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

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Recommended Powder(s):

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

Load Specifications

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 Lapua Mag.
Case Length (l3):
2.724" | 69.2mm
Cartridge Length (C.O.L.):
3.625" | 92.1mm
Seated Depth:
0.419" | 10.6mm
Shank Seated Depth:
0.294" | 7.5mm
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_B618_C363
Recommended Twist Rate:
1:12 - 1:10

>> Use the Personalized Load Calculator further below to adjust input parameters. 

Load data for 128 loads in caliber .300 Lapua Mag. with .308 | 165gr | Barnes MRX BT bullet and 64 powder(s). 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".

    • A load must fulfill certain criteria to be listed in the default view below - see here.

    • Our load data might deviate from other sources - see the most common reasons here

    • All loads are based on the bullet and case dimensions shown under "Load Specifications" - see here what to do if you deviate.

    • You can set your specifications in the "Personalized Load Calculator".

    • Go to the bottom of the "My Account " page to set the measure system (imperial vs. metric) 

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    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.

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>>
93%
54505
89%
**54
98%
ADI AR 2213
<<locked>>
96%
54201
89%
**77
97%
[ADI AR 2217]*
<<locked>>
97%
40988
67%
**85
93%
ADI AR 2225
<<locked>>
97%
36506
60%
**36
95%
Accurate 2700
<<locked>>
83%
54244
89%
**17
99%
Accurate 3100
<<locked>>
96%
54230
89%
**89
100%
Accurate 4350
<<locked>>
87%
54404
89%
**12
100%
Accurate MAGPRO
<<locked>>
96%
54346
89%
**84
95%
Alliant Reloder-16
<<locked>>
89%
54607
90%
**68
100%
Alliant Reloder-17
<<locked>>
84%
54462
89%
**61
100%
Alliant Reloder-19
<<locked>>
93%
54462
89%
**48
98%
Alliant Reloder-22
<<locked>>
96%
54433
89%
**81
98%
Alliant Reloder-23 👍
<<locked>>
97%
53229
87%
**35
100%
Alliant Reloder-25
<<locked>>
97%
45774
75%
**56
99%
Alliant Reloder-26 👍
<<locked>>
93%
54317
89%
**36
100%
[Hodgdon H1000]*
<<locked>>
97%
40988
67%
**85
93%
Hodgdon H414
<<locked>>
83%
54215
89%
**31
99%
Hodgdon H4350
<<locked>>
90%
54230
89%
**86
99%
Hodgdon H4831
<<locked>>
97%
52141
86%
**79
96%
Hodgdon H4831 SC
<<locked>>
95%
54810
90%
**22
97%
Hodgdon Hybrid 100V
<<locked>>
91%
54752
90%
**86
100%
Hodgdon LVR
<<locked>>
86%
54433
89%
**15
100%
Hodgdon Retumbo
<<locked>>
97%
36506
60%
**36
95%
Hodgdon Superperformance
<<locked>>
86%
54476
89%
**71
99%
Hodgdon TrailBoss
<<locked>>
96%
35027
58%
**73
100%
IMR 4166 Enduron
<<locked>>
84%
54534
90%
**49
99%
IMR 4350
<<locked>>
89%
54708
90%
**89
99%
IMR 4451 Enduron
<<locked>>
85%
54737
90%
**72
99%
IMR 4831 👍
<<locked>>
92%
54665
90%
**99
100%
IMR 4955 Enduron
<<locked>>
95%
54592
90%
**82
97%
IMR 7828 SSC
<<locked>>
95%
54650
90%
**97
97%
Lovex S065
<<locked>>
87%
54795
90%
**76
100%
Lovex S070
<<locked>>
88%
54752
90%
**92
99%
Lovex S071
<<locked>>
97%
46746
77%
**61
99%
Norma 204
<<locked>>
88%
54302
89%
**18
98%
[Norma 217]*
<<locked>>
97%
32358
53%
**54
92%
Norma MRP
<<locked>>
94%
54331
89%
**07
99%
Norma URP
<<locked>>
88%
54491
89%
**25
100%
Ramshot Hunter
<<locked>>
88%
54215
89%
**38
100%
Ramshot Magnum
<<locked>>
97%
54244
89%
**61
99%
ReloadSwiss RS 14
<<locked>>
96%
35665
59%
**16
100%
ReloadSwiss RS 60
<<locked>>
85%
54404
89%
**87
100%
ReloadSwiss RS 62
<<locked>>
87%
54404
89%
**41
100%
ReloadSwiss RS 70
<<locked>>
88%
54578
90%
**94
100%
ReloadSwiss RS 76
<<locked>>
97%
44788
74%
**79
98%
Rottweil R 904
<<locked>>
92%
54288
89%
**92
97%
Rottweil R 905
<<locked>>
93%
54201
89%
**38
98%
Rottweil R 907
<<locked>>
85%
54520
90%
**66
99%
SNPE Vectan Tubal 7000
<<locked>>
87%
54752
90%
**33
99%
Shooters World Long Rifle
<<locked>>
87%
54795
90%
**76
100%
Somchem S361
<<locked>>
91%
54447
89%
**56
97%
Somchem S365
<<locked>>
90%
54331
89%
**25
100%
Somchem S385
