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Load data for .338-378 Weath. Mag. + .338 | 220gr | Peregrine VRG-3

Recommended Powder(s): ADI AR 2213, Alliant Reloder-25, Bofors RP15, IMR 7828 SSC, ReloadSwiss RS 76

.338-378 Weath. Mag. + .338 | 220gr | Peregrine VRG-3

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.338 | 220gr | Peregrine VRG-3
Bullet Weight:
220gr | 14.3g
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_B8159_C472
Last updated:
2026-04-24
Recommended Twist Rate:
1:15 - 1:12

Load data for 122 loads in caliber .338-378 Weath. Mag. with .338 | 220gr | Peregrine VRG-3 bullet and 61 powders such as ADI AR 2213, Alliant Reloder-25, Bofors RP15, IMR 7828 SSC, ReloadSwiss RS 76. 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%
57145
90%
**76
100%
ADI AR 2213 👍
<<locked>>
91%
56971
89%
**15
99%
ADI AR 2217
<<locked>>
97%
50778
80%
**07
99%
[ADI AR 2218]*
<<locked>>
97%
43642
68%
**28
92%
ADI AR 2225
<<locked>>
97%
45876
72%
**61
100%
Accurate 3100
<<locked>>
91%
57348
90%
**13
100%
Accurate MAGPRO
<<locked>>
91%
57014
89%
**18
98%
Alliant Reloder-16
<<locked>>
84%
57116
90%
**72
100%
Alliant Reloder-19
<<locked>>
89%
57435
90%
**69
100%
Alliant Reloder-22
<<locked>>
91%
57145
90%
**99
100%
Alliant Reloder-23
<<locked>>
93%
57334
90%
**53
100%
Alliant Reloder-25 👍
<<locked>>
96%
57087
89%
**15
100%
Alliant Reloder-26
<<locked>>
88%
56855
89%
**18
100%
Alliant Reloder-33
<<locked>>
97%
47500
74%
**94
95%
Baschieri & Pellagri 109
<<locked>>
93%
56956
89%
**53
97%
Bofors RP15 👍
<<locked>>
94%
57058
89%
**05
100%
Bofors RP30
<<locked>>
97%
53606
84%
**76
99%
Bofors RP5
<<locked>>
91%
57145
90%
**99
100%
Hodgdon H1000
<<locked>>
97%
50778
80%
**07
99%
Hodgdon H4350
<<locked>>
84%
56971
89%
**36
100%
Hodgdon H4831
<<locked>>
94%
57421
90%
**66
99%
Hodgdon H4831 SC
<<locked>>
90%
57305
90%
**56
99%
Hodgdon Hybrid 100V
<<locked>>
86%
57276
90%
**87
100%
Hodgdon Retumbo
<<locked>>
97%
57029
89%
**04
100%
Hodgdon TrailBoss
<<locked>>
97%
35839
56%
**47
100%
IMR 4350
<<locked>>
85%
57029
89%
**13
100%
IMR 4831
<<locked>>
88%
57130
90%
**17
100%
IMR 4955 Enduron
<<locked>>
91%
56840
89%
**20
99%
IMR 7828 SSC 👍
<<locked>>
90%
57377
90%
**28
99%
[IMR 7977 Enduron]*
<<locked>>
96%
57145
90%
**84
94%
IMR 8133 Enduron
<<locked>>
97%
41423
65%
**53
97%
Lovex S070
<<locked>>
84%
56956
89%
**13
100%
Lovex S071
<<locked>>
97%
56971
89%
**13
100%
Norma 204
<<locked>>
84%
57014
89%
**53
100%
Norma 217
<<locked>>
97%
41669
65%
**79
99%
Norma MRP
<<locked>>
89%
57101
89%
**25
100%
Norma URP
<<locked>>
84%
57392
90%
**40
100%
Ramshot Grand
<<locked>>
88%
57217
90%
**22
100%
Ramshot Hunter
<<locked>>
84%
57188
90%
**59
100%
Ramshot Magnum
<<locked>>
92%
57145
90%
**79
100%
ReloadSwiss RS 14
<<locked>>
97%
36564
57%
**86
100%
ReloadSwiss RS 70
<<locked>>
83%
57188
90%
**89
100%
ReloadSwiss RS 76 👍
<<locked>>
96%
56956
89%
**81
100%
ReloadSwiss RS 80
<<locked>>
97%
52663
83%
**79
98%
Rottweil R 904
<<locked>>
88%
57392
90%
**36
99%
Rottweil R 905
<<locked>>
89%
57072
89%
**72
100%
SNPE Vectan Tubal 7000
<<locked>>
83%
57159
90%
**54
100%
Somchem S361
<<locked>>
87%
57377
90%
**07
99%
Somchem S365
<<locked>>
85%
57319
90%
**20
100%
Somchem S385
<<locked>>
89%
57116
90%
**27
100%
Vihtavuori N165
<<locked>>
93%
57246
90%
**20
100%
Vihtavuori N170
<<locked>>
97%
56391
88%
**23
95%
Vihtavuori N550
<<locked>>
83%
57043
89%
**13
100%
Vihtavuori N555
<<locked>>
89%
57232
90%
**46
100%
Vihtavuori N560
<<locked>>
89%
57348
90%
**31
99%
Vihtavuori N565
<<locked>>
95%
