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Load data for 7 mm Weath. Mag. + .284 | 139gr | Hornady GMX

Recommended Powder(s): Alliant Reloder-26, IMR 4831, Ramshot Hunter, Vihtavuori N555, Winchester StaBALL HD

7 mm Weath. Mag. + .284 | 139gr | Hornady GMX

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.284 | 139gr | Hornady GMX
Manufacturer SKU:
28270
Bullet Weight:
139gr | 9.0g
Bullet Diameter:
0.284" | 7.21mm
Bullet Length:
1.380" | 35.1mm
Caliber:
7 mm Weath. Mag. load data
Case Length (l3):
2.549" | 64.7mm
Cartridge Length (C.O.L.):
3.310" | 84.1mm
Seated Depth:
0.619" | 15.7mm
Shank Seated Depth:
0.499" | 12.7mm
Case Capacity:
87.0 Grains of Water | 5.65 cm³
Primer Size:
Large Rifle Magnum (LRM)
Max. allowed Pressure:
63817 psi | 4400 bar
LID:
LID_B2626_C1070
Last updated:
2025-02-02
Recommended Twist Rate:
1:10 - 1:8

Load data for 146 loads in caliber 7 mm Weath. Mag. with .284 | 139gr | Hornady GMX bullet and 73 powders such as Alliant Reloder-26, IMR 4831, Ramshot Hunter, Vihtavuori N555, Winchester StaBALL HD. 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 2208
<<locked>>
85%
57305
90%
**28
100%
ADI AR 2209
<<locked>>
95%
56927
89%
**07
98%
ADI AR 2213
<<locked>>
97%
54433
85%
**00
97%
[ADI AR 2217]*
<<locked>>
97%
39755
62%
**76
92%
[ADI AR 2225]*
<<locked>>
97%
35534
56%
**36
94%
Accurate 2700
<<locked>>
85%
57232
90%
**86
99%
Accurate 3100
<<locked>>
97%
54737
86%
**15
100%
Accurate 4350
<<locked>>
89%
56884
89%
**74
100%
Accurate MAGPRO
<<locked>>
97%
53693
84%
**00
95%
Alliant Reloder- TS 15.5
<<locked>>
84%
56884
89%
**18
100%
Alliant Reloder-16
<<locked>>
91%
57319
90%
**30
100%
Alliant Reloder-17
<<locked>>
86%
57421
90%
**33
100%
Alliant Reloder-19
<<locked>>
95%
57116
89%
**07
99%
Alliant Reloder-22
<<locked>>
97%
54041
85%
**97
98%
Alliant Reloder-23
<<locked>>
97%
51488
81%
**31
100%
Alliant Reloder-25
<<locked>>
97%
44295
69%
**46
99%
Alliant Reloder-26 👍
<<locked>>
95%
56507
89%
**99
100%
[Hodgdon H1000]*
<<locked>>
97%
39755
62%
**76
92%
Hodgdon H380
<<locked>>
83%
57000
89%
**48
100%
Hodgdon H414
<<locked>>
86%
56869
89%
**97
99%
Hodgdon H4350
<<locked>>
92%
56826
89%
**41
99%
Hodgdon H4831
<<locked>>
97%
50183
79%
**59
95%
Hodgdon H4831 SC
<<locked>>
97%
57305
90%
**87
97%
Hodgdon Hybrid 100V
<<locked>>
93%
56826
89%
**38
100%
Hodgdon LVR
<<locked>>
88%
57029
89%
**84
100%
[Hodgdon Retumbo]*
<<locked>>
97%
35534
56%
**36
94%
Hodgdon Superperformance
<<locked>>
88%
57087
89%
**33
99%
Hodgdon VARGET
<<locked>>
85%
56898
89%
**15
100%
Hodgdon TrailBoss
<<locked>>
96%
35027
55%
**83
100%
IMR 4064
<<locked>>
85%
57116
89%
**12
100%
IMR 4166 Enduron
<<locked>>
86%
57203
90%
**18
99%
IMR 4350
<<locked>>
91%
57305
90%
**54
99%
IMR 4451 Enduron
<<locked>>
87%
57000
89%
**35
99%
IMR 4831 👍
<<locked>>
94%
56855
89%
**61
100%
IMR 4955 Enduron
<<locked>>
97%
55405
87%
**25
97%
IMR 7828 SSC
<<locked>>
97%
56550
89%
**46
98%
