I was reading a few posts on other forums a couple of days ago from people who complain about their scope's ocular lens (also known as a fast-focus eyepiece) having some play or wiggle when turning it clockwise or counterclockwise because it doesn't have a lock ring, which, as they claim, consequently, would cause point-of-impact shift. Moreover, they've reported that when turning the objective bell, they've witnessed the reticle moving.
Even with a moving eyepiece, when you adjust your scope to correct for parallax error, the entire sight picture moves in relation to the movement of the eyepiece. If you're not viewing the sight picture with the rifle kept still--by clamping it on a vice or putting it on a completely steady rest--you'd think that you'll end up with missed shots. But if you clamp your gun to a steady rest or vice, provided you've eliminated parallax error, you'll discover that when you move the eyepiece it would seem like the sight picture is a still frame being repositioned with the reticle absolutely planted on the point of aim. To sum it all up, your scope is not defective.
Cheers and shoot straight!
Even with a moving eyepiece, when you adjust your scope to correct for parallax error, the entire sight picture moves in relation to the movement of the eyepiece. If you're not viewing the sight picture with the rifle kept still--by clamping it on a vice or putting it on a completely steady rest--you'd think that you'll end up with missed shots. But if you clamp your gun to a steady rest or vice, provided you've eliminated parallax error, you'll discover that when you move the eyepiece it would seem like the sight picture is a still frame being repositioned with the reticle absolutely planted on the point of aim. To sum it all up, your scope is not defective.
Cheers and shoot straight!