484, SHRAPNEL FIBRE OF FIELD ARTILLERY. 
maple rnow. Lhe following table gives the calculated distances of burst which are 
ing tho best for the various targets (neglecting error of fuzes) such as 
i ° : 
distances of SKirmishers, etc. 
“point of 
‘point of Calculated from General Rohne’s Table V.., Page 27. 
British shell 
at various TA BLE Ib, 
eee being 1 
pes seu 5-Pr. Marx II. & 12-Pr. Marx II. 
perfect, 
THE DISTANCE OF BURST TO GIVE THE GREATEST 
EFFECT ON— 
RANGE. 
INFANTRY INFANTRY INFANTRY H 
LYING DOWN. KNEELING. STANDING. eee aN 
Yards. Yards. Yards. Yards. Yards. 
1,093 36 57 73 121 
2,187 30 4.8 62 O4 
3,280 27 4) 54 81 
A374 24 36 4.8 73 
Note.—In all General Rohne’s examples, the targets are taken ag 
single lines. It is evident that for a target hke a “column of fours,” 
or a battery in “column of route,” the increased depth and density of 
effect of the 15-pr. and 12-pr. shell would be a distinct advantage ; 
very often, no doubt, the supports and reserves of the skirmishing line 
would be closed up to within 800 yards, thus the same shell would, if 
burst close to the first line, frequently sweep the second line as well. 
Probably the greatest advantage of the small cone of dispersion is 
the increased distance over which the time shrapnel will be effective, 
and the smaller number of shell which will be wasted by bursting be- 
yond the target. 
(5.) HxampLe—Pace 27 or Hssay. Tasin V. 
Example 
showing the We see from this table that the theoretically perfect shrapnel for 
eect 0 
variations in time effect should be burst 23 yards short of the target for a range of 
ermine ot 1,098 yards, supposing the latter to be infantry lying down. The 15-pr. 
fwes, and and 12-pr. should be burst 386 yards short, vide Table I. 
thonecessity | Now the remaining velocity at this range is roughly 1108 f.s. for the 
frog ng 12-pr., and 1045 f.s. for the German shell; and the difference be- 
tween the longest and shortest burning of any five new fuzes (T. and 
P. short Mark IV.) is about :25 seconds, equivalent to 92 yards range 
for the 12-pr. and 87 for the German shell, so that, supposing the mean 
fuze to burst, as intended, 28 yards short of the target, the short fuze 
would burst the shell 66 yards short, and the long one 20 yards over ; 
therefore, to ensure all the shell being effective, the distance of burst 
would have to be at least 46 yards short. The German fuze would, 
therefore, always have to be set to burst the shell 23 yards short of the 
