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I have a H&K 630 which I have used for years to shoot coyotes. It is a great gun, shoots any ammo accurately. The only thing I don't like is the factory stock. It has a very thin Schnabel fore end. Impossible to put a bipod on it. So I decided to make a new thumbhole stock for it. The thumbhole stock is a perfect fit for this gun do to the side safety. I reproduced a Savage Mark II thumbhole stock, in the process I made the butt, forearm and grip thicker than the Savage thumbhole stock.
Reproducing the Savage stock started two weeks ago. I was using a piece of air dried walnut cut 15 years ago. I didn’t want to make a mistake so I took my time and went slow. It took four hours to duplicate the outside of the thumb hole stock on one afternoon. Several hours the next day to copy the inletting of the H&K stock the next day. Then I ruff sanded the new stock while in my stock duplicator, there where places that I couldn’t do in the duplicator. It looked pretty good when I took it out. Next was sanding with 150 grit sand paper. Then I mounted a butt pad and sanded it to the stock. More sanding with 220 grit paper. Then 330 grit paper and 400 grit. Then filled the pores with gun stock oil and small pieces of 400 grit sand paper, producing a sludge. After the sludge was dry I sanded it with 400 grit paper, then repeated the sludge process again. After that I added two more coats of hand rubbed stock oil followed by buffing with soft cotton. Then two hand rubbed coats of thinned polyurethane followed by buffing with soft cotton.
At present, I’m working on the side safety area. I’ve filled the removed wood section with glass bedding and milled out the bedding to match the plastic piece embedded in the H&K stock. Today, I will begin glass bedding the action, followed by more sanding with 600 grit paper and coats of rubbing polyurethane.
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Reproducing the Savage stock started two weeks ago. I was using a piece of air dried walnut cut 15 years ago. I didn’t want to make a mistake so I took my time and went slow. It took four hours to duplicate the outside of the thumb hole stock on one afternoon. Several hours the next day to copy the inletting of the H&K stock the next day. Then I ruff sanded the new stock while in my stock duplicator, there where places that I couldn’t do in the duplicator. It looked pretty good when I took it out. Next was sanding with 150 grit sand paper. Then I mounted a butt pad and sanded it to the stock. More sanding with 220 grit paper. Then 330 grit paper and 400 grit. Then filled the pores with gun stock oil and small pieces of 400 grit sand paper, producing a sludge. After the sludge was dry I sanded it with 400 grit paper, then repeated the sludge process again. After that I added two more coats of hand rubbed stock oil followed by buffing with soft cotton. Then two hand rubbed coats of thinned polyurethane followed by buffing with soft cotton.
At present, I’m working on the side safety area. I’ve filled the removed wood section with glass bedding and milled out the bedding to match the plastic piece embedded in the H&K stock. Today, I will begin glass bedding the action, followed by more sanding with 600 grit paper and coats of rubbing polyurethane.
