5k to 8k. wore out 3. no rhyme or reason to how many it took. My last one I actually wore out the barrel the trigger and the rear trigger pin in my Remington 700.
Once you focus your reticle correctly you should be good...Done. Now the question is did you focus it correctly? Use the sky or a light background. Once focused, step away from the scope, come back to it and look through it, the reticle should be sharp the second you look through it. Don't wait...