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.270 WSM

Test barrel: 520 mm (20½”), 1 in 9” twist
Primers: Large Rifle Magnum
Cases: Winchester, trim-to length 53,10 mm (2.091”)

Bullet Powder Starting load Maximum load
Weight Type Mfg C.O.L Type Weight Velocity Weight Velocity
[g] [grs]     [mm] [in.]   [g] [grs] [m/s] [fps] [g] [grs] [m/s] [fps]
5,8 90 HP Sierra 68,6 2.701 N160 4,00 61.7 1021 3350 4,47 69.0 1130 3707
            N560 4,39 67.7 1020 3346 4,78 73.8 1135 3724
            N165 4,59 70.8 1041 3415 4,75F 73.3F 1083 3553
9,1 140 XFB Barnes 71,0 2.795 N160 3,20 49.4 800 2625 3,71 57.2 899 2949
            N560 3,49 53.9 806 2644 3,93 60.6 918 3012
            N165 3,75 57.9 832 2730 4,10 63.3 913 2995
10,4 160 Partition Nosler 71,0 2.795 N160 3,20 49.4 737 2418 3,47 53.5 825 2707
            N165 3,30 50.9 769 2523 3,90 60.2 863 2831
            N560 3,36 51.8 774 2539 3,82 58.9 873 2864

F = Case full

LIGHT GREY TEXT BOX INDICATES MAXIMUM LOAD - USE WITH CAUTION!
LOADS LESS THAN MINIMUM CHARGES SHOWN ARE NOT RECOMMENDED

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