For elk, you'll want atleast a 348 grain powerbelt. Practice lots for those 175 yard shots, On an elk im sure it'll be quite a bit easier. If you have both elk and mule deer tags, just sight in with the 348 grain powerbelt so you dont have to keep two bullets on hand. I think you can shoot the 348grainer comfortably with 110-120 grains RS. What rifle are you using?