I own the Savage LRH in 6.5x284. Also own a Cooper in the same caliber. Both rifles are remarkably accurate with the ballistics to handle targets and game out to1000 yards. For what you describe, hunting from 500-1000 yards etc. the 6.5x284 will out perform the Creedmore in all aspects. If you set your game limit at 700 yards, the Creedmore will do OK. To effectively kill game at 1000 yards with any caliber your barrel life will be lessened, but no worse and perhaps better with the 6.5x284 than the belted,and short magnums. The light recoil of the 6.5x284 is an added advantage compared to the heavy magnums. I believe the 6.5x284 is well worth consideration. below is a 500 yard group shot with my Savage LRH. IMHO.