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post #1 of 94 (permalink) Old 11-12-2010, 01:25 PM Thread Starter
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Myth or Fact

Does a bullet really drop then rise when fired?

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post #2 of 94 (permalink) Old 11-12-2010, 01:28 PM Thread Starter
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Re: Myth or Fact

IMO, its complete --. Though a shot will be low when fired at 25 yards, I think this has much more to do with the scope being 1 1/2" above the centerline of the bore than a bullet zigzagging. Maybe I'm wrong. I just can't see a bullet going down, then up, then down. I think it's dropping the whole time, and its the angle you view the target at that causes this discrepency.

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post #3 of 94 (permalink) Old 11-12-2010, 01:33 PM
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Re: Myth or Fact

Quote:
Originally Posted by steelerfan58
Maybe I'm wrong.
No...I think you're 100% correct.

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post #4 of 94 (permalink) Old 11-12-2010, 02:07 PM
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Re: Myth or Fact

If a rifle barrel is held level, the bullet begins to fall as soon as it leaves the barrel. Sights or a scope make the shooter raise the barrel from level thereby making the bullet rise and travel in an arch.

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post #5 of 94 (permalink) Old 11-12-2010, 02:11 PM
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Re: Myth or Fact

Quote:
Originally Posted by BUCKSLAYER15
If a rifle barrel is held level, the bullet begins to fall as soon as it leaves the barrel. Sights or a scope make the shooter raise the barrel from level thereby making the bullet rise and travel in an arch.
That makes perfect sense.
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post #6 of 94 (permalink) Old 11-12-2010, 02:18 PM
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Re: Myth or Fact

No way does it drop then rise. There was already a good explanation. Hold the barrel level, and the bullet drops immediately. Compensating for this drop to hit a target at 100 yards requires the barrel to be at an angle when shot although sight distance is still level, but above the barrel.

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post #7 of 94 (permalink) Old 11-12-2010, 02:28 PM
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Re: Myth or Fact

I agree with everything you guys are saying
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post #8 of 94 (permalink) Old 11-12-2010, 03:05 PM
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Re: Myth or Fact

Gravity is gravity, it starts dropping as soon as fired.

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post #9 of 94 (permalink) Old 11-12-2010, 03:19 PM
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Re: Myth or Fact

Yeah sorta maybe. The effect of gravity starts pulling a bullet downward as soon as it leaves the muzzle. The shape of the bullet, unless some peculiar airplane wing cross section (which means it is not symetrical) would not rise in that way. It is supposed to be a proven fact that plain balls fired from smooth bore cannon do rise above the line of the bore briefly from spinning forward. What I have been able to duplicate with my small cannon, is that an unpatched 75 caliber steel ball bearing fired from a smooth bore cannon does rise several feet above the bore line by the time it reaches 100yds. No matter how much I leveled the barrel, the balls kept flying over the backstop at Nockamixen (About 25 yrs ago.) I have read references to this effect in Articles about artillery re-enacting, and how dangerous it can be.
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post #10 of 94 (permalink) Old 11-12-2010, 03:58 PM
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Re: Myth or Fact

applying topspin to a ball is the premise of accurate long range "sniper" barrels in paintball. I have a 18" Dye stainless barrel that is both rifled and the groves are more dense on the top of the barrel producing a ball that spins toward the shooter at the top, this applies a lower pressure above the ball and higher below it and the ball rises (in relation to a standard ballistic trajectory) at a measurable level. the paint marker in question is a Tippmann prolite running CO2 with a MV of 325fps and the thing shoots dang near flat with a red dot out to about 60 yards where it falls off like a brick. but out to that range, paintballs will hit +/- 3" all the way out which goes against anything the ballistics tables say it should do.

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