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.338 Winchester Magnum

Test barrel: 620 mm (24½”), 1 in 10” twist
Primers: Large Rifle Magnum
Cases: Lapua, trim-to length 63,30 mm (2.492”)

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]
13,0 200 SP Hornady 85,01 3.346 N150 3,85 59.4 801 2628 4,34 67.0 873 2864
            N540 3,90 60.2 814 2671 4,34 67.0 888 2913
            N550 4,15 64.0 822 2697 4,61 71.1 899 2949
            N160 4,71 72.7 720 2362 5,23F 80.7F 905 2969
14,6 225 SP Hornady 84,0 3.307 N160 4,56 70.4 798 2617 4,80 74.1 856 2809
            N560 4,78 73.8 820 2689 5,15 79.4 849 2785
15,0 231 Naturalis LR Lapua 84,3 3.319 N550 3,80 58.6 752 2467 4,31 66.5 838 2749
            N160 4,25 65.6 751 2464 4,74 73.1 843 2766
            N560 4,50 69.4 769 2523 4,85F 74.8F 832 2730
16,2 250 Scenar Lapua 84,0 3.307 N550 4,06 62.7 765 2509 4,27 65.8 810 2657
            N160 4,23 65.3 760 2494 4,55 70.1 813 2669
            N560 4,72 72.9 787 2581 5,03 77.5 843 2765
16,2 250 Grand Slam Speer 83,8 3.299 N160 4,49 69.3 753 2470 4,83 74.5 809 2655
            N165 4,81 74.3 766 2511 5,19 80.0 823 2698
16,2 250 SBT Sierra 84,8 3.339 N160 4,25 65.6 758 2488 4,58 70.7 810 2659
            N560 4,39 67.7 774 2540 4,78 73.7 831 2728
            N165 4,63 71.4 779 2555 5,02 77.4 835 2738
17,8 275 SP Speer 85,0 1) 3.346 N165 4,63 71.5 731 2398 5,01 77.3 785 2576
17,8 275 A-Frame Swift 86,5 1) 3.406 N160 3,55 54.8 634 2080 4,15 64.0 717 2352
            N560 3,76 58.0 651 2136 4,30 66.3 731 2398
            N165 3,79 58.5 651 2136 4,35 67.1 725 2379
19,4 300 HPBT Sierra 84,8 3.339 N160 4,06 62.7 692 2270 4,43 68.3 745 2445
            N560 4,20 64.7 700 2295 4,66 71.9 756 2479
19,4 300 RNSP Woodleigh 83,5 3.287 N160 3,58 55.2 626 2054 4,10 63.3 692 2270
            N560 3,92 60.5 658 2159 4,55 70.2 731 2398
            N165 3,92 60.5 637 2090 4,46 68.8 711 2333

F = Case full
1) The cartridge overall length exceeds the CIP maximum.

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

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