I would just use generic 50 grn jacketed bullet info. Some manuals just list loads this way anyway. Don't start at max, watch for pressure signs and you will be fine. What would a guy do when you see the same bullet & powder listed, but fairly different charge levels? I'm talking 2 different manuals. Some trend higher than others. Then we have the differences of primer & case type. This is all before we get to individual loader techniques. I realize this maybe won't work for everybody, but it works for me.