OlympicViking
Member
- Joined
- May 23, 2017
- Messages
- 20
I’m in the process of loading up some 170 gr Kieth SWC freedom seeds over H110. I’m using bullets I bought from Rim Rock Bullets; they don’t specify what mold they use, but I’m 99% sure it’s the 358429.
https://rimrockbullets.com/xcart/-357-keith-swc-fb-170-gr-per-500.html
My Lyman cast handbook specifies an OAL of 1.553” and 14.4-15.0 gr of H110. Small aside, but H110 specifically states on the packaging that loads must never be reduced more than 3% from maximum, and .97 x 15 = 15.55, so I started at 14.6 gr.
The issue I’m having is that the specified OAL would mean I have to crimp at the forward driving band. I’m loading for a Smith and Wesson 686, and the rounds have plenty of room when I seat to the crimp groove with an OAL of 1.635”. My concern, however, is that H110 is rumored to behave unkindly at reduced loads, and if I load to the crimp groove like I want to, I’d essentially be creating a reduced load, even at the max charge of 15.0 gr.
I have Unique and 2400 I can use, but I prefer to save that for some different pet loads of mine. I have 8 lbs of H110 to get rid of so I want to use it for these heavy SWCs.
Does anyone have experience with this bullet and this powder? Absent any advice I plan to start at 15.0 and if need be I’ll slowly work up. I realize these bullets are very long and were designed for .38 Spl cases in N-Frame guns, and that 1.635” may not chamber in all guns, but I checked and they do chamber in mine, so that’s what I’ll go with.
https://rimrockbullets.com/xcart/-357-keith-swc-fb-170-gr-per-500.html
My Lyman cast handbook specifies an OAL of 1.553” and 14.4-15.0 gr of H110. Small aside, but H110 specifically states on the packaging that loads must never be reduced more than 3% from maximum, and .97 x 15 = 15.55, so I started at 14.6 gr.
The issue I’m having is that the specified OAL would mean I have to crimp at the forward driving band. I’m loading for a Smith and Wesson 686, and the rounds have plenty of room when I seat to the crimp groove with an OAL of 1.635”. My concern, however, is that H110 is rumored to behave unkindly at reduced loads, and if I load to the crimp groove like I want to, I’d essentially be creating a reduced load, even at the max charge of 15.0 gr.
I have Unique and 2400 I can use, but I prefer to save that for some different pet loads of mine. I have 8 lbs of H110 to get rid of so I want to use it for these heavy SWCs.
Does anyone have experience with this bullet and this powder? Absent any advice I plan to start at 15.0 and if need be I’ll slowly work up. I realize these bullets are very long and were designed for .38 Spl cases in N-Frame guns, and that 1.635” may not chamber in all guns, but I checked and they do chamber in mine, so that’s what I’ll go with.