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Load data for .30-378 Weath. Mag. + .308 | 120gr | GM Geschoss-Manufaktur Splinter TIP

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

.30-378 Weath. Mag. + .308 | 120gr | GM Geschoss-Manufaktur Splinter TIP

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.308 | 120gr | GM Geschoss-Manufaktur Splinter TIP
Manufacturer SKU:
GM0302
Bullet Weight:
120gr | 7.8g
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_B12026_C333
Last updated:
2026-03-24
Recommended Twist Rate:
1:11 - 1:9

Load data for 136 loads in caliber .30-378 Weath. Mag. with .308 | 120gr | GM Geschoss-Manufaktur Splinter TIP bullet and 68 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%
56913
89%
**63
98%
ADI AR 2213
<<locked>>
94%
57261
90%
**02
97%
[ADI AR 2217]*
<<locked>>
97%
45876
72%
**23
94%
ADI AR 2225
<<locked>>
97%
41118
64%
**64
96%
Accurate 3100
<<locked>>
94%
57072
89%
**88
100%
Accurate 4350
<<locked>>
86%
57101
89%
**33
100%
Accurate MAGPRO
<<locked>>
94%
57101
89%
**83
95%
Alliant Reloder-16
<<locked>>
87%
57072
89%
**86
100%
Alliant Reloder-19
<<locked>>
91%
57319
90%
**56
98%
Alliant Reloder-22
<<locked>>
94%
57246
90%
**83
98%
Alliant Reloder-23 👍
<<locked>>
96%
57290
90%
**50
100%
Alliant Reloder-25
<<locked>>
97%
52112
82%
**17
100%
Alliant Reloder-26 👍
<<locked>>
91%
57043
89%
**25
100%
[Baschieri & Pellagri 109]*
<<locked>>
95%
56971
89%
**01
94%
Bofors RP15
<<locked>>
97%
57276
90%
**76
98%
Bofors RP30
<<locked>>
97%
47935
75%
**99
95%
Bofors RP5
<<locked>>
94%
57246
90%
**83
98%
Bofors RP7
<<locked>>
85%
57421
90%
**07
99%
[Hodgdon H1000]*
<<locked>>
97%
45876
72%
**23
94%
Hodgdon H4350
<<locked>>
89%
57072
89%
**01
99%
Hodgdon H4831
<<locked>>
96%
56942
89%
**20
96%
Hodgdon H4831 SC
<<locked>>
93%
57174
90%
**30
97%
Hodgdon Hybrid 100V
<<locked>>
89%
57377
90%
**04
100%
Hodgdon LVR
<<locked>>
85%
57319
90%
**47
100%
Hodgdon Retumbo
<<locked>>
97%
41118
64%
**64
96%
Hodgdon Superperformance
<<locked>>
84%
57188
90%
**63
99%
Hodgdon TrailBoss
<<locked>>
97%
35259
55%
**23
100%
IMR 4166 Enduron
<<locked>>
83%
57319
90%
**01
99%
IMR 4350
<<locked>>
88%
57087
89%
**97
99%
IMR 4451 Enduron
<<locked>>
84%
56956
89%
**04
99%
IMR 4831
<<locked>>
91%
57348
90%
**14
100%
IMR 4955 Enduron
<<locked>>
94%
57174
90%
**01
97%
IMR 7828 SSC
<<locked>>
93%
57334
90%
**09
97%
Lovex S065
<<locked>>
86%
57348
90%
**97
100%
Lovex S070
<<locked>>
87%
57334
90%
**20
99%
Lovex S071
<<locked>>
97%
51938
81%
**96
99%
Norma 204
<<locked>>
87%
56913
89%
**30
98%
[Norma 217]*
<<locked>>
97%
36564
57%
**33
93%
