I sure agree with KIm, the strength will be a lot better if the tang runs deeper into the antler. Usually at least 3" and more if possible. Drill the antler same size as the tang. If it's tight, you can heat the tang and let it burn to fit in the antler. Of course, be careful not to change the blade temper. I drill a small, 1/16", hole on the bottom side of the handle, right where the tang is going to bottom out so the epoxy will totally fill the hole around the tang. When the epoxy starts to seep out the little hole, cover with a piece of plastic and duct tape. When it's set up, you can drill out a little bit of the 1/16" hole, sand some antler and put the dust in the hole and add super glue. This will usually make the weep hole almost disappear. Last thing is a pin through the antler and tang.