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Load data for .30-378 Weath. Mag. + .308 | 115gr | Sierra Varmint

Recommended Powder(s): Alliant Reloder-23, Alliant Reloder-26, Norma MRP, Vihtavuori N555, Winchester StaBALL HD

.30-378 Weath. Mag. + .308 | 115gr | Sierra Varmint

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.308 | 115gr | Sierra Varmint
Manufacturer SKU:
2116
Bullet Weight:
115gr | 7.5g
Bullet Diameter:
0.308" | 7.82mm
Bullet Length:
<<locked>>
Caliber:
.30-378 Weath. Mag. load data
Case Length (l3):
2.913" | 74.0mm
Cartridge Length (C.O.L.):
<<locked>>
Seated Depth:
<<locked>>
Shank Seated Depth:
<<locked>>
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_B10948_C333
Last updated:
2025-08-16

Load data for 0 loads in caliber .30-378 Weath. Mag. with .308 | 115gr | Sierra Varmint bullet and 0 powders such as Alliant Reloder-23, Alliant Reloder-26, Norma MRP, Vihtavuori N555, Winchester StaBALL HD. 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>>
91%
57130
90%
**12
98%
ADI AR 2213
<<locked>>
94%
57072
89%
**25
97%
[ADI AR 2217]*
<<locked>>
97%
46746
73%
**86
94%
ADI AR 2225
<<locked>>
97%
41974
66%
**07
96%
Accurate 3100
<<locked>>
94%
57087
89%
**33
100%
Accurate 4350
<<locked>>
86%
57421
90%
**83
100%
Accurate MAGPRO
<<locked>>
94%
57116
90%
**12
95%
Alliant Reloder-16
<<locked>>
87%
57101
89%
**32
100%
Alliant Reloder-19
<<locked>>
91%
57305
90%
**89
98%
Alliant Reloder-22
<<locked>>
94%
57203
90%
**29
98%
Alliant Reloder-23 👍
<<locked>>
95%
56942
89%
**89
100%
Alliant Reloder-25
<<locked>>
97%
52794
83%
**66
100%
Alliant Reloder-26 👍
<<locked>>
91%
57101
89%
**61
100%
[Baschieri & Pellagri 109]*
<<locked>>
95%
57203
90%
**47
94%
Bofors RP15
<<locked>>
96%
57101
89%
**22
98%
Bofors RP30
<<locked>>
97%
49081
77%
**68
95%
Bofors RP5
<<locked>>
94%
57203
90%
**29
98%
Bofors RP7
<<locked>>
84%
57348
90%
**43
99%
[Hodgdon H1000]*
<<locked>>
97%
46746
73%
**86
94%
Hodgdon H4350
<<locked>>
89%
57406
90%
**56
99%
Hodgdon H4831
<<locked>>
96%
57058
89%
**60
96%
Hodgdon H4831 SC
<<locked>>
92%
57058
89%
**60
96%
Hodgdon Hybrid 100V
<<locked>>
89%
57392
90%
**47
100%
Hodgdon LVR
<<locked>>
84%
57087
89%
**89
100%
Hodgdon Retumbo
<<locked>>
97%
41974
66%
**07
96%
Hodgdon Superperformance
<<locked>>
84%
57058
89%
**12
99%
Hodgdon TrailBoss
<<locked>>
97%
35288
55%
**65
100%
IMR 4350
<<locked>>
87%
57203
90%
**47
99%
IMR 4451 Enduron
<<locked>>
84%
57319
90%
**43
99%
IMR 4831
<<locked>>
90%
57043
89%
**50
100%
IMR 4955 Enduron
<<locked>>
93%
56942
89%
**30
96%
IMR 7828 SSC
<<locked>>
93%
56884
89%
**38
97%
Lovex S065
<<locked>>
85%
