New guy question. I have worked up a good load using a sliding powder measure that shows 100 gr. on the sliding scale at my selected charge. I weighed the charge on my 5-0-5 powder scale and it weighs 70 gr +-. This is Pyrodex RS, which they say is equivalent to FFg. Having measured smokeless powder charges in centerfire cartridges for decades by weight, I am unused to measuring by volume. I dont even know what a "grain" by volume is. It doesnt matter too much, because I will measure my load by volume and not weigh it. Just wondering what the smokepole protocol is. Thanks.