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Load data for .300 Lapua Mag. + .308 | 180gr | Barnes MRX BT

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

.300 Lapua Mag. + .308 | 180gr | Barnes MRX BT

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.308 | 180gr | Barnes MRX BT
Manufacturer SKU:
30888
Bullet Weight:
180gr | 11.7g
Bullet Diameter:
0.308" | 7.82mm
Bullet Length:
1.370" | 34.8mm
Caliber:
.300 Lapua Mag. load data
Case Length (l3):
2.724" | 69.2mm
Cartridge Length (C.O.L.):
3.625" | 92.1mm
Seated Depth:
0.469" | 11.9mm
Shank Seated Depth:
0.344" | 8.7mm
Case Capacity:
100.0 Grains of Water | 6.49 cm³
Primer Size:
Large Rifle Magnum (LRM)
Max. allowed Pressure:
60916 psi | 4200 bar
LID:
LID_B634_C363
Last updated:
2025-01-01
Recommended Twist Rate:
1:12 - 1:10

Load data for 122 loads in caliber .300 Lapua Mag. with .308 | 180gr | Barnes MRX BT bullet and 61 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%
54360
89%
**30
99%
ADI AR 2213
<<locked>>
94%
54186
89%
**63
98%
ADI AR 2217
<<locked>>
97%
43816
72%
**62
96%
ADI AR 2225
<<locked>>
97%
38682
64%
**07
97%
Accurate 3100
<<locked>>
94%
54273
89%
**81
100%
Accurate 4350
<<locked>>
85%
54476
89%
**94
100%
Accurate MAGPRO
<<locked>>
94%
54027
89%
**76
96%
Alliant Reloder-16
<<locked>>
87%
54694
90%
**43
100%
Alliant Reloder-19 👍
<<locked>>
91%
54375
89%
**27
99%
Alliant Reloder-22
<<locked>>
94%
54650
90%
**76
99%
Alliant Reloder-23
<<locked>>
96%
54462
89%
**33
100%
Alliant Reloder-25 👍
<<locked>>
97%
49037
80%
**13
100%
Alliant Reloder-26
<<locked>>
92%
54752
90%
**18
100%
Hodgdon H1000
<<locked>>
97%
43816
72%
**62
96%
Hodgdon H4350
<<locked>>
89%
54244
89%
**71
99%
Hodgdon H4831
<<locked>>
96%
54375
89%
**17
97%
Hodgdon H4831 SC
<<locked>>
93%
54723
90%
**17
98%
Hodgdon Hybrid 100V
<<locked>>
89%
54288
89%
**61
100%
Hodgdon LVR
<<locked>>
84%
54708
90%
**00
100%
Hodgdon Retumbo
<<locked>>
97%
38682
64%
**07
97%
Hodgdon Superperformance
<<locked>>
84%
54578
90%
**49
100%
Hodgdon TrailBoss
<<locked>>
96%
35201
58%
**98
100%
IMR 4350
<<locked>>
87%
54259
89%
**71
99%
IMR 4451 Enduron
<<locked>>
83%
54592
90%
**58
100%
IMR 4831
<<locked>>
91%
54708
90%
**84
100%
IMR 4955 Enduron
<<locked>>
94%
54752
90%
**84
98%
IMR 7828 SSC
<<locked>>
93%
54795
90%
**86
98%
[IMR 8133 Enduron]*
<<locked>>
97%
34838
57%
**08
92%
Lovex S065
<<locked>>
85%
54563
90%
**58
100%
Lovex S070
<<locked>>
86%
54534
90%
**77
100%
Lovex S071
<<locked>>
97%
49763
82%
**08
100%
Norma 204
<<locked>>
87%
54650
90%
**17
99%
Norma 217
<<locked>>
97%
34548
57%
**28
95%
Norma MRP 👍
<<locked>>
92%
54360
89%
**89
100%
Norma URP
<<locked>>
86%
54636
90%
**00
100%
Ramshot Hunter
<<locked>>
87%
54085
89%
**20
100%
Ramshot Magnum
<<locked>>
95%
54186
89%
**56
100%
ReloadSwiss RS 14
<<locked>>
96%
35868
59%
**37
100%
ReloadSwiss RS 60
<<locked>>
83%
54694
90%
**66
100%
ReloadSwiss RS 62
<<locked>>
86%
54752
90%
**20
100%
ReloadSwiss RS 70
<<locked>>
86%
54694
90%
**79
100%
ReloadSwiss RS 76
<<locked>>
97%
48356
79%
**56
100%
[ReloadSwiss RS 80]*
<<locked>>
97%
43410
71%
**25
94%
Rottweil R 904
<<locked>>
90%
54534
90%
**90
98%
Rottweil R 905 👍
<<locked>>
91%
54041
89%
**27
99%
Rottweil R 907
<<locked>>
84%
54534
90%
**61
99%
SNPE Vectan Tubal 7000
<<locked>>
85%
54665
90%
**18
100%
Shooters World Long Rifle
<<locked>>
85%
54563
90%
**58
100%
Somchem S361
<<locked>>
90%
54781
90%
**64
98%
Somchem S365
<<locked>>
88%
54317
89%
**97
100%
Somchem S385
<<locked>>
91%
54215
89%
**87
99%
Vihtavuori N150
<<locked>>
86%
54723
90%
**05
100%
Vihtavuori N160
<<locked>>
84%
54549
90%
**71
100%
Vihtavuori N165
<<locked>>
97%
54665
90%
