Greetings, I have loaded some 158g PRN (Rainier) bullets for general target use with my S&W revolver but recently I switched to a 158g PFN (Rainier) bullet to run in a lever action carbine I purchased. I didn't like the idea of round nose bullets stacking nose to tail in my lever action's loading tube. Now the Rainier bullet folks used to recommend using lead bullet data, but they have change that as of late; - Start at 3:15 through 4:20 for more information on this. I had a hard enough time finding data for Jacketed or plated bullets, now with a difference in bullet length... 158g PRN bullet length - .670" 158g PFN bullet length - .630" Well I have some ideas but before I begin this project I was interested in what you folks would advice concerning load data for these flat nose bullets or where you found some published data. If any of you have a favorite powder/charge amount, that would be great as well. Thanks in advance.