Q I've had problems mounting my scope
A It is not always possible to position a scope ideally on a rifle when mounting it but it pays dividends to get as near to the ideal as circumstances allow. When the rifle is shouldered and ready for triggering the shooter’s aiming eye should be aligned precisely with the scope’s axis and seeing a full sight picture without having to crane forward or ease backward. This ideal alignment of eye and scope reduces the chances of parallax errors, which occur only when the eye is off axis, and greatly facilitates target acquisition and handling comfort generally.
Lynx and other scope mount suppliers offer rings of differing heights. Select the ring height that a) lifts the scope free of obstructing the rifle bolt-handle, b) allows at least 2mm clearance between the front lens bell and the gun barrel, and c) comes closest to setting the scope’s axis in line with your aiming eye. Bear these factors in mind when buying new scopes. For instance, the eyebells of Lynx Professionals are less likely to interfere with bolt handles and the Professionals’ non-critical eye-relief gives greater freedom for positioning the scope. June 1999.
A A hunter may choose to shoot from a prone position, a kneeling position, a standing position etc. on a given hunt but it is important that his riflescope be mounted the right distance from the eye for shooting from a standing position. This places the eyepiece furthest from his eye, reducing the chances of being hit by the scope when shooting from other positions. If the scope is mounted for bench rest use, as often happens for convenience when zeroing a scope, it will be too far forward for shooting in a standing position and field of view will be sacrificed.
What's better - a two-piece or a one-piece scope mount? For most rifles two-piece steel mounts are just as "strong" as one-piece - and they are lighter and give better access to the rifle's loading port. But there are exceptions: On magnum calibre rifles a one-piece mount absorbs some of the energy that is generated by the flexing of the rifle's action under recoil, reducing strain on the riflescope. Also, on big calibre rifles where the rear mount screw holes are closer than 12mm, a one-piece mount is a better choice. Military actions which have been manufactured over several decades and by several different factories vary in tolerance and a one-piece base is sometimes preferable to two-piece by levelling out minor variations in receiver ring and bridge heights. August 1997.