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Load data for .338-378 Weath. Mag. + .338 | 200gr | Nosler Expansion Tip

Recommended Powder(s): ADI AR 2209, Alliant Reloder-19, Alliant Reloder-22, Alliant Reloder-25, Norma MRP

.338-378 Weath. Mag. + .338 | 200gr | Nosler Expansion Tip

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.338 | 200gr | Nosler Expansion Tip
Manufacturer SKU:
59186
Bullet Weight:
200gr | 13.0g
Bullet Diameter:
0.338" | 8.59mm
Bullet Length:
1.427" | 36.2mm
Caliber:
.338-378 Weath. Mag. load data
Case Length (l3):
2.910" | 73.9mm
Cartridge Length (C.O.L.):
3.694" | 93.8mm
Seated Depth:
0.643" | 16.3mm
Shank Seated Depth:
0.505" | 12.8mm
Case Capacity:
137.0 Grains of Water | 8.90 cm³
Primer Size:
Large Rifle Magnum (LRM)
Max. allowed Pressure:
63817 psi | 4400 bar
LID:
LID_B4139_C472
Last updated:
2025-09-18
Recommended Twist Rate:
1:13 - 1:11

Load data for 122 loads in caliber .338-378 Weath. Mag. with .338 | 200gr | Nosler Expansion Tip bullet and 61 powders such as ADI AR 2209, Alliant Reloder-19, Alliant Reloder-22, Alliant Reloder-25, Norma MRP. The key underlying parameters are shown in the table above.

  • Important Notice: DO NOT go below Minimum Charge or above Maximum Charge unless there are reasons. Since xxlreloading.com has no control over the equipment and components used by the customer and the data used in connection with the website, any responsibility and liability for the results achieved is rejected. Also see our Terms of Service

    Questions regarding the load data: Please read the information in the next tab "Explanations".

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    Use the Personalized Load Calculator to customize loads to your own specific requirements. Find more details in the help section.

    Our default view only displays powders/loads that fulfill certain criteria: Max pressure of a load <=90% of Max. Standardized Pressure. Fill Rate (Min FR): >80% and <100% for rife loads,  >60% and <100% for pistol loads. Min. Propellant Combustion (Min z): >90% for rifle loads , >80% for pistol/revolver loads. Relax these criteria at your own risk to potentially get more powders shown in the load tables.

Click on the desired row in the tables below to add a specific load / powder to your Diary and manage there.

