Thanks for sharing your experience, ScotMc... What kind of nut would do that!?! Good reason to avoid buying ammo from an unknown private reloader....Wow!
So today I had a chance to load up some RCBS swc's. More accurate for sure. I was so taken with these bullets that I ordered a mold immediately.
Two grains of powder in .38 cases from both gp100 and BH. This group is with the BH, but the gp100 wasn't much different. I have lightened aftermarket trigger springs in my BH, but the sight picture is probably the worst of my revolvers, for some reason. I think if I can fix that, it'll shrink my group even more...
https://i.imgur.com/IvMZygk.jpg
https://i.imgur.com/8BUdnWv.jpg