Recently walked into 2 of these Arisakas Type 38`s 1 Full with Mum the other was a sporter sliced mum 4 lines ran through. I am Currently working up a load IMR 4320 and a 6.5 .264 speer gold dot. Anyone with experience have a starting load (headaches) looked over tons of info so far nothing on start plenty of warnings not to exceed 46 grains. My Mosins and Steyrs were so much easier hhahahahahahah