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Load data for .30-378 Weath. Mag. + .308 | 135gr | Sierra Varminter

Recommended Powder(s):

.30-378 Weath. Mag. + .308 | 135gr | Sierra Varminter

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.308 | 135gr | Sierra Varminter
Manufacturer SKU:
2124
Bullet Weight:
135gr | 8.7g
Bullet Diameter:
0.308" | 7.82mm
Bullet Length:
0.954" | 24.2mm
Caliber:
.30-378 Weath. Mag. load data
Case Length (l3):
2.913" | 74.0mm
Cartridge Length (C.O.L.):
3.600" | 91.4mm
Seated Depth:
0.267" | 6.8mm
Shank Seated Depth:
0.267" | 6.8mm
Case Capacity:
133.0 Grains of Water | 8.64 cm³
Primer Size:
Large Rifle Magnum (LRM)
Max. allowed Pressure:
63817 psi | 4400 bar
LID:
LID_B5868_C333
Last updated:
2025-01-01

Load data for 96 loads in caliber .30-378 Weath. Mag. with .308 | 135gr | Sierra Varminter bullet and 48 powder(s). 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>>
88%
57305
90%
**22
99%
ADI AR 2213
<<locked>>
90%
57058
89%
**42
98%
ADI AR 2217
<<locked>>
97%
52982
83%
**43
98%
ADI AR 2225
<<locked>>
97%
47993
75%
**97
99%
Accurate 3100
<<locked>>
90%
57043
89%
**37
100%
Accurate MAGPRO
<<locked>>
90%
56855
89%
**19
96%
Alliant Reloder-16
<<locked>>
84%
57406
90%
**19
100%
Alliant Reloder-19
<<locked>>
88%
57188
90%
**09
99%
Alliant Reloder-22 👍
<<locked>>
90%
56971
89%
**35
99%
Alliant Reloder-23
<<locked>>
91%
57406
90%
**86
100%
Alliant Reloder-25 👍
<<locked>>
95%
57232
90%
**45
100%
Alliant Reloder-26
<<locked>>
87%
57101
89%
**45
100%
[Alliant Reloder-33]*
<<locked>>
97%
50821
80%
**40
93%
Hodgdon H1000
<<locked>>
97%
52982
83%
**43
98%
Hodgdon H4350
<<locked>>
86%
57276
90%
**63
100%
Hodgdon H4831
<<locked>>
93%
57145
90%
**79
98%
Hodgdon H4831 SC
<<locked>>
89%
57145
90%
**79
98%
Hodgdon Hybrid 100V
<<locked>>
85%
57000
89%
**33
100%
Hodgdon Retumbo
<<locked>>
97%
47993
75%
**97
99%
Hodgdon TrailBoss
<<locked>>
97%
35781
56%
**15
100%
IMR 4350
<<locked>>
84%
57072
89%
**56
100%
IMR 4831
<<locked>>
87%
57232
90%
**50
100%
IMR 4955 Enduron
<<locked>>
90%
57000
89%
**60
98%
IMR 7828 SSC
<<locked>>
89%
57014
89%
**45
98%
[IMR 7977 Enduron]*
<<locked>>
95%
57014
89%
**91
91%
IMR 8133 Enduron
<<locked>>
97%
43671
68%
**66
95%
Lovex S071
<<locked>>
95%
56797
89%
**23
100%
Norma 204
<<locked>>
83%
57188
90%
**89
99%
Norma 217
<<locked>>
97%
44425
70%
**05
98%
Norma MRP
<<locked>>
88%
57421
90%
**51
100%
Ramshot Hunter
<<locked>>
83%
57087
89%
**92
100%
Ramshot Magnum 👍
<<locked>>
90%
57072
89%
**96
100%
ReloadSwiss RS 14
<<locked>>
96%
36506
57%
**64
100%
ReloadSwiss RS 76 👍
<<locked>>
95%
57101
89%
**07
100%
ReloadSwiss RS 80
<<locked>>
97%
56347
88%
**35
97%
Rottweil R 904
<<locked>>
87%
57217
90%
**73
98%
Rottweil R 905
<<locked>>
88%
57145
90%
**92
99%
Somchem S361
<<locked>>
86%
57217
90%
**17
98%
Somchem S365
<<locked>>
84%
57305
90%
**66
100%
Somchem S385
<<locked>>
88%
57334
90%
**60
100%
Vihtavuori N150
<<locked>>
83%
56956
89%
**81
100%
