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Load data for .338-378 Weath. Mag. + .338 | 225gr | Barnes TSX S

Recommended Powder(s): ADI AR 2213, Alliant Reloder-22, IMR 7828 SSC, ReloadSwiss RS 76, Vihtavuori N560

.338-378 Weath. Mag. + .338 | 225gr | Barnes TSX S

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.338 | 225gr | Barnes TSX S
Manufacturer SKU:
30412
Bullet Weight:
225gr | 14.6g
Bullet Diameter:
0.338" | 8.59mm
Bullet Length:
1.418" | 36.0mm
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:
0.634" | 16.1mm
Shank Seated Depth:
0.634" | 16.1mm
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_B675_C472
Last updated:
2025-09-18

Load data for 106 loads in caliber .338-378 Weath. Mag. with .338 | 225gr | Barnes TSX S bullet and 53 powders such as ADI AR 2213, Alliant Reloder-22, IMR 7828 SSC, 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>>
88%
57014
89%
**33
100%
ADI AR 2213 👍
<<locked>>
91%
56985
89%
**76
99%
ADI AR 2217
<<locked>>
97%
51459
81%
**84
99%
[ADI AR 2218]*
<<locked>>
97%
44599
70%
**22
93%
ADI AR 2225
<<locked>>
97%
46586
73%
**44
100%
Accurate 3100
<<locked>>
91%
57188
90%
**74
100%
Accurate MAGPRO
<<locked>>
91%
57421
90%
**86
98%
Alliant Reloder-16
<<locked>>
84%
57246
90%
**33
100%
Alliant Reloder-19
<<locked>>
88%
57363
90%
**43
100%
Alliant Reloder-22 👍
<<locked>>
91%
57174
90%
**72
100%
Alliant Reloder-23
<<locked>>
92%
57232
90%
**10
100%
Alliant Reloder-25
<<locked>>
96%
57392
90%
**89
100%
Alliant Reloder-26
<<locked>>
88%
57392
90%
**95
100%
Alliant Reloder-33
<<locked>>
97%
48747
76%
**94
95%
Hodgdon H1000
<<locked>>
97%
51459
81%
**84
99%
Hodgdon H4350
<<locked>>
86%
57188
90%
**84
100%
Hodgdon H4831
<<locked>>
93%
57145
90%
**20
99%
Hodgdon H4831 SC
<<locked>>
90%
57043
89%
**23
99%
Hodgdon Hybrid 100V
<<locked>>
86%
57261
90%
**51
100%
Hodgdon Retumbo
<<locked>>
97%
46586
73%
**44
100%
Hodgdon TrailBoss
<<locked>>
96%
35737
56%
**18
100%
IMR 4350
<<locked>>
85%
57305
90%
**87
100%
IMR 4831
<<locked>>
88%
57261
90%
**81
100%
IMR 4955 Enduron
<<locked>>
91%
57116
90%
**90
99%
IMR 7828 SSC 👍
<<locked>>
90%
57145
90%
**86
99%
[IMR 7977 Enduron]*
<<locked>>
96%
57116
89%
**48
94%
IMR 8133 Enduron
<<locked>>
97%
42714
67%
**53
97%
Lovex S070
<<locked>>
83%
57130
90%
**74
100%
Lovex S071
<<locked>>
96%
57188
90%
**74
100%
Norma 204
<<locked>>
84%
57290
90%
**17
100%
Norma 217
<<locked>>
97%
42815
67%
**69
99%
Norma MRP
<<locked>>
89%
57406
90%
**95
100%
Norma URP
<<locked>>
83%
57363
90%
**00
100%
Ramshot Hunter
<<locked>>
84%
57276
90%
**20
100%
Ramshot Magnum
<<locked>>
91%
56971
89%
**46
100%
ReloadSwiss RS 14
<<locked>>
97%
36912
58%
**64
100%
ReloadSwiss RS 70
<<locked>>
83%
57116
89%
**63
100%
ReloadSwiss RS 76 👍
<<locked>>
96%
57130
90%
**51
100%
ReloadSwiss RS 80
<<locked>>
97%
54070
85%
**76
98%
Rottweil R 904
<<locked>>
88%
57334
90%
**00
99%
Rottweil R 905
<<locked>>
88%
57348
90%
**30
100%
Somchem S361
<<locked>>
87%
57014
89%
**67
99%
Somchem S365
<<locked>>
85%
57377
90%
**90
100%
Somchem S385
<<locked>>
88%
57145
90%
**97
100%
Vihtavuori N150
<<locked>>
84%
57334
90%
**02
100%
Vihtavuori N165
<<locked>>
93%
57421
90%
**87
100%
