Gunsmithing action to pillar contact surface?

Raufoss

Sergeant
Full Member
Minuteman
Nov 23, 2010
559
251
38
Missouri
Hi

i'm just returning form my trip to the range after my surgeon bottom metal installation and noticed this:
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does the pillar to action contact point are good enough or i need to remove material around the pillar and then full bed every thing?
My accuracy result are not that great. just at .925 at 100 yard with Remington 75 gr AccuTip-V, Boat Tail.
 
Surgeon has a reputation I am not ready to criticize. I use the pillars to keep the torqued screws from crushing the wood, or other stock material. I like having a radius on the pillars that matches the receiver's radius. As long as the bedding material supports the action completely, it does not bother me whether I get a circular mark where the pillar meets the receiver, or another shaped mark.

The way I use pillars and bedding, is for the bedding to support the action and eliminate gaps, and the pillars mean I can torque the action bolts without worrying about crushing the stock when torquing the action bolts to the specified amount.

It doesn't look like the action has been bedded into the stock, and that could easily be the cause of your issues. There is a really good tutorial about bedding on this site. I can not remember where I saw it, but am certain you can find it via a search.
 
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I would say that the marks you are seeing on your action are absolutely normal since the pillars only contact the action at those points. I have the same marks where the pillars contact the action even with a full bedding job. I would still suggest that you have the action bedded as it'll make your action more stable in the stock which might improve accuracy, but there are no guarantees. In short, don't sweat it but if you can afford to bed the action to the stock, you should.

Geb
 
The action is held in place by friction provided by the clamping force of the action screws and by contact with the recoil lug. If it doesn't move, it doesn't move. The contact between the pillar and the action won't necessarily impact that. That said, The reason we bed is to make damn sure of it, and you would probably find that your action screws feel a bit "mushy" as you tighten them up - that's because 1) you're compressing stock material at the end, and two, the line contact between the pillar and action is not very stiff. There's room for inconsistency, creep, etc there. All in all, better to have it done up with radiused pillars and metal to metal contact from bolt head all the way through to the action.