[VadeRetro]

Now, if you let me use a .303 Lee-Metford bolt action rifle and you get an M-16A2, we can take pot shots at each other from 1000 meters ...

BWAHAHA!

I'm a .303 enthusiast myself, although I bet a Lee Metford (Boer War era) is a lot tougher to find than the ubiquitous Enfield.

[Junior]

That's why I chose it. The Lee Metford is roughly from the same era as the initial albedo readings of Venus and, if I remember correctly, it has a range out to about 2000 yards (the M16A2 has a range of about 400 meters).