I’ve used it in both my 44 mag and 480 Ruger. Seems just a tad slower than H110/296. Works nicely in the 44 and really well in the 480. It’s my go to powder in the latter nowadays. Haven’t tried it in any GNR chamberings tho.
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Power Pro 300-MP powder
- Amede, 2019-08-12, 12:11
- 300 MP - Shawn D, 2019-08-12, 22:17