Well what I do is shoot lots of .22
. Bring a box or two, or more of bulk 550s and go.... Then round out the session with 50-150 or so big bore (or peanut .357 bore) downrange. Works for me and you get plenty of inexpensive target practice too! Then you don't have to reload as often. I keep around 1000 ready to go at all times just in case I don't get around to reloading the 100-200 or so I shoot up each week (when I can) .