top of page

Load data for .300 Norma Mag + .308 | 115gr | Sierra Varmint

Recommended Powder(s): Alliant Reloder-16, Norma URP, ReloadSwiss RS 62, Somchem S365, Vihtavuori N550

.300 Norma 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:
1.003" | 25.5mm
Caliber:
.300 Norma Mag load data
Case Length (l3):
2.490" | 63.2mm
Cartridge Length (C.O.L.):
3.625" | 92.1mm
Seated Depth:
-0.132" | -3.3mm
Shank Seated Depth:
-0.132" | -3.3mm
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_B10948_C365
Last updated:
2025-08-15

Load data for 158 loads in caliber .300 Norma Mag with .308 | 115gr | Sierra Varmint bullet and 79 powders such as Alliant Reloder-16, Norma URP, ReloadSwiss RS 62, Somchem S365, Vihtavuori N550. 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".

  • No data yet

  • 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.

    .

    Loading_icon.gif

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>>
87%
57159
90%
**20
100%
ADI AR 2209
<<locked>>
97%
55840
87%
**60
96%
[ADI AR 2213]*
<<locked>>
97%
50343
79%
**65
92%
Accurate 2700
<<locked>>
87%
57130
90%
**61
97%
Accurate 3100
<<locked>>
97%
49182
77%
**66
97%
Accurate 4064
<<locked>>
85%
57174
90%
**01
100%
Accurate 4350
<<locked>>
92%
56797
89%
**60
99%
Alliant Reloder- TS 15.5
<<locked>>
86%
56739
89%
**33
100%
Alliant Reloder-15
<<locked>>
84%
57348
90%
**56
100%
Alliant Reloder-16 👍
<<locked>>
94%
57421
90%
**38
100%
Alliant Reloder-17
<<locked>>
89%
57145
90%
**38
100%
Alliant Reloder-19
<<locked>>
97%
54911
86%
**37
96%
[Alliant Reloder-22]*
<<locked>>
97%
49182
77%
**55
94%
Alliant Reloder-23
<<locked>>
97%
46238
72%
**92
99%
Alliant Reloder-25
<<locked>>
97%
40393
63%
**58
95%
Alliant Reloder-26
<<locked>>
97%
53534
84%
**22
99%
Hodgdon CFE223
<<locked>>
84%
57363
90%
**70
100%
Hodgdon H380
<<locked>>
86%
57203
90%
**43
99%
Hodgdon H414
<<locked>>
88%
57058
89%
**86
98%
Hodgdon H4350
<<locked>>
95%
56942
89%
**14
97%
[Hodgdon H4831 SC]*
<<locked>>
97%
52823
83%
**61
93%
Hodgdon Hybrid 100V
<<locked>>
96%
57116
90%
**40
100%
Hodgdon LVR
<<locked>>
91%
57203
90%
**79
99%
Hodgdon Superperformance
<<locked>>
91%
57392
90%
**12
98%
Hodgdon VARGET
<<locked>>
87%
57159
90%
**20
100%
Hodgdon TrailBoss
<<locked>>
96%
34330
54%
**74
100%
IMR 3031
<<locked>>
84%
57290
90%
**37
100%
IMR 4064
<<locked>>
87%
56855
89%
**14
100%
IMR 4166 Enduron
<<locked>>
88%
57246
90%
**97
98%
IMR 4350
<<locked>>
93%
56956
89%
**27
97%
IMR 4451 Enduron
<<locked>>
89%
57348
90%
**24
98%
IMR 4831
<<locked>>
97%
55970
88%
**33
99%
IMR 4895
<<locked>>
83%
57319
90%
**76
100%
[IMR 4955 Enduron]*
<<locked>>
97%
51750
81%
**12
93%
[IMR 7828 SSC]*
<<locked>>
97%
51721
81%
**07
93%
Lovex S062
<<locked>>
85%
57392
90%
**07
100%
Lovex S065
<<locked>>
91%
56797
89%
**04
99%
Lovex S070
<<locked>>
92%
57043
89%
**27
98%
Lovex S071
<<locked>>
97%
41089
64%
**86
95%
Norma 203B
<<locked>>
85%
57377
90%
**53
100%
Norma 204
<<locked>>
93%
57261
90%
**70
96%
Norma MRP
<<locked>>
97%
52170
82%
**47
97%
Norma URP 👍
<<locked>>
93%
