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toddco Rookie Member
Joined: Sep 09, 2009 Posts: 20
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Posted: Wed Feb 17, 2010 9:15 pm Post subject: Glass bedding |
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Anyone out there with extensive knowledge about glass bedding? I have a model 700 sps varmint heavy barrell in .243 i have just put an hs precision stock on it and was going to do a home bedding job.
Thanks,
Toddco
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slimjim Super Member
Joined: May 16, 2009 Posts: 8314 Location: Fort Worth TX
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Posted: Wed Feb 17, 2010 9:29 pm Post subject: Re: Glass bedding |
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toddco wrote: |
hs precision stock |
How is the stock configured? Already pillar bedded or inset block? Have you already shot it to see if it even needs to be bedded. I was thinking about bedding a stock on one of my rifles, but when it was shooting 4 different loads under 1 moa and 3 of those at 0.5 moa, I didn't even want to touch it.
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slimjim Super Member
Joined: May 16, 2009 Posts: 8314 Location: Fort Worth TX
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Posted: Wed Feb 17, 2010 9:30 pm Post subject: Re: Glass bedding |
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A picture would be nice of the stock where the action would be.
_________________ "To anger a conservative, lie to him. To anger a liberal, tell him the truth." - Theodore Roosevelt
"The world is a dangerous place to live; not because of the people who are evil, but because of the people who don't do anything about it." - Albert Einstein |
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SingleShotLover Super Member
Joined: Dec 26, 2007 Posts: 1005 Location: Illinois
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Posted: Thu Feb 18, 2010 6:48 am Post subject: Re: Glass bedding |
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Slimjim is right, if it is pillar bedded I would leave it alone except perhaps bedding the recoil lug mortise. I only have the one rifle wearing an HS stock and it beds rock solid. The only reason I bedded the recoil mortise is that I wanted to eliminate any chance of lateral movement...not that any was perceptible anyway.
_________________ If you can't hit it with one, you probably can't with two either!
The biggest problem with a closed mind is that it never seems to come with a closed mouth.
SSL |
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chambered221 Super Member
Joined: Aug 17, 2007 Posts: 3455 Location: Lost for good !!!
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Posted: Thu Feb 18, 2010 6:53 pm Post subject: Re: Glass bedding |
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HS uses a chassis system that was designed as a direct bolt on replacement that does not require any bedding !!!
I understand SSL's theory and would not disagree with him on it however my dad owns a HS built 700 Remington that has no bedding and can't see any reason to add it.
There are some who believe even if pillars are used a skim coat of bedding is still needed........Not that I'm an expert or anything but it doesn't make sense to me !!!
_________________ Ask as many people needed, sooner or later your question will be answered the way you want it answered !!!
A free people ought not only to be armed and disciplined, but they should have sufficient arms and ammunition to maintain a status of independence from any who might attempt to abuse them, which would include their own government.
~George Washington |
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SingleShotLover Super Member
Joined: Dec 26, 2007 Posts: 1005 Location: Illinois
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Posted: Fri Feb 19, 2010 7:29 am Post subject: Re: Glass bedding |
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It quite probably was totally unnecessary for me to bed the recoil mortise, but I just get nervous when I see gaps in any supporting area! Just my paranoia kicking in!
_________________ If you can't hit it with one, you probably can't with two either!
The biggest problem with a closed mind is that it never seems to come with a closed mouth.
SSL |
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woods Member
Joined: Oct 15, 2005 Posts: 89
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Posted: Fri Feb 19, 2010 10:22 pm Post subject: Re: Glass bedding |
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I have 2 HS Precision stocks and plenty of pics
First remove any old bedding if there is any
then insert the rifle into the stock with some kind of liquid on the bottom of the barrel so that it will leave a wet mark where the barrel is hitting the forearm
A dremel tool works great for removing stock material
keep inserting, marking and removing the barrel until the barrel no longer contacts the stock. Make sure and get a consistant gap at the edges of the barrel
I like to use the green box Acraglas for the bedding and Birchwood Casey Stock wax for the release agent.
The Acraglas will come with a release agent but it is too thin for my liking and hard to see where you have applied it. It is very important to coat all the surfaces of the gun that you do not want the bedding compound to stick to.
Put a couple of layers of tape on the front of the recoil lug
so as to leave a gap that will make it easier to insert and remove your action. Then coat everything including the outside edges of the stock and the action screws with the release compound
In these pics I used MarineTex instead of Acraglas but will use the Acraglas on the next bedding job
Insert the barrel in and leave for 24 hours and when you break the stock loose it will look like this
Clean it up around the edges and even up the edge at the front.
It is a little scary the first couple of times you do it but just make sure to coat all the surfaces with the release compound and you will be OK
_________________ Guns only have 2 enemies, rust and politicians |
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slimjim Super Member
Joined: May 16, 2009 Posts: 8314 Location: Fort Worth TX
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Posted: Sat Feb 20, 2010 8:18 am Post subject: Re: Glass bedding |
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great pictures woods! I've always debated whether to bed infront of the recoil lug and then how far. There seems to be varied opinions out there. What is yours?
