110 
MINUTES OF PROCEEDINGS OF 
to adopt Major PallisePs proposal of changing the metal of the studs to 
gun-metal, and of reversing the position of the studs by placing the smaller 
ones in front. Pig. 5. 
The shunt guns had six grooves of the well-known form; the spiral was 
uniform with one turn in 226" or 38 calibres. The shot had 30 studs, i.e* 
five for each groove. Pig. 6 shews section at muzzle. 
Fig. 6. 
All the projectiles had hemispherical heads. The weight of each shell 
(filled) was 100 lbs. and of each shot 110 lbs., except that of the Prench 
shot which weighed only 100 lbs. 
A very short experience showed that the systems of Messrs Jeffrey and 
Britten were unsuited for heavy charges; large pieces of lead were blown 
off the shot, and the shooting was so wild as to throw these systems 
entirely out of the competition, which therefore was limited to those of 
Scott, Lancaster, the Prench, and the shunt. 
Experiments were carried on which tested these competitive guns in 
all the cardinal virtues of ordnance, and though the shooting qualities 
were alike, the. O. S. Committee in their final report, No. 3730, dated 
1st May 1865, recorded their unanimous opinion in favour of the so-called 
Prench system 
(1) “ Because of the simplicity of its studding on the projectiles. 
(2) (e The simplicity of the grooving of the gun, and 
(3) “ Prom a disposition to admit the advantages of an increasing over a 
uniform spiral;” 