**90
99%
Vihtavuori N550
<<locked>>
84%
54795
90%
**13
100%
Vihtavuori N555
<<locked>>
92%
54346
89%
**23
100%
Vihtavuori N560
<<locked>>
94%
54795
90%
**99
98%
Vihtavuori N565
<<locked>>
97%
51547
85%
**23
97%
[Vihtavuori N568]*
<<locked>>
97%
44527
73%
**31
94%
Winchester 6.5 StaBALL
<<locked>>
85%
54157
89%
**28
100%
Winchester StaBALL HD
<<locked>>
97%
54505
89%
**54
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2209
<<locked>>
81%
39088
64%
**41
95%
[ADI AR 2213]*
<<locked>>
81%
34824
57%
**49
91%
[ADI AR 2217]*
<<locked>>
88%
32808
54%
**84
90%
[ADI AR 2225]*
<<locked>>
86%
27369
45%
**69
90%
Accurate 3100
<<locked>>
81%
34766
57%
**03
97%
Accurate 4350
<<locked>>
81%
46731
77%
**66
100%
[Accurate MAGPRO]*
<<locked>>
83%
36608
60%
**21
90%
Alliant Reloder-16
<<locked>>
81%
44860
74%
**76
100%
Alliant Reloder-19
<<locked>>
81%
38986
64%
**25
95%
[Alliant Reloder-22]*
<<locked>>
81%
34780
57%
**69
94%
Alliant Reloder-23
<<locked>>
81%
33402
55%
**36
99%
Alliant Reloder-25
<<locked>>
81%
29109
48%
**38
95%
Alliant Reloder-26
<<locked>>
81%
36695
60%
**71
99%
[Hodgdon H1000]*
<<locked>>
88%
32808
54%
**84
90%
Hodgdon H4350
<<locked>>
81%
42859
70%
**64
98%
[Hodgdon H4831]*
<<locked>>
81%
33257
55%
**74
90%
[Hodgdon H4831 SC]*
<<locked>>
81%
36506
60%
**52
92%
Hodgdon Hybrid 100V
<<locked>>
81%
42337
69%
**64
100%
Hodgdon LVR
<<locked>>
81%
49110
81%
**15
100%
[Hodgdon Retumbo]*
<<locked>>
86%
27369
45%
**69
90%
Hodgdon Superperformance
<<locked>>
81%
48298
79%
**51
99%
Hodgdon TrailBoss
<<locked>>
81%
28210
46%
**44
100%
IMR 4350
<<locked>>
81%
44918
74%
**07
98%
IMR 4451 Enduron
<<locked>>
81%
51039
84%
**95
99%
IMR 4831
<<locked>>
81%
40582
67%
**35
99%
[IMR 4955 Enduron]*
<<locked>>
81%
36738
60%
**30
92%
[IMR 7828 SSC]*
<<locked>>
81%
35636
58%
**89
92%
[IMR 8133 Enduron]*
<<locked>>
94%
31589
52%
**16
90%
Lovex S065
<<locked>>
81%
48646
80%
**56
100%
Lovex S070
<<locked>>
81%
46876
77%
**40
99%
Lovex S071
<<locked>>
81%
29834
49%
**79
95%
Norma 204
<<locked>>
81%
45049
74%
**40
97%
[Norma 217]*
<<locked>>
90%
27818
46%
**18
90%
Norma MRP
<<locked>>
81%
36477
60%
**41
96%
Norma URP
<<locked>>
81%
46021
76%
**62
100%
Ramshot Hunter
<<locked>>
81%
44933
74%
**56
99%
[Ramshot Magnum]*
<<locked>>
81%
32169
53%
**93
93%
ReloadSwiss RS 14
<<locked>>
81%
28877
47%
**90
100%
ReloadSwiss RS 60
<<locked>>
81%
49922
82%
**87
100%
ReloadSwiss RS 62
<<locked>>
81%
46862
77%
**89
100%
ReloadSwiss RS 70
<<locked>>
81%
44889
74%
**08
100%
[ReloadSwiss RS 76]*
<<locked>>
82%
28007
46%
**11
90%
[ReloadSwiss RS 80]*
<<locked>>
91%
35259
58%
**18
90%
Rottweil R 904
<<locked>>
81%
40379
66%
**18
95%
Rottweil R 905
<<locked>>
81%
38290
63%
**12
95%
Rottweil R 907
<<locked>>
81%
49705
82%
**76
99%
SNPE Vectan Tubal 7000
<<locked>>
81%
47558
78%
**97
99%
Shooters World Long Rifle
<<locked>>
81%
48646
80%
**56
100%
[Somchem S361]*
<<locked>>
81%
41118
68%
**05
94%
Somchem S365
<<locked>>
81%
42815
70%
**10
100%
Somchem S385
<<locked>>
81%
38928
64%
**98
96%
Vihtavuori N150
<<locked>>
81%
46122
76%
**71
100%
Vihtavuori N160
<<locked>>
81%
49588
81%
**89
100%
[Vihtavuori N165]*
<<locked>>
81%
32866
54%
**48
94%
Vihtavuori N550
<<locked>>
81%
49966
82%
**31
100%
Vihtavuori N555
<<locked>>
81%
37579
62%
**12
99%
[Vihtavuori N560]*
<<locked>>
81%
34824
57%
**72
91%
[Vihtavuori N565]*
<<locked>>
83%
32401
53%
**00
90%
[Vihtavuori N568]*
<<locked>>
91%
36724
60%
**48
90%
Winchester 6.5 StaBALL
<<locked>>
81%
46499
76%
**17
100%
Winchester StaBALL HD
<<locked>>
81%
28892
47%
**46
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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