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2209 👍
<<locked>>
90%
57392
90%
**84
99%
ADI AR 2213
<<locked>>
93%
56985
89%
**17
99%
ADI AR 2217
<<locked>>
97%
47805
75%
**36
97%
ADI AR 2225
<<locked>>
97%
43323
68%
**04
99%
Accurate 3100
<<locked>>
93%
57363
90%
**25
100%
Accurate 4350
<<locked>>
84%
57334
90%
**38
100%
Accurate MAGPRO
<<locked>>
93%
56869
89%
**17
97%
Alliant Reloder-16
<<locked>>
86%
57145
90%
**81
100%
Alliant Reloder-19 👍
<<locked>>
90%
57406
90%
**91
99%
Alliant Reloder-22 👍
<<locked>>
93%
57276
90%
**20
99%
Alliant Reloder-23
<<locked>>
94%
57203
90%
**68
100%
Alliant Reloder-25 👍
<<locked>>
97%
54433
85%
**91
100%
Alliant Reloder-26
<<locked>>
90%
56956
89%
**40
100%
[Alliant Reloder-33]*
<<locked>>
97%
44541
70%
**23
92%
Hodgdon H1000
<<locked>>
97%
47805
75%
**36
97%
Hodgdon H4350
<<locked>>
88%
57203
90%
**25
100%
Hodgdon H4831
<<locked>>
95%
57058
89%
**64
98%
Hodgdon H4831 SC
<<locked>>
92%
57058
89%
**64
98%
Hodgdon Hybrid 100V
<<locked>>
88%
57435
90%
**02
100%
Hodgdon LVR
<<locked>>
83%
57087
89%
**48
100%
Hodgdon Retumbo
<<locked>>
97%
43323
68%
**04
99%
Hodgdon Superperformance
<<locked>>
83%
57421
90%
**07
100%
Hodgdon TrailBoss
<<locked>>
96%
35549
56%
**16
100%
IMR 4350
<<locked>>
86%
57000
89%
**18
100%
IMR 4831
<<locked>>
89%
57043
89%
**28
100%
IMR 4955 Enduron
<<locked>>
93%
57319
90%
**31
98%
IMR 7828 SSC
<<locked>>
92%
57043
89%
**33
99%
[IMR 7977 Enduron]*
<<locked>>
97%
55709
87%
**46
91%
[IMR 8133 Enduron]*
<<locked>>
97%
39247
62%
**05
94%
Lovex S065
<<locked>>
84%
57276
90%
**99
100%
Lovex S070
<<locked>>
85%
57087
89%
**18
100%
Lovex S071
<<locked>>
97%
55143
86%
**89
100%
Norma 204
<<locked>>
86%
57334
90%
**71
99%
Norma 217
<<locked>>
97%
39262
62%
**31
97%
Norma MRP 👍
<<locked>>
91%
57348
90%
**36
100%
Norma URP
<<locked>>
85%
56971
89%
**41
100%
Ramshot Hunter
<<locked>>
86%
57305
90%
**64
100%
Ramshot Magnum
<<locked>>
93%
57203
90%
**84
100%
ReloadSwiss RS 14
<<locked>>
97%
36651
57%
**62
100%
ReloadSwiss RS 62
<<locked>>
84%
57000
89%
**61
100%
ReloadSwiss RS 70
<<locked>>
85%
57116
90%
**17
100%
ReloadSwiss RS 76
<<locked>>
97%
54114
85%
**59
100%
ReloadSwiss RS 80
<<locked>>
97%
49037
77%
**18
96%
Rottweil R 904
<<locked>>
89%
57116
89%
**41
99%
Rottweil R 905
<<locked>>
90%
57319
90%
**81
99%
Rottweil R 907
<<locked>>
83%
57043
89%
**05
100%
SNPE Vectan Tubal 7000
<<locked>>
84%
57130
90%
**63
100%
Shooters World Long Rifle
<<locked>>
84%
57276
90%
**99
100%
Somchem S361
<<locked>>
88%
57101
89%
**02
98%
Somchem S365
<<locked>>
87%
57305
90%
**48
100%
Somchem S385
<<locked>>
90%
56942
89%
**31
100%
Vihtavuori N150
<<locked>>
86%
57217
90%
**46
100%
Vihtavuori N160
<<locked>>
83%
57145
90%
**12
100%
Vihtavuori N165
<<locked>>
95%
57319
90%
**28
100%
Vihtavuori N555
<<locked>>
91%
57290
90%
**71
100%
Vihtavuori N560
<<locked>>
93%
57276
90%
**36
98%
Vihtavuori N565
<<locked>>
97%
57246
90%
**17
99%
Vihtavuori N568
<<locked>>
97%
50154
79%
**35
96%
[Vihtavuori N570]*
<<locked>>
97%
48269
76%
**25
93%
Winchester 6.5 StaBALL
<<locked>>
85%
57203
90%
**76
100%
Winchester StaBALL HD
<<locked>>
95%
57232
90%
**76
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2209
<<locked>>
81%
42424
66%
**08
96%
[ADI AR 2213]*
<<locked>>
81%
38174
60%
**36
93%
[ADI AR 2217]*
<<locked>>
85%
32169
50%
**59
90%
[ADI AR 2225]*
<<locked>>
82%
27209
43%
**41
90%
Accurate 3100
<<locked>>
81%
38798
61%
**84
98%
Accurate 4350
<<locked>>
81%
51213
80%
**53
100%
[Accurate MAGPRO]*
<<locked>>
81%
37492
59%
**30
91%
Alliant Reloder-16
<<locked>>
81%
48863
77%
**53
100%
Alliant Reloder-19
