MTMilitiaman
Member
So I messed around with a few loads from my 10mm. I shot a 175 gr Silvertip through about 4 inches of water into waterlogged sand at the edge of a river. I was on top of a train tressel a good 50 feet or so above the ground. I tried the experiment again with a 180 gr Gold Dot loaded by Double Tap, but was down on the bank underneath the tressel. It got me thinking about the effects of gravity on a projectile when fired downwards from an elevated position.
Does gravity still accelerate a projectile such as a bullet when it is fired downwards? Or does that fact that the projectile is already far past its free-falling terminal velocity mean that gravity can no longer accelerate it, but merely reduce the rate at which is loses velocity due to air resistance? In other words, would that Silvertip have an impact velocity greater than, or less than its muzzle velocity? How much so?
Does gravity still accelerate a projectile such as a bullet when it is fired downwards? Or does that fact that the projectile is already far past its free-falling terminal velocity mean that gravity can no longer accelerate it, but merely reduce the rate at which is loses velocity due to air resistance? In other words, would that Silvertip have an impact velocity greater than, or less than its muzzle velocity? How much so?