Got my antelope this morning with a 300 win mag shooting a 180 gr nosler partition, I know this is overkill but it is the only caliber rifle I have that is legal on big game in CO at the moment so I made due. Have to say I am more than impressed with the nosler partition though, shot was 217 yards on the goad at a dead run and went in behind rib cage on right side and broke the left shoulder and it never moved 2 feet after getting hit. I was not happy with these bullets when loading because of the variation of up to .3 gr in bullet weight up or down from 180 and with the flat base they are not the easiest to get started to seat but after seeing the results I cant complain too much. Cant wait for 4th rifle elk season now.