[gspman]

Hello happysig.I used a old reloading manual for a blue dot load right after i bought a ruger gp100.I loaded 11grns of bluedot under 158gr win hp. loaded 10 and threw 8 away.that load is extremely hot.Learned lesson to search current info and multiple sources,before start loading cartridges.See alot of questions on overall length of cartridges.When loading jacketed bullets most have a cannalure,so if crimped in that, length should be fine.Cast bullets have a crimp groove that will establish correct length. Longer is safer,dont want shorter because compresses powder space and pressure rises.Alliant calls for 10.2grns max bluedot with 158grn jacketed bullet.Went shooting yesterday made ragged 1.25 groups with 5shots of14grns 2400 158grn hornady xtp consistently.I find 2400 to shoot my heavy 357 loads most accurately.Hope that helps.Look at 38spl data and load in 357 cases.I LIke trailboss powder in light loads that those cast bullets you have should be loaded at.hope that helps. gspman