Q. Describe the 6-pdr. R.F. sight.
A. A simple bar-sight graduated to yards with a deflection-scale reading to three minutes.
Q. How is the deflection-scale set on open sights when it is desired to fire to right or left?
A. To fire right, move the peep-hole to the right; to fire left, move the peep-hole to the left.
Q. From what line is all elevation measured?
A. From the axis of the bore. (See Fig. 63.)
Fig. 63.