.22 is fine for 75 to 100m if it's at a fixed distance and your scope can handle the elevation, you may need to shim it for such a distance as the pellet drop is huge. Remember your "groups" will get worse the further you go, so you may find even hitting tin cans is a challenge and your totally wasting your time with any kind of breeze let alone wind. Personally I'd go less distance and try to challenge the accuracy rather than trying to stretch the range with far less accuracy - but give it a go and see how you get on. Paper plates would be a reasonable target