gentlemen,, i have a valdada /IOR 10-60x-56 scope with a 40mm tube. these is a $4000 scope. it is VERY NICE AT 600 AND 1000 Yards. it has two draw backs.
one is a very coarse focus...they provide a 4" addon focus wheel to add some"fine" focus.
two is it has no physical/hard zero stop. IMHO this...