When I go to shoot something at long range I can't see it until I get fairly close (for a sniper) to the target.
I can be perched on a hill a LONG way away, and see a building. I can look through my scope and see the door frame on this building - it stands about 2-3 mill dots high.
I have to get MUCH closer before the person appears in front of the door - and only stands 1/2 a mill dot shorter than the door.
Range and accuracy were mentioned as an anti .357/.44 mag argument. This is irrelevant, as you cannot see far enough away in NV to shoot beyond the max range of these bullets.
With a .50 Cal sniper rifle I should be able to get on the roof next to the ranger ghost in Mohave outpost and snipe powder gangers in Prim.
By the way a sneak attack critical with the Brush Gun + Cowboy + .45 -70 SWC hand loads - out DAMs the AMR.
For the record the only lever gun to fire a RIFLE round is the .45-70 (Brush Gun).
In DLC, I would like to see a buffalo rifle (add it to the cowboy list), chambered in say .45-110 & make a scope mod available.
Back to my original point - you can't see far enough away to argue that your .308 can shoot farther away than a lever gun.