308 Powder Funnel

thingiverse

This funnel is made to set on the case shoulder rather than the case mouth. It was made specifically for 308 but may work with other cartridges of similar size and shoulder dimensions. The tolerances are fairly tight because I wanted a funnel that didn't wobble around and dump powder everywhere so results may vary depending on your printer and its settings. The funnel works best with smaller ball shaped powders, but will also work with stick powders as long as you give it a little tap on the side with your powder pan. The center hole is 7mm which makes it slightly harder for larger powders to get through. You will need to sand the interior of the funnel smooth to prevent powder from getting stuck on the layer lines and I also highly recommend choosing RANDOM on your Z seam alignment to prevent a large seam from forming down the side of the funnel. Printer settings: - .1mm layer height - 25% infill (doesn't really matter due to how little infill it has) - Random Z seam alignment - No supports - 3 walls at 1.2mm thick - 4 layers top and bottom - 50 to 60 mm/s