174 
SHORT NOTES ON THE 13-PR. M.L. GUN. 
Accuracy 
of fuzes. 
In the shelter-trench practice, at 1500 yds., 17 rounds struck the 
parapet out of a total of 25. 
The competitive practice at 880 yds. with plugged shell gave 
the following results :— 
Bull’s-eyes . 7 
Hits, direct . 23 
/, ricochet .. 2 
Misses .. 8 
Of the misses, one was due to the projectile having jammed in the 
bore, and consequent loss of range. The remainder, with two excep¬ 
tions, were due to very small errors right or left; their elevation was 
correct. 
During this practice Scott’s sight was used, and no doubt con¬ 
tributed to the results obtained. 
Out of 240 time fuzes, only 10 were blind, and of these only 4 could 
with certainty be said to be blind from any imperfection in the fuze. 
The other cases happened when firing at long ranges with a very small 
margin of length. 
Out of 285 percussion fuzes only 4 gave no sign, but all were deeply 
buried, and there was not sufficient time to recover them to ascertain 
whether they were really blind or not. 
The regularity of action of the time fuzes was most marked. When 
firing at targets having extended fronts, the following were the 
distances short at which it was supposed the best effects could be 
obtained* and which were therefore tried for :— 
Under 1000 yds. range. 120 yds. short. 
h 
2000 
. 100 
a 
a 
3000 
a . 
. 80 
n 
Over 
3000 
n . 
. 60 
n 
The following are a few of the results at 1200 yds., 28 rounds at a 
gun pit:— 
40 yds. short... 5 
40 to 60 « .... 6 
60 to 80 „ . 9 
80 to 100 „ ... 5 
Struck pit ... 2 
Blind .. 1 
The object having in this case small front and no depth, the distance 
of burst desired was about 70 yds. Range 1800 yds., at infantry 
formation. 80 rounds. 
Under 30 yds.. 6 
80 to 60 „ . 4 
60 to 80 „ ... 7 
80 to 110 „ .. 8 
110 to ] 50 « .. 4 
Bevond ..... 1 
Blind. 0 
Distance desired, 110 yds. 
