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Load data for .300 Norma Mag + .308 | 135gr | IBEX Viper

Recommended Powder(s): Alliant Reloder-16, Alliant Reloder-26, Ramshot Hunter, ReloadSwiss RS 70, Vihtavuori N555

.300 Norma Mag + .308 | 135gr | IBEX Viper

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.308 | 135gr | IBEX Viper
Manufacturer SKU:
T7004
Bullet Weight:
135gr | 8.7g
Bullet Diameter:
0.308" | 7.82mm
Bullet Length:
1.260" | 32.0mm
Caliber:
.300 Norma Mag load data
Case Length (l3):
2.490" | 63.2mm
Cartridge Length (C.O.L.):
3.445" | 87.5mm
Seated Depth:
0.305" | 7.7mm
Shank Seated Depth:
0.122" | 3.1mm
Case Capacity:
104.0 Grains of Water | 6.75 cm³
Primer Size:
Large Rifle Magnum (LRM)
Max. allowed Pressure:
63817 psi | 4400 bar
LID:
LID_B7015_C365
Last updated:
2025-01-01
Recommended Twist Rate:
1:12 - 1:10

Load data for 138 loads in caliber .300 Norma Mag with .308 | 135gr | IBEX Viper bullet and 69 powders such as Alliant Reloder-16, Alliant Reloder-26, Ramshot Hunter, ReloadSwiss RS 70, Vihtavuori N555. 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 2208
<<locked>>
85%
57276
90%
**94
100%
ADI AR 2209
<<locked>>
95%
57276
90%
**73
97%
ADI AR 2213
<<locked>>
97%
54694
86%
**53
95%
[ADI AR 2225]*
<<locked>>
97%
36637
57%
**53
92%
Accurate 2700
<<locked>>
85%
57159
90%
**32
98%
Accurate 3100
<<locked>>
97%
55506
87%
**74
99%
Accurate 4350
<<locked>>
89%
57421
90%
**43
100%
[Accurate MAGPRO]*
<<locked>>
97%
54027
85%
**40
93%
Alliant Reloder- TS 15.5
<<locked>>
84%
57334
90%
**01
100%
Alliant Reloder-16 👍
<<locked>>
91%
57232
90%
**96
100%
Alliant Reloder-17
<<locked>>
86%
57421
90%
**02
100%
Alliant Reloder-19
<<locked>>
95%
57435
90%
**73
98%
Alliant Reloder-22
<<locked>>
97%
54317
85%
**56
97%
Alliant Reloder-23
<<locked>>
97%
51401
81%
**91
100%
Alliant Reloder-25
<<locked>>
97%
45397
71%
**09
98%
Alliant Reloder-26 👍
<<locked>>
96%
56898
89%
**68
100%
Hodgdon H414
<<locked>>
86%
57116
89%
**69
99%
Hodgdon H4350
<<locked>>
93%
56985
89%
**07
98%
[Hodgdon H4831]*
<<locked>>
97%
50879
80%
**19
94%
Hodgdon H4831 SC
<<locked>>
97%
57159
90%
**33
95%
Hodgdon Hybrid 100V
<<locked>>
93%
57145
90%
**14
100%
Hodgdon LVR
<<locked>>
88%
56710
89%
**37
100%
[Hodgdon Retumbo]*
<<locked>>
97%
36637
57%
**53
92%
Hodgdon Superperformance
<<locked>>
88%
57029
89%
**96
99%
Hodgdon VARGET
<<locked>>
85%
57276
90%
**94
100%
Hodgdon TrailBoss
<<locked>>
96%
35027
55%
**96
100%
IMR 4064
<<locked>>
85%
57043
89%
**74
100%
IMR 4166 Enduron
<<locked>>
86%
57043
89%
**78
99%
IMR 4350
<<locked>>
91%
57043
89%
**10
98%
IMR 4451 Enduron
<<locked>>
87%
57029
89%
**94
99%
IMR 4831
<<locked>>
94%
57319
90%
**30
100%
IMR 4955 Enduron
<<locked>>
97%
55753
87%
**74
95%
IMR 7828 SSC
<<locked>>
97%
56478
