LTLR, Has shot a ton of stuff on here w/tsx. I have shot them for years usually in a lighter weight for caliber but not always. They are a very tough bullet and super penetrate and retain more weight than a AB. I have good accuracy from both. In my 340 tsx usually shot through elk. I have shot a 3/8 group at 100 w/257 w/tsx. My son shot a bull at 540 w/180 tsx and 325 wsm, I shot one at 501 w/200 NAB, DROPPED in tracks, I shot higher by not taking enough for steep angle. I hunt in alders alot and use to pack a clip of each, they shot very close to 400, 180 tsx/200 NAB IN 325WSM. I have shot quite a few NAB 225 and I am working on 250 for the 340 this winter. I like the NABS and shoot them quite a bit.I timber shot a bull and recovered NAB 200 on far side, broke opposite shoulder about 4'' from knuckle, at heavy part of blade, kept about 65% weight. I may load some 250 or 300 for my Norma in NAB for timber.