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Load data for .300 Norma Mag + .308 | 165gr | Barnes MRX BT

Recommended Powder(s): ADI AR 2209, Alliant Reloder-19, Alliant Reloder-26, Norma MRP, Rottweil R 905

.300 Norma Mag + .308 | 165gr | Barnes MRX BT

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.308 | 165gr | Barnes MRX BT
Manufacturer SKU:
30885
Bullet Weight:
165gr | 10.7g
Bullet Diameter:
0.308" | 7.82mm
Bullet Length:
1.320" | 33.5mm
Caliber:
.300 Norma Mag load data
Case Length (l3):
2.490" | 63.2mm
Cartridge Length (C.O.L.):
3.563" | 90.5mm
Seated Depth:
0.247" | 6.3mm
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_B618_C365
Last updated:
2025-01-01
Recommended Twist Rate:
1:12 - 1:10

Load data for 126 loads in caliber .300 Norma Mag with .308 | 165gr | Barnes MRX BT bullet and 63 powders such as ADI AR 2209, Alliant Reloder-19, Alliant Reloder-26, 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>>
92%
57014
89%
**30
99%
ADI AR 2213
<<locked>>
95%
57043
89%
**59
98%
ADI AR 2217
<<locked>>
97%
44266
69%
**07
95%
ADI AR 2225
<<locked>>
97%
39726
62%
**54
97%
Accurate 3100
<<locked>>
95%
56782
89%
**61
100%
Accurate 4350
<<locked>>
86%
57319
90%
**87
100%
Accurate MAGPRO
<<locked>>
95%
56985
89%
**66
97%
Alliant Reloder-16
<<locked>>
88%
57203
90%
**36
100%
Alliant Reloder-19 👍
<<locked>>
92%
57116
89%
**17
99%
Alliant Reloder-22
<<locked>>
95%
56913
89%
**59
99%
Alliant Reloder-23
<<locked>>
97%
57319
90%
**20
100%
Alliant Reloder-25
<<locked>>
97%
50125
79%
**61
100%
Alliant Reloder-26 👍
<<locked>>
92%
57305
90%
**05
100%
Hodgdon H1000
<<locked>>
97%
44266
69%
**07
95%
Hodgdon H4350
<<locked>>
90%
56985
89%
**58
100%
Hodgdon H4831
<<locked>>
97%
55941
88%
**77
97%
Hodgdon H4831 SC
<<locked>>
94%
57145
90%
**04
98%
Hodgdon Hybrid 100V
<<locked>>
90%
57101
89%
**45
100%
Hodgdon LVR
<<locked>>
85%
56971
89%
**94
100%
Hodgdon Retumbo
<<locked>>
97%
39726
62%
**54
97%
Hodgdon Superperformance
<<locked>>
85%
56739
89%
**27
100%
Hodgdon TrailBoss
<<locked>>
97%
35549
56%
**19
100%
IMR 4166 Enduron
<<locked>>
83%
56898
89%
**31
100%
IMR 4350
<<locked>>
88%
57043
89%
**58
100%
IMR 4451 Enduron
<<locked>>
84%
57406
90%
**58
100%
IMR 4831
<<locked>>
91%
56797
89%
**68
100%
IMR 4955 Enduron
<<locked>>
94%
57058
89%
**61
98%
IMR 7828 SSC
<<locked>>
94%
57246
90%
**76
98%
[IMR 8133 Enduron]*
<<locked>>
97%
35679
56%
**53
92%
Lovex S065
<<locked>>
86%
57145
90%
**45
100%
Lovex S070
<<locked>>
87%
57029
89%
**58
100%
Lovex S071
<<locked>>
97%
50749
80%
**63
100%
Norma 204
<<locked>>
88%
57305
90%
**07
99%
Norma 217
<<locked>>
97%
35578
56%
**76
95%
Norma MRP 👍
<<locked>>
93%
56855
89%
**76
100%
Norma URP
<<locked>>
87%
57029
89%
**87
100%
Ramshot Hunter
<<locked>>
88%
57305
90%
**17
100%
Ramshot Magnum
<<locked>>
96%
57334
90%
**43
100%
ReloadSwiss RS 14
<<locked>>
97%
36332
57%
**69
100%
ReloadSwiss RS 60
<<locked>>
84%
57421
90%
**56
100%
ReloadSwiss RS 62
<<locked>>
86%
56782
89%
**97
100%
ReloadSwiss RS 70
<<locked>>
87%
56724
89%
**53
100%
ReloadSwiss RS 76
<<locked>>
97%
49676
78%
**20
100%
[ReloadSwiss RS 80]*
<<locked>>
97%
44541
70%
**76
94%
Rottweil R 904
<<locked>>
91%
57058
89%
**68
98%
Rottweil R 905 👍
<<locked>>
92%
57203
90%
**20
99%
Rottweil R 907
<<locked>>
85%
57363
90%
**58
100%
SNPE Vectan Tubal 7000
<<locked>>
86%
57421
90%
**02
100%
Shooters World Long Rifle
<<locked>>
86%
57145
90%
**45
100%
Somchem S361
<<locked>>
90%
57305
90%
**45
98%
Somchem S365
<<locked>>
89%
57363
90%
**97
100%
Somchem S385
<<locked>>
92%
56884
89%
**74
100%
Vihtavuori N135
<<locked>>
84%
57058
89%
**36
100%
Vihtavuori N150
<<locked>>
87%
57246
90%
**86
100%
Vihtavuori N160
<<locked>>
85%
57246
90%
**54
100%
Vihtavuori N165
<<locked>>
97%
55724
87%
