Acraglas stock crack repair how to#
Acraglas stock crack repair cracked#
Acraglas stock crack repair crack#

Is better than any economy grade air rifle you can buy new today. This 1984 economy grade air rifle that I paid $160.00 shipped. I did not increase the value of this air rifle. I knew going into this project that I would not be able to hide these repairs. But I was blow away by how the stock finish turned out. It was an old repair) In true ADD fashion I was getting burned out on this project and did not want to refinish the entire stock.

Acraglas stock crack repair crack#

(Oh the other side had a crack that happened prior to the last owner. I had to sand down the the stock the entire length of the crack on both sides of the gun. Gently clamp the stock in the vise and check for level in both directions. This makes my setup or fixture super easy. The screw holes are perfectly square to the stock. It took me about three tries to get that right side hole filled completely. The epoxy left in the oversized hole will act as a bushing. I made guide pins to help locate the screw hole.

Next was to glass bed the front action screws. I will then epoxy toothpicks down into those holes. They have a super runny formula that is perfect for repairing cracks.Īfter that epoxy set. I first epoxied the crack using Brownells Acraglas epoxy. These first two photos are how I received the stock.

Acraglas stock crack repair cracked#

I bought it knowing it had a cracked stock. This is a Diana model 45, spring piston air rifle.

Acraglas stock crack repair how to#

Then someday you will come across something that is very valuable/desirable and you will know how to fix it. And the stock will crack again, somewhere.I’m putting this in the DIY section because I want to encourage people to fix old things. Accuracy 'under every sow,' as the Germans would say. The (missing) wooden buttresses take about 2/3 of the recoil load, I think the round parts of the crossbolt bearing on the edges of the holes, only about 1/3 total and that's not enough.Ī gun with the crossbolt supports gone, is going to spray bullets all over the place. The back end of the receiver was hammering the stock. The sides of the stock at the crossbolt are not visible - were those damaged? If so, that was your problem. In fact that may be why the stock broke in the first place - the entire receiver being hammered back with each shot. The crossbolt needs to be held firmly by the counterbored holes and those buttresses behind and in front. The thin sections of wood on either side of the receiver are all that's taking the recoil, and the crossbolt holes will be beaten out and split the stock very quickly. If not noticed in time, and not repaired, the recoil will quickly damage the main part of the stock, right around and behind the head of that steel crossbolt, and its round nut on the other side. Now join the stock back together displacing the Acraglas Gel and pushing it out every crack, hole and seam and allow it to fill any voids left by missing splinters of wood. But the way I do it, it involves a special jig, some finicky work on a milling machine, and fitting an appropriate laminate 'dutchman' as a replacement. Insert the repair pins into the holes you drilled for them. Missing or damaged wood buttresses are repairable. A small area means greater shear stress per unit surface area.

They have a tendency to shear off and this was apparent even to the Germans when these guns were near-new. 144) had that crossbolt moved forward and the receiver forging altered and machined accordingly - to give the wooden buttresses a longer shear surface where they meet the thinner side sections of the stock. This is a known failure point, and the reason some later guns (Walther, 1945, according to Weaver, 'Hitler's Garands,' p. Note the wooden 'supports' behind the slot for the crossbolt.