Re: Bedding an HS Precision stock?
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Okoyote</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Steven Dzupin</div><div class="ubbcode-body"> One thing to watch out for is the Bolt Handel should not
touch the stock,especially when closed.
Look carefully for contact marks under the bolt handel.
Made a BIG difference in how my Remmy PSS shot.
Regards,
Steve </div></div>
Don't mean to hijack. . . . How do you fix the bolt knob contacting the stock? Sand? File? </div></div>
You only need .050" clearance, about the thickness of a matchbook cover. Sanding, filing, and careful application of electic or air rotary sanders (Dremel) are also appropriate. Most fiberglass stocks have an outer layer that you may grind through; don't panic, just remove a little of the filler from the hole, add some Devcon, JB Weld, or even Bondo. Finally, touch up the spot with paint on a q-tip if needed.
A word on bedding blocks: as was mentioned in another post, all bedding blocks are not equal, even within the same manufacturer, and variances occur in the dimensions of some types of actions. Depending on the installation, the action may be stressed when you torque the reciever screws. You can tell if this is the case by watching the bottome steel; if one end lifts when you tighten the other end, you've got a potential source of inaccuracy. Bedding blocks themselves are really only a quickie manufacturing solution to proper pillar bedding; in proper pillar bedding the pillars extend from the reciever base to the bottom steel in such a manner that there is minimal to no stress on either one when the reciever screws are tightened. Bedding block stocks often have intervening fiberglass between the bedding block and the bushing that screws tighten against, causing potential POI shift with differing torque values. A passive fit reduces the effects of torque on point of impact; this was the brilliance behind the AICS system; with proper pillar bedding, you can almost ignore torque values.
Questions about contact: the barrel should not contact the stock unless it is intentionally bedded. Some shooters and stockers will bed a heavy contour barrel 4" or so in front of the action. The rear tang of the action should not rest agains bedding material unless it is designed to be a recoil lug. The only portion of the recoil lug to contact the bedding is the rear face; the sides and front should all be relieved by masking these surfaces prior to bedding. Bolt handles should not contact the stock (Steve made a good point about looking for rub marks: a bolt may not contact when a round is chambered, but may contact during firing if there is any firing pin spring wrap that is released when the trigger is pulled. Get rid of the rub marks). Also, magazines should not contact the stock if possible, and finally but most hard to see, reciever screws should not contact the insides of the pillars or bedding blocks.
Other than that, it's a piece of cake.