89%
**92
96%
Lovex S065
<<locked>>
88%
56681
89%
**78
99%
Lovex S070
<<locked>>
89%
57072
89%
**10
99%
Lovex S071
<<locked>>
97%
46804
73%
**14
98%
Norma 204
<<locked>>
90%
56942
89%
**37
97%
Norma MRP
<<locked>>
96%
56869
89%
**35
99%
Norma URP
<<locked>>
90%
56782
89%
**46
100%
Ramshot Hunter 👍
<<locked>>
91%
56971
89%
**66
99%
Ramshot Magnum
<<locked>>
97%
53505
84%
**10
98%
ReloadSwiss RS 14
<<locked>>
97%
36071
57%
**49
100%
ReloadSwiss RS 60
<<locked>>
87%
57334
90%
**25
100%
ReloadSwiss RS 62
<<locked>>
89%
57000
89%
**69
100%
ReloadSwiss RS 70 👍
<<locked>>
90%
56913
89%
**15
100%
ReloadSwiss RS 76
<<locked>>
97%
44295
69%
**02
96%
Rottweil R 903
<<locked>>
84%
56681
89%
**94
100%
Rottweil R 904
<<locked>>
94%
57305
90%
**17
96%
Rottweil R 905
<<locked>>
96%
57392
90%
**73
98%
Rottweil R 907
<<locked>>
87%
56724
89%
**78
98%
SNPE Vectan SP 11
<<locked>>
84%
56797
89%
**20
100%
SNPE Vectan Tubal 5000
<<locked>>
85%
56739
89%
**53
100%
SNPE Vectan Tubal 7000
<<locked>>
88%
56884
89%
**38
99%
Shooters World Long Rifle
<<locked>>
88%
56681
89%
**78
99%
Somchem S355
<<locked>>
85%
57145
90%
**87
100%
Somchem S361
<<locked>>
93%
56855
89%
**58
95%
Somchem S365
<<locked>>
92%
57130
90%
**63
100%
Somchem S385
<<locked>>
95%
57188
90%
**27
98%
Vihtavuori N135
<<locked>>
86%
57246
90%
**12
100%
Vihtavuori N150
<<locked>>
90%
57377
90%
**45
100%
Vihtavuori N160
<<locked>>
88%
57348
90%
**14
100%
Vihtavuori N165
<<locked>>
97%
50952
80%
**86
97%
Vihtavuori N550
<<locked>>
87%
57174
90%
**43
100%
Vihtavuori N555 👍
<<locked>>
96%
56985
89%
**76
100%
Vihtavuori N560
<<locked>>
97%
54723
86%
**83
95%
[Vihtavuori N565]*
<<locked>>
97%
47282
74%
**05
93%
Winchester 6.5 StaBALL
<<locked>>
89%
57029
89%
**78
100%
Winchester 760
<<locked>>
86%
57116
89%
**69
99%
Winchester StaBALL HD
<<locked>>
97%
47123
74%
**50
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2208
<<locked>>
81%
51721
81%
**92
100%
[ADI AR 2209]*
<<locked>>
81%
36593
57%
**07
90%
[ADI AR 2213]*
<<locked>>
87%
40292
63%
**22
90%
[ADI AR 2225]*
<<locked>>
94%
33663
53%
**64
90%
Accurate 2700
<<locked>>
81%
50415
79%
**14
97%
[Accurate 3100]*
<<locked>>
81%
33286
52%
**89
93%
Accurate 4350
<<locked>>
81%
44164
69%
**97
98%
[Accurate MAGPRO]*
<<locked>>
92%
45513
71%
**69
90%
Alliant Reloder- TS 15.5
<<locked>>
81%
52736
83%
**28
100%
Alliant Reloder-16
<<locked>>
81%
41756
65%
**94
98%
Alliant Reloder-17
<<locked>>
81%
47485
74%
**25
100%
[Alliant Reloder-19]*
<<locked>>
81%
36753
58%
**13
91%
[Alliant Reloder-22]*
<<locked>>
83%
35433
56%
**17
90%
Alliant Reloder-23
<<locked>>
81%
31691
50%
**22
96%
[Alliant Reloder-25]*
<<locked>>
83%
29559
46%
**40
90%
Alliant Reloder-26
<<locked>>
81%
34098
53%
**33
95%
Hodgdon H414
<<locked>>
81%
49168
77%
**05
97%
