
Originally Posted by
gc93
had the same kind of problem. the action block when nipped up didn't sit right on the bottom of the stock cut-out, there was a slight gap over three parts of the block action and block action cut-out in the stock. this caused tension on the cylinder to stock fit and front barrel band/ scope rail to stock fixing, this caused the point of aim to be all over the place / wander about as pressure altered through the shot string I fixed with a few things. by making a shim out of a bit of plastic, used araldite between stock and the plastic shim to level the gap and nipped the action back up, did a £20 note test between the cylinder and stock found the note just bind here and there. found a bit of pipe slightly less than cylinder o/d wrapped sand paper around it and sanded the cylinder cut out a little till the £20 note slid up and down the cylinder freely. SORTED. hope it helps ...