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Load data for .338 Lapua Mag. + .338 | 185gr | Hornady GMX

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Recommended Powder(s): Alliant Reloder-16, Norma URP, Ramshot Hunter, ReloadSwiss RS 62, ReloadSwiss RS 70

.338 Lapua Mag. + .338 | 185gr | Hornady GMX

Load Specifications

Bullet:
.338 | 185gr | Hornady GMX
Manufacturer SKU:
33270
Bullet Weight:
185gr | 12.0g
Bullet Diameter:
0.338" | 8.59mm
Bullet Length:
1.380" | 35.1mm
Caliber:
.338 Lapua Mag.
Case Length (l3):
2.724" | 69.2mm
Cartridge Length (C.O.L.):
3.626" | 92.1mm
Seated Depth:
0.478" | 12.1mm
Shank Seated Depth:
0.338" | 8.6mm
Case Capacity:
114.0 Grains of Water | 7.40 cm³
Primer Size:
Large Rifle Magnum (LRM)
Max. allowed Pressure:
60916 psi | 4200 bar
LID:
LID_B2744_C454
Recommended Twist Rate:
1:13 - 1:11

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

Load data for 142 loads in caliber .338 Lapua Mag. with .338 | 185gr | Hornady GMX bullet and 71 powders such as Alliant Reloder-16, Norma URP, Ramshot Hunter, ReloadSwiss RS 62, ReloadSwiss RS 70. 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 2208
<<locked>>
85%
54418
89%
**92
100%
ADI AR 2209
<<locked>>
96%
54462
89%
**77
97%
ADI AR 2213
<<locked>>
97%
50473
83%
**22
95%
Accurate 2700
<<locked>>
86%
54346
89%
**36
98%
Accurate 3100
<<locked>>
97%
49545
81%
**36
99%
Accurate 4350
<<locked>>
91%
54723
90%
**54
100%
[Accurate MAGPRO]*
<<locked>>
97%
48385
79%
**95
92%
Alliant Reloder- TS 15.5
<<locked>>
85%
54665
90%
**09
100%
Alliant Reloder-16 👍
<<locked>>
92%
54737
90%
**10
100%
Alliant Reloder-17
<<locked>>
87%
54433
89%
**07
100%
Alliant Reloder-19
<<locked>>
96%
54418
89%
**64
97%
Alliant Reloder-22
<<locked>>
97%
49458
81%
**18
96%
Alliant Reloder-23
<<locked>>
97%
46630
77%
**69
100%
Alliant Reloder-25
<<locked>>
97%
40799
67%
**74
98%
Alliant Reloder-26
<<locked>>
97%
53548
88%
**56
100%
Hodgdon H380
<<locked>>
84%
54621
90%
**22
100%
Hodgdon H414
<<locked>>
87%
54172
89%
**61
99%
Hodgdon H4350
<<locked>>
94%
54578
90%
**12
98%
[Hodgdon H4831]*
<<locked>>
97%
46224
76%
**90
93%
Hodgdon H4831 SC
<<locked>>
97%
52968
87%
**12
95%
Hodgdon Hybrid 100V
<<locked>>
94%
54462
89%
**18
100%
Hodgdon LVR
<<locked>>
89%
54201
89%
**51
100%
Hodgdon Superperformance
<<locked>>
89%
54708
90%
**04
99%
Hodgdon VARGET
<<locked>>
85%
54418
89%
**92
100%
Hodgdon TrailBoss
<<locked>>
96%
34650
57%
**93
100%
IMR 4064
<<locked>>
86%
54766
90%
**86
100%
IMR 4166 Enduron
<<locked>>
86%
54752
90%
**82
99%
IMR 4350
<<locked>>
92%
54273
89%
**12
98%
IMR 4451 Enduron
<<locked>>
88%
54694
90%
**99
99%
IMR 4831
<<locked>>
96%
54679
90%
**41
100%
IMR 4955 Enduron
<<locked>>
97%
51982
85%
**63
95%
IMR 7828 SSC
<<locked>>
97%
51924
85%
**68
95%
Lovex S062
<<locked>>
83%
54810
90%
**82
100%
Lovex S065
<<locked>>
89%
54404
89%
