TreestandEd...somewhere back on another thread I commented on my M/L elk hunt this past September. I took a real nice 5x5 with 100gr of 777 2F powder and a 348 gr. Powerbelt Aerotip. He was only about 80 yards out when I shot (after working him for over a half hour+) and I smacked him just a bit high, but when I did, he side stepped twice and tipped over like a ton of bricks. He was angling slightly and the bullet lodged against the hide on the opposite side. The bullet was basically 100% in tact and was a perfect mushroom. Excellent bullet performance!! (Also in CO you cannot use sabots, so this was the perfect solution with a full diameter caliber bullet)