I have a couple different powders each in 1 lb canisters.. I am finishing up with one of the RE-22's and moving to the next one, in the middle of loadings for my 25-06. I probly have 5-10 charges of the old stuff and I want to load 45 rounds. What is the recommended practice of switching lots? can I blend in if I reduce my charge and work up again or can I simply continue using the same powder , same charge, I 'm only using 49.2-grains for a 120-gr bullet.. what are your guys' thoughts?? thanks in advance..