I loaded up a test batch of 357 magnum last night. Used Summit 158 grain coated SWC’s, Winchester 244 powder, and Fiocchi small pistol primers. Here’s my results:
158gr Summit SWC
6gr Win244, 1.58” COAL, SPP
17.4” Henry: 1300fps
3.5” Pre-27: 1000fps
2.5” 66-7: 975fps
It’s a “light magnum” load. Honestly looking at the numbers it’s a lot closer to 38-44 than 357 Magnum. It was definitely a “Magnum” in the 2.5” K frame. Not abusive at all, but not a 38. In the big N frame it gave a little shove and some bark, but no big deal at all.
I roll crimped at the grove on the SWC’s. Had zero cycling issues at all in the Henry. 38’s in the Rifle feel like 22’s. These light magnums do bark a little but they seem like fun in the rifle. I’ll be loading more. Overall a nice little slice of time at the range.
158gr Summit SWC
6gr Win244, 1.58” COAL, SPP
17.4” Henry: 1300fps
3.5” Pre-27: 1000fps
2.5” 66-7: 975fps
It’s a “light magnum” load. Honestly looking at the numbers it’s a lot closer to 38-44 than 357 Magnum. It was definitely a “Magnum” in the 2.5” K frame. Not abusive at all, but not a 38. In the big N frame it gave a little shove and some bark, but no big deal at all.
I roll crimped at the grove on the SWC’s. Had zero cycling issues at all in the Henry. 38’s in the Rifle feel like 22’s. These light magnums do bark a little but they seem like fun in the rifle. I’ll be loading more. Overall a nice little slice of time at the range.