**92
99%
Lovex S070
<<locked>>
91%
54824
90%
**22
99%
Lovex S071
<<locked>>
97%
41292
68%
**85
97%
Norma 204
<<locked>>
91%
54404
89%
**51
97%
Norma MRP
<<locked>>
97%
52359
86%
**07
98%
Norma URP 👍
<<locked>>
91%
54621
90%
**58
100%
Ramshot Hunter 👍
<<locked>>
92%
54549
90%
**68
99%
Ramshot Magnum
<<locked>>
97%
47935
79%
**69
97%
ReloadSwiss RS 14
<<locked>>
97%
35549
58%
**42
100%
ReloadSwiss RS 50
<<locked>>
84%
54360
89%
**92
99%
ReloadSwiss RS 60
<<locked>>
89%
54708
90%
**33
100%
ReloadSwiss RS 62 👍
<<locked>>
91%
54404
89%
**77
100%
ReloadSwiss RS 70 👍
<<locked>>
91%
54433
89%
**23
100%
ReloadSwiss RS 76
<<locked>>
97%
39682
65%
**67
95%
Rottweil R 903
<<locked>>
86%
54781
90%
**09
100%
Rottweil R 904
<<locked>>
95%
54186
89%
**09
96%
Rottweil R 905
<<locked>>
97%
54360
89%
**61
97%
Rottweil R 907
<<locked>>
88%
54331
89%
**99
98%
SNPE Vectan SP 11
<<locked>>
85%
54346
89%
**38
100%
SNPE Vectan Tubal 5000
<<locked>>
86%
54650
90%
**77
100%
SNPE Vectan Tubal 7000
<<locked>>
89%
54244
89%
**40
99%
Shooters World Long Rifle
<<locked>>
89%
54404
89%
**92
99%
Shooters World Precision
<<locked>>
83%
54810
90%
**82
100%
Somchem S355
<<locked>>
86%
54462
89%
**02
100%
Somchem S361
<<locked>>
94%
54607
90%
**82
95%
Somchem S365
<<locked>>
94%
54491
89%
**71
100%
Somchem S385
<<locked>>
96%
54360
89%
**35
98%
Vihtavuori N135
<<locked>>
87%
54273
89%
**17
100%
Vihtavuori N150
<<locked>>
91%
54230
89%
**59
100%
Vihtavuori N160
<<locked>>
89%
54143
89%
**12
100%
Vihtavuori N165
<<locked>>
97%
46195
76%
**77
96%
Vihtavuori N550
<<locked>>
89%
54810
90%
**61
100%
Vihtavuori N555
<<locked>>
97%
52286
86%
**48
100%
[Vihtavuori N560]*
<<locked>>
97%
49676
82%
**41
94%
[Vihtavuori N565]*
<<locked>>
97%
42076
69%
**74
92%
Winchester 6.5 StaBALL
<<locked>>
90%
54476
89%
**92
100%
Winchester 760
<<locked>>
87%
54172
89%
**61
99%
Winchester StaBALL HD
<<locked>>
97%
41118
68%
**05
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2208
<<locked>>
81%
48153
79%
**87
100%
[ADI AR 2209]*
<<locked>>
82%
34055
56%
**31
90%
[ADI AR 2213]*
<<locked>>
89%
38711
64%
**62
90%
Accurate 2700
<<locked>>
81%
46630
77%
**05
96%
[Accurate 3100]*
<<locked>>
81%
28790
47%
**77
91%
Accurate 4350
<<locked>>
81%
39247
64%
**62
98%
[Accurate MAGPRO]*
<<locked>>
93%
42902
70%
**84
90%
Alliant Reloder- TS 15.5
<<locked>>
81%
48834
80%
**07
100%
Alliant Reloder-16
<<locked>>
81%
37927
62%
**76
98%
Alliant Reloder-17
<<locked>>
81%
43221
71%
**10
100%
[Alliant Reloder-19]*
<<locked>>
82%
33852
56%
**25
90%
[Alliant Reloder-22]*
<<locked>>
85%
33692
55%
**54
90%
Alliant Reloder-23
<<locked>>
81%
27876
46%
**07
95%
[Alliant Reloder-25]*
<<locked>>
85%
27847
46%
**97
90%
[Alliant Reloder-26]*
<<locked>>
81%
29776
49%
**12
93%
Hodgdon H380
<<locked>>
81%
49603
81%
**40
99%
Hodgdon H414
<<locked>>
81%
44817
74%
**90
97%
[Hodgdon H4350]*
