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Load data for .338-378 Weath. Mag. + .338 | 206gr | Peregrine VLR-5

Recommended Powder(s): Alliant Reloder-22, Bofors RP5, Norma MRP, Ramshot Grand, Ramshot Magnum

.338-378 Weath. Mag. + .338 | 206gr | Peregrine VLR-5

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.338 | 206gr | Peregrine VLR-5
Bullet Weight:
206gr | 13.3g
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_B8155_C472
Last updated:
2026-04-26
Recommended Twist Rate:
1:13 - 1:11

Load data for 138 loads in caliber .338-378 Weath. Mag. with .338 | 206gr | Peregrine VLR-5 bullet and 69 powders such as Alliant Reloder-22, Bofors RP5, Norma MRP, Ramshot Grand, 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%
57188
90%
**54
99%
ADI AR 2213
<<locked>>
93%
57217
90%
**94
99%
ADI AR 2217
<<locked>>
97%
47123
74%
**10
97%
ADI AR 2225
<<locked>>
97%
41814
66%
**44
99%
Accurate 3100
<<locked>>
93%
57101
89%
**92
100%
Accurate 4350
<<locked>>
85%
57145
90%
**18
100%
Accurate MAGPRO
<<locked>>
94%
57188
90%
**04
98%
Alliant Reloder-16
<<locked>>
86%
57130
90%
**51
100%
Alliant Reloder-19
<<locked>>
91%
57348
90%
**61
100%
Alliant Reloder-22 👍
<<locked>>
93%
57087
89%
**87
100%
Alliant Reloder-23
<<locked>>
95%
56913
89%
**28
100%
Alliant Reloder-25
<<locked>>
97%
53272
83%
**41
100%
Alliant Reloder-26
<<locked>>
90%
57174
90%
**20
100%
Baschieri & Pellagri 109
<<locked>>
95%
57363
90%
**31
97%
Bofors RP15
<<locked>>
96%
57000
89%
**81
99%
Bofors RP30
<<locked>>
97%
49182
77%
**72
98%
Bofors RP5 👍
<<locked>>
93%
57087
89%
**87
100%
Bofors RP7
<<locked>>
84%
57348
90%
**92
100%
Hodgdon H1000
<<locked>>
97%
47123
74%
**10
97%
Hodgdon H4350
<<locked>>
85%
57058
89%
**12
100%
Hodgdon H4831
<<locked>>
96%
57276
90%
**35
98%
Hodgdon H4831 SC
<<locked>>
92%
56927
89%
**35
98%
Hodgdon Hybrid 100V
<<locked>>
88%
57319
90%
**69
100%
Hodgdon LVR
<<locked>>
84%
56985
89%
**15
100%
Hodgdon Retumbo
<<locked>>
97%
51967
81%
**04
100%
Hodgdon Superperformance
<<locked>>
84%
57246
90%
**71
100%
Hodgdon TrailBoss
<<locked>>
97%
35433
56%
**90
100%
IMR 4350
<<locked>>
87%
57072
89%
**92
100%
IMR 4451 Enduron
<<locked>>
83%
57363
90%
**95
100%
IMR 4831
<<locked>>
90%
57232
90%
**99
100%
IMR 4955 Enduron
<<locked>>
93%
57421
90%
**05
98%
IMR 7828 SSC
<<locked>>
92%
57246
90%
**00
99%
[IMR 7977 Enduron]*
<<locked>>
97%
55332
87%
**20
92%
[IMR 8133 Enduron]*
<<locked>>
97%
37637
59%
**40
94%
Lovex S065
<<locked>>
85%
57435
90%
**72
100%
Lovex S070
<<locked>>
86%
57217
90%
**92
100%
Lovex S071
<<locked>>
97%
53316
84%
**40
100%
Norma 204
<<locked>>
86%
56927
89%
**31
99%
Norma 217
