I tried a search on this using a few different wording and came up emtpy. Backstory: New to relaoding and haven't loaded my first round yet. As you know, it's slim pickings in regards to component availability. At this point I'm just waiting on my powder to arrive and I'm all set to go. I'll be loading 9mm to start and once I figure out what I'm doing, I'll be limited to 500 rounds as that's the max number of bullets I have right now. So here is my question: If I get my recipe figured out for 9mm and I run out of bullets, I'll need to buy more. As long as I get the same weight bullet, would I need to redo my recipe? Testing a new powder charge? I know the powder charge changes based on bullet weight and powder manufacturer. What I'm asking is what if just the bullet maker changes, all else remaining the same? Hope I've provided the correct information and if I need to restate something, please let me know. thanks!