.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	13,0 g / 200 gr		Hornady, SP		C.O.L. 85,0 mm(1 / 3.346 inch
Powder	Starting load				Maximum load
Type	Weight		Velocity		Weight		Velocity
	[g]	[grs]	[m/s]	[fps]	[g]	[grs]	[m/s]	[fps]
N540	3,90	60.2	814	2671	4,34	67.0	888	2913
N150	3,85	59.4	801	2628	4,34	67.0	873	2864
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
1) The cartridge overall length exceeds the CIP maximum. F – Case full
Bullet	14,6 g / 225 gr		Hornady, SP		C.O.L. 84,0 mm / 3.307 inch
Powder	Starting load				Maximum load
Type	Weight		Velocity		Weight		Velocity
	[g]	[grs]	[m/s]	[fps]	[g]	[grs]	[m/s]	[fps]
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
Bullet	15,0 g / 231 gr		Lapua, Naturalis LR		C.O.L. 84,3 mm / 3.319 inch
Powder	Starting load				Maximum load
Type	Weight		Velocity		Weight		Velocity
	[g]	[grs]	[m/s]	[fps]	[g]	[grs]	[m/s]	[fps]
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
F – Case full
Bullet	16,2 g / 250 gr		Lapua, Scenar		C.O.L. 84,0 mm / 3.307 inch
Powder	Starting load				Maximum load
Type	Weight		Velocity		Weight		Velocity
	[g]	[grs]	[m/s]	[fps]	[g]	[grs]	[m/s]	[fps]
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
Bullet	16,2 g / 250 gr		Sierra, SBT		C.O.L. 84,8 mm / 3.339 inch
Powder	Starting load				Maximum load
Type	Weight		Velocity		Weight		Velocity
	[g]	[grs]	[m/s]	[fps]	[g]	[grs]	[m/s]	[fps]
N160	4,25	65.6	758	2488	4,58	70.7	810	2659
N165	4,63	71.4	779	2555	5,02	77.4	835	2738
N560	4,39	67.7	774	2540	4,78	73.7	831	2728
Bullet	16,2 g / 250 gr		Speer, Grand Slam		C.O.L. 83,8 mm / 3.299 inch
Powder	Starting load				Maximum load
Type	Weight		Velocity		Weight		Velocity
	[g]	[grs]	[m/s]	[fps]	[g]	[grs]	[m/s]	[fps]
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
Bullet	17,8 g / 275 gr		Speer, SP		C.O.L. 85,0 mm(1 / 3.346 inch
Powder	Starting load				Maximum load
Type	Weight		Velocity		Weight		Velocity
	[g]	[grs]	[m/s]	[fps]	[g]	[grs]	[m/s]	[fps]
N165	4,63	71.5	731	2398	5,01	77.3	785	2576
1) The cartridge overall length exceeds the CIP maximum.
Bullet	17,8 g / 275 gr		Swift, A-Frame		C.O.L. 86,5 mm(1 / 3.406 inch
Powder	Starting load				Maximum load
Type	Weight		Velocity		Weight		Velocity
	[g]	[grs]	[m/s]	[fps]	[g]	[grs]	[m/s]	[fps]
N160	3,55	54.8	634	2080	4,15	64.0	717	2352
N165	3,79	58.5	651	2136	4,35	67.1	725	2379
N560	3,76	58.0	651	2136	4,30	66.3	731	2398
1) The cartridge overall length exceeds the CIP maximum.
Bullet	19,4 g / 300 gr		Sierra, HPBT		C.O.L. 84,8 mm / 3.339 inch
Powder	Starting load				Maximum load
Type	Weight		Velocity		Weight		Velocity
	[g]	[grs]	[m/s]	[fps]	[g]	[grs]	[m/s]	[fps]
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
Bullet	19,4 g / 300 gr		Woodleigh, RNSP		C.O.L. 83,5 mm / 3.287 inch
Powder	Starting load				Maximum load
Type	Weight		Velocity		Weight		Velocity
	[g]	[grs]	[m/s]	[fps]	[g]	[grs]	[m/s]	[fps]
N160	3,58	55.2	626	2054	4,10	63.3	692	2270
N165	3,92	60.5	637	2090	4,46	68.8	711	2333
N560	3,92	60.5	658	2159	4,55	70.2	731	2398

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