166 
SHORT NOTES ON THE 13-PR. M.L. GUN. 
Limber. The boxes are held by a nib-iron in front and a clip in rear; the 
guard-irons folding down on to the top. They open to the rear by the 
side folding down. 
Projectiles. 
shS pnel ^e k°dy of the shell is of cast-iron unturned, without studs. At 
the base is a projection haying an undercut groove and radical grooves. 
The gas-check is attached by the first to the projectile, andjby the 
second imparts rotation to the shell. 
It contains 116 bullets of 34 to the lb. 
Dimensions. 
Diameter. 
Length (over all) . 
Weight (filled and fuzed) 
Bursting charge .. 
2-97 in. 
10-17 in. 
13 lbs. 4 ozs. 
ioz. 
Common Outwardly the common shell resembles the shrapnel in every 
shelL respect, except that its length over all is 10*64 ins. It is the same 
weight filled and fuzed. 
Case. Contains 285 bullets of 34 to the lb., and weighs 13 lbs. 9 ozs. 
cartridge. Cartridge : service silk cloth, 3 lbs. 2 ozs. R.L.G-. 3 
Fuzes. 
Percussion. E.L., Mark II. 
Time fuze. Wood, time . 15 secs. B.L. 
The latter has a central composition and six powder channels. It is 
marked in whole numbers and halves up to 30. As these neither 
represent tenths of an inch, nor seconds of time, it is better to call 
them simply divisions. The fuze, when in good condition, burns 13 secs, 
with this gun when fired at the sea-level. 
A B.L. fuze is rendered necessary by the almost entire absence of 
windage, due to the use of the gas-check. 
Practice Table, 
A practice table, containing almost every item required, is given in 
the Handbook for this gun, in place of the bare range-tables to which 
the service has been restricted hitherto. The advantage of this need 
hardly be pointed out. 
The following specimen for a few ranges may be interesting. 
