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george wrote:
I do think picking up the brass afterwards would be a big problem, though.

That could get me to shoot steel and buy a nice magnet. :)

Ericstac wrote:Wonder how accurate the gun would be? It would of course have to be re-sighted in but even if sighted in for outer space would the bullet fly the same path each time?

Maybe someday we'll be discussing the grouping we can achieve at 20,000 miles?


Seriously, that is a good question.
In reality, is shouldn't be much different than what we see here when in a controlled environment like an indoor range. The only variable you'd experience in space vs. here is the lack of air, so if you can control the air down here and keep it as a constant for each shot, the 'accuracy' could be measured the same.

C-dub wrote:
The recoil thing is also interesting.

Recoil is no different than here on earth. If you're holding it, it would recoil just the same. If the gun was floating when fired, both objects would move apart from each other just like they would here on earth as well.

C-dub wrote: Cooling, isn't it pretty cold in space? Why would heat build up be an issue?

This is one thing people don't realize about space. Yes, it's cold, but there's very little heat transference. You need contact for that. Heat would actually leave an object much quicker in ice water than in space due to contact and heat transference. In space, an object actually retains its heat fairly well relatively speaking.