.401 WINCHESTER vs. .30 U.S.
.401 WINCHESTER vs. .30 U.S.—Is the .401 Winchester Self Loading rifle more powerful than the .30 U.S. Army?
At short range, or at the muzzle, rather, it has more power, but the bullet loses its energy more rapidly than the .30 Army. The muzzle energy of the 200 grain .401 caliber bullet is 2,037.0 foot pounds, and its energy at 100 yards is only 1,315.9 foot pounds. The muzzle energy of the 250 grain bullet of this caliber is 1,950 foot pounds, and its energy at 100 yards is 1,333.2 foot pounds. The muzzle energy of the .30 Army is 1,949 foot pounds and its energy at 100 yards is 1,555.5 foot pounds. But energy alone is not a true measure of killing power—we must also consider the type of bullet, its caliber, and its penetration. The .401 gives about the same penetration as the .30 Army at short range, and this, considering its larger caliber, should make it a little more destructive at short ranges, or at least equal to the .30 up to about 100 yards. But it is not as accurate as the .30 Army, and not as good in any way at ranges exceeding 100 yards.
Harding, A.R.. 3001 Questions and Answers. Columbus, Oh: A.R. Harding, 1913.
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