Agree with the post that suggests using .357 brass.
Also, I’d avoid any of the swaged lead HPs like the Hornadys as I had leading when I pushed them a bit. Gas checks seem like a good idea.
The swaged Hornadys are pretty soft. They tumble in my little Taurus 605 2". But cast bullets shoot great in it. For some reason though, the Hornadys shoot good out of my Security Six.
So I run thousands of Hornady swaged 38s out. A couple of observations… first they are .357” dia, I think they can benefit from being 358 but they are not. Most likely if they are leading it’s your throats. You can run them up to 1k + if everything fits right. You can add a gas check to them if you want.
Zero brand bullets are better, are sized 358 and are absolutely accurate AF. All of them… LSWC, LSWC HP, WC, LRN. Buy them by the thousands.
