Well, I think the answer to that is somewhat multifactorial.
I also want to caveat my statement my clarifying that it only “bugs” me to a very little degree.
Based on my prior readings, I have a perception that a higher zoom ratio is less reliable. Based to my prior experience, I think it is certainly harder to get a good eye box with a higher zoom ratio. I think that the erector systems take more space, leaving less travel.
But I’m not an optics engineer, so I can stand to be corrected.
I use my scope as a sighting device, not an observation device. Higher mag enables increased precision to a small degree. Higher mag undoubtedly diminishes FOV. I appreciate those who would shoot >1k, but I fear that even with astronomical BCs, drift is too real to guarantee painless success at much over 750 in field conditions. And if I’m honest and not succumbing to internet braggadocio, I personally limit myself to 600.
I don’t need >12x for 600 m.
Bottom line: less “is” (I assume) lighter, more reliable and leaves space for other design constraints. I’d far prefer a light scope to a higher-mag one.
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