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Load data for .300 Lapua Mag. + .308 | 150gr | Hornady GMX

Recommended Powder(s):

.300 Lapua Mag. + .308 | 150gr | Hornady GMX

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.308 | 150gr | Hornady GMX
Manufacturer SKU:
30370
Bullet Weight:
150gr | 9.7g
Bullet Diameter:
0.308" | 7.82mm
Bullet Length:
1.420" | 36.1mm
Caliber:
.300 Lapua Mag. load data
Case Length (l3):
2.724" | 69.2mm
Cartridge Length (C.O.L.):
3.625" | 92.1mm
Seated Depth:
0.519" | 13.2mm
Shank Seated Depth:
0.359" | 9.1mm
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_B2668_C363
Last updated:
2025-01-01
Recommended Twist Rate:
1:11 - 1:10

Load data for 138 loads in caliber .300 Lapua Mag. with .308 | 150gr | Hornady GMX bullet and 69 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".

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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 2208
<<locked>>
84%
54520
89%
**77
100%
ADI AR 2209
<<locked>>
95%
54592
90%
**69
97%
ADI AR 2213
<<locked>>
97%
51053
84%
**17
95%
Accurate 2700
<<locked>>
85%
54505
89%
**28
98%
Accurate 3100
<<locked>>
97%
50604
83%
**45
99%
Accurate 4350
<<locked>>
90%
54041
89%
**33
100%
[Accurate MAGPRO]*
<<locked>>
97%
49893
82%
**17
93%
Alliant Reloder- TS 15.5
<<locked>>
84%
54360
89%
**91
100%
Alliant Reloder-16 👍
<<locked>>
92%
54592
90%
**86
100%
Alliant Reloder-17
<<locked>>
87%
54520
89%
**99
100%
Alliant Reloder-19
<<locked>>
96%
54244
89%
**59
97%
Alliant Reloder-22
<<locked>>
97%
49980
82%
**20
97%
Alliant Reloder-23
<<locked>>
97%
47645
78%
**64
100%
Alliant Reloder-25
<<locked>>
97%
41727
68%
**72
98%
Alliant Reloder-26
<<locked>>
97%
54491
89%
**61
100%
Hodgdon H380
<<locked>>
84%
54694
90%
**10
100%
Hodgdon H414
<<locked>>
86%
54766
90%
**66
99%
Hodgdon H4350
<<locked>>
93%
54650
90%
**00
98%
[Hodgdon H4831]*
<<locked>>
97%
47543
78%
**92
93%
Hodgdon H4831 SC
<<locked>>
97%
53432
88%
**04
95%
Hodgdon Hybrid 100V
<<locked>>
93%
54172
89%
**00
100%
Hodgdon LVR
<<locked>>
88%
54244
89%
**36
100%
Hodgdon Superperformance
<<locked>>
89%
54404
89%
**86
98%
Hodgdon VARGET
<<locked>>
85%
54520
89%
**77
100%
Hodgdon TrailBoss
<<locked>>
96%
34853
57%
**49
100%
IMR 4064
<<locked>>
85%
54650
90%
**81
100%
IMR 4166 Enduron
<<locked>>
86%
54795
90%
**74
99%
IMR 4350
<<locked>>
91%
54694
90%
**00
98%
IMR 4451 Enduron
<<locked>>
87%
54447
89%
**87
99%
IMR 4831
<<locked>>
95%
54752
90%
**27
100%
IMR 4955 Enduron
<<locked>>
97%
52547
86%
**54
95%
IMR 7828 SSC
<<locked>>
97%
52373
86%
**59
95%
Lovex S065
<<locked>>
89%
54592
90%
**87
99%
Lovex S070
<<locked>>
90%
54505
89%
**04
99%
Lovex S071
<<locked>>
97%
41959
69%
**77
97%
Norma 204
<<locked>>