_________________ "To anger a conservative, lie to him. To anger a liberal, tell him the truth." - Theodore Roosevelt
"The world is a dangerous place to live; not because of the people who are evil, but because of the people who don't do anything about it." - Albert Einstein |
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chambered221 Super Member
Joined: Aug 17, 2007 Posts: 3455 Location: Lost for good !!!
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Posted: Sat Feb 20, 2010 9:07 am Post subject: Re: Glass bedding |
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Most guys I know of doing bedding work will only bed the first 1/2-3/4 of the chamber area and only when they're dealing with long heavy bull type barrels !!!
_________________ Ask as many people needed, sooner or later your question will be answered the way you want it answered !!!
A free people ought not only to be armed and disciplined, but they should have sufficient arms and ammunition to maintain a status of independence from any who might attempt to abuse them, which would include their own government.
~George Washington |
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slimjim Super Member
Joined: May 16, 2009 Posts: 8314 Location: Fort Worth TX
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Posted: Sat Feb 20, 2010 12:17 pm Post subject: Re: Glass bedding |
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chambered221 wrote: |
bed the first 1/2-3/4 of the chamber area and only when they're dealing with long heavy bull type barrels |
That was what I have come to believe also. If you go any beyond the straight chamber area then you start altering the natural harmonics of the barrel more.
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woods Member
Joined: Oct 15, 2005 Posts: 89
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Posted: Sat Feb 20, 2010 12:22 pm Post subject: Re: Glass bedding |
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I was doing this bedding because I had rebarreled to a 338RUM with a Brux #5 contour and the chamber and barrel was bigger than the factory 338 win mag barrel that came off it. I like to bed the entire chamber area and part of the barrel just in front.
To me the receiver and barrel join right at the recoil lug area. If you do not bed in front of the recoil lug then the weight of the barrel is pulling down on the recoil lug which is at the junction. Seems better to me to support the receiver in the pillar bedded stock, the recoil lug functions as a transfer point for horizontal backward forces only and the barrel is supported by a good bed under the chamber to hold the barrel in a free floating forearm without the weight bearing on the junction of all 3.
It seems to shoot OK with it bedded like this
_________________ Guns only have 2 enemies, rust and politicians |
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slimjim Super Member
Joined: May 16, 2009 Posts: 8314 Location: Fort Worth TX
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Posted: Sat Feb 20, 2010 4:00 pm Post subject: Re: Glass bedding |
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woods wrote: |
I had rebarreled to a 338RUM with a Brux #5 contour and the chamber and barrel was bigger than the factory 338 win mag barrel that came off it. |
When you have a nice group like that, OK just doesn't seem to correctly cover it. Why the switch from Win Mag to RUM?
Last edited by slimjim on Sat Feb 20, 2010 10:06 pm; edited 1 time in total |
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woods Member
Joined: Oct 15, 2005 Posts: 89
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Posted: Sat Feb 20, 2010 9:08 pm Post subject: Re: Glass bedding |
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slimjim wrote: |
woods wrote: |
I had rebarreled to a 338RUM with a Brux #5 contour and the chamber and barrel was bigger than the factory 338 win mag barrel that came off it. |
When you have a nice group like that, OK just doesn't seem to correctly cover is. Why the switch from Win Mag to RUM? |
Got tired of pushing the 338 win mag hard in order to get 2800 fps with a decent sectional density bullet like a 225 gr. Was getting the crap kicked out of me anyway. Also wanted a capable long range gun and most of the long rangers shoot the heavy 338's like the 338 Lapua, 338 Allen Mag, 338RUM etc.
Was losing the primer pockets at that upper load in the pic so I have dropped down to 94 gr RL25 for ~3050 fps which was all the velocity I wanted in the first place.
_________________ Guns only have 2 enemies, rust and politicians |
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slimjim Super Member
Joined: May 16, 2009 Posts: 8314 Location: Fort Worth TX
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Posted: Sat Feb 20, 2010 10:14 pm Post subject: Re: Glass bedding |
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woods, I've been working my loads for shooting my .270 Win at longer ranges with Barnes Bullets. I found that the weight of their bullets vary by a grain or more. I sorted the bullets by 0.1 gr weights and plan to shot matched bullet weights to see if the groups improve. Hopefully like the groups I get from my Bergers which are all within 0.1 gr of each other. If you try that, let me know what results you get. I'm not sure when I'm going to be able to get back out again.
Last edited by slimjim on Sat Feb 20, 2010 10:15 pm; edited 1 time in total |
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slimjim Super Member
Joined: May 16, 2009 Posts: 8314 Location: Fort Worth TX
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Posted: Sat Feb 20, 2010 10:14 pm Post subject: Re: Glass bedding |
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Oh, have you checked out these bullets.
www.gsgroup.co.za/techdata.html
_________________ "To anger a conservative, lie to him. To anger a liberal, tell him the truth." - Theodore Roosevelt
"The world is a dangerous place to live; not because of the people who are evil, but because of the people who don't do anything about it." - Albert Einstein |
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