I have a decent enough reserve of all the popular rounds to not freak out if I want to go shooting. But, not very often. I just don't know when I can replace it...even the lowly .22.
So, I ran by Bass Pro shop the other day and picked up 200 .457 lead balls. A pound of Pyrodex and 200 #11 primers. The Ruger Old Army needs a workout. Doing the math, it works out to a little under $20 bucks for a box of 50. (actually alot cheaper, the powder will last alot longer than 200 rounds...just rounding up one trip)