243 rifle powder charge
May 8th, 2014 at 1:30pm
I'm building 243 and the power charge changes every pull does not stay with in spec. Press is using rifle charge bar. I'm using IMR 4350 powder. Anyone help would be greatly appreciated.
RE: 243 rifle powder charge
May 9th, 2014 at 9:50am
This is due to trying to pour a large-grain extruded powder through a small hole. The powder will log-jam in the funnel. It helps to slow your downstroke speed, so it takes at least one full second to move the powder bar from one side to another. Some customers have taped an aquarium pump to the hopper to vibrate it, but the best solution is to switch to a ball or short-grained extruded powder.