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Thread: Swiss Granulation in 45-70

  1. #1
    Boolit Buddy
    Join Date
    Mar 2010

    Swiss Granulation in 45-70

    I am going to work up some hunting and Target loads for a 1874 Shiloh Sharps in 45-70. I use Swiss ff and fff in my muzzleloaders but see some use 1.5 for cartridges. I would like to learn about powder selection and welcome your thoughts.
    Perhaps my learning skills have diminished in my senior years.. 50 years ago I could read something once and then "have it"... Now I read it about three times, do it a couple of times and then... "have it" only about half the time.

  2. #2
    Boolit Grand Master Don McDowell's Avatar
    Join Date
    Jan 2008
    Hell Gap Wy
    Use what you have on hand, start with the bullet seated to just kiss the lands and enough powder under a .030 or .060 fiber wad to just give firm contact with the base of the bullet. Add more powder and compression from there.
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  3. #3
    Join Date
    Feb 2013
    Boulder CO
    FFg will likely work fine. When you get deep into the dark arts of BPC loading, you may wish to explore 1.5 Fg and hire an Exorcist. In the mean time, there's no better starting place than that described by Don above.

  4. #4
    Boolit Grand Master

    Join Date
    Mar 2013
    Northwest Ohio
    Another for start with no compression no air space and work up from there. This gives you one direction to go increasing charge and compression in each step. Compress with a die and not the bullet. As compression increases the soft BP bullets may be deformed with the pressure to compress and seat.

    A simple dummy bullet can be made from hard wood aluminum or brass, this allows the seating die to be used compress powder. make it .010 under bullet dia so its easily removeable from the case. use the heavy wad under it to compress. When this is done and right the seaters setting for the bullet is the same for the compression plug. Make it slightly long and file polish bottom till its the same.

  5. #5
    Boolit Master
    Join Date
    Dec 2008
    I think you'll be able to find a good load with any of those granulations. I use Swiss 1.5 but just because use it in most of my rifles. It was pretty easy to find good loads for my .45-70 Shiloh Sharps rifles. If I wanted to shoot long range with the .45-70 I'd develop a load with Swiss FFFg.


  6. #6
    Boolit Master

    Boz330's Avatar
    Join Date
    Jul 2006
    Central Kentucky
    Every gun is a little different but when I was shooting Swiss I found the 2F gave a little better groups than either 1.5 or 3 in my testing.YMMV
    Swiss number granulations seem to be a little finer that the American made powders. This is me looking at the powders side by side, not actually sifting them through a screen. As Don said use what you got and see what happens.

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Abbreviations used in Reloading

BP Bronze Point IMR Improved Military Rifle PTD Pointed
BR Bench Rest M Magnum RN Round Nose
BT Boat Tail PL Power-Lokt SP Soft Point
C Compressed Charge PR Primer SPCL Soft Point "Core-Lokt"
HP Hollow Point PSPCL Pointed Soft Point "Core Lokt" C.O.L. Cartridge Overall Length
PSP Pointed Soft Point Spz Spitzer Point SBT Spitzer Boat Tail
LRN Lead Round Nose LWC Lead Wad Cutter LSWC Lead Semi Wad Cutter
GC Gas Check