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

Recommended Powder(s): Alliant Reloder-26, IMR 4831, Ramshot Hunter, ReloadSwiss RS 70, Vihtavuori N555

7 mm PRC + .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 PRC load data
Case Length (l3):
2.280" | 57.9mm
Cartridge Length (C.O.L.):
3.290" | 83.6mm
Seated Depth:
0.370" | 9.4mm
Shank Seated Depth:
0.250" | 6.4mm
Case Capacity:
82.0 Grains of Water | 5.32 cm³
Primer Size:
Large Rifle (LR)
Max. allowed Pressure:
64977 psi | 4480 bar
LID:
LID_B2626_C1049
Last updated:
2025-01-01
Recommended Twist Rate:
1:10 - 1:8

Load data for 154 loads in caliber 7 mm PRC with .284 | 139gr | Hornady GMX bullet and 77 powders such as Alliant Reloder-26, IMR 4831, Ramshot Hunter, ReloadSwiss RS 70, Vihtavuori N555. 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>>
85%
58392
90%
**28
100%
ADI AR 2209
<<locked>>
96%
58233
90%
**30
99%
ADI AR 2213
<<locked>>
97%
54143
83%
**91
97%
[ADI AR 2217]*
<<locked>>
97%
39407
61%
**62
92%
[ADI AR 2225]*
<<locked>>
97%
34766
54%
**00
94%
Accurate 2700
<<locked>>
86%
58015
89%
**89
99%
Accurate 3100
<<locked>>
97%
53287
82%
**95
100%
Accurate 4064
<<locked>>
83%
58349
90%
**92
100%
Accurate 4350
<<locked>>
90%
57928
89%
**87
100%
Accurate MAGPRO
<<locked>>
97%
52301
80%
**71
95%
Alliant Reloder- TS 15.5
<<locked>>
84%
57914
89%
**35
100%
Alliant Reloder-16
<<locked>>
92%
57972
89%
**33
100%
Alliant Reloder-17
<<locked>>
87%
58131
89%
**40
100%
Alliant Reloder-19
<<locked>>
96%
58392
90%
**20
99%
Alliant Reloder-22
<<locked>>
97%
53534
82%
**84
98%
Alliant Reloder-23
<<locked>>
97%
50212
77%
**02
100%
Alliant Reloder-25
<<locked>>
97%
43700
67%
**30
99%
Alliant Reloder-26 👍
<<locked>>
96%
57551
89%
**02
100%
[Hodgdon H1000]*
<<locked>>
97%
39407
61%
**62
92%
Hodgdon H380
<<locked>>
84%
58131
89%
**54
100%
Hodgdon H414
<<locked>>
86%
57696
89%
**10
100%
Hodgdon H4350
<<locked>>
93%
57798
89%
**58
99%
Hodgdon H4831
<<locked>>
97%
49661
76%
**43
95%
Hodgdon H4831 SC
<<locked>>
97%
56681
87%
**71
97%
Hodgdon Hybrid 100V
<<locked>>
94%
57711
89%
**41
100%
Hodgdon LVR
<<locked>>
89%
57827
89%
**87
100%
[Hodgdon Retumbo]*
<<locked>>
97%
34766
54%
**00
94%
Hodgdon Superperformance
<<locked>>
89%
57841
89%
**43
99%
Hodgdon VARGET
<<locked>>
85%
57841
89%
**25
100%
Hodgdon TrailBoss
<<locked>>
96%
34954
54%
**77
100%
IMR 4064
<<locked>>
86%
57624
89%
**12
100%
IMR 4166 Enduron
<<locked>>
87%
57783
89%
**15
99%
IMR 4350
<<locked>>
92%
58291
90%
**58
99%
IMR 4451 Enduron
<<locked>>
88%
58030
89%
**51
99%
IMR 4831 👍
<<locked>>
96%
58378
90%
**74
100%
IMR 4955 Enduron
<<locked>>
97%
55071
85%
**12
97%
IMR 7828 SSC
<<locked>>
97%
55085
85%
**27
97%
Lovex S062
<<locked>>
84%
58450
90%
**18
100%
Lovex S065
<<locked>>
89%
57986
89%
**38
100%
Lovex S070
<<locked>>
91%
58117
89%
**54
100%
Lovex S071
<<locked>>
97%
44498
68%
**35
98%
Norma 203B
<<locked>>
83%
58247
90%
**54
100%
Norma 204
<<locked>>
92%
58450
