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Load data for .338-378 Weath. Mag. + .338 | 225gr | Woodleigh HS

Recommended Powder(s): ADI AR 2213, Alliant Reloder-22, Bofors RP5, ReloadSwiss RS 76, Vihtavuori N560

.338-378 Weath. Mag. + .338 | 225gr | Woodleigh HS

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.338 | 225gr | Woodleigh HS
Manufacturer SKU:
H338
Bullet Weight:
225gr | 14.6g
Bullet Diameter:
0.338" | 8.59mm
Bullet Length:
<<locked>>
Caliber:
.338-378 Weath. Mag. load data
Case Length (l3):
2.910" | 73.9mm
Cartridge Length (C.O.L.):
<<locked>>
Seated Depth:
<<locked>>
Shank Seated Depth:
<<locked>>
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_B12048_C472
Last updated:
2026-02-07

Load data for 108 loads in caliber .338-378 Weath. Mag. with .338 | 225gr | Woodleigh HS bullet and 54 powders such as ADI AR 2213, Alliant Reloder-22, Bofors RP5, ReloadSwiss RS 76, Vihtavuori N560. 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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  • We recommend you limit powder range to relevant brands to speed up re-calculation of results

    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.

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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>>
87%
57130
90%
**46
100%
ADI AR 2213 👍
<<locked>>
90%
56927
89%
**82
99%
ADI AR 2217
<<locked>>
97%
53171
83%
**13
99%
[ADI AR 2218]*
<<locked>>
97%
46282
73%
**61
94%
ADI AR 2225
<<locked>>
97%
48298
76%
**84
100%
Accurate 3100
<<locked>>
90%
57159
90%
**81
100%
Accurate MAGPRO
<<locked>>
90%
57043
89%
**86
98%
Alliant Reloder-19
<<locked>>
87%
57348
90%
**36
100%
Alliant Reloder-22 👍
<<locked>>
90%
57261
90%
**79
100%
Alliant Reloder-23
<<locked>>
91%
57217
90%
**10
100%
Alliant Reloder-25
<<locked>>
95%
57435
90%
**89
100%
Alliant Reloder-26
<<locked>>
87%
57203
90%
**86
100%
Alliant Reloder-33
<<locked>>
97%
50763
80%
**23
96%
[Alliant Reloder-50]*
<<locked>>
97%
43062
67%
**66
93%
Baschieri & Pellagri 109
<<locked>>
92%
57029
89%
**23
98%
Bofors RP15
<<locked>>
92%
57174
90%
**76
100%
Bofors RP30
<<locked>>
97%
56536
89%
**86
100%
Bofors RP5 👍
<<locked>>
90%
57261
90%
**79
100%
Hodgdon H1000
<<locked>>
97%
53171
83%
**13
99%
Hodgdon H4350
<<locked>>
85%
57043
89%
**81
100%
Hodgdon H4831
<<locked>>
92%
56956
89%
**20
99%
Hodgdon H4831 SC
<<locked>>
89%
56956
89%
**20
99%
Hodgdon Hybrid 100V
<<locked>>
85%
57101
89%
**48
100%
Hodgdon Retumbo
<<locked>>
97%
48298
76%
**84
100%
Hodgdon TrailBoss
<<locked>>
97%
36042
56%
**31
100%
IMR 4350
<<locked>>
84%
57392
90%
**90
100%
IMR 4831
<<locked>>
87%
57058
89%
**77
100%
IMR 4955 Enduron
<<locked>>
90%
56985
89%
**90
99%
IMR 7828 SSC
<<locked>>
89%
57261
90%
**92
100%
[IMR 7977 Enduron]*
<<locked>>
95%
57261
90%
**54
94%
IMR 8133 Enduron
<<locked>>
97%
44396
70%
**92
98%
Lovex S071
<<locked>>
95%
57276
90%
**77
100%
Norma 204
<<locked>>
83%
56971
89%
**27
100%
Norma 217
<<locked>>
97%
44657
70%
**05
99%
Norma MRP
<<locked>>
88%
57261
90%
**89
100%
Ramshot Grand
<<locked>>
87%
57261
90%
**99
100%
Ramshot Hunter
<<locked>>
83%
57319
90%
**20
100%
Ramshot Magnum
<<locked>>
90%
57276
90%
**43
100%
ReloadSwiss RS 14
<<locked>>
96%
36811
58%
**67
100%
ReloadSwiss RS 76 👍
<<locked>>
95%
57290
90%
**64
100%
ReloadSwiss RS 80
<<locked>>
97%
56130
88%
**02
99%
Rottweil R 904
<<locked>>
87%
56985
89%
**97
99%
Rottweil R 905
<<locked>>
88%
57421
90%
**40
100%
Somchem S361
<<locked>>
86%
57261