<<locked>>
81%
36796
60%
**54
93%
[Hodgdon H4831]*
<<locked>>
92%
39407
65%
**36
90%
[Hodgdon H4831 SC]*
<<locked>>
88%
39610
65%
**46
90%
Hodgdon Hybrid 100V
<<locked>>
81%
35418
58%
**61
98%
Hodgdon LVR
<<locked>>
81%
41872
69%
**15
98%
Hodgdon Superperformance
<<locked>>
81%
40161
66%
**12
95%
Hodgdon VARGET
<<locked>>
81%
47572
78%
**74
100%
Hodgdon TrailBoss
<<locked>>
81%
27630
45%
**36
100%
IMR 4064
<<locked>>
81%
47282
78%
**64
100%
IMR 4166 Enduron
<<locked>>
81%
46470
76%
**31
97%
[IMR 4350]*
<<locked>>
81%
38609
63%
**03
94%
IMR 4451 Enduron
<<locked>>
81%
44744
73%
**18
97%
IMR 4831
<<locked>>
81%
34040
56%
**21
96%
[IMR 4955 Enduron]*
<<locked>>
87%
38261
63%
**80
90%
[IMR 7828 SSC]*
<<locked>>
88%
38334
63%
**62
90%
Lovex S062
<<locked>>
81%
50821
83%
**13
100%
Lovex S065
<<locked>>
81%
42134
69%
**59
97%
Lovex S070
<<locked>>
81%
40161
66%
**30
96%
[Lovex S071]*
<<locked>>
84%
26992
44%
**21
90%
[Norma 204]*
<<locked>>
81%
38116
63%
**23
92%
[Norma MRP]*
<<locked>>
82%
30864
51%
**02
90%
Norma URP
<<locked>>
81%
38725
64%
**49
98%
Ramshot Hunter
<<locked>>
81%
37623
62%
**30
95%
[Ramshot Magnum]*
<<locked>>
86%
32474
53%
**05
90%
ReloadSwiss RS 14
<<locked>>
81%
28108
46%
**75
100%
ReloadSwiss RS 50
<<locked>>
81%
49588
81%
**10
98%
ReloadSwiss RS 60
<<locked>>
81%
41785
69%
**97
100%
ReloadSwiss RS 62
<<locked>>
81%
39001
64%
**76
97%
ReloadSwiss RS 70
<<locked>>
81%
38000
62%
**85
97%
[ReloadSwiss RS 76]*
<<locked>>
92%
32808
54%
**64
90%
Rottweil R 903
<<locked>>
81%
46151
76%
**58
100%
[Rottweil R 904]*
<<locked>>
83%
36564
60%
**54
90%
[Rottweil R 905]*
<<locked>>
82%
33025
54%
**12
90%
Rottweil R 907
<<locked>>
81%
43250
71%
**89
96%
SNPE Vectan SP 11
<<locked>>
81%
47500
78%
**20
100%
SNPE Vectan Tubal 5000
<<locked>>
81%
47674
78%
**79
100%
SNPE Vectan Tubal 7000
<<locked>>
81%
41365
68%
**07
96%
Shooters World Long Rifle
<<locked>>
81%
42134
69%
**59
97%
Shooters World Precision
<<locked>>
81%
50821
83%
**13
100%
Somchem S355
<<locked>>
81%
46601
77%
**61
100%
[Somchem S361]*
<<locked>>
84%
38769
64%
**71
90%
Somchem S365
<<locked>>
81%
35143
58%
**10
99%
[Somchem S385]*
<<locked>>
81%
32663
54%
**75
91%
Vihtavuori N135
<<locked>>
81%
45295
74%
**76
100%
Vihtavuori N150
<<locked>>
81%
39726
65%
**97
100%
Vihtavuori N160
<<locked>>
81%
41930
69%
**85
98%
[Vihtavuori N165]*
<<locked>>
86%
31894
52%
**46
90%
Vihtavuori N550
<<locked>>
81%
42670
70%
**41
98%
Vihtavuori N555
<<locked>>
81%
30632
50%
**79
95%
[Vihtavuori N560]*
<<locked>>
90%
38986
64%
**08
90%
[Vihtavuori N565]*
<<locked>>
94%
37782
62%
**62
90%
Winchester 6.5 StaBALL
<<locked>>
81%
39436
65%
**23
99%
Winchester 760
<<locked>>
81%
44817
74%
**90
97%
[Winchester StaBALL HD]*
<<locked>>
81%
24700
41%
**44
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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