90%
**04
99%
Norma MRP
<<locked>>
97%
56898
88%
**76
100%
Norma URP
<<locked>>
91%
57885
89%
**87
100%
Ramshot Hunter 👍
<<locked>>
92%
57522
89%
**07
100%
Ramshot Magnum
<<locked>>
97%
51503
79%
**31
98%
ReloadSwiss RS 14
<<locked>>
96%
35737
55%
**23
100%
ReloadSwiss RS 50
<<locked>>
84%
57769
89%
**31
100%
ReloadSwiss RS 60
<<locked>>
88%
58450
90%
**69
100%
ReloadSwiss RS 62
<<locked>>
90%
57783
89%
**07
100%
ReloadSwiss RS 70 👍
<<locked>>
91%
58160
90%
**73
100%
ReloadSwiss RS 76
<<locked>>
97%
42598
66%
**49
97%
Rottweil R 903
<<locked>>
86%
57696
89%
**25
100%
Rottweil R 904
<<locked>>
95%
58276
90%
**71
98%
Rottweil R 905
<<locked>>
97%
58233
90%
**23
99%
Rottweil R 907
<<locked>>
89%
58407
90%
**48
99%
SNPE Vectan SP 11
<<locked>>
85%
58247
90%
**74
100%
SNPE Vectan Tubal 5000
<<locked>>
86%
57769
89%
**97
100%
SNPE Vectan Tubal 7000
<<locked>>
90%
58131
89%
**99
100%
Shooters World Long Rifle
<<locked>>
89%
57986
89%
**38
100%
Shooters World Precision
<<locked>>
84%
58450
90%
**18
100%
Somchem S355
<<locked>>
86%
58421
90%
**35
100%
Somchem S361
<<locked>>
94%
58088
89%
**35
97%
Somchem S365
<<locked>>
93%
58117
89%
**04
100%
Somchem S385
<<locked>>
96%
58088
89%
**77
99%
Vihtavuori N135
<<locked>>
87%
58102
89%
**43
100%
Vihtavuori N150
<<locked>>
91%
58131
89%
**86
100%
Vihtavuori N160
<<locked>>
89%
58160
90%
**61
100%
Vihtavuori N165
<<locked>>
97%
49864
77%
**33
98%
Vihtavuori N550
<<locked>>
88%
57682
89%
**94
100%
Vihtavuori N555 👍
<<locked>>
97%
56173
86%
**94
100%
Vihtavuori N560
<<locked>>
97%
53417
82%
**07
96%
[Vihtavuori N565]*
<<locked>>
97%
45295
70%
**27
94%
Winchester 6.5 StaBALL
<<locked>>
90%
58175
90%
**22
100%
Winchester 760
<<locked>>
86%
57696
89%
**10
100%
Winchester StaBALL HD
<<locked>>
97%
45803
70%
**74
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2208
<<locked>>
81%
50705
78%
**13
100%
[ADI AR 2209]*
<<locked>>
81%
35433
55%
**61
92%
[ADI AR 2213]*
<<locked>>
85%
36042
55%
**94
90%
[ADI AR 2217]*
<<locked>>
94%
36085
56%
**74
90%
[ADI AR 2225]*
<<locked>>
92%
29892
46%
**49
90%
Accurate 2700
<<locked>>
81%
49023
75%
**41
98%
[Accurate 3100]*
<<locked>>
81%
31154
48%
**23
94%
Accurate 4064
<<locked>>
81%
54491
84%
**40
100%
Accurate 4350
<<locked>>
81%
42105
65%
**08
99%
[Accurate MAGPRO]*
<<locked>>
89%
40292
62%
**18
90%
Alliant Reloder- TS 15.5
<<locked>>
81%
51590
79%
**43
100%
Alliant Reloder-16
<<locked>>
81%
40625
63%
**22
99%
Alliant Reloder-17
<<locked>>
81%
46470
72%
**49
100%
[Alliant Reloder-19]*
<<locked>>
81%
35346
54%
**54
92%
[Alliant Reloder-22]*
<<locked>>
81%
31560
49%
**89
90%
Alliant Reloder-23
<<locked>>
81%
29950
46%
**56
97%
[Alliant Reloder-25]*
<<locked>>
81%
26295
40%
**31
90%
Alliant Reloder-26
<<locked>>
81%
32416
50%
**80
96%
[Hodgdon H1000]*
<<locked>>
94%
36085
56%
**74
90%
Hodgdon H380
<<locked>>
81%
52721
81%
**66
100%
Hodgdon H414
<<locked>>
81%
47950
74%
**36
98%
Hodgdon H4350
<<locked>>
81%
