I scored about 1k of those in blem form here back in 08 when I found my 6-250 loved em so much. I shoot water-filled recyclables at distances from 250-400 yards running them approx 3250 fps out of the gate. I've gone through about 900 of them now. They regularly leave behind jacket shards and lead dust, disintegrating almost completely. On dry phone books I've been unable to find anything but 6mm diameter jacket-bases when tested around 100 yards.
I really like frangible bullets on deer and lean toward NBTs over TSXs and these punch TINY little clover leaves through my rifle so I know I could put em where they belong.
All that having been said I'd not choose them or the 85 gr Sierra (which I've tested through water-filled laundry detergent jugs and found it to be lacking), especially in a 240 Weatherby. An 80 gr GMX (which MidwayUSA has in their blem selection right now!!) or a TTSX of the same weight would be the places I'd look.
YMMV
