Clearance for pillars?

[savage express]

How much clearance do you give between the stock and pillars to allow for Dev con (I did groove the OD of the pillars).
Also, if anybody knows where to get Dev con at a good price in Edmonton would help as well.

 

[TwoTone]

Its pretty forgiving.

If you've grooved the pillar then as long as you can slide it into the hole easily and have a means to make sure it is aligned properly while the epoxy sets, you should be fine.

I personally like to use a hole with some clearance to ensure there is lots of epoxy around the pillar. Either way is fine, epoxy hides many sins....

Its non-critical. Just pick a drill bit size that allows some wiggle room for your pillar.

 

[savage express]

So 0.010" to 0.015" is the recommend clearance.
I've searched all over the net and watched some pretty good video's on it but can't find out the exact clearance. In the vids and pics they have the pillars tight to the receiver and gooped with "mud" (Dev Con) as if there is a 1/8" clearance.
They also remove 1/8" of wood all around (even 1/4" around the lug) then support the barrel with black tape and a small point at the back of the receiver. Is this a good way to do it? cause I sure would hate to #### it up.

 

[crout]

i thought the purpose of pillar bedding was so the action touched the pillars, then you bed the action? i think any clearance would defeat the purpose of the pillars.

 

[savage express]

I was referring to the clearance of the hole in the stock where the pillar's go into. I'm thinking that there has to be room for the bedding agent to go into. Just trying to find out how much.

 

[crout]

gotcha! when i did my 10/22 it was a pretty tight fit. that way i couldn't screw up the alignment with the action. i used a dremel to undercut inside the hole so i would have a good anchor for the epoxy to grab onto. and i also cut small notches into the sides of the pillar. i also wasn't using devcon, so i don't know how well it sticks to different materials. hope this helps.

 

[Zeb]

Gregg Distributors sells several different types of Devcon. I don't know what you consider a good price.

 

[dan belisle]

The bearing shop around the corner from Princess Auto in Edmonton has it as well (most good bearing shops should carry it, actually). - dan

 

[savage express]

Is that the North West Princess Auto?

 

[Grizzlypeg]

It seems to make sense to me to have some clearance so that they are free to move and align with the screws, free of any tension caused by misalignment or improper spacing of the holes.

 

[savage express]

Yeah, that's what I'm finding. As well as a little room for the mud to fill along with the groves in the pillars.
So far I've got the mag well machined out. The pillars are size to size with the holes, just so I could pick up center from the bottom of the stock. Although I will probably go 0.020" over on holes.

 

[Grizzlypeg]

The idea of wrapping the barrel with some tape to elevate and center it in the barrel channel was the technique I followed. I can't comment on the part about something elevating the rear of the receiver, but that makes sense if the pillars are loose and surrounded only by epoxy. Something has to limit how far the receiver and pillars drop into the stock prior to the epoxy setting up.