39160
60%
**00
95%
[Hodgdon H4831]*
<<locked>>
87%
36680
56%
**64
90%
[Hodgdon H4831 SC]*
<<locked>>
84%
36680
56%
**64
90%
Hodgdon Hybrid 100V
<<locked>>
81%
38174
59%
**00
99%
Hodgdon LVR
<<locked>>
81%
44599
69%
**54
99%
[Hodgdon Retumbo]*
<<locked>>
92%
29892
46%
**49
90%
Hodgdon Superperformance
<<locked>>
81%
43004
66%
**64
97%
Hodgdon VARGET
<<locked>>
81%
50328
77%
**10
100%
Hodgdon TrailBoss
<<locked>>
81%
27833
43%
**16
100%
IMR 4064
<<locked>>
81%
49995
77%
**87
100%
IMR 4166 Enduron
<<locked>>
81%
48979
75%
**61
98%
IMR 4350
<<locked>>
81%
41133
63%
**40
96%
IMR 4451 Enduron
<<locked>>
81%
47297
73%
**61
98%
IMR 4831
<<locked>>
81%
36622
56%
**74
98%
[IMR 4955 Enduron]*
<<locked>>
83%
36129
56%
**21
90%
[IMR 7828 SSC]*
<<locked>>
84%
35563
55%
**94
90%
Lovex S062
<<locked>>
81%
53737
83%
**40
100%
Lovex S065
<<locked>>
81%
44556
69%
**95
99%
Lovex S070
<<locked>>
81%
42757
66%
**79
97%
[Lovex S071]*
<<locked>>
81%
26701
41%
**95
91%
Norma 203B
<<locked>>
81%
54331
84%
**92
100%
[Norma 204]*
<<locked>>
81%
40698
63%
**66
94%
[Norma MRP]*
<<locked>>
81%
32445
50%
**48
93%
Norma URP
<<locked>>
81%
41553
64%
**99
99%
Ramshot Hunter
<<locked>>
81%
40306
62%
**85
97%
[Ramshot Magnum]*
<<locked>>
83%
30864
48%
**52
90%
ReloadSwiss RS 14
<<locked>>
81%
28529
44%
**62
100%
ReloadSwiss RS 50
<<locked>>
81%
52460
81%
**49
99%
ReloadSwiss RS 60
<<locked>>
81%
44831
69%
**36
100%
ReloadSwiss RS 62
<<locked>>
81%
42061
65%
**35
99%
ReloadSwiss RS 70
<<locked>>
81%
40393
62%
**35
98%
[ReloadSwiss RS 76]*
<<locked>>
87%
30777
47%
**98
90%
Rottweil R 903
<<locked>>
81%
49240
76%
**97
100%
[Rottweil R 904]*
<<locked>>
81%
36956
57%
**44
91%
[Rottweil R 905]*
<<locked>>
81%
34548
53%
**41
92%
Rottweil R 907
<<locked>>
81%
45934
71%
**28
97%
SNPE Vectan SP 11
<<locked>>
81%
50531
78%
**56
100%
SNPE Vectan Tubal 5000
<<locked>>
81%
50038
77%
**89
100%
SNPE Vectan Tubal 7000
<<locked>>
81%
43830
67%
**43
97%
Shooters World Long Rifle
<<locked>>
81%
44556
69%
**95
99%
Shooters World Precision
<<locked>>
81%
53737
83%
**40
100%
Somchem S355
<<locked>>
81%
49342
76%
**90
100%
[Somchem S361]*
<<locked>>
81%
37449
58%
**28
91%
Somchem S365
<<locked>>
81%
38130
59%
**53
100%
[Somchem S385]*
<<locked>>
81%
35201
54%
**28
94%
Vihtavuori N135
<<locked>>
81%
48240
74%
**99
100%
Vihtavuori N150
<<locked>>
81%
42366
65%
**30
100%
Vihtavuori N160
<<locked>>
81%
44846
69%
**35
99%
[Vihtavuori N165]*
<<locked>>
81%
29486
45%
**64
90%
Vihtavuori N550
<<locked>>
81%
45353
70%
**71
99%
Vihtavuori N555
<<locked>>
81%
33533
52%
**38
97%
[Vihtavuori N560]*
<<locked>>
86%
36680
56%
**33
90%
[Vihtavuori N565]*
<<locked>>
89%
35302
54%
**97
90%
Winchester 6.5 StaBALL
<<locked>>
81%
42177
65%
**66
100%
Winchester 760
<<locked>>
81%
47950
74%
**36
98%
Winchester StaBALL HD
<<locked>>
81%
24018
37%
**26
96%

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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