- Mar 18, 2018
Anyone here have first hand experience w a 7-300 NM improved 30*?
I would only fireform 50 or 100 depending on how much you will shoot that rifle. No point in doing a bunch if you are only going to shoot 25 or 30 when you take it to the range. 100 pieces should last the life of the barrel and fireform loads can still be a great load just a little slower. Hydroforming gets it close but you will still have rounded shoulders that need fireformed from the research I've done on it. I considered it for another ackley cartridge that I have.Fire forming brass or using a hydro die? My concern is killing half of the barrel life due to fire forming brass.