57014
89%
**83
100%
Ramshot Big Game
<<locked>>
84%
57014
89%
**50
100%
Ramshot Hunter
<<locked>>
93%
57348
90%
**96
99%
Ramshot Magnum
<<locked>>
97%
48240
76%
**92
95%
ReloadSwiss RS 14
<<locked>>
97%
35201
55%
**33
100%
ReloadSwiss RS 50
<<locked>>
86%
57203
90%
**14
98%
ReloadSwiss RS 52
<<locked>>
84%
57116
90%
**70
100%
ReloadSwiss RS 60
<<locked>>
90%
56985
89%
**58
100%
ReloadSwiss RS 62 👍
<<locked>>
92%
57217
90%
**96
99%
ReloadSwiss RS 70
<<locked>>
93%
57392
90%
**55
99%
Rottweil R 902
<<locked>>
84%
57159
90%
**94
100%
Rottweil R 903
<<locked>>
88%
57246
90%
**33
100%
Rottweil R 904
<<locked>>
97%
57246
90%
**37
95%
Rottweil R 905
<<locked>>
97%
54375
85%
**33
96%
Rottweil R 907
<<locked>>
90%
56927
89%
**14
97%
SNPE Vectan SP 11
<<locked>>
87%
57203
90%
**60
100%
SNPE Vectan Tubal 5000
<<locked>>
87%
57174
90%
**99
100%
SNPE Vectan Tubal 7000
<<locked>>
91%
57406
90%
**68
98%
Shooters World Long Rifle
<<locked>>
91%
56797
89%
**04
99%
Shooters World Precision
<<locked>>
85%
57392
90%
**07
100%
Somchem S355
<<locked>>
88%
56913
89%
**27
100%
[Somchem S361]*
<<locked>>
95%
56811
89%
**68
94%
Somchem S365 👍
<<locked>>
95%
57159
90%
**89
100%
Somchem S385
<<locked>>
97%
55477
87%
**97
97%
Vihtavuori N133
<<locked>>
84%
56913
89%
**02
100%
Vihtavuori N135
<<locked>>
89%
56884
89%
**45
100%
Vihtavuori N140
<<locked>>
84%
57435
90%
**68
100%
Vihtavuori N150
<<locked>>
93%
56942
89%
**84
100%
Vihtavuori N160
<<locked>>
90%
56985
89%
**27
99%
[Vihtavuori N165]*
<<locked>>
97%
46122
72%
**87
94%
Vihtavuori N540
<<locked>>
84%
57406
90%
**91
100%
Vihtavuori N550 👍
<<locked>>
90%
57261
90%
**83
99%
Vihtavuori N555
<<locked>>
97%
51634
81%
**91
99%
[Vihtavuori N560]*
<<locked>>
97%
49588
78%
**71
92%
Winchester 6.5 StaBALL
<<locked>>
91%
56840
89%
**97
100%
Winchester 760
<<locked>>
88%
57058
89%
**86
98%
Winchester StaBALL HD
<<locked>>
97%
40959
64%
**25
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2208
<<locked>>
81%
47456
74%
**27
99%
[ADI AR 2209]*
<<locked>>
87%
40147
63%
**02
90%
[ADI AR 2213]*
<<locked>>
94%
45223
71%
**30
90%
[Accurate 2700]*
<<locked>>
81%
46079
72%
**22
94%
[Accurate 3100]*
<<locked>>
85%
32155
50%
**46
90%
Accurate 4064
<<locked>>
81%
50357
79%
**83
100%
Accurate 4350
<<locked>>
81%
38392
60%
**63
95%
Alliant Reloder- TS 15.5
<<locked>>
81%
48022
75%
**60
100%
Alliant Reloder-15
<<locked>>
81%
51329
80%
**51
99%
Alliant Reloder-16
<<locked>>
81%
37347
59%
**79
95%
Alliant Reloder-17
<<locked>>
81%
42612
67%
**40
99%
[Alliant Reloder-19]*
<<locked>>
87%
39407
62%
**73
90%
[Alliant Reloder-22]*
<<locked>>
90%
39392
62%
**05
90%
[Alliant Reloder-23]*
<<locked>>
81%
27325
43%
**44
91%
[Alliant Reloder-25]*
<<locked>>
90%
32880
52%
**22
90%
[Alliant Reloder-26]*
<<locked>>
82%
30777
48%
**05
90%
Hodgdon CFE223
<<locked>>
81%
51082
80%
**51
99%
Hodgdon H380
<<locked>>
81%
48834
77%
**83
98%
[Hodgdon H414]*
<<locked>>
81%
44164
69%
**14
94%
[Hodgdon H4350]*
<<locked>>
81%
36158
57%
**48
90%
[Hodgdon H4831 SC]*
<<locked>>
93%
45861
72%
**04
90%