[Vihtavuori N170]*
<<locked>>
97%
48153
75%
**53
93%
Vihtavuori N555
<<locked>>
89%
57232
90%
**10
100%
Vihtavuori N560 👍
<<locked>>
91%
57159
90%
**92
99%
Vihtavuori N565
<<locked>>
95%
57000
89%
**72
99%
Vihtavuori N568
<<locked>>
97%
54766
86%
**76
98%
Vihtavuori N570
<<locked>>
97%
52402
82%
**63
96%
Winchester StaBALL HD
<<locked>>
92%
57305
90%
**12
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2209
<<locked>>
81%
45382
71%
**36
98%
ADI AR 2213
<<locked>>
81%
40538
64%
**67
96%
[ADI AR 2217]*
<<locked>>
81%
30226
47%
**98
91%
[ADI AR 2218]*
<<locked>>
94%
39595
62%
**90
90%
[ADI AR 2225]*
<<locked>>
81%
27514
43%
**59
93%
Accurate 3100
<<locked>>
81%
41075
64%
**08
99%
[Accurate MAGPRO]*
<<locked>>
81%
40248
63%
**71
94%
Alliant Reloder-16
<<locked>>
81%
52098
82%
**51
100%
Alliant Reloder-19
<<locked>>
81%
45208
71%
**30
98%
Alliant Reloder-22
<<locked>>
81%
41133
64%
**84
98%
Alliant Reloder-23
<<locked>>
81%
39813
62%
**31
100%
Alliant Reloder-25
<<locked>>
81%
34229
54%
**46
99%
Alliant Reloder-26
<<locked>>
81%
44657
70%
**85
100%
[Alliant Reloder-33]*
<<locked>>
89%
36927
58%
**31
90%
[Hodgdon H1000]*
<<locked>>
81%
30226
47%
**98
91%
Hodgdon H4350
<<locked>>
81%
48878
77%
**49
100%
[Hodgdon H4831]*
<<locked>>
81%
38218
60%
**66
94%
Hodgdon H4831 SC
<<locked>>
81%
42554
67%
**61
96%
Hodgdon Hybrid 100V
<<locked>>
81%
49008
77%
**26
100%
[Hodgdon Retumbo]*
<<locked>>
81%
27514
43%
**59
93%
Hodgdon TrailBoss
<<locked>>
81%
28616
45%
**63
100%
IMR 4350
<<locked>>
81%
51082
80%
**85
100%
IMR 4831
<<locked>>
81%
46673
73%
**10
100%
IMR 4955 Enduron
<<locked>>
81%
41974
66%
**18
96%
IMR 7828 SSC
<<locked>>
81%
41858
66%
**07
96%
[IMR 7977 Enduron]*
<<locked>>
89%
45643
72%
**44
90%
[IMR 8133 Enduron]*
<<locked>>
85%
28761
45%
**92
90%
Lovex S070
<<locked>>
81%
53156
83%
**12
100%
Lovex S071
<<locked>>
81%
35331
55%
**80
98%
Norma 204
<<locked>>
81%
51967
81%
**38
99%
[Norma 217]*
<<locked>>
81%
24961
39%
**90
90%
Norma MRP
<<locked>>
81%
43410
68%
**46
99%
Norma URP
<<locked>>
81%
52982
83%
**35
100%
Ramshot Hunter
<<locked>>
81%
51909
81%
**41
100%
Ramshot Magnum
<<locked>>
81%
38421
60%
**18
98%
ReloadSwiss RS 14
<<locked>>
81%
29341
46%
**06
100%
ReloadSwiss RS 70
<<locked>>
81%
53055
83%
**94
100%
ReloadSwiss RS 76
<<locked>>
81%
32692
51%
**46
96%
[ReloadSwiss RS 80]*
<<locked>>
83%
31618
50%
**93
90%
Rottweil R 904
<<locked>>
81%
46311
73%
**07
98%
Rottweil R 905
<<locked>>
81%
44744
70%
**23
98%
Somchem S361
<<locked>>
81%
47297
74%
**03
97%
Somchem S365
<<locked>>
81%
50343
79%
**85
100%
Somchem S385
<<locked>>
81%
45368
71%
**97
99%
Vihtavuori N150
<<locked>>
81%
52475
82%
**33
100%
Vihtavuori N165
<<locked>>
81%
38305
60%
**49
97%
[Vihtavuori N170]*
<<locked>>
91%
40306
63%
**98
90%
Vihtavuori N555
<<locked>>
81%
44469
70%
**13
100%
Vihtavuori N560
<<locked>>
81%
41191
65%
**90
96%
[Vihtavuori N565]*
<<locked>>
81%
35810
56%
**52
94%
[Vihtavuori N568]*
<<locked>>
83%
32677
51%
**10
90%
[Vihtavuori N570]*
<<locked>>
88%
37985
60%
**64
90%
Winchester StaBALL HD
<<locked>>
81%
37028
58%
**74
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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