Good work bro.
Good work bro.
Very well written I could never make one but enjoyed reading about it
I made a mould of the barrel channel and glued it in place in the stock. Then drilled a small hole at each end of barrel channel. Then poured in the PU foam in through one hole and blocked that hole with tape while allowing the excess to flow out the other hole after filling void. Epoxied over holes to seal them afterwards. Butt also filled with PU foam - very light and adds stiffness. Very little PU foam required as the expansion is incredible after mixing the 2 parts!
I use Sika Boom expanding foam in the stock to deaden the hollow sound a bit. I cast a barrel channel liner from carbon fibre and epoxy it in the foreend when I am bedding them action and doing the edges of the barrel channel.
Great write up and brilliant result. I have successfully put this project off myself for around 5 years so far.
Been a long while since I have played polyester resins.
Yeah, I had been thinking about doing it for a while, but the project as a whole seemed quite daunting.
The hard part was finding out how to do it. There was very little out there about how to make a stock. That's why I have posted my experiences, to help others wanting to give it a go.
Do you have any pictures of the tabs for the butt joint?
You could probably save a fair bit of weight by vacum bagging it.... then it's just a small step to a one piece stock with a latex bladder
you dont need a big demand...just one person who wants something different.....good mate of mine has a savage in 7mm mag.... the stock was stupidly soft n flexi,whole rifle silly light,barrel is soda straw thin....it used to boot the crap out of him....his mate "leaded it" for him.....we couldnt work out why it rattled,so took action out of stock...it literally had pieces of wheel weights cut and sat in stock cavities!!!!!!
I hot glue gunned them into place...worked a treat.stock is now stiff and the added weight helps with recoil issue...funny how he still uses his .308 more LOL.
when I say soda straw thin.....my std 1 in 20 thread protector will go part way onto his non threaded muzzle.
I did similar with my .22 but used hot glue and lead shot in the fore end,stopped the dreaded wobble when the scope was would up to 7 power and was better for running bunnies with the extra weight forward.worked well.
If you want to achieve the highest level of rigidity and lightweightness, have the mould split horizontally rather than vertically with all the inletting and bottom metal moulded in the two halves. Much harder to make the mould , certain shape would be hard to make and would need a three or for part mould and there is that seem line to sand down and maybe paint over but no need to mock around with inletting.
I believe the old brown precision stocks used to be made like that.
Also vacuum bagging or pressure blader use would improve the strength and lightweightness .
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