248 2 CAUSES OF DRIFT. 
Round 11, elevation 51°—Correct all the way but point seemed to 
waver from side to side. Shell travelled 14 ft. under mud; found 
35 ft. below surface, nearly horizontal, base to front and slightly 
inclined to left and downwards. No indication of having turned over 
after striking. 
Round 12, elevation 51°—Fell with point slightly to right till near 
ground, then got vertical. Shell had travelled 11 ft. under the mud. 
Found 6 ft. below surface, base lowest and to the left. No indication 
of having turned over after striking. 
6-in. B.L. Howitzer (25 cwt.)—Projectile : 1194 lbs. weight, 27 in. 
length. 
38 oz. charge (cordite). 
Flight. Range. Deviation. 
Elevation. Secs. yds. Left. Right, 
43° N.O. 5,206 x 168-4 
i 32-0 5,158 ~ 168°4 
70° N.O. 3,308 000 734 
wee 46°79 3,349 10°8 odo 
600 46°43 3,309 000 56°6 
12 oz. charge (cordite). 
43° 18°51 1,780 x, 67°6 
5 18-71 1,819 ia 624 
70° N.O. 1,101 195°6 * 
65° 26°16 1,448 114 
a 25:80 1,427 3-4 
9-in. R.M.L., Mark VI.—Charge : 183 lbs. Pointed-head projectile : 
Cast steel C.S., weight 3592 lbs., length 32°85 ins. M.V., 611 fis. 
Time of Flight. Range. Deviation. 
Elevation. Secs. yds. Right, yds. Wind. 
70° N.O. 2,103 2316 
0 N.O. 2,135 224°6 Force about 2. 
36°51 2,132 220°8 
36-23 2,115 214:6 % 
36°9 2,170 220°8 | ie 
60° 32°65 3,037 172°6 
Ay N.0. 3,057 170°6 
32°9 3,090 172°2 
32°91 3,079 1750 
32°67 3,045 170°8 
30° 18:96 3,129 51:2 
500 19:16 3,149 52°6 
18°96 3117 49-0 
19:24 3,198 48-8 
19°16 3,170 504 
45° 26°59 3,061 1084 
Mf 26°62 3,549 109°8 
26°25 3,439 102°8 
26-71 3,572 104°4 
26°66 3,564 1054 
