That's a hunting rifle, not a sniper rifle.
There's a free sniper rifle at the Mole Rat Ranch.
Legionnaire Assassins that come after you when you have low Legion reputation usually carry a sniper rifle, but its completely broken and cannot be repaired with Weapon Repair Kits or even by NPCs; it is only useful for repairing other sniper rifles.
Your best bet for getting s sniper rifle early and safely is from the arms dealer at 188.
I nope it is' not a snipey, snippy..
Please read the post I replied to, the one above mine yonder.
It was about the hunting rifle, my earlier post refered to the sniper.
The one you quoted to correct applied only to fleapants post, that early on the OP may have better chance at finding a hunting rifle.
I provided all the locations before Boulder city where it's possible to find one.
However the legion assassin are the earliest to get one, you're very right there.
Also if you PO the legion at Nipton you can head to the road just next to Wolfhorn ranch and get those merchants to back you up for that fight.
Not sure if it's broken however, is that in the GECK or did it just get hit by your fire?