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Fitting butt plate

So my stock has shrunk after I refinished it with a boiled linseed oil finish. The butt plate is now oversized by almost 1/4”. I’m hesitant to file the brass butt plate to fit thinking the wood stock may return to it’s previous size over time. If this happens, the butt plate would be undersized. With the wood being completely sealed (including the milled out pockets) with multiple coats of boiled linseed oil, is the stock likely to expand back to its previous size? 22E09D8A-D85F-44B9-A423-6E1A3221E795.jpeg
 
So my stock has shrunk after I refinished it with a boiled linseed oil finish. The butt plate is now oversized by almost 1/4”. I’m hesitant to file the brass butt plate to fit thinking the wood stock may return to it’s previous size over time. If this happens, the butt plate would be undersized. With the wood being completely sealed (including the milled out pockets) with multiple coats of boiled linseed oil, is the stock likely to expand back to its previous size? View attachment 1245363

You state that you "refinished" the stock. Did you sand the stock before you put boiled linseed (BLO) on it?

If you sanded the stock, did you check the fit of the butt plate before you applied the BLO?

Sorry to tell you but BLO will not seal wood. It didn't seal wood when it was put in paint a hundred years ago and the manufacturers haven't changed the chemistry since then.

It will allow moisture to soak in, if the wood is dryer than the outside air, and it will allow moisture to escape if the outside air is dryer than the wood.

The amount the wood has shrunk seems excessive to me. If the metal fit before applying BLO, then the stock was obviously very wet. Hard to imagine with the inletting that is also in the side of the butt stock.

In my opinion, I would make sure the stock has stabilized in moisture content (and size) before doing anything to the plate.

Jim
 
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You state that you "refinished" the stock. Did you sand the stock before you put boiled linseed (BLO) on it?

If you sanded the stock, did you check the fit of the butt plate before you applied the BLO?

Sorry to tell you but BLO will not seal wood. It didn't seal wood when it was put in paint a hundred years ago and the manufacturers haven't changed the chemistry since then.

It will allow moisture to soak in, if the wood is dryer than the outside air, and it will allow moisture to escape if the outside air is dryer than the wood.

The amount the wood has shrunk seems excessive to me. If the metal fit before applying BLO, then the stock was obviously very wet. Hard to imagine with the inletting that is also in the side of the butt stock.

In my opinion, I would make sure the stock has stabilized in moisture content (and size) before doing anything to the plate.

Jim
I did strip, sand and then dye the wood before applying the BLO. I did not check the fit of the butt plate during this process. Definitely going to during my next restoration though.
 
I was wondering about Moisture as well. That's an excessive amount of shrinkage.
It certainly seems excessive to me as well. I’m just curious how long I should wait for the woods moisture content to stabilize before proceeding with fitting the brass to the stock
 
What else no longer fits? If it was wood shrinkage, the whole stock would have shrunk a proportional amount. I am guessing you removed that much wood in your restoration. If that is true, go ahead and file away on the buttplate.
 
That does not look to be all from wood shrinkage. When working on a stock like that, where it won't hurt to polish the furniture, I would leave the buttplate and patch box in place during sanding. No matter what finish is used, water can penetrate it. Linseed oil practically invited it in. My thought is that you will have to plug and re-drill the lower screw hole in the stock (because I'll bet it doesn't line up), screw the plate on, pick up your file, and get to work. WH
 
What else no longer fits? If it was wood shrinkage, the whole stock would have shrunk a proportional amount. I am guessing you removed that much wood in your restoration. If that is true, go ahead and file away on the buttplate.
I removed the finish only. There was only a few dings I had to steam out, so there was no reason to get carried away with the sanding. Everything else fits, although its pretty tight, so not much to worry about there. Just the butt plate. The butt stock is the largest bit of wood on the stock, so it kinda makes sense to see the largest dimensional change happen there, but I did not expect to see that much of a change.
 
You wouldnt have done something like grab another buttplate off a different gun would you? Look at the slot milled on the side. The wood has moved different directions
 
You wouldnt have done something like grab another buttplate off a different gun would you? Look at the slot milled on the side. The wood has moved different directions
Wish this was the case. If I lined the notches up, it would show an equal gap on both the top and bottom of the butt plate. I just have it pushed all the way down in the photo.
 
I did strip, sand and then dye the wood before applying the BLO. I did not check the fit of the butt plate during this process. Definitely going to during my next restoration though.
Wish this was the case. If I lined the notches up, it would show an equal gap on both the top and bottom of the butt plate. I just have it pushed all the way down in the photo.

Before you start the next restoration, may I offer some suggestions on fixing this one.

IF the wood was that wet that it shrunk that much, you have to wait until the wood stabilizes. One way is to make careful measurements with a caliper/micrometer. The measurements are made and logged until the measurements don't change anymore. During that time you can decide what you want to do, if anything.

You have a bad situation in that the plate has a horizontal toe extension, and it doesn't fit anymore. In my opinion and experience there are three options. One is eliminate the extension, and the other is adding wood or (3) brass to the bottom of the toe to make up the difference.

Eliminate the extension: I don't have the parts in front of me to look at, but can the extension that passes forward under the toe be eliminated and the remaining plate shaped to the new shape of the butt stock? If so, this fix would likely be the easiest and cause the least frustration.

Adding wood: I have made many repairs to stocks by cutting or carving wood out, and carefully fitting in pieces of the same stock material to build up the area, then shaping to fit, and refinish. If you brought the stock to me, I may cut the bottom of the stock off, parallel with the top, and glue the appropriate wood on, and shape so the butt plate drops down and fits again. Then the sides can be trimmed and polished to the stock. The issue with this fix is that it's treated with BLO, and depending on how much it has soaked into the wood, the glue may not hold.

Adding brass: I don't know how handy you are, but if you are going to be refinishing stocks with brass furniture, you might have to learn to work with it. Measure the difference between the stock and the horizontal plate extension, and get a piece of brass the thickness of that measurement, and make a decorative "clasp" to take up the length and thickness. It would be shaped like a "U", taller in the back, by the plate, and tapered towards the front. Shape it to fit the stock, and the butt plate extension would "piggy back" on top of it. If the bottom of the toe is flat, maybe just adding a flat piece of brass to it, to take up the difference.

Jim
 
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