I'm sure someone here knows better than me, but the navy's big guns are capable of shooting a 2,000lb projectile 25 miles with pretty insane accuracy. I believe

I'm sure someone here knows better than me, but the navy's big guns are capable of shooting a 2,000lb projectile 25 miles with pretty insane accuracy. I believe the navy uses these guns all the time. Is sounds like the rail gun will be used for a different purpose than the big warship cannons though.