Vihtavuori N165
<<locked>>
93%
57246
90%
**50
99%
Vihtavuori N555
<<locked>>
88%
57363
90%
**92
100%
Vihtavuori N560
<<locked>>
90%
57276
90%
**61
98%
Vihtavuori N565
<<locked>>
94%
57377
90%
**12
98%
Vihtavuori N568
<<locked>>
97%
56521
89%
**45
97%
[Vihtavuori N570]*
<<locked>>
97%
54317
85%
**32
94%
Winchester StaBALL HD 👍
<<locked>>
92%
57406
90%
**81
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2209
<<locked>>
81%
45658
72%
**76
97%
[ADI AR 2213]*
<<locked>>
81%
41017
64%
**94
94%
[ADI AR 2217]*
<<locked>>
84%
34418
54%
**84
90%
[ADI AR 2225]*
<<locked>>
83%
29399
46%
**56
90%
Accurate 3100
<<locked>>
81%
41568
65%
**25
98%
[Accurate MAGPRO]*
<<locked>>
81%
40727
64%
**77
91%
Alliant Reloder-16
<<locked>>
81%
52402
82%
**37
100%
Alliant Reloder-19
<<locked>>
81%
45658
72%
**73
97%
Alliant Reloder-22
<<locked>>
81%
41669
65%
**94
95%
Alliant Reloder-23
<<locked>>
81%
40103
63%
**61
100%
Alliant Reloder-25
<<locked>>
81%
34650
54%
**43
96%
Alliant Reloder-26
<<locked>>
81%
45585
71%
**22
100%
[Alliant Reloder-33]*
<<locked>>
93%
43004
67%
**53
90%
[Hodgdon H1000]*
<<locked>>
84%
34418
54%
**84
90%
Hodgdon H4350
<<locked>>
81%
49095
77%
**02
98%
[Hodgdon H4831]*
<<locked>>
81%
38450
60%
**66
92%
[Hodgdon H4831 SC]*
<<locked>>
81%
42946
67%
**87
94%
Hodgdon Hybrid 100V
<<locked>>
81%
49327
77%
**89
100%
[Hodgdon Retumbo]*
<<locked>>
83%
29399
46%
**56
90%
Hodgdon TrailBoss
<<locked>>
81%
28529
45%
**34
100%
IMR 4350
<<locked>>
81%
51561
81%
**51
99%
IMR 4831
<<locked>>
81%
47036
74%
**69
100%
[IMR 4955 Enduron]*
<<locked>>
81%
42206
66%
**48
94%
[IMR 7828 SSC]*
<<locked>>
81%
42177
66%
**23
94%
[IMR 7977 Enduron]*
<<locked>>
93%
52721
83%
**15
90%
[IMR 8133 Enduron]*
<<locked>>
90%
34258
54%
**13
90%
Lovex S071
<<locked>>
81%
35723
56%
**77
96%
Norma 204
<<locked>>
81%
52315
82%
**01
98%
[Norma 217]*
<<locked>>
86%
30124
47%
**02
90%
Norma MRP
<<locked>>
81%
44063
69%
**76
98%
Ramshot Hunter
<<locked>>
81%
52402
82%
**14
100%
Ramshot Magnum
<<locked>>
81%
39131
61%
**15
96%
ReloadSwiss RS 14
<<locked>>
81%
29211
46%
**87
100%
[ReloadSwiss RS 76]*
<<locked>>
81%
33243
52%
**10
93%
[ReloadSwiss RS 80]*
<<locked>>
87%
37333
58%
**09
90%
Rottweil R 904
<<locked>>
81%
46789
73%
**56
96%
Rottweil R 905
<<locked>>
81%
45237
71%
**53
97%
Somchem S361
<<locked>>
81%
48037
75%
**50
96%
Somchem S365
<<locked>>
81%
50923
80%
**55
100%
Somchem S385
<<locked>>
81%
45774
72%
**33
98%
Vihtavuori N150
<<locked>>
81%
52620
82%
**05
100%
Vihtavuori N165
<<locked>>
81%
38740
61%
**49
95%
Vihtavuori N555
<<locked>>
81%
44730
70%
**56
100%
[Vihtavuori N560]*
<<locked>>
81%
41742
65%
**17
93%
[Vihtavuori N565]*
<<locked>>
81%
36230
57%
**33
91%
[Vihtavuori N568]*
<<locked>>
87%
38986
61%
**48
90%
[Vihtavuori N570]*
<<locked>>
92%
44686
70%
**09
90%
Winchester StaBALL HD
<<locked>>
81%
37478
59%
**77
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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