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Load data for .30-378 Weath. Mag. + .308 | 155gr | Norma GTX

Recommended Powder(s): ADI AR 2213, Hodgdon H4831, IMR 7828 SSC, ReloadSwiss RS 76, Vihtavuori N560

.30-378 Weath. Mag. + .308 | 155gr | Norma GTX

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.308 | 155gr | Norma GTX
Manufacturer SKU:
10676861
Bullet Weight:
155gr | 10.0g
Bullet Diameter:
0.308" | 7.82mm
Bullet Length:
1.165" | 29.6mm
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:
0.478" | 12.1mm
Shank Seated Depth:
0.320" | 8.1mm
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_B10055_C333
Last updated:
2025-01-01
Recommended Twist Rate:
1:14 - 1:12

Load data for 92 loads in caliber .30-378 Weath. Mag. with .308 | 155gr | Norma GTX bullet and 46 powders such as ADI AR 2213, Hodgdon H4831, IMR 7828 SSC, ReloadSwiss RS 76, Vihtavuori N560. 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>>
86%
56971
89%
**45
100%
ADI AR 2213 👍
<<locked>>
88%
57246
90%
**68
99%
ADI AR 2217
<<locked>>
97%
56724
89%
**61
99%
[ADI AR 2218]*
<<locked>>
97%
49647
78%
**02
94%
ADI AR 2225
<<locked>>
97%
51808
81%
**12
100%
Accurate 3100
<<locked>>
88%
57290
90%
**66
100%
Accurate MAGPRO
<<locked>>
88%
57377
90%
**81
98%
Alliant Reloder-19
<<locked>>
86%
57174
90%
**32
100%
Alliant Reloder-22
<<locked>>
88%
57116
89%
**55
100%
Alliant Reloder-23
<<locked>>
89%
57203
90%
**09
100%
Alliant Reloder-25
<<locked>>
93%
57246
90%
**68
100%
Alliant Reloder-26
<<locked>>
85%
57203
90%
**84
100%
Alliant Reloder-33
<<locked>>
97%
55201
87%
**64
96%
[Alliant Reloder-50]*
<<locked>>
97%
47137
74%
**00
93%
Hodgdon H1000
<<locked>>
97%
56724
89%
**61
99%
Hodgdon H4350
<<locked>>
84%
57217
90%
**92
100%
Hodgdon H4831 👍
<<locked>>
91%
57246
90%
**28
99%
Hodgdon H4831 SC
<<locked>>
87%
57014
89%
**15
99%
Hodgdon Hybrid 100V
<<locked>>
83%
57116
89%
**46
100%
Hodgdon Retumbo
<<locked>>
97%
51808
81%
**12
100%
Hodgdon TrailBoss
<<locked>>
97%
36172
57%
**83
100%
IMR 4831
<<locked>>
85%
57217
90%
**76
100%
IMR 4955 Enduron
<<locked>>
89%
57217
90%
**92
99%
IMR 7828 SSC 👍
<<locked>>
87%
57203
90%
**87
99%
[IMR 7977 Enduron]*
<<locked>>
93%
57276
90%
**40
93%
IMR 8133 Enduron
<<locked>>
97%
47877
75%
**10
98%
[Lovex D100]*
<<locked>>
97%
56478
89%
**56
92%
Lovex S071
<<locked>>
93%
57014
89%
**66
100%
Norma 217
<<locked>>
97%
48443
76%
**36
99%
Norma MRP
<<locked>>
86%
57276
90%
**81
100%
Ramshot Magnum
<<locked>>
88%
57014
89%
**32
100%
ReloadSwiss RS 14
<<locked>>
97%
36970
58%
**29
100%
ReloadSwiss RS 76 👍
<<locked>>
93%
56826
89%
**27
100%
ReloadSwiss RS 80
<<locked>>
95%
57043
89%
**94
98%
Rottweil R 904
<<locked>>
85%
57188
90%
**02
99%
Rottweil R 905
<<locked>>
86%
56927
89%
**28
100%
Somchem S361
<<locked>>
85%
57348
90%
**59
99%
Somchem S385
<<locked>>
86%
57101
89%
**99
100%
Vihtavuori N165
<<locked>>
91%
