i would say that loose powder would be the best. The pellets cut down some time on loading but have u ever noticed any powder that had fallen away from the pellet and sits at the bottom on the box? Measuring by hand with loose powder IMO is be the most accurate way. The point of pellets was to mainly double charge for a product and get half that shots than you would with loose powder. They say it burns cleaner but who knows. They make up so much BS to sell something lol.