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Ruger Old army cylinder mod

Discussion in 'Blackpowder' started by frosty, May 25, 2006.

  1. frosty

    frosty Member

    Apr 8, 2006
    Has anyone on this forum had the cylinder bored out on there Old Army? At this point in time, about 47 gr of Pyrodex P will come within 1/16" from the top of the cylinder face with around 3/8" compression to seat my bullets. There are no signs of problems, but I could stand to gai a few more grains, because I'm taking it as a primary weapon pig hunting. Penetration testing has shown good results, but more would be better when it comes to pigs. How much of an increase do you get:scrutiny: :evil:
  2. Manyirons

    Manyirons member

    Dec 21, 2005
    ALL of mine includin tha spare cylinders. One a tha smiths standard modifications, dependin on type of powder and tha granulation, expect about 5 ta 7 and a half grains extra.

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