Originally Posted by tCan
Of those calibers 308 is only 300fps faster than 17HMR. If you really need the speed, .22-250 or .243. You're still going to have ~4" of drop from 100 to 200 yards....
At 200 yards the 308 is 800-900fps faster than the 17, that lightweight bullet the 17 uses isn't capable of maintaining its speed over distance. Also the 17 drops around 8" at 200 yards. The 223 is still around 1100 faster than the 17 at 200. Considering that he is talking about shooting 200 yards he will have to be at an outdoor range where weather is going to effect his shooting, mainly wind, any of the centerfire calibers mentioned are going to be able to perform more consistently than the 17 at the range desired.