I had to try a pound of this new Alliant powder. I intend to shoot some 175's (JLK's) too, but I have a box of 500 190's, so these came first. I couldn't find any data, so I did a little estimating, and came up with 43.0-47.0 in 1/2 gr. increments. I was using CCI BR2's and new WIN brass with a...