A simple gun powder trickler with 2 different risers for different powder scales , You have to use a 8 mm pipe with internal thread for the powder to travel easy to your scale but i reckon it will work even without the thread but slower. this is for now a work in progress so i have not measured the pipe for the hole inside the trickler that you have to grind , but i hope that if you have the skills to make ammo the tubing is a simple diy .take a tube between 8 and 12 cm ( your choice) glue the knob make 2 washers and glue one close to the knob stick it in the trickler and mark a hole inside, grind a hole for the powder to fall in the pipe , assembly the pipe and glue the other washer and your done