The reason I ask is because I have a .243 that happens to be the same exact type of rifle used in the testing of my Hornady manual, and with IMR4350, H4831, and IMR7828, it gets exactly the velocity that the book says it should get. Between 2900-2950fps. However, RL22 goes over 3100, and the brass is expanded no more than the other 3 powders, so I will take an extra 150fps smile

Some lots of powder are just different from others, and that can be a big factor.



"Give a lazy man the toughest job, and he will find the easiest way to do it"