It depends slightly on caliber. I assume you mean a 50 cal, hunting style gun. It also depends on brand. Switching from Goex to Swiss in the same granulation nets higher velocity. Assuming you stay with the same brand, going from 2f to 3 f will usually, (but not always) produce higher velocities when compared grain for grain. 3f tends to burn a bit cleaner in most guns. In medium to longer length barrels, switching to 3f can have lower velocities with light to moderate loads. (The 3fg is consumed before the ball reaches the muzzle and friction starts to slow the ball down. )
As a rule of thumb, I'd say the difference of about 10% is probably close, but each gun is different. percussion is different than flint, etc.
using 3f in the pan is slightly slower to ignite the gun. But it is a matter of perhaps a hundredth or two of a second.
As a rule of thumb, I'd say the difference of about 10% is probably close, but each gun is different. percussion is different than flint, etc.
using 3f in the pan is slightly slower to ignite the gun. But it is a matter of perhaps a hundredth or two of a second.