**41
99%
Vihtavuori N550
<<locked>>
85%
57029
89%
**91
100%
Vihtavuori N555
<<locked>>
93%
56782
89%
**07
100%
Vihtavuori N560
<<locked>>
95%
56869
89%
**69
98%
Vihtavuori N565
<<locked>>
97%
52373
82%
**77
97%
[Vihtavuori N568]*
<<locked>>
97%
45876
72%
**82
94%
Winchester 6.5 StaBALL
<<locked>>
86%
57130
90%
**18
100%
Winchester StaBALL HD
<<locked>>
97%
56072
88%
**22
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2209
<<locked>>
81%
39668
62%
**79
95%
[ADI AR 2213]*
<<locked>>
81%
35375
55%
**87
91%
[ADI AR 2217]*
<<locked>>
89%
33823
53%
**41
90%
[ADI AR 2225]*
<<locked>>
86%
28369
44%
**16
90%
Accurate 3100
<<locked>>
81%
35447
56%
**44
97%
Accurate 4350
<<locked>>
81%
47572
75%
**30
100%
[Accurate MAGPRO]*
<<locked>>
84%
37956
59%
**72
90%
Alliant Reloder-16
<<locked>>
81%
45440
71%
**27
100%
Alliant Reloder-19
<<locked>>
81%
39639
62%
**79
95%
[Alliant Reloder-22]*
<<locked>>
81%
35389
55%
**07
93%
Alliant Reloder-23
<<locked>>
81%
34069
53%
**77
99%
[Alliant Reloder-25]*
<<locked>>
81%
29660
46%
**59
94%
Alliant Reloder-26
<<locked>>
81%
37289
58%
**12
98%
[Hodgdon H1000]*
<<locked>>
89%
33823
53%
**41
90%
Hodgdon H4350
<<locked>>
81%
43526
68%
**12
97%
[Hodgdon H4831]*
<<locked>>
82%
34418
54%
**18
90%
[Hodgdon H4831 SC]*
<<locked>>
81%
37086
58%
**90
91%
Hodgdon Hybrid 100V
<<locked>>
81%
42859
67%
**05
100%
Hodgdon LVR
<<locked>>
81%
50024
78%
**72
100%
[Hodgdon Retumbo]*
<<locked>>
86%
28369
44%
**16
90%
Hodgdon Superperformance
<<locked>>
81%
48979
77%
**99
99%
Hodgdon TrailBoss
<<locked>>
81%
28137
44%
**55
100%
IMR 4166 Enduron
<<locked>>
81%
53432
84%
**69
99%
IMR 4350
<<locked>>
81%
45411
71%
**48
98%
IMR 4451 Enduron
<<locked>>
81%
51634
81%
**56
99%
IMR 4831
<<locked>>
81%
41205
65%
**79
99%
[IMR 4955 Enduron]*
<<locked>>
81%
37391
59%
**64
92%
[IMR 7828 SSC]*
<<locked>>
81%
36129
57%
**26
92%
[IMR 8133 Enduron]*
<<locked>>
94%
32996
52%
**74
90%
Lovex S065
<<locked>>
81%
49255
77%
**07
100%
Lovex S070
<<locked>>
81%
47442
74%
**94
99%
[Lovex S071]*
<<locked>>
81%
30545
48%
**13
94%
Norma 204
<<locked>>
81%
45803
72%
**97
97%
[Norma 217]*
<<locked>>
90%
28631
45%
**59
90%
Norma MRP
<<locked>>
81%
37072
58%
**72
96%
Norma URP
<<locked>>
81%
46644
73%
**04
100%
Ramshot Hunter
<<locked>>
81%
45585
71%
**00
99%
[Ramshot Magnum]*
<<locked>>
81%
32779
51%
**25
93%
ReloadSwiss RS 14
<<locked>>
81%
28950
45%
**01
100%
ReloadSwiss RS 60
<<locked>>
81%
51053
80%
**54
100%
ReloadSwiss RS 62
<<locked>>
81%
47485
74%
**36
100%
ReloadSwiss RS 70
<<locked>>
81%
45658
72%
**63
100%
[ReloadSwiss RS 76]*
<<locked>>
82%
28950
45%
**52
90%
[ReloadSwiss RS 80]*
<<locked>>
92%
36521
57%
**76
90%
[Rottweil R 904]*
<<locked>>
81%
40944
64%
**59
94%
Rottweil R 905
<<locked>>
81%
38914
61%
**62
95%
Rottweil R 907
<<locked>>
81%
50386
79%
**36
99%
SNPE Vectan Tubal 7000
<<locked>>
81%
48211
76%
**44
99%
Shooters World Long Rifle
<<locked>>
81%
49255
77%
**07
100%
[Somchem S361]*
<<locked>>
81%
41727
65%
**49
94%
Somchem S365
<<locked>>
81%
43410
68%
**61
100%
Somchem S385
<<locked>>
81%
39566
62%
**40
96%
Vihtavuori N135
<<locked>>
81%
52794
83%
**81
100%
Vihtavuori N150
<<locked>>
81%
46978
74%
**28
100%
Vihtavuori N160
<<locked>>
81%
50169
79%
**43
100%
[Vihtavuori N165]*
<<locked>>
81%
33344
52%
**79
93%
Vihtavuori N550
<<locked>>
81%
50546
79%
**86
100%
Vihtavuori N555
<<locked>>
81%
38189
60%
**53
99%
[Vihtavuori N560]*
<<locked>>
81%
35389
55%
**17
91%
[Vihtavuori N565]*
<<locked>>
84%
33707
53%
**54
90%
[Vihtavuori N568]*
<<locked>>
91%
37782
59%
**92
90%
Winchester 6.5 StaBALL
<<locked>>
81%
47456
74%
**64
100%
Winchester StaBALL HD
<<locked>>
81%
29733
47%
**84
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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