The Firing Line Forums - View Single Post

Fingunner · July 20, 2013, 12:29 AM

Thanks guys.

They're taken with high speed flash and it allows to photograph what happens in one millionth of second. There is option to tune picture also by 1/1.000.000 second steps. This won't make much sense though because even if we consider primer ignition and powder burn pretty consistent they actually aren't. I have noticed that there is roughly 15% variance (μs scale) when bullet exits barrel. The closer I want bullet to be the barrel, harder it is.

Setup seems to capture also pressure wave:

Bigger pictures:
http://kuulapaa.com/home/highspeed.html

July 20, 2013, 12:29 AM	#17
Fingunner Member Join Date: July 7, 2013 Posts: 66	Thanks guys. They're taken with high speed flash and it allows to photograph what happens in one millionth of second. There is option to tune picture also by 1/1.000.000 second steps. This won't make much sense though because even if we consider primer ignition and powder burn pretty consistent they actually aren't. I have noticed that there is roughly 15% variance (μs scale) when bullet exits barrel. The closer I want bullet to be the barrel, harder it is. Setup seems to capture also pressure wave: Bigger pictures: http://kuulapaa.com/home/highspeed.html Last edited by Fingunner; July 20, 2013 at 12:36 AM.