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Load data for .338-378 Weath. Mag. + .338 | 200gr | Reichenberg HDB Universal

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

.338-378 Weath. Mag. + .338 | 200gr | Reichenberg HDB Universal

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.338 | 200gr | Reichenberg HDB Universal
Bullet Weight:
200gr | 13.0g
Bullet Diameter:
0.338" | 8.59mm
Bullet Length:
1.287" | 32.7mm
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:
0.503" | 12.8mm
Shank Seated Depth:
0.346" | 8.8mm
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_B10177_C472
Last updated:
2025-09-18
Recommended Twist Rate:
1:15 - 1:12

Load data for 118 loads in caliber .338-378 Weath. Mag. with .338 | 200gr | Reichenberg HDB Universal bullet and 59 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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  • 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>>
90%
57101
89%
**97
99%
ADI AR 2213
<<locked>>
93%
57000
89%
**30
99%
ADI AR 2217
<<locked>>
97%
48530
76%
**59
97%
ADI AR 2225
<<locked>>
97%
43758
69%
**23
99%
Accurate 3100
<<locked>>
92%
57087
89%
**28
100%
Accurate 4350
<<locked>>
84%
57290
90%
**45
100%
Accurate MAGPRO
<<locked>>
93%
57392
90%
**33
97%
Alliant Reloder-16
<<locked>>
86%
57116
89%
**97
100%
Alliant Reloder-19
<<locked>>
90%
56927
89%
**87
99%
Alliant Reloder-22 👍
<<locked>>
93%
57159
90%
**14
99%
Alliant Reloder-23
<<locked>>
94%
57261
90%
**74
100%
Alliant Reloder-25 👍
<<locked>>
97%
55274
87%
**04
100%
Alliant Reloder-26
<<locked>>
89%
57188
90%
**50
100%
[Alliant Reloder-33]*
<<locked>>
97%
45281
71%
**43
92%
Hodgdon H1000
<<locked>>
97%
48530
76%
**59
97%
Hodgdon H4350
<<locked>>
88%
57319
90%
**35
100%
Hodgdon H4831
<<locked>>
95%
57334
90%
**68
98%
Hodgdon H4831 SC
<<locked>>
91%
57334
90%
**68
98%
Hodgdon Hybrid 100V
<<locked>>
87%
56869
89%
**09
100%
Hodgdon LVR
<<locked>>
83%
57435
90%
**64
100%
Hodgdon Retumbo
<<locked>>
97%
43758
69%
**23
99%
Hodgdon TrailBoss
<<locked>>
97%
35723
56%
**29
100%
IMR 4350
<<locked>>
86%
57261
90%
**31
100%
IMR 4831
<<locked>>
89%
57101
89%
**35
100%
IMR 4955 Enduron
<<locked>>
92%
57276
90%
**35
98%
IMR 7828 SSC
<<locked>>
92%
57290
90%
**40
99%
[IMR 7977 Enduron]*
<<locked>>
97%
56478
89%
**72
92%
IMR 8133 Enduron
<<locked>>
97%
39668
62%
**15
95%
Lovex S065
<<locked>>
84%
57435
90%
**15
100%
Lovex S070
<<locked>>
85%
57159
90%
**31
100%
Lovex S071
<<locked>>
97%
55724
87%
**02
100%
Norma 204
<<locked>>
85%
57116
89%
**68
99%
Norma 217
<<locked>>
97%
39726
62%
**41
97%
Norma MRP 👍
<<locked>>
90%
57000
89%
**43
100%
Norma URP
<<locked>>
85%
57276
90%
**54
100%
Ramshot Hunter
<<locked>>
86%
57130
90%
**74
100%
Ramshot Magnum 👍
<<locked>>
93%
57334
90%
**94
100%
ReloadSwiss RS 14
<<locked>>
96%
36434
57%
**72
100%
ReloadSwiss RS 62
<<locked>>
84%
56927
89%
**61
100%
ReloadSwiss RS 70
<<locked>>
85%
57232
90%
**14
100%
ReloadSwiss RS 76
<<locked>>
97%
54708
86%
**73
100%
ReloadSwiss RS 80
<<locked>>
97%
50038
78%
**38
97%
Rottweil R 904
<<locked>>
89%
57232
90%
**48
99%
Rottweil R 905
<<locked>>
90%
57406
90%
**84
99%
Rottweil R 907
<<locked>>
83%
57232
90%
**22
100%
SNPE Vectan Tubal 7000
<<locked>>
84%
56971
89%
**66
100%
Shooters World Long Rifle
<<locked>>
84%
57435
90%
**15
100%
Somchem S361
<<locked>>
88%
57145
90%
**12
98%
Somchem S365
<<locked>>
87%
57261
90%
**48
100%
Somchem S385
<<locked>>
90%
56913
89%
**45
100%
Vihtavuori N150
<<locked>>
85%
57043
89%
**46
100%
Vihtavuori N165
<<locked>>
95%
57217
90%
