Do they require cooling units to fire continuously since there's no atmosphere or other such additions?
just blow on it
If temperature is the energy in molecules why aren't vacuums absolute zero?
>>62523428>Do firearms need modifications to operate in a vacuum?you should swap the lubricants with vacuum rated stuff. Apiezon makes some greases and I've also used Castrol's Braycote. most normal lubricants will just evaporate and you might have problems with vacuum welding.
>>62523428that's a big meme. Scientists have only been able to replicate that under lab conditions. When they tried replicating the same outside the ISS they weren't able to even after abrasing the contact surfaces
>>62523484>you might have problems with vacuum weldingIf the gun is used and has carbon, or is painted or anodized there should be enough shit between metal that prevents cold welding. Even the ruff surface should prevent cold welding.
>>62523454You answered your own question
>>62523428prob. just a quick change barrel
>>62523454Ill give you a big reason while you think about how stupid you are
>>62523454Vacuums are absolute zero. Things get hot in vacuums anyway because radiation is not the same as conduction. Hope this helps.
>>62523428in a vacuum wouldn't a crossbow be more useful?
>>62525342>Even the ruff surface should prevent cold welding.sure, but most bearing surfaces are smooth and uncoated. think sears, guide rails all the bearing surface. rollers in delayed guns, the whole freaking bolt+bcg system for an AR.
>>62526392theres oil
>>62526392So then revolvers would work best?
>>62523428When does the vacuum start? What is the border between vacuum and atmosphere?
>>62523454vaccums literally are absolute zero
>>62526305Not enough muzzle velocity, you're not hitting shit at orbital ranges with a crossbow.
if space warfare is a thing, would it make sense to develop air rifle that shoot out fletches to pierce enemy space's suit? no worrying about overheating
>>62523428Gyrojet is the answer
>>62529034"Vacuum" is just an arbitrary cutoff. There's no barrier, the air just gets thinner and thinner until there is so little that it is considered vacuum.
>>62523428They should work fine, for a while. The only issue is that metals can weld themselves together in space if they wear too much. This doesn't happen in atmosphere because a protective oxide coating normally forms instantly when fresh metal is exposed. This oxide layer prevents welding.But maybe this won't be an issue due to the coatings on most parts.
