Complete Guide to Handloading, 3rd ed, 2nd rev page 398 edited by Philip B. Sharpe, 1937, .401 WINCHESTER SELF-LOADING This is another of the autoloading series adapted only to Winchester rifles and is a member of the same family as the .351. It is by far the best of the Winchester autoloading numbers, however, and is an excellent cartridge for deer and other thin skinned medium-sized game. In handloading, one must, as in other autoloading calibers, bear in mind that there can be but very little variation from the factory standard if the action is to function properly and safely.

.401 Winchester Self Loading Bullet Powder Ballistics Grs Type Seat Kind Grs MV 20” Pressure Source 200 SP .217 2400 13.0 990 Herc. “ “ “ “ 19.0 1595 24,500 “ “ “ “ “ 24.7 2060 50,000 “ “ “ “ Unique 10.0 1290 17,800 “ “ “ “ “ 15.2 1785 40,000 “ “ “ “ S.Shoot 14.0 1150 “ “ “ “ “ 19.0 1640 26,000 “ “ “ “ “ 24.5 2020 50,000 “ “ “ .200 1204 26.0 1645 DuPont “ “ “ “ 30.0 1925 “ “ “ “ SR 80 12.0 1085 “ “ “ “ “ 17.0 1525 “ “ “ “ 4227 31.0 2100 “ 250 “ .323 2400 11.0 720 Herc. “ “ “ “ 18.0 1430 24,200 “ “ “ “ “ 23.3 1765 50,000 “ “ “ “ Unique 9.0 1090 20,500 “ “ “ “ “ 13.7 1525 40,000 “ “ “ “ S.Shoot 11.0 860 “ “ “ “ “ 16.0 1350 23,000 “ “ “ “ “ 22.2 1780 50,000 “ “ “ “ Lightn. 15.0 840 “ “ “ “ “ 21.0 1350 25,000 “ “ “ “ “ 30.0 1800 50,000 “ “ “ .300 1204 23.0 1415 Du Pont “ “ “ “ 27.5 1740 “ “ “ “ 4227 19.0 1445 “ “ “ “ “ 27.5 1850 “ “ Lead .292 2400 12.0 1050 Herc. “ “ “ “ 15.0 1285 15,000 “ “ “ “ “ 18.0 1480 20,100 “ “ “ “ Unique 10.0 1330 23,300 “ “ “ “ S.Shoot 10.0 1000 “ “ “ “ “ 18.0 1575 27,300 “