2 Piece Ringmounts vs 1 Piece Scope Mounts

The most popular way of mounting a scope to your rifle is to use 2 Piece Ringmounts. The 2 Piece design is very flexible as it allows the extraction port on bolt action rifles not to be fouled and it also allows precharged (pcp) pneumatic airguns with magazines to function properly without the risk of loading and cartridge case extraction issues.

However the downside to the 2 piece ringmount is that the rifle scopes body tube is to a degree used as a brace.  Most modern rifles scopes are made from much thinner material than people realise so any amount of force applied is not ideal.  The advantage of a 1 piece or single piece scope mount is that the scope rings at each end of the mount are an integral solid piece of material so the rifle scope cannot be put under any undue stress.  The amounts we are talking about are unlikely to damage the scope tube or the lenses inside but could possibly mean a slight loss of accuracy at long range.  A big part of shooting accurately comes down to confidence in your equipment so that’s why it is best to use a single piece scope mount instead of ringmounts wherever possible when mounting a rifle scope.

If you look at most army, police and special forces sniper rifles such as the models from Accuracy International you will often see picatinny one piece scope mounts being fitted.  These rifles may be knocked around and have a hard working life so this goes to prove that these top end rifles and scopes rely on the additional ruggedness and security of a 1 piece mount.

Another advantage of using a one piece scope mount is that an angle can be easily machined into the rings to allow for the bullet drop at long ranges.  30 or 40 MOA is quite common when large calibers with heavy bullets are being used at distances in excess of 1000 yards and often considerably further.