56956
89%
**30
100%
Lovex S070
<<locked>>
86%
57087
89%
**43
99%
Lovex S071
<<locked>>
97%
53026
83%
**61
99%
Norma 204
<<locked>>
87%
57276
90%
**89
98%
[Norma 217]*
<<locked>>
97%
37855
59%
**12
93%
Norma MRP 👍
<<locked>>
92%
57087
89%
**55
99%
Norma URP
<<locked>>
86%
57145
90%
**93
100%
Ramshot Grand
<<locked>>
91%
57406
90%
**52
97%
Ramshot Hunter
<<locked>>
87%
57348
90%
**02
100%
Ramshot Magnum
<<locked>>
94%
57188
90%
**83
99%
ReloadSwiss RS 14
<<locked>>
96%
35911
56%
**18
100%
ReloadSwiss RS 62
<<locked>>
85%
57217
90%
**86
100%
ReloadSwiss RS 70
<<locked>>
86%
57188
90%
**38
100%
ReloadSwiss RS 76
<<locked>>
97%
53055
83%
**22
99%
[ReloadSwiss RS 80]*
<<locked>>
97%
47848
75%
**42
93%
Rottweil R 904
<<locked>>
90%
57363
90%
**63
97%
Rottweil R 905
<<locked>>
91%
57159
90%
**86
98%
Rottweil R 907
<<locked>>
84%
57348
90%
**43
99%
SNPE Vectan Tubal 7000
<<locked>>
85%
57188
90%
**94
99%
Shooters World Long Rifle
<<locked>>
85%
56956
89%
**30
100%
Somchem S361
<<locked>>
89%
57319
90%
**94
96%
Somchem S365
<<locked>>
88%
57014
89%
**70
100%
Somchem S385
<<locked>>
91%
57363
90%
**60
99%
Vihtavuori N135
<<locked>>
83%
56913
89%
**51
100%
Vihtavuori N150
<<locked>>
87%
57014
89%
**81
100%
Vihtavuori N160
<<locked>>
84%
57435
90%
**43
100%
Vihtavuori N165
<<locked>>
96%
57246
90%
**37
99%
Vihtavuori N550
<<locked>>
84%
56884
89%
**83
100%
Vihtavuori N555 👍
<<locked>>
92%
57392
90%
**89
100%
Vihtavuori N560
<<locked>>
94%
57334
90%
**42
96%
Vihtavuori N565
<<locked>>
97%
55840
88%
**70
96%
[Vihtavuori N568]*
<<locked>>
97%
49023
77%
**58
93%
Winchester 6.5 StaBALL
<<locked>>
85%
57392
90%
**04
100%
Winchester StaBALL HD 👍
<<locked>>
96%
57319
90%
**98
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
[ADI AR 2209]*
<<locked>>
81%
40611
64%
**32
93%
[ADI AR 2213]*
<<locked>>
83%
39378
62%
**12
90%
[ADI AR 2217]*
<<locked>>
92%
38754
61%
**66
90%
[ADI AR 2225]*
<<locked>>
90%
32634
51%
**18
90%
Accurate 3100
<<locked>>
81%
36521
57%
**74
95%
Accurate 4350
<<locked>>
81%
48907
77%
**15
99%
[Accurate MAGPRO]*
<<locked>>
87%
44208
69%
**23
90%
Alliant Reloder-16
<<locked>>
81%
46557
73%
**28
99%
[Alliant Reloder-19]*
<<locked>>
81%
40683
64%
**19
93%
[Alliant Reloder-22]*
<<locked>>
81%
36376
57%
**40
91%
Alliant Reloder-23
<<locked>>
81%
34896
55%
**10
98%
[Alliant Reloder-25]*
<<locked>>
81%
30342
48%
**49
91%
Alliant Reloder-26
<<locked>>
81%
38986
61%
**58
97%
[Baschieri & Pellagri 109]*
<<locked>>
89%
47413
74%
**33
90%
[Bofors RP15]*
<<locked>>
82%
35476
56%
**07
90%
[Bofors RP30]*
<<locked>>
89%
37173
58%
**66
90%
[Bofors RP5]*
<<locked>>
81%
36376
