Roskoe,
I am a loose powder user and I really am a bit surprised with your results. Money or cost of the product has always been a concern for me, but beyond that the irregularities in the pellets has always been my main concern. The following information comes from another writer on another site but it certainly verifies what I have found in my own personal experiances...
Pre-formed powder charges made up of "pellets" like the Triple Seven Pellets above do make loading easier...but can vary more than two-grains from one pellet to another. For best accuracy, weigh every pellet in a new box of pellets and separate them into lots that are within a half-grain. To use them just as they come out of the box means that a so-called three-pellet 150-grain charge can vary as much as 6 to 7 grains every time you pull the trigger.
[/align]Keep powder charges as close as possible to the exact same grain weight for each shot...and groups will tighten.
[/align]I have felt because of the pellets not being uniform in weight that I was not always shooting the same charge and I think my shootingresults verifiy this. I have achieved much tighter and uniform groups using loose powder than I can with pellets/sticks.[/align][/align]I can not think of a time that I have ever seen anyone in competition use pellets... They get to the point that they
weigh each individual load to insure accuracy.[/align]