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- Sat Dec 09, 2017 6:41 am
- Forum: revolvers
- Topic: 300MP vs WW296 vs WC297 vs H110
- Replies: 4
- Views: 2282
I have a Ruger Blackhawk with a 5.5" barrel and have been loading with 18.6 grains of 300MP exclusively for 158 grain cast PB bullets. I do not own or have access to a chrony, but I really enjoy this powder in the 357. have loaded some 140 grain with 20 grains and still seems to be a great powder. E...