7 x means-the object appears 7 times bigger than with naked eye at same distance
yes scopes have a point were its too close to focus, spend $$ and this point gets closer and clearer, however its a bit of a how long is a piece of string question m8, it will depend on which scope
Look up focal distance and parallax this will all determine ranges its usable
7 x is a fairly good allrounder (certainly not for very close bush work or toothy critters) if u had to pick a fixed magnification "normally" fixed magnification is fixed parallax at 100yds typically with a focal range of about 20/30m to infinity there are exceptions - i have an air rifle scope that will focus at 5m
3-9x used to be the most bought scope when variable came out - got no idea what it is now
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