Gun Control & RKBA

I have a Winchester in 300 Winchester Magnum.

It can hit at 600 meters in skilled hands, but unless you are going to spend a LOT of time at the range, custom load your ammo it's pretty worthless for anything other than hunting.

Sure, if I were an assassin it would be a deadly thing, but for a professional assassin the legality of, and acquisition of any firearm would not be an issue.

The feasibility of such a firearm for any crime short of a highly planned assassination is minuscule. Expensive, bulky, *LOUD*, slow rate of fire, heavy. Really only good for hunting elk and target shooting.

Any and all data about the range of a rifle is almost entirely dependent on the skill of the shooter and quality of the ammunition.