[Hodgdon H4350]*
<<locked>>
81%
40495
63%
**63
94%
[Hodgdon H4831]*
<<locked>>
90%
41510
65%
**05
90%
[Hodgdon H4831 SC]*
<<locked>>
87%
41452
65%
**99
90%
Hodgdon Hybrid 100V
<<locked>>
81%
39392
62%
**59
99%
Hodgdon LVR
<<locked>>
81%
45861
72%
**33
98%
[Hodgdon Retumbo]*
<<locked>>
94%
33663
53%
**64
90%
Hodgdon Superperformance
<<locked>>
81%
44411
70%
**36
96%
Hodgdon VARGET
<<locked>>
81%
51184
80%
**82
100%
Hodgdon TrailBoss
<<locked>>
81%
28166
44%
**23
100%
IMR 4064
<<locked>>
81%
50676
79%
**66
100%
IMR 4166 Enduron
<<locked>>
81%
49821
78%
**36
97%
IMR 4350
<<locked>>
81%
42221
66%
**02
95%
IMR 4451 Enduron
<<locked>>
81%
48066
75%
**20
97%
IMR 4831
<<locked>>
81%
38348
60%
**46
97%
[IMR 4955 Enduron]*
<<locked>>
86%
40553
64%
**53
90%
[IMR 7828 SSC]*
<<locked>>
87%
40335
63%
**38
90%
Lovex S065
<<locked>>
81%
46238
72%
**71
98%
Lovex S070
<<locked>>
81%
44309
69%
**48
96%
[Lovex S071]*
<<locked>>
81%
29109
46%
**54
90%
[Norma 204]*
<<locked>>
81%
42018
66%
**25
93%
[Norma MRP]*
<<locked>>
81%
34258
54%
**13
91%
Norma URP
<<locked>>
81%
42975
67%
**71
98%
Ramshot Hunter
<<locked>>
81%
41858
66%
**54
96%
[Ramshot Magnum]*
<<locked>>
84%
34389
54%
**61
90%
ReloadSwiss RS 14
<<locked>>
81%
28732
45%
**69
100%
ReloadSwiss RS 60
<<locked>>
81%
46050
72%
**15
100%
ReloadSwiss RS 62
<<locked>>
81%
43395
68%
**97
98%
ReloadSwiss RS 70
<<locked>>
81%
41887
66%
**97
97%
[ReloadSwiss RS 76]*
<<locked>>
89%
34418
54%
**07
90%
Rottweil R 903
<<locked>>
81%
50995
80%
**82
100%
[Rottweil R 904]*
<<locked>>
82%
39030
61%
**20
90%
[Rottweil R 905]*
<<locked>>
81%
35955
56%
**94
91%
Rottweil R 907
<<locked>>
81%
46978
74%
**87
96%
SNPE Vectan SP 11
<<locked>>
81%
51837
81%
**45
100%
SNPE Vectan Tubal 5000
<<locked>>
81%
51111
80%
**71
100%
SNPE Vectan Tubal 7000
<<locked>>
81%
45266
71%
**12
96%
Shooters World Long Rifle
<<locked>>
81%
46238
72%
**71
98%
Somchem S355
<<locked>>
81%
50937
80%
**86
100%
[Somchem S361]*
<<locked>>
83%
40973
64%
**30
90%
Somchem S365
<<locked>>
81%
39494
62%
**31
100%
[Somchem S385]*
<<locked>>
81%
36927
58%
**81
92%
Vihtavuori N135
<<locked>>
81%
49240
77%
**81
100%
Vihtavuori N150
<<locked>>
81%
43874
69%
**09
100%
Vihtavuori N160
<<locked>>
81%
46195
72%
**97
99%
[Vihtavuori N165]*
<<locked>>
83%
33475
52%
**76
90%
Vihtavuori N550
<<locked>>
81%
46717
73%
**46
99%
Vihtavuori N555
<<locked>>
81%
35302
55%
**07
96%
[Vihtavuori N560]*
<<locked>>
88%
40872
64%
**74
90%
[Vihtavuori N565]*
<<locked>>
92%
39784
62%
**18
90%
Winchester 6.5 StaBALL
<<locked>>
81%
43337
68%
**22
100%
Winchester 760
<<locked>>
81%
49168
77%
**05
97%
Winchester StaBALL HD
<<locked>>
81%
25599
40%
**95
95%

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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