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Load data for .338-378 Weath. Mag. + .338 | 200gr | Frontier PH HPFB

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

.338-378 Weath. Mag. + .338 | 200gr | Frontier PH HPFB

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.338 | 200gr | Frontier PH HPFB
Bullet Weight:
200gr | 13.0g
Bullet Diameter:
0.338" | 8.59mm
Bullet Length:
1.313" | 33.4mm
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:
0.529" | 13.4mm
Shank Seated Depth:
0.529" | 13.4mm
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_B10416_C472
Last updated:
2025-09-18

Load data for 120 loads in caliber .338-378 Weath. Mag. with .338 | 200gr | Frontier PH HPFB bullet and 60 powders such as ADI AR 2209, Alliant Reloder-22, Alliant Reloder-25, Norma MRP, Ramshot Magnum. 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%
57276
90%
**97
99%
ADI AR 2213
<<locked>>
93%
57058
89%
**23
99%
ADI AR 2217
<<locked>>
97%
47993
75%
**56
97%
ADI AR 2225
<<locked>>
97%
43149
68%
**07
99%
Accurate 3100
<<locked>>
93%
57000
89%
**18
100%
Accurate 4350
<<locked>>
84%
57290
90%
**45
100%
Accurate MAGPRO
<<locked>>
93%
57232
90%
**27
97%
Alliant Reloder-16
<<locked>>
86%
57276
90%
**97
100%
Alliant Reloder-19
<<locked>>
90%
57101
89%
**87
99%
Alliant Reloder-22 👍
<<locked>>
93%
57203
90%
**23
99%
Alliant Reloder-23
<<locked>>
94%
57334
90%
**77
100%
Alliant Reloder-25 👍
<<locked>>
97%
54534
85%
**00
100%
Alliant Reloder-26
<<locked>>
90%
57421
90%
**50
100%
[Alliant Reloder-33]*
<<locked>>
97%
44396
70%
**23
92%
Hodgdon H1000
<<locked>>
97%
47993
75%
**56
97%
Hodgdon H4350
<<locked>>
88%
57058
89%
**28
100%
Hodgdon H4831
<<locked>>
95%
57043
89%
**64
98%
Hodgdon H4831 SC
<<locked>>
92%
57406
90%
**74
98%
Hodgdon Hybrid 100V
<<locked>>
88%
57421
90%
**12
100%
Hodgdon LVR
<<locked>>
83%
57377
90%
**58
100%
Hodgdon Retumbo
<<locked>>
97%
43149
68%
**07
99%
Hodgdon TrailBoss
<<locked>>
97%
35795
56%
**29
100%
IMR 4350
<<locked>>
86%
57276
90%
**25
100%
IMR 4831
<<locked>>
89%
57029
89%
**25
100%
IMR 4955 Enduron
<<locked>>
93%
57174
90%
**38
98%
IMR 7828 SSC
<<locked>>
92%
57043
89%
**30
99%
[IMR 7977 Enduron]*
<<locked>>
97%
56115
88%
**59
92%
[IMR 8133 Enduron]*
<<locked>>
97%
38943
61%
**02
94%
Lovex S065
<<locked>>
84%
57406
90%
**09
100%
Lovex S070
<<locked>>
85%
57072
89%
**31
100%
Lovex S071
<<locked>>
97%
54766
86%
**86
100%
Norma 204
<<locked>>
86%
57290
90%
**68
99%
Norma 217
<<locked>>
97%
39088
61%
**31
97%
Norma MRP 👍
<<locked>>
91%
56898
89%
**36
100%
Norma URP
<<locked>>
85%
57014
89%
**54
100%
Ramshot Hunter
<<locked>>
86%
57421
90%
**77
100%
Ramshot Magnum 👍
<<locked>>
93%
57261
90%
**94
100%
ReloadSwiss RS 14
<<locked>>
97%
36521
57%
**69
100%
ReloadSwiss RS 62
<<locked>>
84%
57319
90%
**71
100%
ReloadSwiss RS 70
<<locked>>
85%
56898
89%
**17
100%
ReloadSwiss RS 76
<<locked>>
97%
54215
85%
**66
100%
ReloadSwiss RS 80
<<locked>>
97%
48965
77%
**18
96%
Rottweil R 904
<<locked>>
89%
57087
89%
**38
99%
Rottweil R 905
<<locked>>
90%
57246
90%
**87
99%
Rottweil R 907
<<locked>>
83%
56898
89%
**12
100%
SNPE Vectan Tubal 7000
<<locked>>
85%
57406
90%
**72
100%
Shooters World Long Rifle
<<locked>>
84%
57406
90%
**09
100%
Somchem S361
<<locked>>
88%
57246
90%
**05
98%
Somchem S365
<<locked>>
87%
57363
90%
**48
100%
Somchem S385
<<locked>>
90%
57377
90%
**45
100%
Vihtavuori N150
<<locked>>
86%
57435
90%
**59
100%
Vihtavuori N160
<<locked>>
83%
57072
89%
**18
100%
Vihtavuori N165
<<locked>>
95%
57174
90%
**31
100%
Vihtavuori N555
<<locked>>
