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Powders other than Trail Boss for Black Powder Equivalent Loads?

Discussion in 'Blackpowder' started by flmason, Jul 7, 2009.

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  1. flmason

    flmason Member

    Jul 1, 2009
    Hi All,
    I was informed in another thread that Trail Boss is good for reduced action match loads, but may not actually come up to the old .45 Colt 40 gr. BP load performance levels.

    Are there other smokeless powders that would acceptably match BP performance but be safe in a Kirst or R&D cylinder?

    Have to admit I'm a fan of C&B revolvers in and of themselves, but not black powder and percussion for the most part (though ironically I'm dieing to try out a flintlock Hawken or Pa. style rifle, LOL!)
  2. Pulp

    Pulp Member

    Aug 30, 2007
    Valliant, OK
    TrailBoss and TiteGroup are the two powders I've used when not loading black. Accurate 5744 will also work, but it will leave unburned powder in your barrel, not a problem, that's just the way it is with low pressure loads.
    TiteGroup seems to have a louder bark and more recoil than TrailBoss. TiteGroup and 5744 would be easy to overload and get higher pressures.
    Best bet is to look at the websites of the powder companies. Most have loads specifically for Cowboy Action, and all should be safe in a conversion cylinder.
  3. bonza

    bonza Member

    Feb 2, 2007
    Inland NW, USA
    Take a look at IMR SR4759 also. Quite a bulky extruded powder that operates at lower pressures. I used to use it alot in a .38/55 rifle, but is useable in pistol calibers too. It is also commonly used in BP/Smokeless duplex loads.
  4. BHP FAN

    BHP FAN Member

    Sep 23, 2008
    Northern California
    HP 38 works pretty good for me...
  5. ArmedBear

    ArmedBear Member

    Sep 8, 2005
    Just about any powder listed.


    Trail Boss does not have a particularly low pressure at a given velocity, vs. HP-38, PB, IMR 7625, or whatever you can name.

    That doesn't mean load 'er up, of course. Be careful. But IMR 4756 for example is a lower-pressure powder in .45 Colt than Trail Boss is.
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