I'm waiting on components in the mail to start working up a load for my 7 Mag. I have read A LOT and RL22 seems to give excellent velocities across the range of bullet weights, but I hear it is sensative to temperature so I didn't order any. If it isn't the same velocity or close from 90 degrees in the summer to 30 in the winter, I'm not interested. It doesn't do me much good if its accurate, but 10" lower then it was supposed to be.
