This is "generalized" for a very specific .22 round class: Maximum range varies according to the ammunition selection used, platfom selected, angle of travel, and compensating factors. Low end speeds of approximately 500 ft/s, for up to 400 yards, are average with maximum speed depending on the round type selected and platform. An object the size of a .22 round traveling at 500 ft/s can inflict a serious wound, or in some cases cause death depending on which area of the soft tissue entered and the type of bullet. The best strike zone, given a match of certain ammunition, platform, and shooter, for tactical use is within 300 yards with the ideal being at 172 yards for most special rounds. Average low end terminal range is around 500 to 600 yards depending on factors. Depending on the slant angle, range can be a little more (up to about a mile and a half) or less. 45 deg is considered the optimum angle for maximum range but flight characteristics vary greatly so it might not be optimum for every round, some have suggested up to about 60 deg with specific rounds. Maximum terminal ballistic capability occurs at speed suitable for the bullet mass, max speed and bullet mass suitable speed are not the same thing.

The CCI rounds you guys are using, its completly different, but much of it is roughly the same. So realistically, at about 150 yards your CCI rounds are deadly, at 200 yards they are seriously dangerous, at 500 yards they are dangerous but not a big worry, and at 800 yards "where did it go?"