yeah hov, I accidentally drilled the wrong size hole in the wrong size place (riser as opposed to limb hole) and had to fill it with the 9mm, and the other one was only supposed to be .25 inch deep but drilled all the way through, so I used .22 brass to cap the extraneous holes. The riser I think is actionwood, it doesn't explicitly say actionwood or dymondwood. I know it's laminated maple, that's all it says.