90%
**74
99%
Somchem S365
<<locked>>
84%
57217
90%
**87
100%
Somchem S385
<<locked>>
87%
57101
89%
**04
100%
Vihtavuori N165
<<locked>>
92%
57072
89%
**90
100%
[Vihtavuori N170]*
<<locked>>
97%
49661
78%
**79
94%
Vihtavuori N555
<<locked>>
88%
57043
89%
**13
100%
Vihtavuori N560 👍
<<locked>>
90%
57029
89%
**89
99%
Vihtavuori N565
<<locked>>
94%
56942
89%
**69
99%
Vihtavuori N568
<<locked>>
97%
56782
89%
**05
99%
Vihtavuori N570
<<locked>>
97%
54389
85%
**09
96%
Winchester StaBALL HD
<<locked>>
91%
57261
90%
**05
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2209
<<locked>>
81%
46557
73%
**62
99%
ADI AR 2213
<<locked>>
81%
41669
65%
**97
96%
[ADI AR 2217]*
<<locked>>
81%
31067
49%
**21
92%
[ADI AR 2218]*
<<locked>>
92%
39421
62%
**87
90%
[ADI AR 2225]*
<<locked>>
81%
28268
44%
**79
94%
Accurate 3100
<<locked>>
81%
42424
66%
**35
100%
[Accurate MAGPRO]*
<<locked>>
81%
41481
65%
**90
94%
Alliant Reloder-19
<<locked>>
81%
46514
73%
**53
99%
Alliant Reloder-22
<<locked>>
81%
42351
66%
**00
98%
Alliant Reloder-23
<<locked>>
81%
40988
64%
**51
100%
Alliant Reloder-25
<<locked>>
81%
35259
55%
**75
99%
Alliant Reloder-26
<<locked>>
81%
46122
72%
**12
100%
[Alliant Reloder-33]*
<<locked>>
88%
36709
58%
**21
90%
[Alliant Reloder-50]*
<<locked>>
94%
37971
59%
**48
90%
[Baschieri & Pellagri 109]*
<<locked>>
81%
40814
64%
**18
93%
Bofors RP15
<<locked>>
81%
39363
62%
**31
97%
[Bofors RP30]*
<<locked>>
81%
32808
51%
**03
93%
Bofors RP5
<<locked>>
81%
42351
66%
**00
98%
[Hodgdon H1000]*
<<locked>>
81%
31067
49%
**21
92%
Hodgdon H4350
<<locked>>
81%
49719
78%
**66
100%
Hodgdon H4831
<<locked>>
81%
39030
61%
**82
95%
Hodgdon H4831 SC
<<locked>>
81%
43598
68%
**84
96%
Hodgdon Hybrid 100V
<<locked>>
81%
50372
79%
**53
100%
[Hodgdon Retumbo]*
<<locked>>
81%
28268
44%
**79
94%
Hodgdon TrailBoss
<<locked>>
81%
28660
45%
**70
100%
IMR 4350
<<locked>>
81%
52214
82%
**12
100%
IMR 4831
<<locked>>
81%
48008
75%
**40
100%
IMR 4955 Enduron
<<locked>>
81%
43018
67%
**48
96%
IMR 7828 SSC
<<locked>>
81%
42931
67%
**30
97%
[IMR 7977 Enduron]*
<<locked>>
87%
44788
70%
**38
90%
[IMR 8133 Enduron]*
<<locked>>
84%
28427
45%
**92
90%
Lovex S071
<<locked>>
81%
36550
57%
**10
98%
Norma 204
<<locked>>
81%
53040
83%
**58
99%
[Norma 217]*
<<locked>>
81%
25817
40%
**20
91%
Norma MRP
<<locked>>
81%
44831
70%
**79
99%
Ramshot Grand
<<locked>>
81%
45353
71%
**99
98%
Ramshot Hunter
<<locked>>
81%
53142
83%
**61
100%
Ramshot Magnum
<<locked>>
81%
39900
63%
**48
98%
ReloadSwiss RS 14
<<locked>>
81%
29428
46%
**13
100%
ReloadSwiss RS 76
<<locked>>
81%
33692
53%
**79
97%
[ReloadSwiss RS 80]*
<<locked>>
82%
31502
49%
**90
90%
Rottweil R 904
<<locked>>
81%
47427
74%
**36
98%
Rottweil R 905
<<locked>>
81%
45948
72%
**40
99%
Somchem S361
<<locked>>
81%
48399
76%
**30
98%
Somchem S365
<<locked>>
81%
51721
81%
**08
100%
Somchem S385
<<locked>>
81%
46441
73%
**20
99%
Vihtavuori N165
<<locked>>
81%
39349
62%
**69
98%
[Vihtavuori N170]*
<<locked>>
90%
39958
63%
**92
90%
Vihtavuori N555
<<locked>>
81%
45788
72%
**30
100%
Vihtavuori N560
<<locked>>
81%
42467
67%
**26
96%
[Vihtavuori N565]*
<<locked>>
81%
36898
58%
**82
94%
[Vihtavuori N568]*
<<locked>>
81%
32518
51%
**00
90%
[Vihtavuori N570]*
<<locked>>
87%
37724
59%
**61
90%
Winchester StaBALL HD
<<locked>>
81%
38348
60%
**97
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.

<<locked>>... you need to buy an access license to unlock the data

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