leading at the end of the barrel
just got done shooting four cylinders out of my new ruger super Blackhawk hunter, 7 1/2" barrel, 22grs of 296, 270 grain keith, homemade moly lube. the potential for accuracy is definetly there, but I am going to back off to 20.5grs for tomorrow, because the last 2 inches or so of the barrel was leading. i am wondering a few things, my boolits turned out harder than I thought, so maybe this is an obturation once the pressure lowered thing, or maybe my lube wasn't up to the task, there wasn't a lube star, so first, I am just going to try the same thing but with the reduced load, then if it still leads, I was going to go to a softer boolit, then, all that failing, work on my lube? maybe add to it to make it a bit harder? before you ask, I couldn't afford to get a hardness tester, but I think it might have been up to 14-15bhn. thanks guys! this isn't gonna dampen my spirits any!