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Loader9 · August 1, 2008, 10:19 PM

Trail Boss is slower than 231 but faster than Unique. The maker, ADI of Australia, markets it thru Hodgdon under the IMR banner. It's intended for low velocity, high density loads meaning it's bulky. For a 255 gr bullet in the 45 Long Colt, a max load is 5.8 grs and velocity is under 1000'ps depending on your particular handgun. It's not going to make 1100'ps with a 300 gr pill even at max loads as the pressure is going to spike and quick. There are far better powders out there for what you are trying to accomplish.

August 1, 2008, 10:19 PM	#4
Loader9 Senior Member Join Date: July 29, 2008 Posts: 949	Trail Boss is slower than 231 but faster than Unique. The maker, ADI of Australia, markets it thru Hodgdon under the IMR banner. It's intended for low velocity, high density loads meaning it's bulky. For a 255 gr bullet in the 45 Long Colt, a max load is 5.8 grs and velocity is under 1000'ps depending on your particular handgun. It's not going to make 1100'ps with a 300 gr pill even at max loads as the pressure is going to spike and quick. There are far better powders out there for what you are trying to accomplish.