<<locked>>
97%
38014
60%
**76
97%
Norma MRP 👍
<<locked>>
91%
57174
90%
**00
100%
Norma URP
<<locked>>
86%
56869
89%
**12
100%
Ramshot Grand 👍
<<locked>>
90%
57246
90%
**07
99%
Ramshot Hunter
<<locked>>
86%
57072
89%
**38
100%
Ramshot Magnum 👍
<<locked>>
94%
57087
89%
**64
100%
ReloadSwiss RS 14
<<locked>>
97%
36332
57%
**32
100%
ReloadSwiss RS 62
<<locked>>
85%
57261
90%
**38
100%
ReloadSwiss RS 70
<<locked>>
86%
57334
90%
**91
100%
ReloadSwiss RS 76
<<locked>>
97%
53142
83%
**17
100%
ReloadSwiss RS 80
<<locked>>
97%
47950
75%
**69
96%
Rottweil R 904
<<locked>>
90%
57290
90%
**15
99%
Rottweil R 905
<<locked>>
91%
57145
90%
**48
100%
Rottweil R 907
<<locked>>
84%
57348
90%
**92
100%
SNPE Vectan Tubal 7000
<<locked>>
85%
57276
90%
**43
100%
Shooters World Long Rifle
<<locked>>
85%
57435
90%
**72
100%
Somchem S361
<<locked>>
89%
57043
89%
**76
98%
Somchem S365
<<locked>>
87%
56927
89%
**09
100%
Somchem S385
<<locked>>
91%
57290
90%
**09
100%
Vihtavuori N160
<<locked>>
85%
57421
90%
**86
100%
Vihtavuori N165
<<locked>>
95%
57319
90%
**02
100%
[Vihtavuori N170]*
<<locked>>
97%
52431
82%
**27
93%
Vihtavuori N550
<<locked>>
85%
57072
89%
**99
100%
Vihtavuori N555
<<locked>>
92%
57072
89%
**31
100%
Vihtavuori N560
<<locked>>
92%
57319
90%
**10
99%
Vihtavuori N565
<<locked>>
97%
56086
88%
**71
99%
Vihtavuori N568
<<locked>>
97%
48936
77%
**79
96%
[Vihtavuori N570]*
<<locked>>
97%
46311
73%
**59
93%
Winchester 6.5 StaBALL
<<locked>>
85%
57305
90%
**40
100%
Winchester StaBALL HD
<<locked>>
96%
57392
90%
**43
100%
Winchester Supreme 780
<<locked>>
90%
57101
89%
**12
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2209
<<locked>>
81%
41423
65%
**62
96%
[ADI AR 2213]*
<<locked>>
81%
36970
58%
**80
93%
[ADI AR 2217]*
<<locked>>
85%
31647
50%
**23
90%
[ADI AR 2225]*
<<locked>>
83%
26687
42%
**08
90%
Accurate 3100
<<locked>>
81%
36825
58%
**25
98%
Accurate 4350
<<locked>>
81%
49545
78%
**94
100%
[Accurate MAGPRO]*
<<locked>>
81%
35998
56%
**57
90%
Alliant Reloder-16
<<locked>>
81%
47732
75%
**04
100%
Alliant Reloder-19
<<locked>>
81%
41350
65%
**56
97%
Alliant Reloder-22
<<locked>>
81%
37101
58%
**90
95%
Alliant Reloder-23
<<locked>>
81%
35592
56%
**54
100%
Alliant Reloder-25
<<locked>>
81%
30835
48%
**52
96%
Alliant Reloder-26
<<locked>>
81%
39653
62%
**99
99%
[Baschieri & Pellagri 109]*
<<locked>>
82%
38624
61%
**48
90%
[Bofors RP15]*
<<locked>>
81%
34389
54%
**18
94%
[Bofors RP30]*
<<locked>>
83%
30008
47%
**23
90%
Bofors RP5
<<locked>>
81%
37101
58%
**90
95%
Bofors RP7
<<locked>>
81%
52054
82%
**00
99%
[Hodgdon H1000]*
<<locked>>
85%
31647
50%
**23
90%
Hodgdon H4350
<<locked>>
81%
49472
