I've used the Barnes XLC's (Blue Meanies) in my 7STW on Mulie and Lope in Wyoming. I've never seen animals drop so fast. Accuracy SUCKED!!!! I mean really sucked!
I heard the TSX's have better accuracy.
I personally never hunted Grizz or been around them. I have been around black bears as close a 15 feet. There are a lot of there in my part of NY since I'm right near the New Jersey border and they are protected there(no more Jersey bear hunt! Too many tree-hugger protesters!) Those black bears run away quicker than deer. I've heard that grizz aren't that cowardly.
If I did hunt Grizz I would want a good back up weapon...or two! Preferably a sidearm for quick access. As far as weapon I would use my 338 Lapua, and this is one time I wouldn't use the 300 matchking. I personally do not have a problem with recoil, but many do and I think that they actually may do themselves and those around them a dis-service using a .416 or something too hard kicking for them. I would think its better to hit the grizz in the vitals with a 300 win mag than in the ass with a .416 weatherby. I do think that a 300 win mag is undergunned for a grizz, but I guess its better that a bad shot. I would think 338 would be minimum. If I were to use a .30 cal I would choose a ultra-mag or weatherby caliber and not a win-mag.
I've shot a deer a few years back with my 12ga shotgun at 56 yards and he ran about 50 yards before dropping in his tracks after being shot in the heart. I wouldn't feel comfortable with a shotgun for a grizz. Although its better than a golfclub!
My Wyoming mule deer
dropped in his tracks with a neck hit from a 140 barnes xlc from my 7STW. Lope did the same thing from a front shoulder shot. (No lungs!) The mulie was 216 yards and the lope was 48. I'm not saying that they are anywhere near a grizz, but instant death without hitting the spinal cord is impressive with any animal.
If someone had bullet failure with the barnes I'm surprised. Not saying it hasn't or couldn't happen just a little surprised. I've never used the Woodleigh's but I have heard that they are excellent dangerous game bullets.