.223 WSSM

Test barrel: 640 mm (25”), 1 in 8” twist
Primers: Large Rifle
Cases: Winchester, trim-to length 42,20 mm (1.661”)
 
Bullet3,3 g / 51 grLapua, HPCEC.O.L. 54,6 mm / 2.150 inch
PowderStarting loadMaximum load
TypeWeightVelocityWeightVelocity
[g][grs][m/s][fps][g][grs][m/s][fps]
N5302,2234.3105534612,5940.012053953
N1352,1032.4101133172,6140.311803871
N1402,4938.4107435242,8343.711833881
 
Bullet3,6 g / 55 grLapua, Soft PointC.O.L. 54,5 mm / 2.146 inch
PowderStarting loadMaximum load
TypeWeightVelocityWeightVelocity
[g][grs][m/s][fps][g][grs][m/s][fps]
N5302,1433.0100933102,4838.311473763
N1352,0932.3100132842,4938.411193671
N1402,2434.699632682,6841.411403740
 
Bullet4,5 g / 69 grLapua, ScenarC.O.L. 56,7 mm / 2.232 inch
PowderStarting loadMaximum load
TypeWeightVelocityWeightVelocity
[g][grs][m/s][fps][g][grs][m/s][fps]
N1402,2935.393330612,6140.310303379
N5402,3536.396031502,6841.410773533
N1502,3336.094731072,6140.310483438
N5502,4838.397231892,8443.810783537