Fig. 9 shows cut views of the craters in the target plates
tempered at 48 h and impacted by 7.62 AP as well 12.7 AP projectiles.
As can be seen the crater formed by 7.62 AP projectilesis considerably smaller to that of the crater formed by 12.7 AP
projectiles. The average crater diameter formed by 7.62 AP projectilesisfound
to be approximately 12 mm where asthe average
crater diameter formed by 12.7 AP projectiles is measured to be
approximately 25 mm. The crater volume is measured by filling
the crater up to the original target plate level with plasticine of
known density (Dikshit, 1998). It is found that the average volume
of the crater formed by 7.62 AP projectiles is measured to
be 412 mm3 where as the average volume of the crater formed
by 12.7 AP projectile is found to be 2620 mm3.