Thank you 2525. I did not sleep very well thinking of the response I might receive. I will proceed w/great caution and intensity. On picking a powder for the 338 Federal as a starting point, in your opinion, which is better? A full case or the one that achieves the most velocity? Please don't say both. Yes, I have found that both seem to go hand in hand sometimes but have also found that for peak velocity many times a powder that does not fill the case such as BL-C2 will give the best velocity. It does seem like black magic sometimes and hand loading has been the most satisfying and mystifying thing I've ever done in my life. I haven't shot an animal w/a factory cartridge since about 1979. If you think of anything that might help me in my quest...please let me know. Thanks again, powdr