize the running cracks. This is done by working epoxy resins into the cracks and clamping everything up tight. At the same time holes with need to be drilled from top to bottom on the inside of the stock to cross the cracks. This will need to be done from the rear of the action to just past where the cracks run to the front. Bamboo dowels will need to be put into the holes when the epoxy is put into the cracks.
The inside of the action area may need to be reinforced with fiberglass cloth or mesh. If so, about an 1/8 of an inch of wood will need to be removed and filled with the fiberglass. Then the area will need to be reshaped to fit the action. This can also be done at the same time the action is bedded.
Once the repairs are done the stock will need to be refinished. Saving the checkering and making the stock look good should not be hard.
 
Like I said in my original post I've already replaced the stock with a syn one. This being a truck gun here in Texas means it's been exposed to extreme heat from being stored inside a locked up truck with the sun beating down on it repeatedly, 130F+ temps.

I have the West system epoxy with fast and slow set hardner, left over from my boat repair. I also have most of the fillers for it too.

Ain't Gunny the survivor? Sending you messages even though the Apocalypse hit! His advice is excellent, the real question, how much time do you want to spend on this stock as the number of times you will have to inlet, wait for glue to cure, remove action, then inlet, wait for glue to cure, remove action, etc, etc.

If you use thick enough epoxy layers, you can create a "cradle" for the action. This is more or less what I did for a Rem M700

First, created Bisonite pillars to keep the action true.

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then routed out a god awful amount of wood with a Dremel tool

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Given long drill bits, a two part epoxy that flows like honey, which Bisonite does, you can hollow out a pistol grip from the inside and pour epoxy down the hole, and let cure. But, this assumes the wood on the outside still does not shatter.

Marine stores have some of the best two part epoxies around. Used to haunt the ones around Port Clinton during down periods at the National Matches. I have used a lot of Marine Tex. Devcon makes incredibly hard steel, aluminum, titanium filled two part epoxies, and the Devcon I have used has a peanut butter consistency for the first 20 minutes. Once it hardens, you have to grind it out! The only real downside, is the cost! Bisonite was popular with the Garand and M1a gunsmiths, it poured into the side channels and then, it got thicker, and was still usable a little after that. I think Bisonite was steel filled. It cures glass hard.
 
I'm retired and have plenty of time.. I'm doing this as a learning project. I will get some detail pictures of the inside. From what I have seen this action was not hitting the front impact area, not hardly any marks on it. The wood in front is good, I did a closer inspection looking for cracks this morning. Now the crack on the right side where the bolt hits goes all the way through the checking + 1/4" before it stops. I have plenty of West System Epoxy, approx 1/2 gal with slow and fast set hardner. So I can go from 15-30 min set time to 45-60 min depending on hardner used and temp. I also have the additives used for mounting hardware + chopped glass for thickening. This epoxy will kick over and set fast if it thick w/o any thickening agents added. I had this happen when I mixed some up and did not pour it out soon enough. The nice thing about the west system is that you can do multiple coats and have them bond together as it was 1 pour. I did this on several areas of my boat that required multiple layers of glass, transom and floor. The additive for hardware will be perfect for the pillars, it's almost like liquid steel.
 
West System is the best!

I've used over 11.5 gal rebuilding my boat a couple of years ago. This is the forum that I documented rebuilding my boat from hull up. I did this during the winter where I had to deal with some cold temp, the reason I have 2 different hardners. Which is the main reason for using epoxy, I could use it in cold temps.

https://www.community.boatbuilderce...&t=63799&sid=4e0a3b2c1a5efe5a7e563573230e91a6

So I have a pretty good feel on how this West System Epoxy works.
 
Here are the close up photos of the inside of this stock. I tried enhancing some using alcohol. It did show some areas I was not aware of.

Here is the pillars, nothing really showing here. You can not tell if the front impact support was making any contact. And the holes are off center. The bottom rear front edge is rolled inward at the front pillar. There is a false edge in the magazine box cut out on the right side, ~ 1/32-1/16". This ledge is not present on the left side.

The Big crack on the left side rides on the ledge before coming out at the brass screw.

Front Pillar and support rear view.jpeg Front Pillar and support ft view.jpeg Front Pillar Bottom view.jpeg Rear Pillar Bottom View.jpeg
 

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We assemble/vacuum-bag F3B sailplane wings together using West Systems.
If you've ever seen the stresses of a winch launch of an F3B... you'll believe.
:thumbup:
 
Ok. I don’t see any damage in the recoil lug area that would have caused the stock to crack. And there’s no damage to the tang area that would show that the action was moving around in the stock while it was being fired.
Basically the stock was just cut bad in which the wood grain had no support just forward of the wrist.
I need a couple of pic to mark for repairs. Two from each side. One from the outside and inside of the action area. This will allow me to mark where to drill the holes to help stabilize the stock.
Here are some pics of a similar repair.
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I'm not sure your seeing the crack around the rear mounting hole. Here are some pictures highlighting the crack as it travels around. The hole is broken out in the thin section ad you can see the crack. This is the lower crack on the outside. I'm going to put pillars in so the broke piece around the hole is all going to be remove, replaced with Filled Epoxy.

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I see some very thin areas to be drilling down into.

If I need to go through the bottom outside, it is what it is. Appearance takes second fiddle to function.
 
Well, at the very least you will learn from your efforts. Me, I would simply trash the wood. If the case hardening is extensive enough, other areas will fail when they take up the strain. Then again, you could sell it before subjecting to further firings. One learns from both successes and failures.
 
Alright. I got power back up last night, so everything is good here.
The first step in the repair is to stabilize the cracks. This is done by getting epoxy into the cracks and clamping everything up tight. You want to set up your clamps and test them to make sure that they will hold. Surgical tubing does work but not in all applications. Cut you some strips of wood about 1/4” thick 1” wide and 4” long. These are used to lay across the top and bottom, and sometimes sides, of the stock to give you a place to put your clamps. Wax paper is wrapped on the wood strips so that they don’t get stuck to the stock.
Here are a few examples of using strips of wood to clamp a stock.
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Once you have you clamps set up the way you will use them, it’s time to drill some holes in the stock.
This will allow for two things. One is to get epoxy into some areas and the other is to place reinforcement dowels into the stock. Some areas you will not be able to just drill straight into. As in this pic. Here you start drilling at an angle and slowly straighten the drill as you drill. You can see that there’s a clamp holding the crack closed. This is to keep wood chips out of the crack.
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Choosing drill bit size. This is easy, choice the largest drill bit that will work for the area.
I have to take care of a few things around here and go get my grandson. I’ll try and post pics of where you should drill into your stock later today.
 
Glad to hear you go power back on.

I've been playing around with clamps. Need to cut some wood strip. I'm assuming to wax the surfaces to make it easy cleanup. Even though I need to refinish the stock. What the best way to protect the checkering?

There is nothing like starting off with a severely damage one to learn on.

Going crappie fishing tonight.
 
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Applying a paste wax to the surface of the stock does make cleanup a lot easier. Use an old toothbrush to apply wax in the checkering. Just be careful, you don’t want to get wax in the cracks.
 
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