Lovex S065
<<locked>>
88%
57000
89%
**22
100%
Lovex S070
<<locked>>
90%
57232
90%
**51
100%
Lovex S071
<<locked>>
97%
45237
71%
**54
99%
Norma 204
<<locked>>
90%
56666
89%
**81
98%
Norma MRP
<<locked>>
96%
56971
89%
**79
100%
Norma URP
<<locked>>
90%
57043
89%
**84
100%
Ramshot Hunter 👍
<<locked>>
91%
57276
90%
**04
100%
Ramshot Magnum
<<locked>>
97%
53098
83%
**61
99%
ReloadSwiss RS 14
<<locked>>
96%
35795
56%
**26
100%
ReloadSwiss RS 50
<<locked>>
83%
56826
89%
**28
100%
ReloadSwiss RS 60
<<locked>>
87%
57014
89%
**46
100%
ReloadSwiss RS 62
<<locked>>
89%
56840
89%
**00
100%
ReloadSwiss RS 70
<<locked>>
90%
56594
89%
**46
100%
ReloadSwiss RS 76
<<locked>>
97%
43337
68%
**66
98%
Rottweil R 903
<<locked>>
85%
56855
89%
**22
100%
Rottweil R 904
<<locked>>
94%
57334
90%
**64
98%
Rottweil R 905
<<locked>>
95%
56637
89%
**97
99%
Rottweil R 907
<<locked>>
88%
56985
89%
**31
99%
SNPE Vectan SP 11
<<locked>>
84%
57188
90%
**58
100%
SNPE Vectan Tubal 5000
<<locked>>
85%
56927
89%
**90
100%
SNPE Vectan Tubal 7000
<<locked>>
89%
56942
89%
**79
99%
Shooters World Long Rifle
<<locked>>
88%
57000
89%
**22
100%
Somchem S355
<<locked>>
85%
56623
89%
**12
100%
Somchem S361
<<locked>>
93%
57421
90%
**28
97%
Somchem S365
<<locked>>
92%
57217
90%
**87
100%
Somchem S385
<<locked>>
95%
56695
89%
**61
99%
Vihtavuori N135
<<locked>>
86%
56826
89%
**30
100%
Vihtavuori N150
<<locked>>
90%
57000
89%
**79
100%
Vihtavuori N160
<<locked>>
88%
57290
90%
**45
100%
Vihtavuori N165
<<locked>>
97%
50212
79%
**43
98%
Vihtavuori N550
<<locked>>
87%
56826
89%
**81
100%
Vihtavuori N555 👍
<<locked>>
96%
56637
89%
**04
100%
Vihtavuori N560
<<locked>>
97%
53925
84%
**17
97%
Vihtavuori N565
<<locked>>
97%
46514
73%
**59
95%
Winchester 6.5 StaBALL
<<locked>>
89%
56666
89%
**02
100%
Winchester 760
<<locked>>
86%
56869
89%
**97
99%
Winchester StaBALL HD 👍
<<locked>>
97%
47311
74%
**94
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2208
<<locked>>
81%
51387
81%
**23
100%
[ADI AR 2209]*
<<locked>>
81%
35969
56%
**77
92%
[ADI AR 2213]*
<<locked>>
84%
35969
56%
**94
90%
[ADI AR 2217]*
<<locked>>
94%
36085
57%
**87
90%
[ADI AR 2225]*
<<locked>>
92%
30240
47%
**56
90%
Accurate 2700
<<locked>>
81%
50038
78%
**64
98%
[Accurate 3100]*
<<locked>>
81%
31720
50%
**39
94%
Accurate 4350
<<locked>>
81%
42815
67%
**22
99%
[Accurate MAGPRO]*
<<locked>>
89%
40219
63%
**25
90%
Alliant Reloder- TS 15.5
<<locked>>
81%
52330
82%
**53
100%
Alliant Reloder-16
<<locked>>
81%
41075
64%
**35
99%
Alliant Reloder-17
<<locked>>
81%
47384
74%
**69
100%
[Alliant Reloder-19]*
<<locked>>
81%
35882
56%
**80
93%
[Alliant Reloder-22]*
<<locked>>
81%
31575
49%
**89
90%
Alliant Reloder-23
<<locked>>
81%
30400
48%
**69
98%
[Alliant Reloder-25]*
<<locked>>
81%
26716
42%
**51
91%
Alliant Reloder-26
<<locked>>
81%
32866
51%
**00
96%
[Hodgdon H1000]*
<<locked>>
94%
36085
57%
**87
90%
Hodgdon H380
<<locked>>
81%
53374
84%
**86
100%