57261
90%
**73
100%
[Vihtavuori N170]*
<<locked>>
97%
52678
83%
**14
94%
Vihtavuori N555
<<locked>>
86%
57116
89%
**05
100%
Vihtavuori N560 👍
<<locked>>
88%
56869
89%
**78
99%
Vihtavuori N565
<<locked>>
92%
57377
90%
**61
99%
Vihtavuori N568
<<locked>>
95%
57203
90%
**97
98%
Vihtavuori N570
<<locked>>
96%
56942
89%
**27
96%
Winchester StaBALL HD
<<locked>>
89%
57058
89%
**81
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2209
<<locked>>
81%
48834
77%
**87
99%
ADI AR 2213
<<locked>>
81%
43932
69%
**05
96%
[ADI AR 2217]*
<<locked>>
81%
32677
51%
**10
91%
[ADI AR 2218]*
<<locked>>
92%
41321
65%
**82
90%
[ADI AR 2225]*
<<locked>>
81%
29892
47%
**64
93%
Accurate 3100
<<locked>>
81%
44715
70%
**40
99%
[Accurate MAGPRO]*
<<locked>>
81%
44121
69%
**15
94%
Alliant Reloder-19
<<locked>>
81%
48762
76%
**74
99%
Alliant Reloder-22
<<locked>>
81%
44715
70%
**18
98%
Alliant Reloder-23
<<locked>>
81%
43352
68%
**63
100%
Alliant Reloder-25
<<locked>>
81%
37420
59%
**77
99%
Alliant Reloder-26
<<locked>>
81%
49458
77%
**50
100%
[Alliant Reloder-33]*
<<locked>>
88%
39160
61%
**20
90%
[Alliant Reloder-50]*
<<locked>>
93%
40785
64%
**43
90%
[Hodgdon H1000]*
<<locked>>
81%
32677
51%
**10
91%
Hodgdon H4350
<<locked>>
81%
52069
82%
**00
100%
Hodgdon H4831
<<locked>>
81%
41176
65%
**94
95%
Hodgdon H4831 SC
<<locked>>
81%
45788
72%
**05
96%
Hodgdon Hybrid 100V
<<locked>>
81%
52620
82%
**77
100%
[Hodgdon Retumbo]*
<<locked>>
81%
29892
47%
**64
93%
Hodgdon TrailBoss
<<locked>>
81%
28703
45%
**06
100%
IMR 4831
<<locked>>
81%
50096
78%
**61
100%
IMR 4955 Enduron
<<locked>>
81%
44802
70%
**46
96%
IMR 7828 SSC
<<locked>>
81%
45455
71%
**58
97%
[IMR 7977 Enduron]*
<<locked>>
88%
47529
74%
**59
90%
[IMR 8133 Enduron]*
<<locked>>
85%
30980
49%
**80
90%
[Lovex D100]*
<<locked>>
94%
51256
80%
**64
90%
Lovex S071
<<locked>>
81%
38348
60%
**99
98%
[Norma 217]*
<<locked>>
81%
27543
43%
**85
90%
Norma MRP
<<locked>>
81%
47630
75%
**94
99%
Ramshot Magnum
<<locked>>
81%
42540
67%
**63
98%
ReloadSwiss RS 14
<<locked>>
81%
29472
46%
**52
100%
ReloadSwiss RS 76
<<locked>>
81%
36100
57%
**74
97%
[ReloadSwiss RS 80]*
<<locked>>
82%
34287
54%
**79
90%
Rottweil R 904
<<locked>>
81%
49487
78%
**58
98%
Rottweil R 905
<<locked>>
81%
48341
76%
**64
99%
Somchem S361
<<locked>>
81%
50821
80%
**41
98%
Somchem S385
<<locked>>
81%
48747
76%
**41
99%
Vihtavuori N165
<<locked>>
81%
41321
65%
**77
97%
[Vihtavuori N170]*
<<locked>>
90%
42496
67%
**00
90%
Vihtavuori N555
<<locked>>
81%
48153
75%
**51
100%
Vihtavuori N560
<<locked>>
81%
44918
70%
**35
96%
[Vihtavuori N565]*
<<locked>>
81%
39189
61%
**81
94%
[Vihtavuori N568]*
<<locked>>
82%
35418
56%
**08
90%
[Vihtavuori N570]*
<<locked>>
87%
40828
64%
**72
90%
Winchester StaBALL HD
<<locked>>
81%
41510
65%
**09
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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