and the nature of the ground. It is effective against troops lodged in tall timber. Masks, branches of trees, etc., frequently cause the premature burst of the projectiles.[1]
Percussion shrapnel is effective only when bursting immediately in front of the target (5-25 m. in front of it, depending upon the range). However, even in this case, the bullets often pass over low targets, such as skirmishers lying down, and low parapets afford sufficient protection. An adequate effect can be obtained only when the fire is directed on vertical targets. Soft ground, newly ploughed fields, terrain covered with snow or underbrush, small folds of the ground, or a rising slope, diminish the fire effect. When the angle of fall is 10 degrees or more (with the German piece at ranges of 3300 m. and over) half of the bullets penetrate the ground, the remainder ricochet and pass on at a greatly reduced velocity. The explosive or incendiary effect of shrapnel is insignificant owing to the smallness of the bursting charge. However, some incendiary effect is possible if the projectile strikes an easily inflammable target.[2]
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Percussion Shrapnel.
Time shrapnel (used in Germany up to 5000 m.) is fairly independent of the terrain, the burst being
