Ok, went out and shot 6 rds with the .300WM at 50yds ... with the Klassic scope.
I was shooting at NRA 100yd target. First round was in the "8" number but correct on elevation. Clicked for right, second round was on the line between 8 and 7 but correct on elevation but I was out of clicks. Removed the cap and reset it to "zero" .. then clicked over 10 clicks (max) and was on the "x" ring to the left of the "x" ... then removed the cap and reset to zero and clicked 4 clicks and hit the center of the "X". Then removed and reset cap to zero. So that's apparently how it works.
The cap gives you 20 clicks plus on minus from the "zero". If you need more you remove the cap and reset it to zero and dial some more and repeat until you are where you want to be. Then remove cap and reset to zero and that is your "zero".
Per the manual a "click" is 1 cm at 100m.
So 19 cm at 100m so that's about 1/10th of a mil per click ... so 19 10ths of a mil up and 19 10ths of a mil down.
So, if you were gonna use this for "long distance", you would have to be resetting the turret and keeping track of those resets. Hum.
Or you could reset to maximum "down" and have 39 clicks up ... or 3.9 mils up. But you'd have to use the target/critter as the reticle if you were gonna hold down as this is a duplex reticle.
If I'm getting this right, then this scope is probably not intended to be a long distance scope !
If I "zeroed" at 300yds ... with 39 clicks up ... I could dial to 655yds which is essentially 600m .. and my maximum down hold (with my 20 inch barrel .308 with 175gr FGMM) which be 7 inches at 165m ...
So I'd consider that viable ... but that about the size of it.
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Now if you thought of this as a "huntin" scope .. and double zeroed at somewhere around 50/200 yds .. then you'd have all the clicks you needed to be dead on within 50 to 300yds ... with the elevation zero set to zero. Maybe that's how these scopes were intended to be used. I know nothing about S&B scopes, so I have to guess.
I still have not heard from S&B support. Maybe they don't do "email" ??
I'll try to call them Thursday.