The Ross Mark IIIB used a front sight similar to the P-14 Enfield Rifle. The rear sight has been replaced with a target sight designed for the 1905 Ross Mark II as noted above. Manufactured by the Canada
Tool and Specialty Company, it is a Pilblad Patent Mark V sight and should be calibrated for Mark VII ammunition IF used with the short 1905 Ross Mark II Rifle, but might vary slightly because of the difference in sighting radius.
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