Makes sense. Develop new powder, increase the price, then discontinue the old powder. ;)
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Guess the no unique was a blessing. I was shooting my 16" m92 with a few different loads and the 255gr swc I've always shot over unique in my Blackhawk shot like trash with unique and velocity wasn't great. Same with the new 270gr bullets I just got.
They shoot great in my mountain gun.
I then shot a few of my saved 250gr XTPs over 2400 and accuracy was great. Velocity was much better as well.
I'm hopeful that the true blue powder is slow enough that my carbine likes it. At the very least I know the carbine is set for hunting. I haven't shot it in a couple years.
Fwiw 9gr unique under a 270gr swc gets 950fps on the nose from a 4" barrel and 1178 fps from a 16" barrel.
The 2400 load is 18gr under a 250gr xtp. I get 950fps from a 4"
barrel and 1403 from a 16" barrel
Attachment 98335
Some of John Linebaughs writing:
https://www.johnlinebaughcustomsixguns.com/writings
I think you 45 Colt guys will like this.
Bob
ETA: This wasn't the article I thought it was, here's a collection of Linebaughs gems, FWIW, his carry gun at the time this was written was a S&W Model 25 in 45 Colt:
http://www.reinfjord.net/art/Gun%20N...0Linebaugh.pdf
The shotgun powder Red Dot performs very well in 45 Colt standard loads. The large powder capacity in this case dictates selecting a powder that will not be position sensitive, will produce desired velocity within standard pressure range, and do all this with minimal shot to shot variation. Red Dot does not meter well unless a trick or two is employed. Old shotgun shooters usually have a supply.
I’m a little late to the thread…
I shoot mostly HS-6 and Longshot in 45 Colt, depending on what I’m trying to do. For HS6 data in particular, I would also recommend the Linebaugh article posted above. HS6 is awfully versatile as long as you keep pressures above mouse farts.