Going up the crane is a pretty decent idea. I used it and was able to snipe a couple of them, although I actually ran out of ammo so had to run away.Wilbot666 said:Go back at level 40.
Have 100 Sneak. Use Stealth Boy to break it completely.
Load up the HoloRifle+ and snipe every creepy in there from the top of the gantry crane sticking out of the ground.
Success!
Basically, a Deathclaw is best dealt with from far away. Use armour piercing rounds, and aim to cripple at least one leg as soon as possible. The Dart Gun in F3 was great because it massively slowed them down, but unfortunately, that's not an option in NV. Just try and stay as far away as possible.
Also, never ever ever go into Dead Wind Cavern. Ever.
Ever.