Hodgdon H414
<<locked>>
81%
48675
76%
**59
98%
Hodgdon H4350
<<locked>>
81%
39639
62%
**13
95%
[Hodgdon H4831]*
<<locked>>
87%
36637
57%
**67
90%
[Hodgdon H4831 SC]*
<<locked>>
84%
36637
57%
**67
90%
Hodgdon Hybrid 100V
<<locked>>
81%
38754
61%
**23
100%
Hodgdon LVR
<<locked>>
81%
45266
71%
**77
99%
[Hodgdon Retumbo]*
<<locked>>
92%
30240
47%
**56
90%
Hodgdon Superperformance
<<locked>>
81%
43947
69%
**90
97%
Hodgdon VARGET
<<locked>>
81%
51024
80%
**20
100%
Hodgdon TrailBoss
<<locked>>
81%
27934
44%
**22
100%
IMR 4064
<<locked>>
81%
50372
79%
**97
100%
IMR 4166 Enduron
<<locked>>
81%
49182
77%
**67
98%
IMR 4350
<<locked>>
81%
41713
65%
**62
96%
IMR 4451 Enduron
<<locked>>
81%
47921
75%
**71
98%
IMR 4831
<<locked>>
81%
37072
58%
**87
98%
[IMR 4955 Enduron]*
<<locked>>
82%
35679
56%
**08
90%
[IMR 7828 SSC]*
<<locked>>
83%
35491
56%
**94
90%
Lovex S065
<<locked>>
81%
45194
71%
**18
99%
Lovex S070
<<locked>>
81%
43381
68%
**92
97%
[Lovex S071]*
<<locked>>
81%
27311
43%
**11
92%
Norma 204
<<locked>>
81%
41365
65%
**92
95%
[Norma MRP]*
<<locked>>
81%
33214
52%
**67
93%
Norma URP
<<locked>>
81%
42221
66%
**15
99%
Ramshot Hunter
<<locked>>
81%
40886
64%
**95
97%
[Ramshot Magnum]*
<<locked>>
82%
30139
47%
**36
90%
ReloadSwiss RS 14
<<locked>>
81%
28703
45%
**68
100%
ReloadSwiss RS 50
<<locked>>
81%
53040
83%
**69
99%
ReloadSwiss RS 60
<<locked>>
81%
45818
72%
**59
100%
ReloadSwiss RS 62
<<locked>>
81%
42656
67%
**44
99%
ReloadSwiss RS 70
<<locked>>
81%
41365
65%
**64
99%
[ReloadSwiss RS 76]*
<<locked>>
87%
30501
48%
**98
90%
Rottweil R 903
<<locked>>
81%
49980
78%
**10
100%
[Rottweil R 904]*
<<locked>>
81%
37420
59%
**67
92%
[Rottweil R 905]*
<<locked>>
81%
34925
55%
**54
92%
Rottweil R 907
<<locked>>
81%
46195
72%
**35
97%
SNPE Vectan SP 11
<<locked>>
81%
51184
80%
**66
100%
SNPE Vectan Tubal 5000
<<locked>>
81%
50749
80%
**99
100%
SNPE Vectan Tubal 7000
<<locked>>
81%
44498
70%
**66
98%
Shooters World Long Rifle
<<locked>>
81%
45194
71%
**18
99%
Somchem S355
<<locked>>
81%
50067
78%
**13
100%
[Somchem S361]*
<<locked>>
81%
38290
60%
**54
91%
Somchem S365
<<locked>>
81%
38725
61%
**72
100%
[Somchem S385]*
<<locked>>
81%
35752
56%
**41
94%
Vihtavuori N135
<<locked>>
81%
48588
76%
**08
100%
Vihtavuori N150
<<locked>>
81%
42975
67%
**43
100%
Vihtavuori N160
<<locked>>
81%
45469
71%
**44
99%
[Vihtavuori N165]*
<<locked>>
81%
29979
47%
**80
90%
Vihtavuori N550
<<locked>>
81%
46108
72%
**94
99%
Vihtavuori N555
<<locked>>
81%
33968
53%
**57
98%
[Vihtavuori N560]*
<<locked>>
85%
36622
57%
**43
90%
[Vihtavuori N565]*
<<locked>>
89%
35273
55%
**03
90%
Winchester 6.5 StaBALL
<<locked>>
81%
42844
67%
**85
100%
Winchester 760
<<locked>>
81%
48675
76%
**59
98%
Winchester StaBALL HD
<<locked>>
81%
24685
39%
**52
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.

<<locked>>... you need to buy an access license to unlock the data

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