I used the varmint rifle til about level 20 and took the time to stock up on ammo for other guns. But the hunting is pretty good but I use the antimaterial rifle for a lot now.
On my sniper character, I used the Varmint Rifle up till .. I dunno, Whenever it was I first found a hunting rifle, which if I'm not mistaken, was still decently far into the game. However, I'm planning on making another sniper character (My first char was a sniper, but obviously, being my first, his perks weren't the best choices)
I will avoid all the VATS perks again, because as a sniper, VATS is all but useless. (VATS has FAR less range than my scope, most sniper rifles take more than half my AP for one shot in VATS, and scoping in on a target in real-time is much more rewarding, but mostly the first thing about VATS range) but I REALLY want the meltdown perk for the YCS/186. Can you imagine a chain reaction on a group of cazadores or legion? lol.. Caesars tent... man. Anyway, yeah, back on topic...
If you just want something that does more damage than the varmint rifle, there are two cowboy repeaters in the sheriff's house/shack in the northern part of Primm, ones under the bed, the other under the reloading bench. I don't personally like the peep-sight, but it does more damage than the varmint rifle. Also, if you need more repairs on it, you can snag two at the NCR mojave outpost, but you gotta be tricky about it, by shooting them out of rangers ghost and jackson's hands.
However, I personally want to know the very earliest one can find a hunting rifle, as that is probably my favorite gun in the "early" game (with all the mods), save for the AMR, YCS, and Gobi. The problem is, finding the scope so it can actually be used as a sniper rifle, lol.