57%
**40
91%
Bofors RP7
<<locked>>
81%
51256
80%
**35
98%
[Hodgdon H1000]*
<<locked>>
92%
38754
61%
**66
90%
Hodgdon H4350
<<locked>>
81%
44092
69%
**74
96%
[Hodgdon H4831]*
<<locked>>
86%
40132
63%
**82
90%
[Hodgdon H4831 SC]*
<<locked>>
83%
40132
63%
**82
90%
Hodgdon Hybrid 100V
<<locked>>
81%
43961
69%
**84
100%
Hodgdon LVR
<<locked>>
81%
51256
80%
**74
99%
[Hodgdon Retumbo]*
<<locked>>
90%
32634
51%
**18
90%
Hodgdon Superperformance
<<locked>>
81%
51184
80%
**94
98%
Hodgdon TrailBoss
<<locked>>
81%
28050
44%
**72
100%
IMR 4350
<<locked>>
81%
46369
73%
**30
96%
IMR 4451 Enduron
<<locked>>
81%
52562
82%
**55
98%
IMR 4831
<<locked>>
81%
41974
66%
**51
98%
[IMR 4955 Enduron]*
<<locked>>
82%
39233
61%
**33
90%
[IMR 7828 SSC]*
<<locked>>
82%
39073
61%
**09
90%
Lovex S065
<<locked>>
81%
49995
78%
**92
99%
Lovex S070
<<locked>>
81%
48428
76%
**66
98%
[Lovex S071]*
<<locked>>
81%
31038
49%
**13
92%
Norma 204
<<locked>>
81%
46992
74%
**60
95%
[Norma 217]*
<<locked>>
94%
33504
53%
**68
90%
[Norma MRP]*
<<locked>>
81%
38493
60%
**19
94%
Norma URP
<<locked>>
81%
47718
75%
**92
99%
[Ramshot Grand]*
<<locked>>
81%
38928
61%
**22
91%
Ramshot Hunter
<<locked>>
81%
46934
74%
**83
98%
[Ramshot Magnum]*
<<locked>>
81%
34055
53%
**31
90%
ReloadSwiss RS 14
<<locked>>
81%
28674
45%
**28
100%
ReloadSwiss RS 62
<<locked>>
81%
49066
77%
**22
99%
ReloadSwiss RS 70
<<locked>>
81%
47442
74%
**42
99%
[ReloadSwiss RS 76]*
<<locked>>
85%
33286
52%
**74
90%
[ReloadSwiss RS 80]*
<<locked>>
93%
41901
66%
**94
90%
[Rottweil R 904]*
<<locked>>
81%
41858
66%
**15
92%
[Rottweil R 905]*
<<locked>>
81%
39972
63%
**15
93%
Rottweil R 907
<<locked>>
81%
51256
80%
**35
98%
SNPE Vectan Tubal 7000
<<locked>>
81%
49197
77%
**33
98%
Shooters World Long Rifle
<<locked>>
81%
49995
78%
**92
99%
[Somchem S361]*
<<locked>>
81%
43120
68%
**92
92%
Somchem S365
<<locked>>
81%
44599
70%
**50
100%
[Somchem S385]*
<<locked>>
81%
40553
64%
**82
94%
Vihtavuori N135
<<locked>>
81%
53461
84%
**92
100%
Vihtavuori N150
<<locked>>
81%
47688
75%
**14
100%
Vihtavuori N160
<<locked>>
81%
51576
81%
**32
100%
[Vihtavuori N165]*
<<locked>>
81%
34055
53%
**02
91%
Vihtavuori N550
<<locked>>
81%
52025
82%
**94
100%
Vihtavuori N555
<<locked>>
81%
39320
62%
**02
98%
[Vihtavuori N560]*
<<locked>>
84%
40364
63%
**51
90%
[Vihtavuori N565]*
<<locked>>
87%
39378
62%
**86
90%
[Vihtavuori N568]*
<<locked>>
94%
43265
68%
**30
90%
Winchester 6.5 StaBALL
<<locked>>
81%
49037
77%
**50
100%
Winchester StaBALL HD
<<locked>>
81%
30995
49%
**77
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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