Norma MRP 👍
<<locked>>
92%
56942
89%
**96
99%
Norma URP
<<locked>>
87%
56985
89%
**47
100%
Ramshot Grand
<<locked>>
91%
57000
89%
**96
98%
Ramshot Hunter
<<locked>>
87%
57014
89%
**43
100%
Ramshot Magnum
<<locked>>
94%
57319
90%
**40
99%
ReloadSwiss RS 14
<<locked>>
96%
35853
56%
**69
100%
ReloadSwiss RS 62
<<locked>>
86%
57043
89%
**47
100%
ReloadSwiss RS 70
<<locked>>
86%
56927
89%
**89
100%
ReloadSwiss RS 76
<<locked>>
97%
52040
82%
**60
99%
[ReloadSwiss RS 80]*
<<locked>>
97%
46891
73%
**83
93%
Rottweil R 904
<<locked>>
91%
57421
90%
**27
97%
Rottweil R 905
<<locked>>
92%
57188
90%
**53
98%
Rottweil R 907
<<locked>>
85%
57421
90%
**07
99%
SNPE Vectan Tubal 7000
<<locked>>
86%
57087
89%
**51
99%
Shooters World Long Rifle
<<locked>>
86%
57348
90%
**97
100%
Somchem S361
<<locked>>
90%
57101
89%
**51
97%
Somchem S365
<<locked>>
88%
57159
90%
**37
100%
Somchem S385
<<locked>>
92%
57421
90%
**07
99%
Vihtavuori N135
<<locked>>
84%
57203
90%
**06
100%
Vihtavuori N150
<<locked>>
87%
56927
89%
**38
100%
Vihtavuori N160
<<locked>>
84%
57029
89%
**04
100%
Vihtavuori N165
<<locked>>
97%
57421
90%
**91
99%
Vihtavuori N550
<<locked>>
84%
57145
90%
**40
100%
Vihtavuori N555 👍
<<locked>>
92%
56985
89%
**43
100%
Vihtavuori N560
<<locked>>
94%
57087
89%
**96
97%
Vihtavuori N565
<<locked>>
97%
54621
86%
**17
96%
[Vihtavuori N568]*
<<locked>>
97%
47703
75%
**02
93%
Winchester 6.5 StaBALL
<<locked>>
86%
57348
90%
**58
100%
Winchester StaBALL HD 👍
<<locked>>
96%
57363
90%
**48
100%
Winchester Supreme 780
<<locked>>
90%
57174
90%
**97
98%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
[ADI AR 2209]*
<<locked>>
81%
40030
63%
**79
93%
[ADI AR 2213]*
<<locked>>
83%
38305
60%
**43
90%
[ADI AR 2217]*
<<locked>>
92%
37840
59%
**10
90%
[ADI AR 2225]*
<<locked>>
90%
32024
50%
**69
90%
[Accurate 3100]*
<<locked>>
81%
35360
55%
**05
94%
Accurate 4350
<<locked>>
81%
47863
75%
**63
99%
[Accurate MAGPRO]*
<<locked>>
86%
42467
67%
**61
90%
Alliant Reloder-16
<<locked>>
81%
45730
72%
**63
99%
[Alliant Reloder-19]*
<<locked>>
81%
39958
63%
**73
93%
[Alliant Reloder-22]*
<<locked>>
81%
35433
56%
**64
91%
Alliant Reloder-23
<<locked>>
81%
34069
53%
**41
98%
[Alliant Reloder-25]*
<<locked>>
81%
29544
46%
**00
91%
Alliant Reloder-26
<<locked>>
81%
37927
59%
**96
97%
[Baschieri & Pellagri 109]*
<<locked>>
88%
45963
72%
**51
90%
[Bofors RP15]*
<<locked>>
82%
34519
54%
**48
90%
[Bofors RP30]*
<<locked>>
89%
36289
57%
**04
90%
[Bofors RP5]*
<<locked>>
81%
35433
56%
**64
91%
Bofors RP7
<<locked>>
81%
50546
79%
**83
98%
[Hodgdon H1000]*
<<locked>>
92%
37840
59%
**10
90%
Hodgdon H4350
<<locked>>
