I broke down & bought one. On reading the instructions it says it'll only record to 200 yds.
Really!
What a ripoff. I didn't expect 600, some exaggeration being normal for marketing hype but 1/3 of advertised. I can eyeball that & my old coincident image Ranging 1,000 is good to 600 or so.
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Allan Quatermain: “Automatic rifles. Who in God's name has automatic rifles”?
Elderly Hunter: “That's dashed unsporting. Probably Belgium.”