**25
100%
Vihtavuori N555
<<locked>>
91%
57305
90%
**71
100%
Vihtavuori N560
<<locked>>
92%
57334
90%
**53
98%
Vihtavuori N565
<<locked>>
96%
57072
89%
**20
99%
Vihtavuori N568
<<locked>>
97%
50966
80%
**48
96%
[Vihtavuori N570]*
<<locked>>
97%
48762
76%
**41
93%
Winchester 6.5 StaBALL
<<locked>>
84%
57174
90%
**79
100%
Winchester StaBALL HD
<<locked>>
94%
57029
89%
**73
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2209
<<locked>>
81%
42772
67%
**18
97%
[ADI AR 2213]*
<<locked>>
81%
38247
60%
**36
93%
[ADI AR 2217]*
<<locked>>
85%
31981
50%
**62
90%
[ADI AR 2225]*
<<locked>>
82%
26963
42%
**44
90%
Accurate 3100
<<locked>>
81%
38580
60%
**84
98%
Accurate 4350
<<locked>>
81%
51416
81%
**56
100%
[Accurate MAGPRO]*
<<locked>>
81%
37608
59%
**26
91%
Alliant Reloder-16
<<locked>>
81%
49095
77%
**63
100%
Alliant Reloder-19
<<locked>>
81%
42743
67%
**15
97%
Alliant Reloder-22
<<locked>>
81%
38638
61%
**56
95%
Alliant Reloder-23
<<locked>>
81%
37246
58%
**13
100%
Alliant Reloder-25
<<locked>>
81%
32111
50%
**12
96%
Alliant Reloder-26
<<locked>>
81%
41350
65%
**64
100%
[Alliant Reloder-33]*
<<locked>>
94%
40321
63%
**35
90%
[Hodgdon H1000]*
<<locked>>
85%
31981
50%
**62
90%
Hodgdon H4350
<<locked>>
81%
46311
73%
**38
98%
[Hodgdon H4831]*
<<locked>>
81%
35911
56%
**41
92%
[Hodgdon H4831 SC]*
<<locked>>
81%
40118
63%
**33
94%
Hodgdon Hybrid 100V
<<locked>>
81%
46180
72%
**38
100%
Hodgdon LVR
<<locked>>
81%
53519
84%
**99
100%
[Hodgdon Retumbo]*
<<locked>>
82%
26963
42%
**44
90%
Hodgdon TrailBoss
<<locked>>
81%
28413
45%
**65
100%
IMR 4350
<<locked>>
81%
48631
76%
**87
99%
IMR 4831
<<locked>>
81%
44367
70%
**18
100%
[IMR 4955 Enduron]*
<<locked>>
81%
40016
63%
**07
94%
[IMR 7828 SSC]*
<<locked>>
81%
39204
61%
**79
94%
[IMR 7977 Enduron]*
<<locked>>
93%
50125
79%
**58
90%
[IMR 8133 Enduron]*
<<locked>>
90%
31227
49%
**92
90%
Lovex S065
<<locked>>
81%
52301
82%
**30
100%
Lovex S070
<<locked>>
81%
50662
79%
**17
100%
Lovex S071
<<locked>>
81%
33112
52%
**52
96%
Norma 204
<<locked>>
81%
49081
77%
**33
98%
[Norma 217]*
<<locked>>
86%
27238
43%
**84
90%
Norma MRP
<<locked>>
81%
40640
64%
**35
98%
Norma URP
<<locked>>
81%
50256
79%
**43
100%
Ramshot Hunter
<<locked>>
81%
49066
77%
**36
100%
Ramshot Magnum
<<locked>>
81%
35955
56%
**84
95%
ReloadSwiss RS 14
<<locked>>
81%
29095
46%
**11
100%
ReloadSwiss RS 62
<<locked>>
81%
51619
81%
**82
100%
ReloadSwiss RS 70
<<locked>>
81%
49806
78%
**99
100%
[ReloadSwiss RS 76]*
<<locked>>
81%
30487
48%
**92
93%
[ReloadSwiss RS 80]*
<<locked>>
87%
34403
54%
**90
90%
Rottweil R 904
<<locked>>
81%
44019
69%
**99
96%
Rottweil R 905
<<locked>>
81%
42206
66%
**08
97%
Rottweil R 907
<<locked>>
81%
53577
84%
**56
99%
SNPE Vectan Tubal 7000
<<locked>>
81%
51401
81%
**81
100%
Shooters World Long Rifle
<<locked>>
81%
52301
82%
**30
100%
Somchem S361
<<locked>>
81%
44889
70%
**89
95%
Somchem S365
<<locked>>
81%
47355
74%
**87
100%
Somchem S385
<<locked>>
81%
42801
67%
**89
98%
Vihtavuori N150
<<locked>>
81%
50009
78%
**48
100%
Vihtavuori N165
<<locked>>
81%
36114
57%
**28
95%
Vihtavuori N555
<<locked>>
81%
41524
65%
**92
100%
[Vihtavuori N560]*
<<locked>>
81%
38667
61%
**76
93%
[Vihtavuori N565]*
<<locked>>
81%
33388
52%
**18
91%
[Vihtavuori N568]*
<<locked>>
87%
35810
56%
**13
90%
[Vihtavuori N570]*
<<locked>>
93%
41698
65%
**77
90%
Winchester 6.5 StaBALL
<<locked>>
81%
51053
80%
**87
100%
Winchester StaBALL HD
<<locked>>
81%
33634
53%
**36
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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