well I’ll keep an eye on it. It was virgin brass. I looked back and they were actually at 3189fps. It looked like a node around there though (3160area) and another closer to the 3065 FPS range. So will focus on the lower node for now.depending on the barrel length and powder used thats do able. another thing to remember though is that virgin and once fired brass won't exhibit much pressure signs until your at very high velocities. once that brass is fired several times though it will definitely have the tell tale signs of pressure. increased bolt lift/clicks etc. ive had 215 bergers over 3275 fps on once fired brass and still have easy bolt lift in a 26" barrel. that brass at several firings wouldn't come close to that velocity without bolt clicks though.
no. you can do load development before then. just realize that the top node going mach chicken that you reach on once fired brass isn't going to be able to be used on brass fired more than 3 times.So should we just be randomly firing the brass 3 times and then start load development?