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Load data for .300 Norma Mag + .308 | 165gr | Swift Scirocco

Recommended Powder(s): ADI AR 2209, Alliant Reloder-19, Alliant Reloder-25, Norma MRP, Rottweil R 905

.300 Norma Mag + .308 | 165gr | Swift Scirocco

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.308 | 165gr | Swift Scirocco
Bullet Weight:
165gr | 10.7g
Bullet Diameter:
0.308" | 7.82mm
Bullet Length:
1.350" | 34.3mm
Caliber:
.300 Norma Mag load data
Case Length (l3):
2.490" | 63.2mm
Cartridge Length (C.O.L.):
3.625" | 92.1mm
Seated Depth:
0.215" | 5.5mm
Shank Seated Depth:
0.115" | 2.9mm
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_B10845_C365
Last updated:
2025-02-02
Recommended Twist Rate:
1:12 - 1:10

Load data for 124 loads in caliber .300 Norma Mag with .308 | 165gr | Swift Scirocco bullet and 62 powders such as ADI AR 2209, Alliant Reloder-19, Alliant Reloder-25, Norma MRP, Rottweil R 905. 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%
57348
90%
**30
99%
ADI AR 2213
<<locked>>
94%
57000
89%
**56
98%
ADI AR 2217
<<locked>>
97%
45368
71%
**23
96%
ADI AR 2225
<<locked>>
97%
40857
64%
**90
98%
Accurate 3100
<<locked>>
94%
57029
89%
**64
100%
Accurate 4350
<<locked>>
86%
56956
89%
**77
100%
Accurate MAGPRO
<<locked>>
95%
56768
89%
**66
97%
Alliant Reloder-16
<<locked>>
87%
57145
90%
**27
100%
Alliant Reloder-19 👍
<<locked>>
92%
57276
90%
**20
99%
Alliant Reloder-22
<<locked>>
94%
57043
89%
**59
99%
Alliant Reloder-23
<<locked>>
96%
56855
89%
**10
100%
Alliant Reloder-25 👍
<<locked>>
97%
51097
80%
**87
100%
Alliant Reloder-26
<<locked>>
92%
57290
90%
**96
100%
Hodgdon H1000
<<locked>>
97%
45368
71%
**23
96%
Hodgdon H4350
<<locked>>
89%
56869
89%
**58
100%
Hodgdon H4831
<<locked>>
97%
56811
89%
**94
98%
Hodgdon H4831 SC
<<locked>>
93%
56942
89%
**00
98%
Hodgdon Hybrid 100V
<<locked>>
89%
57290
90%
**48
100%
Hodgdon LVR
<<locked>>
85%
57159
90%
**87
100%
Hodgdon Retumbo
<<locked>>
97%
40857
64%
**90
98%
Hodgdon Superperformance
<<locked>>
85%
57145
90%
**43
100%
Hodgdon TrailBoss
<<locked>>
97%
35549
56%
**23
100%
IMR 4350
<<locked>>
88%
57348
90%
**61
100%
IMR 4451 Enduron
<<locked>>
84%
56898
89%
**41
100%
IMR 4831
<<locked>>
91%
56985
89%
**71
100%
IMR 4955 Enduron
<<locked>>
94%
56898
89%
**58
98%
IMR 7828 SSC
<<locked>>
94%
57203
90%
**76
98%
[IMR 8133 Enduron]*
<<locked>>
97%
36477
57%
**66
92%
Lovex S065
<<locked>>
86%
57305
90%
**38
100%
Lovex S070
<<locked>>
86%
57043
89%
**58
100%
Lovex S071
<<locked>>
97%
52141
82%
**79
100%
Norma 204
<<locked>>
87%
57145
90%
**04
99%
Norma 217
<<locked>>
97%
36753
58%
**05
95%
Norma MRP 👍
<<locked>>
92%
56985
89%
**76
100%
Norma URP
<<locked>>
87%
57217
90%
**91
100%
Ramshot Hunter
<<locked>>
87%
56898
89%
**14
100%
Ramshot Magnum
<<locked>>
95%
57348
90%
**40
100%
ReloadSwiss RS 14
<<locked>>
97%
36390
57%
**69
100%
ReloadSwiss RS 60
<<locked>>
84%
57014
89%
**50
100%
ReloadSwiss RS 62
<<locked>>
86%
56942
89%
**00
100%
ReloadSwiss RS 70
<<locked>>
87%
57217
90%
**56
100%
ReloadSwiss RS 76
<<locked>>
97%
50459
79%
**36
100%
ReloadSwiss RS 80
<<locked>>
97%
45847
72%
**95
95%
Rottweil R 904
<<locked>>
91%
57188
90%
**74
98%
Rottweil R 905 👍
<<locked>>
92%
57348
90%
**23
99%
Rottweil R 907
<<locked>>
85%
57246
90%
**58
100%
SNPE Vectan Tubal 7000
<<locked>>
86%
56884
89%
**95
100%
Shooters World Long Rifle
<<locked>>
86%
57305
90%
**38
100%
Somchem S361
<<locked>>
90%
56956
89%
**35
98%
Somchem S365
<<locked>>
88%
57087
89%
**84
100%
Somchem S385
<<locked>>
92%
57014
89%
**77
100%
Vihtavuori N135
<<locked>>
83%
57305
90%
**40
100%
Vihtavuori N150
<<locked>>
87%
57290
90%
**89
100%
Vihtavuori N160
<<locked>>
85%
57290
90%
**54
100%
Vihtavuori N165
<<locked>>
