I have recently (six months ago) purchased an Anschutz 64 MPR and have been shooting it at 50, 100, 200 and 225 meters using a Harris bipod and Protektor rabbit ear bag (the longest safe distance I can go on the family farm). It groups comfortably inside 1 MOA at these distances (actually well inside 0.5 MOA at 50 meters), but my main interest is to explore its accuracy out to 300 meters. I have a Leupold VX3 6.5-20X 50mm side focus scope with a Varmint Hunter’s reticle. The scope is mounted in BKL 303-MB low rings and sits perfectly about 1/8" above the barrel. For distances longer than 100 meters I shoot Federal 510 ammo, which buys me an extra 6-8 minutes of elevation over the SK JAGD Rifle Match subsonic ammo that I use for 50 meters (and sometimes at 100 meters). I think I have enough elevation left on the scope to get out to 250 meters without going to an angled base or Burris Signature rings. My idea right now is to keep the scope mounted as is (no angled base or new rings) and try it out to 300 meters using the elevated hash marks in the Varmint reticle for extra elevation. If the rifle continues to group as well at the longer distance, I would consider the Burris rings or a sloped base. Would appreciate any comments or feedback from anyone with interest or experience in shooting .22LR ACCURATELY at longer distances.