<<locked>>
81%
42554
67%
**08
97%
Alliant Reloder-22
<<locked>>
81%
38479
60%
**43
95%
Alliant Reloder-23
<<locked>>
81%
36970
58%
**07
100%
Alliant Reloder-25
<<locked>>
81%
32242
51%
**18
97%
Alliant Reloder-26
<<locked>>
81%
41263
65%
**61
100%
[Alliant Reloder-33]*
<<locked>>
94%
40828
64%
**41
90%
[Hodgdon H1000]*
<<locked>>
85%
32169
50%
**59
90%
Hodgdon H4350
<<locked>>
81%
46064
72%
**31
98%
[Hodgdon H4831]*
<<locked>>
81%
35882
56%
**28
92%
[Hodgdon H4831 SC]*
<<locked>>
81%
40030
63%
**33
94%
Hodgdon Hybrid 100V
<<locked>>
81%
46122
72%
**28
100%
Hodgdon LVR
<<locked>>
81%
53040
83%
**89
100%
[Hodgdon Retumbo]*
<<locked>>
82%
27209
43%
**41
90%
Hodgdon Superperformance
<<locked>>
81%
52953
83%
**31
100%
Hodgdon TrailBoss
<<locked>>
81%
28442
45%
**55
100%
IMR 4350
<<locked>>
81%
48457
76%
**71
99%
IMR 4831
<<locked>>
81%
44106
69%
**08
100%
[IMR 4955 Enduron]*
<<locked>>
81%
39813
62%
**97
94%
[IMR 7828 SSC]*
<<locked>>
81%
39088
61%
**76
94%
[IMR 7977 Enduron]*
<<locked>>
94%
51024
80%
**67
90%
[IMR 8133 Enduron]*
<<locked>>
90%
31662
50%
**02
90%
Lovex S065
<<locked>>
81%
52112
82%
**20
100%
Lovex S070
<<locked>>
81%
50488
79%
**10
99%
Lovex S071
<<locked>>
81%
33562
53%
**59
96%
Norma 204
<<locked>>
81%
48718
76%
**10
98%
[Norma 217]*
<<locked>>
86%
27572
43%
**87
90%
Norma MRP
<<locked>>
81%
40495
63%
**22
97%
Norma URP
<<locked>>
81%
49995
78%
**36
100%
Ramshot Hunter
<<locked>>
81%
48689
76%
**27
100%
Ramshot Magnum
<<locked>>
81%
35853
56%
**71
95%
ReloadSwiss RS 14
<<locked>>
81%
29167
46%
**98
100%
ReloadSwiss RS 62
<<locked>>
81%
51184
80%
**69
100%
ReloadSwiss RS 70
<<locked>>
81%
49313
77%
**82
100%
[ReloadSwiss RS 76]*
<<locked>>
81%
30690
48%
**85
93%
[ReloadSwiss RS 80]*
<<locked>>
87%
34853
55%
**94
90%
Rottweil R 904
<<locked>>
81%
43830
69%
**92
96%
Rottweil R 905
<<locked>>
81%
42105
66%
**92
97%
Rottweil R 907
<<locked>>
81%
53142
83%
**43
99%
SNPE Vectan Tubal 7000
<<locked>>
81%
51024
80%
**64
99%
Shooters World Long Rifle
<<locked>>
81%
52112
82%
**20
100%
Somchem S361
<<locked>>
81%
44802
70%
**72
95%
Somchem S365
<<locked>>
81%
47021
74%
**84
100%
Somchem S385
<<locked>>
81%
42714
67%
**79
98%
Vihtavuori N150
<<locked>>
81%
49603
78%
**35
100%
Vihtavuori N160
<<locked>>
81%
53388
84%
**49
100%
Vihtavuori N165
<<locked>>
81%
36027
56%
**15
95%
Vihtavuori N555
<<locked>>
81%
41553
65%
**95
100%
[Vihtavuori N560]*
<<locked>>
81%
38363
60%
**56
93%
[Vihtavuori N565]*
<<locked>>
81%
33344
52%
**08
91%
[Vihtavuori N568]*
<<locked>>
88%
36579
57%
**26
90%
[Vihtavuori N570]*
<<locked>>
93%
41684
65%
**81
90%
Winchester 6.5 StaBALL
<<locked>>
81%
50589
79%
**77
100%
Winchester StaBALL HD
<<locked>>
81%
33257
52%
**26
100%

Start Load - Barrel Length: 23.60''

Any powder missing? Then click here.

FR ... fill rate of the cartridge in percent

MaxP ... max. pressure of load in psi or bar

% ... max. pressure of load in percent of the maximum allowed pressure for this caliber 

V(0) ... muzzle velocity in feet per second (fps) or  meters per second (m/s)

z ... powder burnt in percent

[...] *... not dangerous but load has suboptimal powder burnt with possible characteristics such as extensive muzzle flash or inaccurate loads.

[...] ²... fill rate low - you might want to consider using a filler to ensure proper ignition.

[...] ᴾ... possible press load - work up slowly to this load while watching for signs of excessive pressure.

👍  ... recommended powder/load for this caliber and bullet combination based on its ballistic performance.

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