Hi everyone, Id like some advice if possible please. I have shot 80 rounds or so of factory brass in my Heym SR20N and Im ready to reload that once fired brass. The Vit N150 data, which is the powder I have, for 7x57 mauser is for 140gr and 160gr bullets. I have Hornady 139gr SST's and 162gr ELD match bullets. Is the difference in bullet weight enough that the starting loads in the Vit manual for N150 need to be revised or can I load 139gr as per the 140gr starting load and load the 162gr as per 160gr starting load? I cant find Hornady data for their bullets and N150 powder?
I have some Hornady brass which was loaded with 139gr SST's, I have some Gecco brass that was loaded with 162gr SP's and the bulk of my brass ( about 50 cases ) is Priti Partizan PPU which was loaded with their 173gr FMJ. Also, the factory Hornady ammo I have with the 139gr SST bullet is crimped. It may seem a stupid question but should all cannelured bullets be crimped? I'm a novice rifle cartridge reloader and Im gathering information before I do anything. I did reload straight walled pistol ammunition many years ago but this is a different ballgame. I think I can get some one to one help if needed.Thanks in advance.
I have some Hornady brass which was loaded with 139gr SST's, I have some Gecco brass that was loaded with 162gr SP's and the bulk of my brass ( about 50 cases ) is Priti Partizan PPU which was loaded with their 173gr FMJ. Also, the factory Hornady ammo I have with the 139gr SST bullet is crimped. It may seem a stupid question but should all cannelured bullets be crimped? I'm a novice rifle cartridge reloader and Im gathering information before I do anything. I did reload straight walled pistol ammunition many years ago but this is a different ballgame. I think I can get some one to one help if needed.Thanks in advance.