Get some lead wire, worm weights or heavy solder and with a 160 grain field pt. point down on a piece of wood, use a tapered punch or even a proper size small machine bolt and tap it firmly down into the forward cavity of the field pt. As you make the first one wiggle it loose between taps and the hole in the wood can be used on each pt. and the points will not get stuck. It's not a bad idea to first form the lead/solder with a pair of small pliers to roughly the shape of the cavity, you want it to slide all the way forward to begin with.