"Case. Made of brass. The government ammunition is manufactured at
Frankford Arsenal, Pennsylvania.
"Powder. Pyrocellulose. The grains are cylindrical, single,
perforated, and graphited. Normal charge is 47-50 grains. Pressure
developed in the chamber is 51,000 pounds per square inch.
"Penetration. This bullet will penetrate the following materials to
depth stated at range of 100 yards: Moist sand, 14.02 inches; loam,
17.46 inches; oak, 31.18 inches; brick wall, 5.5 inches; steel plate, .4
inch. Dry sand is the best stop. The bullet will penetrate 6.88 inches
of it at 100 yards and 13.12 inches at 500 yards.
"Range. Maximum range, 4891.6 yards, about 2-3/4 miles) with the
muzzle elevated 45 degrees. The time of flight 38.058 seconds.
"Velocity. About 2700 feet per second at 70 degrees F.
"Weight. A complete cartridge weighs 395.5 grains depending on amount
of water. It is waterproof."
ESTIMATING DISTANCE
Suppose you are out hunting, and that you see a big buck on a distant
hill. Suppose that it is exactly 600 yards distant from you, that you
are an expert shot, and that you set your sights at 400 yards and fire.
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