Fig. 2
The bolt ([Fig. 2]) consists of the handle, A; sleeve, B; safety lock, C; Cocking piece, D; safety lug, E; extractor, F; extractor collar, G; locking lugs, H; extractor tongue groove, I; and gas escape hole, J.
Fig. 3
[1343]. Rear-sight leaf; drift slide; wind gauge. The illustration on the opposite page shows the rear sight leaf (raised), the drift slide (E), and the wind gauge (F, L.). It is most important that the soldier be thoroughly familiar with the use of these parts, for otherwise it is impossible for him to sight correctly and use his rifle properly.
The leaf is graduated from 100 to 2850 yards. The lines that extend the whole way across the two branches of the leaf, mark 100 yard divisions; those that extend about half way across, mark 50 yard divisions, and the shorter lines mark 25 yard divisions.