78%
**90
99%
[Hodgdon H4831]*
<<locked>>
81%
34737
54%
**75
91%
[Hodgdon H4831 SC]*
<<locked>>
81%
38798
61%
**77
93%
Hodgdon Hybrid 100V
<<locked>>
81%
44846
70%
**76
100%
Hodgdon LVR
<<locked>>
81%
52011
82%
**33
100%
[Hodgdon Retumbo]*
<<locked>>
81%
30153
47%
**62
91%
Hodgdon Superperformance
<<locked>>
81%
51793
81%
**82
100%
Hodgdon TrailBoss
<<locked>>
81%
28282
44%
**36
100%
IMR 4350
<<locked>>
81%
47384
74%
**25
99%
IMR 4451 Enduron
<<locked>>
81%
53606
84%
**23
100%
IMR 4831
<<locked>>
81%
42714
67%
**53
100%
[IMR 4955 Enduron]*
<<locked>>
81%
38682
61%
**48
94%
[IMR 7828 SSC]*
<<locked>>
81%
37927
59%
**23
94%
[IMR 7977 Enduron]*
<<locked>>
94%
49545
78%
**18
90%
[IMR 8133 Enduron]*
<<locked>>
91%
31067
49%
**56
90%
Lovex S065
<<locked>>
81%
50807
80%
**74
100%
Lovex S070
<<locked>>
81%
49298
77%
**64
99%
Lovex S071
<<locked>>
81%
31546
49%
**90
96%
Norma 204
<<locked>>
81%
47877
75%
**77
98%
[Norma 217]*
<<locked>>
87%
26861
42%
**48
90%
Norma MRP
<<locked>>
81%
38943
61%
**62
97%
Norma URP
<<locked>>
81%
48631
76%
**84
100%
Ramshot Grand
<<locked>>
81%
39523
62%
**76
95%
Ramshot Hunter
<<locked>>
81%
47659
75%
**84
100%
Ramshot Magnum
<<locked>>
81%
34258
54%
**18
95%
ReloadSwiss RS 14
<<locked>>
81%
28790
45%
**68
100%
ReloadSwiss RS 62
<<locked>>
81%
49937
78%
**13
100%
ReloadSwiss RS 70
<<locked>>
81%
48312
76%
**33
100%
[ReloadSwiss RS 76]*
<<locked>>
81%
29080
46%
**23
92%
[ReloadSwiss RS 80]*
<<locked>>
88%
34272
54%
**54
90%
Rottweil R 904
<<locked>>
81%
42772
67%
**43
96%
Rottweil R 905
<<locked>>
81%
40741
64%
**46
97%
Rottweil R 907
<<locked>>
81%
52054
82%
**00
99%
SNPE Vectan Tubal 7000
<<locked>>
81%
49980
78%
**18
99%
Shooters World Long Rifle
<<locked>>
81%
50807
80%
**74
100%
Somchem S361
<<locked>>
81%
43453
68%
**33
95%
Somchem S365
<<locked>>
81%
45716
72%
**31
100%
Somchem S385
<<locked>>
81%
41205
65%
**26
98%
Vihtavuori N160
<<locked>>
81%
50154
79%
**81
100%
Vihtavuori N165
<<locked>>
81%
35621
56%
**82
95%
[Vihtavuori N170]*
<<locked>>
92%
43598
68%
**59
90%
Vihtavuori N550
<<locked>>
81%
49371
77%
**71
100%
Vihtavuori N555
<<locked>>
81%
39943
63%
**33
100%
[Vihtavuori N560]*
<<locked>>
81%
39059
61%
**53
94%
[Vihtavuori N565]*
<<locked>>
81%
31821
50%
**46
90%
[Vihtavuori N568]*
<<locked>>
88%
35302
55%
**71
90%
[Vihtavuori N570]*
<<locked>>
93%
40886
64%
**38
90%
Winchester 6.5 StaBALL
<<locked>>
81%
49617
78%
**38
100%
Winchester StaBALL HD
<<locked>>
81%
31952
50%
**64
100%
Winchester Supreme 780
<<locked>>
81%
41350
65%
**23
97%

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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