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Bad bedding porn

 
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  #8  
Old 03-20-2010, 08:41 PM
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Re: Bad bedding porn

OK, with a Dremel and a shop vac I was able to remove most of it. I'll have to go back with a smaller tip to do the nooks and crannies.

The previous "gunsmith" must have Dremeled out some of the edge, as there was not paint between most of the material and the stock. I'm now down to the "hard foam" that must constitute most of the material of a B&C stock.

So Chad, what material is used in this picture below? Devcon HVAC? And is that different than 10110?
Or do you have any clue what is in the bottom picture of my original post?

(If you don't want to say, please PM me).

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  #9  
Old 03-20-2010, 09:16 PM
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Re: Bad bedding porn

Your stock, taking a wild guess looked like it could have been done with 5 min epoxy, cream color. I use it alot to f ix holes in travertine tile or use stain and clear and fill holes in hardwood furniture or knot holes, works great on knot holes
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  #10  
Old 03-20-2010, 10:47 PM
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Re: Bad bedding porn

I've used a woodcarving chisel a 1" to 1 1/2" bent gouge does well to remove but be careful not to dig into the wood.
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  #11  
Old 03-21-2010, 01:26 AM
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Re: Bad bedding porn

Chas,

A good resin system used to bed a rifle should have the following:

1. A long pot life or "open clamp time"
2. A high shore hardness
3. Minimal shrinkage
4. High resistance to acids/alkalies
5. Low to medium viscosity prior to curing
6. High compression strength
7. High shear strength
8. A relatively high percentage of solids
9. Easy to mix, I prefer 1:1 volume ratios over having to weigh everything out as that gets to be a pain in the rear end
10. Free machining once cured

The most important thing is picking one type and sticking with it. It's the ONLY way to learn all its quirks and habits. Over time you'll learn to pay attention to things like ambient temp and humidity as they have a big influence on curing.

I used to use an Acraglass concoction and it worked great for a number of years. We had sky lights in the shop in CO and I was bedding a gun one afternoon and the sun cooked my batch as it sat piled on my glass plate. Experience is never cheap! What a mess! I had to clean out the inlet, machine the fungus out, and then start all over. At least I didn't have it on the receiver yet!

That taught me the lesson I still use to this day. Keep the stuff spread out thin prior to applying to the action/stock. I use a big glass plate and spread the stuff out super thin once its all mixed up. It can't make any heat that way and this increases your work time.

NEVER cut a resin with acetone or alky in order to reduce viscosity. It can really screw up the properties of the material. Make it weaker, brittle, etc.

Practice, practice, practice and have your prep work done well in advance of mixing. it should be the last thing you do.

Good luck.

Chad
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Chad Dixon
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  #12  
Old 03-21-2010, 07:00 AM
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Re: Bad bedding porn

Chad,

Although it was not Chas who asked, my assumption then is that you're not going to tell me what the tan material is you used in that picture above?

You had a great looooong thread on bedding on another forum in 2007, and I've copied that thread to help me (and borrowed the picture above from there too).
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  #13  
Old 03-21-2010, 07:53 AM
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Re: Bad bedding porn

Good info Chad, thanks for sharing.
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  #14  
Old 03-24-2010, 08:57 PM
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Join Date: Apr 2008
Location: South Texas
Posts: 55
Re: Bad bedding porn

Since the bloke who did Dr Vette's to-be-gun was not a gunsmith and no names have been wiped, it reminds me of one of my "wonderful learning experiences."

When I started shooting I didn't know which end of the gun you were supposed to put the chewing gum in...all I did was parrot what I heard others rattle off.

"Pillar bedded, bedded action, lap the lugs..." blah, blah, blah.

So I took my Rem 700, 708 to this guy's shop and we go over everything, what I want done (I still didn't have a clue what any of the stuff I was saying meant) and this guy takes the rifle and goes to work.

Hyperspace a couple of months and I get my rifle back. He did frankly admit he did not feel he eeked out the accuracy he was intending. I was understanding, as at that time I was shooting factory ammo...and it wasn't THAT bad.

Hyperspace forward a couple of years and this 708 is in the back of my gun safe and most of this jargon was not so foreign and it was not like sipping water out of a fire hose. I wondered what things looked like, the bedding, etc.

Pulled it out and off with the stock and I could do nothing else except break out in a huge continuous belly laugh.

No pillars.

The bedding job was a thin layer (.004-.008") of thumb smeared glass bedding over both screw holes.

Pulled the bolt off. About 25-35% lug contact on bolt locking lugs.

As the old saying goes, "Nothing is learned from the second kick of a mule." It is a true pleasure to learn and read from those on this sight who have so much character, confidence, experience and utter love for machining and smithing.

I thank each and everyone of you that take the time to share and teach.

Wally
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