Forum:Best Sniper Rifles for icing Crawmerax

Open for Idea, I have kiled CM a coulpeoftimes but am still looking for some good pearls, so i was wondering if anyone coud offer their perspective about which sniper rifle i should use to kill that giant crab bastard. I usually enter with high level liquid orion, high level volcano, GIVE SICK and a Liquid penatrator with x2 caustic, i have pretty much all of the other orange rifes, no Bessie pearl however.