Need help, went hunting and couldn't hit elk at 250yds, then 350yds, and 250yds again. Rifle is shooting high, way high, all of the sudden. I can't figure out what has changed. I shot it 2 weeks ago and had no problems. Talked to a guy and he said H1000 goes bad or unstable after a year or so. I have never heard anything of the sort on H1000 and cannot find anything relating to that. Any suggestions?