57246
90%
**09
99%
Vihtavuori N568
<<locked>>
97%
53490
84%
**86
98%
Vihtavuori N570
<<locked>>
97%
50749
80%
**79
95%
Winchester 6.5 StaBALL
<<locked>>
83%
57305
90%
**58
100%
Winchester StaBALL HD
<<locked>>
93%
57319
90%
**38
100%
Winchester Supreme 780
<<locked>>
88%
57159
90%
**30
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2209
<<locked>>
81%
44614
70%
**53
98%
ADI AR 2213
<<locked>>
81%
39581
62%
**80
95%
[ADI AR 2217]*
<<locked>>
81%
29559
46%
**98
90%
[ADI AR 2218]*
<<locked>>
94%
39784
62%
**30
90%
[ADI AR 2225]*
<<locked>>
81%
26513
42%
**46
92%
Accurate 3100
<<locked>>
81%
39871
62%
**12
99%
[Accurate MAGPRO]*
<<locked>>
81%
39160
61%
**64
93%
Alliant Reloder-16
<<locked>>
81%
51155
80%
**81
100%
Alliant Reloder-19
<<locked>>
81%
44440
70%
**46
98%
Alliant Reloder-22
<<locked>>
81%
39972
63%
**90
97%
Alliant Reloder-23
<<locked>>
81%
38783
61%
**44
100%
Alliant Reloder-25
<<locked>>
81%
33344
52%
**59
98%
Alliant Reloder-26
<<locked>>
81%
43410
68%
**92
100%
[Alliant Reloder-33]*
<<locked>>
91%
37521
59%
**74
90%
[Baschieri & Pellagri 109]*
<<locked>>
81%
39189
61%
**98
92%
Bofors RP15
<<locked>>
81%
37115
58%
**21
96%
[Bofors RP30]*
<<locked>>
81%
30618
48%
**64
92%
Bofors RP5
<<locked>>
81%
39972
63%
**90
97%
[Hodgdon H1000]*
<<locked>>
81%
29559
46%
**98
90%
Hodgdon H4350
<<locked>>
81%
52779
83%
**67
100%
[Hodgdon H4831]*
<<locked>>
81%
37260
58%
**79
94%
Hodgdon H4831 SC
<<locked>>
81%
41481
65%
**71
95%
Hodgdon Hybrid 100V
<<locked>>
81%
48008
75%
**53
100%
[Hodgdon Retumbo]*
<<locked>>
81%
32503
51%
**75
94%
Hodgdon TrailBoss
<<locked>>
81%
28427
45%
**86
100%
IMR 4350
<<locked>>
81%
50502
79%
**12
100%
IMR 4831
<<locked>>
81%
45730
72%
**36
100%
IMR 4955 Enduron
<<locked>>
81%
41191
65%
**31
96%
IMR 7828 SSC
<<locked>>
81%
40727
64%
**13
96%
[IMR 7977 Enduron]*
<<locked>>
90%
46224
72%
**87
90%
[IMR 8133 Enduron]*
<<locked>>
87%
29153
46%
**38
90%
Lovex S070
<<locked>>
81%
52243
82%
**41
100%
Lovex S071
<<locked>>
81%
34171
54%
**87
98%
Norma 204
<<locked>>
81%
51198
80%
**58
99%
[Norma 217]*
<<locked>>
83%
25730
40%
**43
90%
Norma MRP
<<locked>>
81%
42351
66%
**59
99%
Norma URP
<<locked>>
81%
51837
81%
**58
100%
Ramshot Grand
<<locked>>
81%
42975
67%
**79
97%
Ramshot Hunter
<<locked>>
81%
51053
80%
**61
100%
Ramshot Magnum
<<locked>>
81%
37507
59%
**25
97%
ReloadSwiss RS 14
<<locked>>
81%
29138
46%
**29
100%
ReloadSwiss RS 70
<<locked>>
81%
52127
82%
**20
100%
ReloadSwiss RS 76
<<locked>>
81%
31618
50%
**39
95%
[ReloadSwiss RS 80]*
<<locked>>
84%
32155
50%
**26
90%
Rottweil R 904
<<locked>>
81%
45484
71%
**33
97%
Rottweil R 905
<<locked>>
81%
43700
68%
**30
98%
SNPE Vectan Tubal 7000
<<locked>>
81%
52808
83%
**92
100%
Somchem S361
<<locked>>
81%
46369
73%
**17
97%
Somchem S365
<<locked>>
81%
49385
77%
**05
100%
Somchem S385
<<locked>>
81%
44121
69%
**07
99%
Vihtavuori N165
<<locked>>
81%
38479
60%
**79
97%
[Vihtavuori N170]*
<<locked>>
88%
40785
64%
**35
90%
Vihtavuori N550
<<locked>>
81%
52736
83%
**51
100%
Vihtavuori N555
<<locked>>
81%
43105
68%
**13
100%
Vihtavuori N560
<<locked>>
81%
42293
66%
**53
96%
[Vihtavuori N565]*
<<locked>>
81%
34548
54%
**46
93%
[Vihtavuori N568]*
<<locked>>
84%
33025
52%
**49
90%
[Vihtavuori N570]*
<<locked>>
89%
38319
60%
**07
90%
Winchester 6.5 StaBALL
<<locked>>
81%
53011
83%
**99
100%
Winchester StaBALL HD
<<locked>>
81%
35897
56%
**77
100%
Winchester Supreme 780
<<locked>>
81%
44440
70%
**10
98%

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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