I also found that ammo isn't really that much of a problem when starting, in the first few hours I found an outpost named 188 something that has a trader and a gun runner near Freeside that has a lot.
It only needs caps but that's what casino's are for
Does anyone know if there is a gun in Vegas like the Terrible Shotgun from FO3 i.e. an automatic Shotgun?
And a gun like Lincoln's Repeater?
the brush gun is like lincolns repeater. although it looks like a garand IMO.
costs 7000 caps from gun runners. cant get a scope for it though which sucks..