I'm in the same position as the fellow up above, in that I'm wanting to keep a record of my shots (with a rifle I just finished after owning it for over a year).
What kind of information do you keep in one of these? Pasting your target in sounds good, and obvious stuff like ammo type/load. What else though?
How about number of shots that day, adjustments made, temperature,wind or is that a waste of time?