I dont have mine handy right at the moment but I would say yup.
I have a 300 Win Mag with a single turn 4-16x50 PMII.
I dont remember all the numbers now but with a zero mount I figurd I could get to 1300 yards max with it.
That being said I never tried it so it could have been some what less.
My 300 RSAUM has the 20 MOA mount.
No real reason not to use it.

dave

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Only accurate rifles are interesting.