Corn-Picker
Member
I have a Bushnell Elite 6500 2.5-16x that was a demo unit. I'm trying to determine if the behavior it exhibits is normal for a rifle scope. I'm a little ignorant of what to expect with such a scope, so I thought I'd ask the experts here for some help.
The scope does not have an adjustable objective, the parallax is handled by the side focus. Here is what I've noticed using the scope:
1. At max magnification (16x), the scope will not focus a 100 yard target or anything closer. It seems that ~150 yards is the minimum distance that's focused at 16x.
2. At max magnification, the parallax seems to be at about 80 yards (tough to tell exactly because it's a blurry image) when the parallax adjustment is set to max (infinity). Stated another way, the reticle never appears in the same plane as the 100-300 yard targets at high magnifications, there's no crossover point. The reticle plane will crossover with the target plane at lower magnifications (e.g. I can eliminate parallax at 100-300 yards at 10x zoom). This brings me to my next point.
3. The parallax error changes as magnification changes. This may be an immutable law of optics, I'm not sure.
4. I'm wondering if these problems could be due to the extremely high "erector ratio" of the scope, the ratio of the max power to the lowest power? None of my other scopes seem to have these issues, but they have a lot lower erector ratio.
The scope does not have an adjustable objective, the parallax is handled by the side focus. Here is what I've noticed using the scope:
1. At max magnification (16x), the scope will not focus a 100 yard target or anything closer. It seems that ~150 yards is the minimum distance that's focused at 16x.
2. At max magnification, the parallax seems to be at about 80 yards (tough to tell exactly because it's a blurry image) when the parallax adjustment is set to max (infinity). Stated another way, the reticle never appears in the same plane as the 100-300 yard targets at high magnifications, there's no crossover point. The reticle plane will crossover with the target plane at lower magnifications (e.g. I can eliminate parallax at 100-300 yards at 10x zoom). This brings me to my next point.
3. The parallax error changes as magnification changes. This may be an immutable law of optics, I'm not sure.
4. I'm wondering if these problems could be due to the extremely high "erector ratio" of the scope, the ratio of the max power to the lowest power? None of my other scopes seem to have these issues, but they have a lot lower erector ratio.