I have been looking into pillar and glass bedding a Winchester model 70. I have been looking at and reading about tools and technique and stuff. there is a jig for drilling holes for the Remington 700s but I can't find anything even similar for the model 70. Any insight?
Gunsmithing bedding Winchester Model 70
- Thread starter DragonSlayer28
- Start date
that's a good question that I had not bothered to ponder. thanks for the thinking point!
Be careful when ordering pillars. They tend to come equal length and with no angles. It's expected that you trim them to length and cut the correct angle.
Otherwise,
It's not much different than a Remington, but the differences are important.
Winchester and FN SPR bottom metals are angled relative to the receiver. To do it correctly, the front and rear pillars are different lengths, and have an angle.
I don't remember the exact angle, but I have a solid mode saved for future reference.
This is a drawing I created when i pillar bedded an SPR short action with a factory TBM bottom metal in a Manners Stock.
I didn't have, nor could I find any info whatsoever on how to dimension a set of pillars for the TBM. I basically had to mock it up, measure, machine the pillars, then mount the bottom metal and test feed from the mag. The stock wasn't inletted for the TBM either. I had to write a cnc program for the inlet.
It's been running good for over a year. The rounds feed smooth and easy.
Otherwise,
It's not much different than a Remington, but the differences are important.
Winchester and FN SPR bottom metals are angled relative to the receiver. To do it correctly, the front and rear pillars are different lengths, and have an angle.
I don't remember the exact angle, but I have a solid mode saved for future reference.
This is a drawing I created when i pillar bedded an SPR short action with a factory TBM bottom metal in a Manners Stock.
I didn't have, nor could I find any info whatsoever on how to dimension a set of pillars for the TBM. I basically had to mock it up, measure, machine the pillars, then mount the bottom metal and test feed from the mag. The stock wasn't inletted for the TBM either. I had to write a cnc program for the inlet.
It's been running good for over a year. The rounds feed smooth and easy.
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Actions with flat sides are more challenging to do well. They are more prone to porosity issues when the receiver is set in place as air has a lot more work to do if it is going to be able to escape up the sidewalls and out the top.
Next, you'll find they take a whole lot more grunt to get them out of the stock once it cures. To help curb this, using some mylar tape along the sides of the receiver is never a bad thing. leave the tang portion alone, just mask off the sides of the magazine box, sides of the recoil lug, and the face of the receiver. This won't make it easier to remove the very first time when you are tearing it all down, but the follow-up assembly/maintenance routines will go much nicer. The added clearance has never shown itself to hurt performance on any of the Winnie's I've built over the last 20 years.
Our blueprinting process on Win M70's machines the entire bottom of the receiver flat and contours the recoil lug on the corners and the face. It's known that actions should be removed "straight up" when pulling them from a stock. The M70 makes this tough due to the side walls. I put a 3* draft angle on the forward side of the recoil lug to reduce the amount of potential damage to the forward side of the lug well.
Hope this helps.
C.
Next, you'll find they take a whole lot more grunt to get them out of the stock once it cures. To help curb this, using some mylar tape along the sides of the receiver is never a bad thing. leave the tang portion alone, just mask off the sides of the magazine box, sides of the recoil lug, and the face of the receiver. This won't make it easier to remove the very first time when you are tearing it all down, but the follow-up assembly/maintenance routines will go much nicer. The added clearance has never shown itself to hurt performance on any of the Winnie's I've built over the last 20 years.
Our blueprinting process on Win M70's machines the entire bottom of the receiver flat and contours the recoil lug on the corners and the face. It's known that actions should be removed "straight up" when pulling them from a stock. The M70 makes this tough due to the side walls. I put a 3* draft angle on the forward side of the recoil lug to reduce the amount of potential damage to the forward side of the lug well.
Hope this helps.
C.
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