Re: There's a lot more heat than light in this thread, mostly from gun owners of the USA.
"I can do the math later, but multiple 375 watt video camera batteries is enough to discharge at least 10 shots at 35 watts each of energy transfer within a few milliseconds which SHOULD get me to at least 2000 MPH (3000 KPH) projectile velocities."
Arguing about politics and gun control seems to be a fairly fruitless exercise, so it's nice to be able to address a post that relies solely on fact. Watts are not a unit of energy, they are a unit of power. 35W for a few milliseconds will give you about 0.1J of energy transferred to your projectile. That's enough to accelerate an adult fruit fly to 40mph. While slightly faster than they normally fly, shooting someone with your railgun would be able equivalent to the impact when swatting said fly.
It would of course still be possible to get 2000mph projectile velocities, but you'd need something with a mass on the order of 0.3 ug. You could manage that with something like a small snowflake, for example.
Biting the hand that feeds IT
