Re: Flatest shooting cartridge
A 220 swift will do the job if he is looking for a factory rifle. Shoot a 50gr B-tip or v-max and you will be fine. You can even go to 55gr or 60gr bullets. I have shot deer out to 500 yards with a swift using a 50gr B-tip traveling at 3995FPS. You will not have a problem with dogs out to 400 or 500 yards.
Fast, Flat, and Accurate