81%
43671
68%
**28
96%
[Hodgdon H4831]*
<<locked>>
85%
38856
61%
**17
90%
[Hodgdon H4831 SC]*
<<locked>>
82%
39030
61%
**14
90%
Hodgdon Hybrid 100V
<<locked>>
81%
42989
67%
**28
100%
Hodgdon LVR
<<locked>>
81%
50401
79%
**12
99%
[Hodgdon Retumbo]*
<<locked>>
90%
32024
50%
**69
90%
Hodgdon Superperformance
<<locked>>
81%
50096
79%
**42
98%
Hodgdon TrailBoss
<<locked>>
81%
27862
44%
**33
100%
IMR 4166 Enduron
<<locked>>
81%
53417
84%
**15
99%
IMR 4350
<<locked>>
81%
45977
72%
**84
97%
IMR 4451 Enduron
<<locked>>
81%
52112
82%
**09
98%
IMR 4831
<<locked>>
81%
40988
64%
**76
98%
[IMR 4955 Enduron]*
<<locked>>
81%
37681
59%
**64
90%
[IMR 7828 SSC]*
<<locked>>
82%
37840
59%
**43
90%
Lovex S065
<<locked>>
81%
49313
77%
**37
99%
Lovex S070
<<locked>>
81%
47558
75%
**20
98%
[Lovex S071]*
<<locked>>
81%
30066
47%
**48
92%
Norma 204
<<locked>>
81%
46383
73%
**27
95%
[Norma 217]*
<<locked>>
94%
32793
51%
**18
90%
[Norma MRP]*
<<locked>>
81%
37391
59%
**53
94%
Norma URP
<<locked>>
81%
46775
73%
**43
99%
[Ramshot Grand]*
<<locked>>
81%
38072
60%
**53
90%
Ramshot Hunter
<<locked>>
81%
46108
72%
**20
98%
[Ramshot Magnum]*
<<locked>>
81%
33185
52%
**79
91%
ReloadSwiss RS 14
<<locked>>
81%
28456
45%
**78
100%
ReloadSwiss RS 62
<<locked>>
81%
48124
75%
**79
99%
ReloadSwiss RS 70
<<locked>>
81%
46601
73%
**96
99%
[ReloadSwiss RS 76]*
<<locked>>
85%
32561
51%
**05
90%
[ReloadSwiss RS 80]*
<<locked>>
93%
40669
64%
**32
90%
[Rottweil R 904]*
<<locked>>
81%
41176
65%
**73
92%
[Rottweil R 905]*
<<locked>>
81%
39001
61%
**43
93%
Rottweil R 907
<<locked>>
81%
50546
79%
**83
98%
SNPE Vectan Tubal 7000
<<locked>>
81%
48370
76%
**71
98%
Shooters World Long Rifle
<<locked>>
81%
49313
77%
**37
99%
[Somchem S361]*
<<locked>>
81%
42148
66%
**40
92%
Somchem S365
<<locked>>
81%
43903
69%
**91
100%
[Somchem S385]*
<<locked>>
81%
39624
62%
**30
94%
Vihtavuori N135
<<locked>>
81%
52518
82%
**40
100%
Vihtavuori N150
<<locked>>
81%
46920
74%
**68
100%
Vihtavuori N160
<<locked>>
81%
50459
79%
**76
100%
[Vihtavuori N165]*
<<locked>>
81%
33112
52%
**40
91%
Vihtavuori N550
<<locked>>
81%
51329
80%
**38
100%
Vihtavuori N555
<<locked>>
81%
38101
60%
**33
98%
[Vihtavuori N560]*
<<locked>>
83%
38856
61%
**89
90%
[Vihtavuori N565]*
<<locked>>
87%
38276
60%
**27
90%
[Vihtavuori N568]*
<<locked>>
93%
42076
66%
**68
90%
Winchester 6.5 StaBALL
<<locked>>
81%
48124
75%
**87
100%
Winchester StaBALL HD
<<locked>>
81%
30066
47%
**12
97%
[Winchester Supreme 780]*
<<locked>>
81%
39958
63%
**27
93%

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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