.243 WSSM

Test barrel: 690 mm (27”), 1 in 10” twist
Primers: Small Rifle
Cases: Winchester, trim-to length 42,20 mm (1.660”)

Bullet	5,0 g / 77 gr		Lapua, HP		C.O.L. 59,4 mm / 2.339 inch
Powder	Starting load				Maximum load
Type	Weight		Velocity		Weight		Velocity
	[g]	[grs]	[m/s]	[fps]	[g]	[grs]	[m/s]	[fps]
N140	2,46	38.0	973	3192	2,74	42.3	1071	3514
N540	2,52	38.9	988	3241	2,80	43.2	1096	3596
N150	2,48	38.3	978	3209	2,84	43.8	1081	3547
Bullet	5,8 g / 90 gr		Lapua, Naturalis		C.O.L. 58,0 mm / 2.283 inch
Powder	Starting load				Maximum load
Type	Weight		Velocity		Weight		Velocity
	[g]	[grs]	[m/s]	[fps]	[g]	[grs]	[m/s]	[fps]
N540	2,34	36.1	896	2940	2,68	41.4	1001	3284
N150	2,32	35.8	877	2877	2,66	41.1	979	3212
N550	2,56	39.5	909	2982	2,84	43.8	1019	3343
Bullet	6,5 g / 100 gr		Lapua, SP		C.O.L. 57,0 mm / 2.244 inch
Powder	Starting load				Maximum load
Type	Weight		Velocity		Weight		Velocity
	[g]	[grs]	[m/s]	[fps]	[g]	[grs]	[m/s]	[fps]
N140	2,20	34.0	832	2730	2,46	38.0	914	2999
N540	2,18	33.6	843	2766	2,55	39.4	946	3104
N550	2,41	37.2	868	2848	2,75	42.4	968	3176

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