30 O. N. Rood on Elongated Projectiles. 
No less demonstrable is it, that the American rifle-pistol, with 
a barrel only 12 inches in length, but constructed on the same 
principle as the larger arm, surpasses in the accuracy of its fire, 
up to a range of 500 yards, most of the rifles now used in Eu- 
rope.* This may seem incredible; it is highly significant as 
pointing out, that the principles on which rifled-guns should be 
constructed, have been better apprehended by our countrymen, 
than thus far at least, by the ordnance boards of European gov- 
ernments. 
Absolute Deviation. 
| 200 yd. 500 yd. 
Enfield, 13°3 28°0 in. 
Rifle a tige, 11:0 25°2 “ 
wi f) 6°8 
American Government, 658 | .17°3 “ 
Absolute Deviation of 12 in. Pistol according to Chapman. Weight of 
all 100 to 115 grains. 
j 110 ya. | 220 yd. |__ 380 ydy | 440 yd. |. 550 yd. 
in. in. in. in. in, 
1'5 to 2 2to 4 6 to 8 10 to 12 14 to 16 
Diameters of Circles containing the best half of the shots. 
} 164 yd 328 yd. 492 yd. 
| Swiss Federal, 54in. | 11°40 in. 23 
| Swiss Chasseur, 84 * 22°40 “ 40 
_ French Rifle a tige, 9G: 2e4 <= 40 
| Austrian Rifle, 260 * 40 - 90? 
| Sardinian Rifle, 22°38 4 38 83 
Diameters of Circles containing a certain proportion of the shots Srom 
the American 12-inch Pistol. of 
l 440 yd. 500 yd. 
———=—— 
oz 5 
5°04 in. nehes. 30 in. 18 in. 
$ out of 10 shots.{} 8 out of 10.§ All the shots.§ | 4 out of 10.] 
surmise that the pts of the balls was irregular, and therefore allowed no determina: _ 
Oo ‘ 
¢ Vs rs 
the meaning of this table, until in experimenting with a ball whose flight was known 
be irregular, similar results were obtained. Gen. Jacob himself remarks that the 
table is a little curious, 
According to Lieut, Wilcox, Chapman, plate VI. 
; ‘ , plate 
t Trials by Mr. Lewis. j experiment of my own. 
