Killed a New Mexico mule deer buck in 2018 with the 143 ELD-X, a factory 6.5 CM load that was probably getting 2650 or so. The range was 101 yards, lasered after the shot. He was standing broadside in some oak brush, and the sensible clear shot was high on the shoulder. He went straight down. Found the bullet under the hide on the far side, the jacket and core lying next to each other, the two parts weighing 86 grains. It had broken both shoulders and the spine. Didn't get a chance to weigh the deer, but got exactly 100 pounds of boned meat, which is usually about 1/3 of whole weight.
My hunting partner killed an even bigger-bodied buck on the same hunt, with the same load. The deer was quartering away at 311 yards. At impact the buck did the little heart-shot jump, then trotted 30 yards and fell over. The bullet went from the left-rear ribs to the right shoulder, and the core was firmly in the jacket. It weighed 106 grains, 74% weight retention.