97%
57188
90%
**68
99%
Vihtavuori N550
<<locked>>
84%
56782
89%
**81
100%
Vihtavuori N555
<<locked>>
93%
57276
90%
**14
100%
Vihtavuori N560
<<locked>>
94%
57290
90%
**86
98%
Vihtavuori N565
<<locked>>
97%
53824
84%
**94
98%
[Vihtavuori N568]*
<<locked>>
97%
47181
74%
**15
94%
Winchester 6.5 StaBALL
<<locked>>
86%
56985
89%
**15
100%
Winchester StaBALL HD
<<locked>>
97%
56898
89%
**19
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2209
<<locked>>
81%
40567
64%
**02
95%
[ADI AR 2213]*
<<locked>>
81%
36071
57%
**13
92%
[ADI AR 2217]*
<<locked>>
88%
33605
53%
**31
90%
[ADI AR 2225]*
<<locked>>
86%
28369
44%
**10
90%
Accurate 3100
<<locked>>
81%
36347
57%
**64
97%
Accurate 4350
<<locked>>
81%
48544
76%
**43
100%
[Accurate MAGPRO]*
<<locked>>
83%
38116
60%
**69
90%
Alliant Reloder-16
<<locked>>
81%
46093
72%
**43
100%
Alliant Reloder-19
<<locked>>
81%
40292
63%
**89
95%
[Alliant Reloder-22]*
<<locked>>
81%
36027
56%
**17
94%
Alliant Reloder-23
<<locked>>
81%
34838
55%
**90
99%
Alliant Reloder-25
<<locked>>
81%
30414
48%
**85
95%
Alliant Reloder-26
<<locked>>
81%
38479
60%
**44
99%
[Hodgdon H1000]*
<<locked>>
88%
33605
53%
**31
90%
Hodgdon H4350
<<locked>>
81%
44092
69%
**28
98%
[Hodgdon H4831]*
<<locked>>
82%
34679
54%
**28
90%
[Hodgdon H4831 SC]*
<<locked>>
81%
37710
59%
**10
92%
Hodgdon Hybrid 100V
<<locked>>
81%
43613
68%
**25
100%
Hodgdon LVR
<<locked>>
81%
50676
79%
**86
100%
[Hodgdon Retumbo]*
<<locked>>
86%
28369
44%
**10
90%
Hodgdon Superperformance
<<locked>>
81%
50009
78%
**15
99%
Hodgdon TrailBoss
<<locked>>
81%
28210
44%
**59
100%
IMR 4350
<<locked>>
81%
46325
73%
**64
98%
IMR 4451 Enduron
<<locked>>
81%
52228
82%
**69
99%
IMR 4831
<<locked>>
81%
41945
66%
**99
99%
[IMR 4955 Enduron]*
<<locked>>
81%
38101
60%
**87
92%
[IMR 7828 SSC]*
<<locked>>
81%
36854
58%
**40
92%
[IMR 8133 Enduron]*
<<locked>>
93%
32663
51%
**64
90%
Lovex S065
<<locked>>
81%
49980
78%
**23
100%
Lovex S070
<<locked>>
81%
48283
76%
**04
99%
Lovex S071
<<locked>>
81%
31285
49%
**33
95%
Norma 204
<<locked>>
81%
46383
73%
**04
97%
[Norma 217]*
<<locked>>
89%
28398
45%
**49
90%
Norma MRP
<<locked>>
81%
37840
59%
**99
96%
Norma URP
<<locked>>
81%
47398
74%
**23
100%
Ramshot Hunter
<<locked>>
81%
46296
73%
**20
99%
[Ramshot Magnum]*
<<locked>>
81%
33446
52%
**48
93%
ReloadSwiss RS 14
<<locked>>
81%
29022
45%
**04
100%
ReloadSwiss RS 60
<<locked>>
81%
52011
82%
**61
100%
ReloadSwiss RS 62
<<locked>>
81%
48385
76%
**59
100%
ReloadSwiss RS 70
<<locked>>
81%
46644
73%
**82
100%
[ReloadSwiss RS 76]*
<<locked>>
81%
28935
45%
**59
90%
[ReloadSwiss RS 80]*
<<locked>>
90%
36129
57%
**69
90%
Rottweil R 904
<<locked>>
81%
41713
65%
**82
95%
Rottweil R 905
<<locked>>
81%
39726
62%
**76
95%
Rottweil R 907
<<locked>>
81%
51010
80%
**40
99%
SNPE Vectan Tubal 7000
<<locked>>
81%
48878
77%
**61
99%
Shooters World Long Rifle
<<locked>>
81%
49980
78%
**23
100%
[Somchem S361]*
<<locked>>
81%
42554
67%
**69
94%
Somchem S365
<<locked>>
81%
44483
70%
**81
100%
Somchem S385
<<locked>>
81%
40234
63%
**59
96%
Vihtavuori N135
<<locked>>
81%
53650
84%
**87
100%
Vihtavuori N150
<<locked>>
81%
47616
75%
**35
100%
Vihtavuori N160
<<locked>>
81%
50923
80%
**49
100%
[Vihtavuori N165]*
<<locked>>
81%
33953
53%
**98
94%
Vihtavuori N550
<<locked>>
81%
51576
81%
**02
100%
Vihtavuori N555
<<locked>>
81%
39160
61%
**82
99%
[Vihtavuori N560]*
<<locked>>
81%
36230
57%
**30
91%
[Vihtavuori N565]*
<<locked>>
83%
33257
52%
**41
90%
[Vihtavuori N568]*
<<locked>>
91%
37536
59%
**92
90%
Winchester 6.5 StaBALL
<<locked>>
81%
48138
75%
**77
100%
Winchester StaBALL HD
<<locked>>
81%
30545
48%
**00
99%

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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