.300 Winchester Magnum

Test barrel: 620 mm (24½”), 1 in 10” twist
Primers: Large Rifle Magnum
Cases: Lapua, trim-to length 66,30 mm (2.610”)

CAUTION: Loads less than the listed starting loads may cause excessive chamber pressure and must not be used!

 
Bullet8,0 g / 123 grFMJ, LapuaC.O.L. 81,9 mm / 3.224 inch
PowderStarting loadMaximum load
TypeWeightVelocityWeightVelocity
[g][grs][m/s][fps][g][grs][m/s][fps]
N5404,1063.398032154,5169.610603478
N1503,8459.394430974,3767.410293376
N5504,3066.497531994,6772.110633488
N5554,6071.097231895,10C78.7C10713514
N1604,5069.495531335,0778.210553461
C – Compressed load
 
Bullet9,7 g / 150 grLapua, MegaC.O.L. 79,5 mm / 3.130 inch
PowderStarting loadMaximum load
TypeWeightVelocityWeightVelocity
[g][grs][m/s][fps][g][grs][m/s][fps]
N5503,9060.287728774,2966.29593146
N5553,9160.385928184,6071.09643163
N1603,5054.082927204,2665.79293048
N1654,3066.487028545,1279.09733192
N5604,3567.187028544,8474.79683176
N5654,5570.288328975,1579.59763202
N1704,9075.687728775,2581.09283045
 
Bullet10,0 g / 155 grBrenneke, TAGC.O.L. 83,5 mm / 3.287 inch
PowderStarting loadMaximum load
TypeWeightVelocityWeightVelocity
[g][grs][m/s][fps][g][grs][m/s][fps]
N5504,0762.889729434,4468.59743196
N5554,5069.491530024,8975.59883241
N1604,5069.489729434,9876.99783209
N1654,9977.092130225,40C83.3C10003281
N5604,7673.590729765,1679.69893245
C – Compressed load
 
Bullet10,0 g / 155 grLapua, Scenar / Scenar-LC.O.L. 84,0 mm / 3.307 inch
PowderStarting loadMaximum load
TypeWeightVelocityWeightVelocity
[g][grs][m/s][fps][g][grs][m/s][fps]
N1503,5054.085728124,0262.09273041
N5503,9060.287328644,3366.89633159
N5554,3066.489829464,7373.09773205
N1604,2565.687328644,7873.89553133
N1654,8074.189429335,29C81.6C9823222
N5604,6071.090429664,9776.79763202
N5654,7573.389329305,1879.99743196
C – Compressed load
 
Bullet10,7 g / 165 grHornady, SSTC.O.L. 84,8 mm / 3.340 inch
PowderStarting loadMaximum load
TypeWeightVelocityWeightVelocity
[g][grs][m/s][fps][g][grs][m/s][fps]
N5503,9561.087228614,2665.79393081
N5554,2465.487928844,6271.39483110
N1604,2565.686128254,7172.79363071
N1654,6872.288028875,0177.39513120
N5604,5169.687528714,8875.39533127
N5654,7473.187528715,1279.09473107
 
Bullet10,7 g / 165 grSBT, SierraC.O.L. 84,8 mm / 3.340 inch
PowderStarting loadMaximum load
TypeWeightVelocityWeightVelocity
[g][grs][m/s][fps][g][grs][m/s][fps]
N5503,9360.685928184,3066.49313054
N5554,0462.385628084,6471.69403084
N1603,5654.980626444,2765.99002953
N1654,3567.185027895,1479.39473107
N5604,4468.587028544,8574.89473107
N5654,6071.086828485,1479.39523123
N1705,0077.286228285,3883.09343064
 
Bullet10,9 g / 168 grA-Max, HornadyC.O.L. 84,8 mm / 3.340 inch
PowderStarting loadMaximum load
TypeWeightVelocityWeightVelocity
[g][grs][m/s][fps][g][grs][m/s][fps]
N5503,8659.685728124,2365.39293048
N5554,2064.886828484,6071.09373074
N1604,1063.383727464,5670.49142999
N1654,6071.087228615,0077.29443097
N5604,4769.086628414,8374.59423091
N5654,6571.886928515,0978.69423091
 
Bullet11,0 g / 170 grLapua, LockBaseC.O.L. 84,8 mm / 3.339 inch
PowderStarting loadMaximum load
TypeWeightVelocityWeightVelocity
[g][grs][m/s][fps][g][grs][m/s][fps]
N5503,8459.384727794,2565.69203018
N5554,0061.784627764,5470.19283045
N1603,9961.682226974,5369.99032963
N1654,5069.484127595,0477.89333061
N5604,4067.985928184,7573.39313054
N5654,5570.286128255,0577.99383077
N1704,8074.183727465,32F82.1F9213022
N5685,0077.284627765,15F79.5F8722861
F – Case full
 