91%
54259
89%
**33
97%
Norma MRP
<<locked>>
97%
52982
87%
**02
98%
Norma URP
<<locked>>
91%
54636
90%
**50
100%
Ramshot Hunter 👍
<<locked>>
91%
54708
90%
**69
99%
Ramshot Magnum
<<locked>>
97%
48660
80%
**71
97%
ReloadSwiss RS 14
<<locked>>
96%
35389
58%
**95
100%
ReloadSwiss RS 50
<<locked>>
83%
54650
90%
**87
99%
ReloadSwiss RS 60
<<locked>>
88%
54636
90%
**28
100%
ReloadSwiss RS 62 👍
<<locked>>
90%
54592
90%
**63
100%
ReloadSwiss RS 70 👍
<<locked>>
91%
54244
89%
**12
100%
ReloadSwiss RS 76
<<locked>>
97%
40292
66%
**69
95%
Rottweil R 903
<<locked>>
86%
54795
90%
**00
100%
Rottweil R 904
<<locked>>
94%
54520
89%
**07
96%
Rottweil R 905
<<locked>>
96%
54534
90%
**56
97%
Rottweil R 907
<<locked>>
88%
54099
89%
**74
98%
SNPE Vectan SP 11
<<locked>>
85%
54636
90%
**30
100%
SNPE Vectan Tubal 5000
<<locked>>
85%
54491
89%
**66
100%
SNPE Vectan Tubal 7000
<<locked>>
89%
54549
90%
**35
99%
Shooters World Long Rifle
<<locked>>
89%
54592
90%
**87
99%
Somchem S355
<<locked>>
86%
54549
90%
**87
100%
Somchem S361
<<locked>>
93%
54505
89%
**64
95%
Somchem S365
<<locked>>
93%
54331
89%
**53
100%
Somchem S385
<<locked>>
96%
54766
90%
**20
98%
Vihtavuori N135
<<locked>>
87%
54447
89%
**02
100%
Vihtavuori N150
<<locked>>
90%
54447
89%
**38
100%
Vihtavuori N160
<<locked>>
88%
54795
90%
**07
100%
Vihtavuori N165
<<locked>>
97%
46949
77%
**72
96%
Vihtavuori N550
<<locked>>
88%
54549
90%
**46
100%
Vihtavuori N555 👍
<<locked>>
97%
53476
88%
**59
100%
[Vihtavuori N560]*
<<locked>>
97%
50676
83%
**43
94%
[Vihtavuori N565]*
<<locked>>
97%
42685
70%
**63
92%
Winchester 6.5 StaBALL
<<locked>>
90%
54824
90%
**77
100%
Winchester 760
<<locked>>
86%
54766
90%
**66
99%
Winchester StaBALL HD
<<locked>>
97%
42540
70%
**17
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2208
<<locked>>
81%
49066
81%
**82
100%
[ADI AR 2209]*
<<locked>>
82%
34795
57%
**26
90%
[ADI AR 2213]*
<<locked>>
89%
38885
64%
**48
90%
Accurate 2700
<<locked>>
81%
47398
78%
**97
96%
[Accurate 3100]*
<<locked>>
81%
29283
48%
**49
91%
Accurate 4350
<<locked>>
81%
39769
65%
**48
98%
[Accurate MAGPRO]*
<<locked>>
93%
43511
71%
**72
90%
Alliant Reloder- TS 15.5
<<locked>>
81%
49342
81%
**09
100%
Alliant Reloder-16
<<locked>>
81%
38725
64%
**64
98%
Alliant Reloder-17
<<locked>>
81%
44237
73%
**09
100%
[Alliant Reloder-19]*
<<locked>>
81%
34055
56%
**07
90%
[Alliant Reloder-22]*
<<locked>>
85%
34171
56%
**46
90%
Alliant Reloder-23
<<locked>>
81%
28398
47%
**89
95%
[Alliant Reloder-25]*
<<locked>>
85%
28253
46%
**69
90%
[Alliant Reloder-26]*
<<locked>>
81%
30414
50%
**00
93%
Hodgdon H380
<<locked>>
81%
50299
83%
**25
99%
Hodgdon H414
<<locked>>
81%
45643
75%
**82
97%
[Hodgdon H4350]*
<<locked>>
81%
37405
61%
**40
93%
