I've come into a life time or 2 supply of Green Dot powder. Have loads for .38 spcl , and .357 mag worked out. Looking for data for .45 Colt with 255 gr , and 270 gr cast bullets in a Colt SAA. Any information would be appreciated !
Green Dot powder
- Thread starter leemar28
- Start date
Look for a 15-20 year old data manual.
Lyman #47 has .45 Colt data for their 255 gr #452424 cast bullet:
4.5 gr - 6.5 gr Green Dot (producing 500 fps to 765 fps), with Winchester cases & primers, and 1.575" OAL
No pressures were listed, and the test firearm was a 7.5" Blackhawk, but the velocities look pretty low and the book does NOT say "Blackhawk or TC only"...
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DeletedMember275
Hunter
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- Apr 17, 2002
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I don't have a Colt SAA, but use 7.0 grains of green dot behind a 255 grain RNFP or SWC lead bullet for around 800-840 FPS in several Blackhawks and a Charter Arms Bulldog XL.
None of my manuals has any data for Green Dot and bullets over 255 grains, it is likely not a good combo to try, especially in a non- Overbuilt Ruger
^^^Green Dot would seem to be 'too fast' for this application??
Maybe, but powders also have pressure ranges where they work best, and that may not be a good match. Certain faster powders might be ok, but more likely something like Unique or slower would be better to use. Get some manuals and it will be more clear, stick to proven recipes, especially with a Colt
