I once saw an episode of Cowboy Beebop where the guy bungles a space walk so he pulls a Glock out of his waste band and shoots in the opposite direction to push himself back toward the ship. I guess it would work then. :)
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I once saw an episode of Cowboy Beebop where the guy bungles a space walk so he pulls a Glock out of his waste band and shoots in the opposite direction to push himself back toward the ship. I guess it would work then. :)
He'd have died on impact if it was a G20 after he hit the ship.Quote:
Originally Posted by Stuart
10mm. Not even safe in space.
lol
On a typical hunting cartridge like the .308, the point of impact shift is only 1" at 300 yards going from sea level to 9,000ft., everything else being equal. The effect gets larger as range increases. For example, the same .308 at sea level is going 1050fps at 1000 yards and is probably unstable. At 9,000ft, velocity is north of 1,300fps, still supersonic, and still stable.
A bigger deal might be the reduced temperature going up from sea level. Most powders are temperature sensitive giving less pressure and velocity as temp decreases. Depending on the powder type and temperature change, this effect might swamp any issues due to air density.
Note, increasing humidity decreases air density, counter to what it feels like to us. So, high, hot, and humid lead to best ballistic performance. Low, cold and dry are worst.
Very interesting stuff everyone. Thanks for the tips.
So for the average shooter, these variations likely will not make much difference. But to the competition shooter, or trained and skilled sniper I would assume all of the factors would make a big difference. Correct?
There is one show that keeps coming to mind that I watched on the History channel. It was Sniper something. I have it on my DVR at home. Its not Modern Sniper. But anway, it is a 2 hour show dedicated to what they thought some of the best confirmed Sniper shots that have been made.
The one that keeps popping to mind is a candaian sniper in Afgan with the Baret 50cal. Made I think a mile an half long kill shot. one of the voice over comments was somethign to the effect of; The success of the shot at that range may have been some of the partial contributions of the higher altitude and the very hot day. All decreasing the drag because.
I recommend checking out the entire show to see some really cool shit.
Here it is.... the whole show focused on several shots. I think there were like 5 or 6 or so that they covered in the video and then tried to recreate the shot today using similar setup/equip/enviornment.
Sniper: Inside the Crosshairs
http://shop.history.com/detail.php?p=254215
I watched that show twice, back to back.
I did watch that show too. I will watch it again as I'm sure I missed a loyt of it.
Thanks
Quote:
Originally Posted by funkfool
looks like good info from the parts I looked at, thanks for the links