[Hodgdon H4831]*
<<locked>>
92%
39972
66%
**31
90%
[Hodgdon H4831 SC]*
<<locked>>
88%
39856
65%
**22
90%
Hodgdon Hybrid 100V
<<locked>>
81%
36187
59%
**49
98%
Hodgdon LVR
<<locked>>
81%
42380
70%
**04
98%
Hodgdon Superperformance
<<locked>>
81%
40973
67%
**07
95%
Hodgdon VARGET
<<locked>>
81%
48356
79%
**66
100%
Hodgdon TrailBoss
<<locked>>
81%
27789
46%
**88
100%
IMR 4064
<<locked>>
81%
47921
79%
**49
100%
IMR 4166 Enduron
<<locked>>
81%
47007
77%
**17
97%
[IMR 4350]*
<<locked>>
81%
39262
64%
**89
94%
IMR 4451 Enduron
<<locked>>
81%
45252
74%
**10
97%
IMR 4831
<<locked>>
81%
34708
57%
**13
96%
[IMR 4955 Enduron]*
<<locked>>
87%
38595
63%
**62
90%
[IMR 7828 SSC]*
<<locked>>
88%
38595
63%
**51
90%
Lovex S065
<<locked>>
81%
42801
70%
**54
97%
Lovex S070
<<locked>>
81%
40959
67%
**35
96%
[Lovex S071]*
<<locked>>
83%
27383
45%
**90
90%
[Norma 204]*
<<locked>>
81%
38943
64%
**15
92%
[Norma MRP]*
<<locked>>
81%
31241
51%
**90
90%
Norma URP
<<locked>>
81%
39697
65%
**48
98%
Ramshot Hunter
<<locked>>
81%
38479
63%
**35
96%
[Ramshot Magnum]*
<<locked>>
86%
32851
54%
**87
90%
ReloadSwiss RS 14
<<locked>>
81%
28369
47%
**34
100%
ReloadSwiss RS 50
<<locked>>
81%
50299
83%
**09
98%
ReloadSwiss RS 60
<<locked>>
81%
42598
70%
**92
100%
ReloadSwiss RS 62
<<locked>>
81%
39552
65%
**67
97%
ReloadSwiss RS 70
<<locked>>
81%
38522
63%
**77
97%
[ReloadSwiss RS 76]*
<<locked>>
91%
33214
55%
**53
90%
Rottweil R 903
<<locked>>
81%
47239
78%
**59
100%
[Rottweil R 904]*
<<locked>>
82%
36869
61%
**33
90%
[Rottweil R 905]*
<<locked>>
82%
33518
55%
**90
90%
Rottweil R 907
<<locked>>
81%
43729
72%
**77
96%
SNPE Vectan SP 11
<<locked>>
81%
48341
79%
**12
100%
SNPE Vectan Tubal 5000
<<locked>>
81%
48341
79%
**64
100%
SNPE Vectan Tubal 7000
<<locked>>
81%
41916
69%
**89
96%
Shooters World Long Rifle
<<locked>>
81%
42801
70%
**54
97%
Somchem S355
<<locked>>
81%
47340
78%
**63
100%
[Somchem S361]*
<<locked>>
84%
39363
65%
**56
90%
Somchem S365
<<locked>>
81%
35882
59%
**95
99%
[Somchem S385]*
<<locked>>
81%
33417
55%
**64
91%
Vihtavuori N135
<<locked>>
81%
45788
75%
**61
100%
Vihtavuori N150
<<locked>>
81%
40669
67%
**92
100%
Vihtavuori N160
<<locked>>
81%
42815
70%
**81
98%
[Vihtavuori N165]*
<<locked>>
86%
32547
53%
**35
90%
Vihtavuori N550
<<locked>>
81%
43337
71%
**27
98%
Vihtavuori N555
<<locked>>
81%
31372
51%
**77
96%
[Vihtavuori N560]*
<<locked>>
89%
39320
65%
**90
90%
[Vihtavuori N565]*
<<locked>>
94%
38101
63%
**51
90%
Winchester 6.5 StaBALL
<<locked>>
81%
40176
66%
**12
99%
Winchester 760
<<locked>>
81%
45643
75%
**82
97%
[Winchester StaBALL HD]*
<<locked>>
81%
25193
41%
**36
93%

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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