Bullet11,0 g / 170 grLapua, Naturalis N558C.O.L. 84,0 mm / 3.307 inch
PowderStarting loadMaximum load
TypeWeightVelocityWeightVelocity
[g][grs][m/s][fps][g][grs][m/s][fps]
N5503,7057.181426714,0863.08922927
N5553,9060.282427034,3467.08982946
N1603,4052.575924904,0963.18642835
N1653,8058.678625794,9075.69112989
N5604,2565.683527404,5870.79102986
N5654,4067.984327664,80C74.1C9153002
C – Compressed load
 
Bullet11,6 g / 178 grELD-X, HornadyC.O.L. 84,8 mm / 3.340 inch
PowderStarting loadMaximum load
TypeWeightVelocityWeightVelocity
[g][grs][m/s][fps][g][grs][m/s][fps]
N1603,5054.079426053,7758.28322730
N1653,7057.177725494,91F75.8F9012956
N5604,2565.683027234,6772.19072976
F – Case full
 
Bullet11,7 g / 180 grGMX, HornadyC.O.L. 84,8 mm / 3.340 inch
PowderStarting loadMaximum load
TypeWeightVelocityWeightVelocity
[g][grs][m/s][fps][g][grs][m/s][fps]
N5553,5354.576625133,9561.08372746
N1603,5054.076425073,7958.58132667
N1653,6856.875024614,1363.78322730
N5603,8559.478125624,3166.58652838
N5653,9360.678725824,5269.88682848
 
Bullet12,0 g / 185 grLapua, MegaC.O.L. 82,5 mm / 3.248 inch
PowderStarting loadMaximum load
TypeWeightVelocityWeightVelocity
[g][grs][m/s][fps][g][grs][m/s][fps]
N5503,8559.481326674,1764.48762874
N5554,0362.281126614,4769.08812890
N1603,8759.776625134,4168.18592818
N1654,1664.278225664,8274.48812890
N5604,3366.881726804,7272.88902920
N5654,4668.881926874,9676.58972943
N1704,7573.380426385,23C80.7C8822894
N5685,0077.283127265,15F79.5F8532799
C – Compressed load
 
Bullet13,3 g / 205 grBerger, Elite HunterC.O.L. 84,8 mm / 3.340 inch
PowderStarting loadMaximum load
TypeWeightVelocityWeightVelocity
[g][grs][m/s][fps][g][grs][m/s][fps]
N5503,7057.177925564,0362.28412759
N5554,0061.778125624,4268.28502789
N1604,0562.577025264,5369.98502789
N1654,6071.080326354,9275.98732864
N5604,3266.780026254,6772.18662841
N5654,4869.180226314,8474.78682848
N1704,7072.578425725,10C78.7C8532799
N5685,0277.581126615,15C79.5C8312726
C – Compressed load
 
Bullet13,5 g / 208 grBerger, Long Range Hybrid TargetC.O.L. 84,8 mm / 3.340 inch
PowderStarting loadMaximum load
TypeWeightVelocityWeightVelocity
[g][grs][m/s][fps][g][grs][m/s][fps]
N5503,7057.177825524,0562.58372746
N5553,9861.477525434,3867.68422762
N1604,0061.776425074,4568.78352740
N1654,5269.879526084,8775.28592818
N5604,3066.479225984,6471.68612825
N5654,5069.480126284,8574.88632831
N1704,7072.578525755,10C78.7C8522795
C – Compressed load
 
Bullet14,3 g / 220 grBerger, Long Range Hybrid TargetC.O.L. 88,0 mm(1 / 3.465 inch
PowderStarting loadMaximum load
TypeWeightVelocityWeightVelocity
[g][grs][m/s][fps][g][grs][m/s][fps]
N5503,6055.675024613,8859.98012628
N5553,8058.674324384,2265.18072648
N1603,6656.572223694,2265.17982618
N1654,0863.074624484,6471.68222697
N5604,1063.376625134,5069.48322730
N5654,2565.676625134,6872.28352740
N1704,5269.875824874,95F76.4F8262710
N5684,8975.578625795,15C79.5C8302723
1) The cartridge overall length exceeds the CIP maximum.
C – Compressed load
 
Bullet14,3 g / 220 grLapua, OTM Scenar-LC.O.L. 84,8 mm / 3.340 inch
PowderStarting loadMaximum load
TypeWeightVelocityWeightVelocity
[g][grs][m/s][fps][g][grs][m/s][fps]
N1653,9661.172123654,4769.07912595
N5604,0362.274024284,4468.58162677
N5654,4168.177125304,73C73.0C8332733
N1704,6671.976425075,01C77.3C8302723
N5684,9676.578625795,20C80.2C8312726
N5705,0077.281026575,20C80.2C8562808
C – Compressed load
 
Bullet14,6 g / 225 grELD-M, HornadyC.O.L. 86,0 mm(2 / 3.386 inch
PowderStarting loadMaximum load
TypeWeightVelocityWeightVelocity
[g][grs][m/s][fps][g][grs][m/s][fps]
N5553,8058.673524114,1964.77972615
N1603,7057.171823564,1564.07832569
N1654,0061.771723524,61C71.1C7962612
N5604,0061.773324054,4568.78112661
N5654,1564.073924254,67C72.1C8182684
N5684,8074.177325365,10C78.7C8212694