How Long; How Far?

ronlaughlin · 07-23-2011, 09:24 AM

Bullet is 300g Deep Curl with a muzzle velocity of 1880 fps. The questions are: What is the time of flight? How far from rifle to jug?

Winner gets an autographed copy of SEMISANE' ramblings, first edition.

Note a portion of the jug, flying toward the camera, at the lower right just outside the water, with a reddish tint.

Muley Hunter · 07-23-2011, 10:05 AM

Is the mic at the jug? No way to judge it. By the time we hear the sound it hits the jug.

Josmund · 07-23-2011, 10:13 AM

202 Yards

.3223 Seconds

Muley Hunter · 07-23-2011, 10:18 AM

How did you come up with that?

50calty · 07-23-2011, 10:22 AM

That was cool, but I have no idea.

Josmund · 07-23-2011, 11:04 AM

Quote:

Originally Posted by Muley Hunter

How did you come up with that?

Let's see if I'm close and then I'll share. I want that collection of Semi's ramblings.

Semisane · 07-23-2011, 11:59 AM

That was 60 yards, .0748 seconds. There were 3,854,291 water droplets produced.

ronlaughlin · 07-23-2011, 12:23 PM

HINT: Camera records 30 frames per second. Pause the video, and count, using the arrow keys to move between frames.

ronlaughlin · 07-24-2011, 12:27 PM

HEAD0001 · 07-24-2011, 12:55 PM

It doesn't matter what time the primer pops. All that matters is when the bullet leaves the muzzle. I don't think you can tell that from your video. So you can't count frames to determine the time of flight. Tom.