I live at 30' above sea level and will be shooting a match next weekend at 5800'.
Will the difference in altitude have much effect of the velocity of my pistol ammo?
I'm shooting a revolver loaded with .38Spl . 170gr coated bullet over 3.2grs of Clays. I'm getting a velocity around 680-700fps (120PF). The minimum velocity I need is about 620fps (105PF), but I'd really like to have at least 675fps (115PF) for a little cushion.
Anyone ever run into a chronograph issue at higher altitudes?
Will the difference in altitude have much effect of the velocity of my pistol ammo?
I'm shooting a revolver loaded with .38Spl . 170gr coated bullet over 3.2grs of Clays. I'm getting a velocity around 680-700fps (120PF). The minimum velocity I need is about 620fps (105PF), but I'd really like to have at least 675fps (115PF) for a little cushion.
Anyone ever run into a chronograph issue at higher altitudes?