<<locked>>
93%
54259
89%
**99
99%
Vihtavuori N135
<<locked>>
84%
54650
90%
**74
100%
Vihtavuori N150
<<locked>>
88%
54694
90%
**20
100%
Vihtavuori N160
<<locked>>
86%
54549
90%
**82
100%
Vihtavuori N165
<<locked>>
97%
51648
85%
**43
98%
Vihtavuori N550
<<locked>>
85%
54636
90%
**18
100%
Vihtavuori N555 👍
<<locked>>
94%
54491
89%
**45
100%
Vihtavuori N560
<<locked>>
96%
54462
89%
**07
97%
Vihtavuori N565
<<locked>>
97%
47863
79%
**66
96%
Winchester 6.5 StaBALL
<<locked>>
87%
54230
89%
**53
100%
Winchester 760
<<locked>>
83%
54215
89%
**31
99%
Winchester StaBALL HD 👍
<<locked>>
97%
49559
81%
**07
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
[ADI AR 2209]*
<<locked>>
81%
36985
61%
**84
93%
[ADI AR 2213]*
<<locked>>
83%
35462
58%
**61
90%
[ADI AR 2217]*
<<locked>>
92%
35404
58%
**44
90%
[ADI AR 2225]*
<<locked>>
90%
29675
49%
**30
90%
Accurate 2700
<<locked>>
81%
50662
83%
**54
98%
Accurate 3100
<<locked>>
81%
32576
53%
**49
95%
Accurate 4350
<<locked>>
81%
44005
72%
**31
99%
[Accurate MAGPRO]*
<<locked>>
87%
39581
65%
**92
90%
Alliant Reloder-16
<<locked>>
81%
42235
69%
**31
99%
Alliant Reloder-17
<<locked>>
81%
48747
80%
**69
100%
[Alliant Reloder-19]*
<<locked>>
81%
36811
60%
**80
93%
[Alliant Reloder-22]*
<<locked>>
81%
32547
53%
**95
91%
Alliant Reloder-23
<<locked>>
81%
31314
51%
**79
98%
[Alliant Reloder-25]*
<<locked>>
81%
27528
45%
**64
92%
Alliant Reloder-26
<<locked>>
81%
33982
56%
**03
97%
[Hodgdon H1000]*
<<locked>>
92%
35404
58%
**44
90%
Hodgdon H414
<<locked>>
81%
49937
82%
**53
99%
Hodgdon H4350
<<locked>>
81%
40509
67%
**17
96%
[Hodgdon H4831]*
<<locked>>
85%
35795
59%
**28
90%
[Hodgdon H4831 SC]*
<<locked>>
82%
35795
59%
**28
90%
Hodgdon Hybrid 100V
<<locked>>
81%
39668
65%
**13
100%
Hodgdon LVR
<<locked>>
81%
46659
77%
**77
99%
[Hodgdon Retumbo]*
<<locked>>
90%
29675
49%
**30
90%
Hodgdon Superperformance
<<locked>>
81%
45281
74%
**00
98%
Hodgdon TrailBoss
<<locked>>
81%
28137
46%
**19
100%
IMR 4166 Enduron
<<locked>>
81%
50415
83%
**77
99%
IMR 4350
<<locked>>
81%
42815
70%
**66
97%
IMR 4451 Enduron
<<locked>>
81%
48805
80%
**74
98%
IMR 4831
<<locked>>
81%
38101
63%
**87
98%
[IMR 4955 Enduron]*
<<locked>>
81%
35027
58%
**79
90%
[IMR 7828 SSC]*
<<locked>>
82%
35230
58%
**71
90%
Lovex S065
<<locked>>
81%
46122
76%
**08
99%
Lovex S070
<<locked>>
81%
44411
73%
**99
98%
[Lovex S071]*
<<locked>>
81%
28108
46%
**21
92%
Norma 204
<<locked>>
81%
42685
70%
**99
95%
[Norma 217]*
<<locked>>
94%
29704
49%
**66
90%
[Norma MRP]*
<<locked>>
81%
33852
56%
**61
94%
Norma URP
<<locked>>
81%
43352
71%
**18
99%
Ramshot Hunter
<<locked>>
81%
42235
69%
**02
98%
[Ramshot Magnum]*
<<locked>>
81%
30052
49%
**13
90%
ReloadSwiss RS 14
<<locked>>
81%
28732
47%
**62
100%
ReloadSwiss RS 60
<<locked>>
81%
46949
77%
**59
100%
ReloadSwiss RS 62
<<locked>>
81%
43947
72%
**51
99%
ReloadSwiss RS 70
<<locked>>
81%
42264
69%
**64
99%
[ReloadSwiss RS 76]*
<<locked>>
86%
30255
50%
**75
90%
[Rottweil R 904]*
<<locked>>
81%
38406
63%
**71
92%
[Rottweil R 905]*
<<locked>>
81%
36129
59%
**64
93%
Rottweil R 907
<<locked>>
81%
47326
78%
**35
98%
SNPE Vectan Tubal 7000
<<locked>>
81%
45310
74%
**56
98%
Shooters World Long Rifle
<<locked>>
81%
46122
76%
**08
99%
[Somchem S361]*
<<locked>>
81%
39015
64%
**54
92%
Somchem S365
<<locked>>
81%
40089
66%
**76
100%
Somchem S385
<<locked>>
81%
36796
60%
**54
95%
Vihtavuori N135
<<locked>>
81%
49690
82%
**99
100%
Vihtavuori N150
<<locked>>
81%
44092
72%
**49
100%
Vihtavuori N160
<<locked>>
81%
46644
77%
**48
100%
[Vihtavuori N165]*
<<locked>>
81%
30705
50%
**80
91%
Vihtavuori N550
<<locked>>
81%
47427
78%
**94
100%
Vihtavuori N555
<<locked>>
81%
35012
57%
**64
98%
[Vihtavuori N560]*
<<locked>>
84%
35650
59%
**97
90%
[Vihtavuori N565]*
<<locked>>
87%
34606
57%
**61
90%
Winchester 6.5 StaBALL
<<locked>>
81%
43947
72%
**76
100%
Winchester 760
<<locked>>
81%
49937
82%
**53
99%
Winchester StaBALL HD
<<locked>>
81%
26034
43%
**62
97%

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.

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