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This old graph was made by Walt (Twanger). This is calibrated for a White 97 using Triple 7 FFg but can be used to approximate your muzzle velocity from most any (non-smokeless) m/l rifle for a given load volume and bullet weight. Figure if the powder is hotter, add a bit and if the powder isn't as hot as T7 FFg subtract a bit. It should get you in a close ballpark of what your rifle/load will actually produce.
Divide your VOLUMETRIC powder charge (in grains) by the actual weight (in grains) of the projectile, find that spot on the horizontal axis and go straight up to the blue curve. Where it intersects that curve, read the velocity directly to the left on the vertical axis.
As you can see, there is also a line calibrated for the White Javelina and T7 FFFg. That should yield results very close for the CVA/Traditions/Knight or any other long barrel single shot BP pistol.
SabotLoader and/or Cayugad, you guys might want to save this somewhere in case I lose it on my host. Fairly useful graph.
Divide your VOLUMETRIC powder charge (in grains) by the actual weight (in grains) of the projectile, find that spot on the horizontal axis and go straight up to the blue curve. Where it intersects that curve, read the velocity directly to the left on the vertical axis.
As you can see, there is also a line calibrated for the White Javelina and T7 FFFg. That should yield results very close for the CVA/Traditions/Knight or any other long barrel single shot BP pistol.
SabotLoader and/or Cayugad, you guys might want to save this somewhere in case I lose it on my host. Fairly useful graph.