Questions about woodstocks for air rifles.
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Questions about woodstocks for air rifles.
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Topic: Questions about woodstocks for air rifles. (Read 1026 times))
Carlos G
Shooter
Posts: 13
yes
Questions about woodstocks for air rifles.
«
on:
March 28, 2013, 06:13:20 PM »
Hi All,
My first question here is I have a RWS 94 with a cracked stock. The crack runs from the slot cut out on the bottom of the forearm to the action hold down screw. I have now repaired the crack but, as I assemble the action to the stock I notice that the forarm portion flexes apart as the action is placed into the stock ( about .060" )
Is it okay to relieve the wood to minimize this flexing? I believe this may be causing the stock to crack/split. Also is there any benefit to bedding the action to the stock ala powder burners or is there a better method for springer air guns?
Airifles I have found have their own set of quirks and just wanted to see what is the best method of setting up a wood stock rifle.
Thanks for the help
Carlos G
Logged
Walla Walla, Washington
pelletman
Plinker
Posts: 119
yes
Re: Questions about woodstocks for air rifles.
«
Reply #1 on:
March 28, 2013, 06:34:46 PM »
Carlos,
I have hand fitted my share of Springer stocks and I can tell you that Spreading action as the barreled action is inserted in the stock is NOT good and yes you are right it likely caused the crack in the first place.
Many Spring guns are built in more Humid climates than much of the US. Also, some lots of wood are on the high side of moisture content when they are milled into stocks. The wood shrinks over time after the rifle is made and depending on the grain orientation can cause the inletting to become "tight" over time. I bet your gun was fine when it left the plant and over time the wood has continued to shrink a bit.
What I would doe if I were you is get some bright red lipstick or inletting black from Brownell's or Track of the Wolf along with some round scrapers and hand fit that air tube which I bet is causing the issue. Check for any other areas of binding in the inletting. Especially along the cocking arm and linkage. The contact areas will show up as shiny spots . So will any compressed areas along the air cylinder which are probably causing he spreading issue.
Logged
witchita,kansas
Carlos G
Shooter
Posts: 13
yes
Re: Questions about woodstocks for air rifles.
«
Reply #2 on:
March 29, 2013, 12:52:10 AM »
Hi Pelletman,
Thanks for the reply. After the stock is fitted to the action would there be a benefit to bedding the action with accra-glass to get that "perfect fit" or will the rebounding/harmonics of the spring break down the bedding compond? I suspect the fit is far from perfect and was wondering it it would be worth the effort to bed the action with compound. My wood working skills are okay but, I most likely would end up carving my way to China to achieve a perfect fit!
Again thanks for the reply
Carlos G
Logged
Walla Walla, Washington
airgunstocks
Shooter
Posts: 98
yes
Real Name: Michael McKeown
Re: Questions about woodstocks for air rifles.
«
Reply #3 on:
March 29, 2013, 02:59:56 PM »
I am of the opinion that in many cases glass bedding a heavy recoiling airgun is a good thing. There is a slo-mo video on youtube I've seen of I think it was an HW90 being shot. The barrel is whipping around, the action is moving in the wood, and then the pellet comes out. What is dramatic is how much the action moves in the wood. A lot of that force is taken by the forearm screws. I've seen Patriots with them sheared right off. Glass bedding the action helps transfer the motion of the action to the wood directly.
Suggestions for glass bedding and not having the action get stuck:
Sand to remove any oil from the wood you want the bedding compound to get glued to.
Use plasticine modeling clay to fill in any reverse curves, divots, or sensitive parts that would prevent the action from being removed once bedded.
Wax the action with a non-silicate wax. Silicate containing wax, like used on cars, makes liquids bead. In this case you do not want beading, you want even sheeting of liquids because:
next apply Polyvinyl Alcohol. This thin liquid sheets over the non-silicate wax and creates a microscopic onion skin that will later wash off with water (or gun oil) but is not affected by epoxy.
The industry standard wax is Partall #2, that and the Polyvinyl Alcohol I get from Tap Plastics.
Be sure the bedding compound does not wrap around the action higher than the centerline of the tube, which would prevent it from being removed from the stock.
Michael McKeown
Logged
Clearlake, California
michael@airgunstocks.com
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Questions about woodstocks for air rifles.