My wife shot a big doe at 19 yards once. Impact velocity was about 2950fps. Went through a full stomach, exploded the liver. and came to rest against the offside skin.Recovered bullet was about 0.6" and weighed 95gr. It also punches clean through antelope at 400 yards.
I'd still prefer the TTSX on elk. You are talking a 6" group at 400 yards with a 1.5" group at 100. Been years since my health allowed me to hunt them, but I still remember elk being pretty large animals.