91%
56869
89%
**64
100%
Vihtavuori N560
<<locked>>
93%
57392
90%
**50
98%
Vihtavuori N565
<<locked>>
97%
56956
89%
**14
99%
Vihtavuori N568
<<locked>>
97%
50169
79%
**35
96%
[Vihtavuori N570]*
<<locked>>
97%
47877
75%
**22
93%
Winchester 6.5 StaBALL
<<locked>>
84%
57058
89%
**69
100%
Winchester StaBALL HD
<<locked>>
95%
57029
89%
**66
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2209
<<locked>>
81%
42293
66%
**15
97%
[ADI AR 2213]*
<<locked>>
81%
37695
59%
**26
93%
[ADI AR 2217]*
<<locked>>
85%
32126
50%
**62
90%
[ADI AR 2225]*
<<locked>>
83%
27079
42%
**44
90%
Accurate 3100
<<locked>>
81%
38145
60%
**71
98%
Accurate 4350
<<locked>>
81%
50879
80%
**43
100%
[Accurate MAGPRO]*
<<locked>>
81%
37072
58%
**20
91%
Alliant Reloder-16
<<locked>>
81%
48530
76%
**49
100%
Alliant Reloder-19
<<locked>>
81%
42293
66%
**02
97%
Alliant Reloder-22
<<locked>>
81%
38029
60%
**43
95%
Alliant Reloder-23
<<locked>>
81%
36637
57%
**07
100%
Alliant Reloder-25
<<locked>>
81%
31821
50%
**08
96%
Alliant Reloder-26
<<locked>>
81%
40712
64%
**58
99%
[Alliant Reloder-33]*
<<locked>>
94%
40495
63%
**38
90%
[Hodgdon H1000]*
<<locked>>
85%
32126
50%
**62
90%
Hodgdon H4350
<<locked>>
81%
45948
72%
**28
98%
[Hodgdon H4831]*
<<locked>>
81%
35578
56%
**28
92%
[Hodgdon H4831 SC]*
<<locked>>
81%
39537
62%
**23
93%
Hodgdon Hybrid 100V
<<locked>>
81%
45745
72%
**25
100%
Hodgdon LVR
<<locked>>
81%
53127
83%
**89
100%
[Hodgdon Retumbo]*
<<locked>>
83%
27079
42%
**44
90%
Hodgdon TrailBoss
<<locked>>
81%
28413
45%
**62
100%
IMR 4350
<<locked>>
81%
48283
76%
**77
99%
IMR 4831
<<locked>>
81%
43642
68%
**02
100%
[IMR 4955 Enduron]*
<<locked>>
81%
39436
62%
**94
94%
[IMR 7828 SSC]*
<<locked>>
81%
38624
61%
**69
94%
[IMR 7977 Enduron]*
<<locked>>
94%
50488
79%
**67
90%
[IMR 8133 Enduron]*
<<locked>>
91%
31473
49%
**95
90%
Lovex S065
<<locked>>
81%
51938
81%
**17
100%
Lovex S070
<<locked>>
81%
50212
79%
**10
99%
Lovex S071
<<locked>>
81%
32735
51%
**36
96%
Norma 204
<<locked>>
81%
48762
76%
**27
98%
[Norma 217]*
<<locked>>
86%
27441
43%
**87
90%
Norma MRP
<<locked>>
81%
40016
63%
**12
97%
Norma URP
<<locked>>
81%
49530
78%
**30
100%
Ramshot Hunter
<<locked>>
81%
48631
76%
**23
100%
Ramshot Magnum
<<locked>>
81%
35476
56%
**64
95%
ReloadSwiss RS 14
<<locked>>
81%
29066
46%
**04
100%
ReloadSwiss RS 62
<<locked>>
81%
50937
80%
**63
100%
ReloadSwiss RS 70
<<locked>>
81%
49139
77%
**79
100%
[ReloadSwiss RS 76]*
<<locked>>
81%
30081
47%
**79
93%
[ReloadSwiss RS 80]*
<<locked>>
88%
35041
55%
**00
90%
Rottweil R 904
<<locked>>
81%
43395
68%
**85
96%
Rottweil R 905
<<locked>>
81%
41655
65%
**95
97%
Rottweil R 907
<<locked>>
81%
52968
83%
**53
99%
SNPE Vectan Tubal 7000
<<locked>>
81%
50763
80%
**71
100%
Shooters World Long Rifle
<<locked>>
81%
51938
81%
**17
100%
Somchem S361
<<locked>>
81%
44382
70%
**82
95%
Somchem S365
<<locked>>
81%
46920
74%
**90
100%
Somchem S385
<<locked>>
81%
42177
66%
**66
97%
Vihtavuori N150
<<locked>>
81%
49588
78%
**38
100%
Vihtavuori N160
<<locked>>
81%
53113
83%
**53
100%
Vihtavuori N165
<<locked>>
81%
35534
56%
**05
95%
Vihtavuori N555
<<locked>>
81%
41118
64%
**79
100%
[Vihtavuori N560]*
<<locked>>
81%
38072
60%
**53
93%
[Vihtavuori N565]*
<<locked>>
81%
32837
51%
**92
90%
[Vihtavuori N568]*
<<locked>>
88%
36042
56%
**17
90%
[Vihtavuori N570]*
<<locked>>
93%
42047
66%
**87
90%
Winchester 6.5 StaBALL
<<locked>>
81%
50488
79%
**84
100%
Winchester StaBALL HD
<<locked>>
81%
33185
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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