Hodgdon Hybrid 100V
<<locked>>
81%
34621
54%
**51
96%
Hodgdon LVR
<<locked>>
81%
41191
65%
**35
96%
[Hodgdon Superperformance]*
<<locked>>
81%
39798
62%
**22
92%
Hodgdon VARGET
<<locked>>
81%
47007
74%
**17
98%
Hodgdon TrailBoss
<<locked>>
81%
27543
43%
**96
100%
IMR 3031
<<locked>>
81%
52533
82%
**45
100%
IMR 4064
<<locked>>
81%
46514
73%
**07
99%
IMR 4166 Enduron
<<locked>>
81%
45614
71%
**55
95%
[IMR 4350]*
<<locked>>
81%
37913
59%
**97
91%
[IMR 4451 Enduron]*
<<locked>>
81%
44034
69%
**35
94%
[IMR 4831]*
<<locked>>
81%
33199
52%
**92
93%
IMR 4895
<<locked>>
81%
52576
82%
**78
100%
[IMR 4955 Enduron]*
<<locked>>
92%
44788
70%
**41
90%
[IMR 7828 SSC]*
<<locked>>
93%
44382
70%
**37
90%
Lovex S062
<<locked>>
81%
50038
78%
**76
100%
Lovex S065
<<locked>>
81%
41452
65%
**82
95%
[Lovex S070]*
<<locked>>
81%
39668
62%
**43
93%
[Lovex S071]*
<<locked>>
90%
32155
50%
**46
90%
Norma 203B
<<locked>>
81%
50691
79%
**35
99%
[Norma 204]*
<<locked>>
83%
40277
63%
**79
90%
[Norma MRP]*
<<locked>>
86%
36042
56%
**43
90%
Norma URP
<<locked>>
81%
38189
60%
**56
95%
Ramshot Big Game
<<locked>>
81%
51343
80%
**45
99%
[Ramshot Hunter]*
<<locked>>
81%
37231
58%
**27
93%
[Ramshot Magnum]*
<<locked>>
91%
38101
60%
**33
90%
ReloadSwiss RS 14
<<locked>>
81%
27905
44%
**42
100%
ReloadSwiss RS 50
<<locked>>
81%
49153
77%
**56
97%
ReloadSwiss RS 52
<<locked>>
81%
50720
79%
**45
100%
ReloadSwiss RS 60
<<locked>>
81%
41336
65%
**27
99%
ReloadSwiss RS 62
<<locked>>
81%
38261
60%
**79
95%
[ReloadSwiss RS 70]*
<<locked>>
81%
37434
59%
**82
94%
Rottweil R 902
<<locked>>
81%
52112
82%
**02
100%
Rottweil R 903
<<locked>>
81%
45585
71%
**14
99%
[Rottweil R 904]*
<<locked>>
88%
42525
67%
**12
90%
[Rottweil R 905]*
<<locked>>
87%
39088
61%
**69
90%
[Rottweil R 907]*
<<locked>>
81%
42554
67%
**02
93%
SNPE Vectan SP 11
<<locked>>
81%
46789
73%
**63
99%
SNPE Vectan Tubal 5000
<<locked>>
81%
46717
73%
**22
100%
[SNPE Vectan Tubal 7000]*
<<locked>>
81%
40712
64%
**14
93%
Shooters World Long Rifle
<<locked>>
81%
41452
65%
**82
95%
Shooters World Precision
<<locked>>
81%
50038
78%
**76
100%
Somchem S355
<<locked>>
81%
45847
72%
**07
99%
[Somchem S361]*
<<locked>>
88%
44904
70%
**19
90%
Somchem S365
<<locked>>
81%
34360
54%
**91
97%
[Somchem S385]*
<<locked>>
84%
36100
57%
**64
90%
Vihtavuori N133
<<locked>>
81%
52286
82%
**23
100%
Vihtavuori N135
<<locked>>
81%
44353
69%
**22
100%
Vihtavuori N140
<<locked>>
81%
51779
81%
**69
100%
Vihtavuori N150
<<locked>>
81%
39146
61%
**20
99%
Vihtavuori N160
<<locked>>
81%
41408
65%
**99
96%
[Vihtavuori N165]*
<<locked>>
91%
37521
59%
**77
90%
Vihtavuori N540
<<locked>>
81%
51706
81%
**89
100%
Vihtavuori N550
<<locked>>
81%
41814
66%
**58
96%
[Vihtavuori N555]*
<<locked>>
81%
30037
47%
**43
92%
[Vihtavuori N560]*
<<locked>>
94%
45687
72%
**83
90%
Winchester 6.5 StaBALL
<<locked>>
81%
39001
61%
**23
98%
[Winchester 760]*
<<locked>>
81%
44164
69%
**14
94%
[Winchester StaBALL HD]*
<<locked>>
84%
26687
42%
**71
90%

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

bottom of page