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1st time bedding questions?

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Optics Journeyman
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    Posted: February/07/2018 at 08:10

I have wathced a lot of video's and read a lot of information on rifle bedding. I understand the principle of bedding but wow, there is a lot of conflicting information! Some people seem to not remove any material and just epoxy on top of what was there. Some folks seem to remove a good bit of material and build it back up with bedding compound. Some people seem to bed in front of the recoil lug, some do not.

I am going to bed just the recoil lug on a Sako 85 with a McMillan marbled stock. It came with the McMillan recoil lug. It makes sense to me to remove material but I am not sure how much needs to be removed(1/16"-1/8"). And should I bed in front of the recoil lug?

I am also going to piller/glass bed my winchester model 70. It has a wood stock. I am thinking about doing just the recoil lug area and the tang. But the instructions with the kit say to do the whole action. Again, I am unsure how much material to remove and if I would bed in front of the recoil lug.

Also seems like the majority of people tape the front,bottom, and sides of the recoil lug. But then there are people that just tape the bottom of the recoil lug only.

Any advise will be well appreciated !!



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Post Options Post Options   Thanks (0) Thanks(0)   Quote RifleDude Quote  Post ReplyReply Direct Link To This Post Posted: February/07/2018 at 08:36
The reason for removing material from the inletting prior to bedding is simply to "rough up" the surface to give the bedding a secure mechanical "bite" or foundation to ensure it adheres to the surface properly. If you put bedding over a very smooth or slightly oily surface, it may not adhere to the stock very well.

Taping the front, sides, and bottom of the recoil lug isn't entirely necessary. I've done it both ways - with and without the tape. The purpose for doing so is to provide clearance so that after the epoxy has cured and the tape is removed from the recoil lug, you have some built-in clearance. This makes it a bit easier to remove the action from the stock later, as it gives you some "tilt" room, using the barrel as a lever rather than having to pull the action straight up.

As for the different bedding philosophies -- full action length vs. recoil lug only, bedding short section of barrel in front of recoil lug vs nothing in front of recoil lug -- there is no real correct answer there. Some people believe in the superiority of one method vs another, but if the proof is in how it shoots, I've seen successful bedding jobs that use all of those techniques. I'm not convinced any are necessarily superior to the others. A lot of that decision has to do with how tight the pre-bedded inletting is, how much surface area is present on the action being bedded, and what material the stock is made of. Some actions don't give you much surface area to bed on the tang area because the trigger assembly parts consume most of the real estate. On those types of actions, it's tough to get much benefit from bedding in the tang area. Bedding is also done to help seal the inside of a wood stock as much as providing a solid foundation for the action.

I usually bed the whole action if the setup allows, and will extend my bedding to around 1" - 1.5" forward of the recoil lug. I used to tape the front, sides, and bottom of the recoil lug prior to bedding, but I don't do that any longer. It's really tough to get the tape to stay put when you press the action down into the epoxy. Is that the best method? I don't know, but it has worked for me. The main thing is to ensure you have stress-free bedding. Therefore, I don't torque the screws completely down when bedding to ensure I'm not flexing the action and causing that flex to be reflected into the epoxy when it fully cures. I just install the screws, lightly snug them initially, then back off on the torque to ensure I'm not creating any stresses. You want the screws present to prevent epoxy from squeezing into the threaded holes on the bottom of the action and also to create centered screw holes in the stock that you can drill out to original diameter after the epoxy cures. Of course, put release agent on the screws just like you do for the action.

Hope this helps.
Ted


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Post Options Post Options   Thanks (0) Thanks(0)   Quote cbm Quote  Post ReplyReply Direct Link To This Post Posted: February/16/2018 at 09:33
Thanks Ted! I bedding the recoil lug on the Sako 85 and it went well. Definitely glad I did it before tackling my Model 70.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote RifleDude Quote  Post ReplyReply Direct Link To This Post Posted: March/03/2018 at 12:25
So, we never got a follow-up range report. How does she shoot? Did you bed your M70 too?
Ted


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Post Options Post Options   Thanks (0) Thanks(0)   Quote cbm Quote  Post ReplyReply Direct Link To This Post Posted: March/07/2018 at 08:51

I haven't had time to shoot groups with the Sako. I went and got it on...........minute of hog anyway !! Big Smile 

Haven't got to the Mod 70 yet !


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Post Options Post Options   Thanks (0) Thanks(0)   Quote SVT_Tactical Quote  Post ReplyReply Direct Link To This Post Posted: March/07/2018 at 09:38

Bacon - its whats for dinner.


Nice going!

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Post Options Post Options   Thanks (0) Thanks(0)   Quote Peddler Quote  Post ReplyReply Direct Link To This Post Posted: March/07/2018 at 18:19
The “ other white meat “ !!!💥💥🐖🐖🐖
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It is the same when you are stupid.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote RifleDude Quote  Post ReplyReply Direct Link To This Post Posted: March/07/2018 at 19:02
Nice hunt and nice rifle!
Ted


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Post Options Post Options   Thanks (0) Thanks(0)   Quote probably Quote  Post ReplyReply Direct Link To This Post Posted: March/07/2018 at 23:37
Originally posted by RifleDude RifleDude wrote:

The reason for removing material from the inletting prior to bedding is simply to "rough up" the surface to give the bedding a secure mechanical "bite" or foundation to ensure it adheres to the surface properly. If you put bedding over a very smooth or slightly oily surface, it may not adhere to the stock very well.




I'm about to bed a few also.  2 with aluminum blocks, and a regular laminate. 
would you just take a dremel and scuff up (and then degrease) the surface that will interface with the bedding in order to end up with a very thin layer of acraglas, or is a small overall amount of material removal necessary because the compound must be a minimum thickness to last? 

also, any advice on how to bed a correct pressure point back into a forearm?  A few years ago, I told the gunsmith not to free float the barrel on one rifle, but he decided not to listen. The gun would not shoot afterwards until I glued a few paper shims back into the end of the channel, so I'd like to make a more permanent fix than just glued paper that might get wet and disintegrate on a hunt. 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote cbm Quote  Post ReplyReply Direct Link To This Post Posted: March/08/2018 at 10:01

Obviously I am a newbie at bedding but I was suprised at how well the epoxy spreads out. I scuffed mine up but realized afterward that there probably is not a need the remove a whole lot of material. And with tape only on the bottom of the recoil lug, it is a "tight" fit !!!

Here's a little better picture of my rifle.



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Post Options Post Options   Thanks (0) Thanks(0)   Quote SVT_Tactical Quote  Post ReplyReply Direct Link To This Post Posted: March/08/2018 at 10:37
I like the stock on that gun.
"Most folks are about as happy as they make their minds up to be" - Abraham Lincoln
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