TRAJECTORY OF It P§ ARMSTRONG GUN i® Elf FIBER WITH- SERVICE CHARGES. 
AT AN APPARENT ELEVATION OF 0° 30 
From experiments madeSep.19^1860. 
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Scale, > /‘A&sccrstps SB feet to arada-cfc 
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Mean of 4 rounds. 
Initial/ Velocity 7188-9 feet/ per sepoAd/. 
Angle/of departure/ 0°48 36" 
Crun/ laid od/ con/ elevodioTV of 0 30 0 
Itange 7364 feet/. 
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