Gehmann - Knobloch Centering Device 23mm (344-K) Front Iris · 7mm-08 Remington Ackley Improved

·  7mm-08 Remington Ackley Improved 40 Degree Shoulder

Our wipes are soft

・30mm diameter body

Great for the user that is concerned about brass galling from heat buildup due to friction

and expands the case neck

Gehmann - Knobloch Centering Device 23mm (344-K) Front Iris · 7mm-08 Remington Ackley ImprovedPush on to your lens holder to assist alignment. The centring device is put in front of the lens or the open iris shutter for precice adjustment of the lenses. The lens then has the optimal adjustment i. e. precisely centred as soon as the sight picture shows a perfectly round target bull. After centring the device is taken off again.