GOEX chart shows 1920 fps, but it does not specify the length of the barrel.Does anyone know what the muzzle velocity of a .40 caliber PRB is with 60 grains of 3FG
from a 42” barrel?
I've done quite a bit of chrono checking and none of it with 40 caliber. But, I learned enough to be able to say with a high degree of certainty that if you could gather together 20 shooters all with 40 caliber guns with 42 inch barrels and have them all shoot ten shots over the same chronograph with 60 grains of 3f you would find that there is no definitive answer to the question.Does anyone know what the muzzle velocity of a .40 caliber PRB is with 60 grains of 3FG
from a 42” barrel?
That would be more realistic. There would be a range of numbers and most would follow close.I've done quite a bit of chrono checking and none of it with 40 caliber. But, I learned enough to be able to say with a high degree of certainty that if you could gather together 20 shooters all with 40 caliber guns with 42 inch barrels and have them all shoot ten shots over the same chronograph with 60 grains of 3f you would find that there is no definitive answer to the question.
It would be very enlightening though and would probably indicate a velocity range with very few extreme outlier results.
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