I could be accused of hunting bigger game by some with a marginal caliber but never accused of hunting those same animals with a marginal bullet! Match your bullet to the game/situation you face and you'll be glad you did. I agree with those who said you can't compare different game results to come up with a conclusion on which bullet to use. Personally I use BT bullets for deer and antelope & the others (elk and Moose) get solid constructed bullets as mentioned. Different application require different tools, IMO a bullet is part of your tool chest...you wouldn't use a hammer when you needed a sledge, albeit it would work it just isn't the most practical choice for the job!

My advice is stick to the bullet that is intended for the hearty elk variety. BTW saw a Ultra Corelokt blow up on a whitetail buck this fall, distance was approx. 100 yards out of a 3006 hit him forward in the sholder and frag'd completely apart, luckily he put a second shot in the bread basket otherwise that buck would have been a statistic. I will say the bullet failure was in part shooter error but I certainly wouldn't want one in the pipe on an elk or moose after seeing that result, simply isn't strong enough IMHO.