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Experienced Riflescope Purchasers

HandLoad
I am Well acquainted with the Optics features, but need your input about what drives your choice between 30mm and 1-Inch Scope Tube Diameters? Is it simply what looks good? Country of Origin of your Rifle?
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3 comments

Date Votes
  • perry shooter
    One thing to consider is the scopes use. If you are not useing in LOW light conditions then the need for a large eye piece is a MOOT point. Most 30MM scopes need a large eyepiece and OB lens. This mandates the scope sets Higher off of the receiver to clear both the bolt handle and the barrel . Thus the stock that may be perfect for a 1 inch scope may with a 30MM scope have a sight line too high to fit your cheek on the butt-stock. Sometimes BIG is not better. Just my $.02
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  • nononsense
    HandLoad,

    The two most discussed advantages for the 30mm main tube are:

    1) Light transmission (but only if the inner tube is larger proportionally)

    2) Additional room for increased adjustments (advantage for longer ranges)

    The Nightforce and U.S. Optics scopes I use currently all have 30mmm main tubes. I'm not concerned about light transmission but I do need the increased range of windage and elevation for long range target shooting.

    Best.
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  • He Dog
    Nonnonsense has nailed it, and some 30mm scopes do not have larger glass inside and are thus 1" scopes in a 30mm tube. 30 mm became the standard in Europe just as 1" became the standard here. They do a fair amount of night hunting in some countries there and larger glass transmits more light. If you are not copeting in long range shooting, or trying to hit deer 500 yards out under a powerline, you will be fine with quality 1" glass.
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