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Load data for .300 H & H Mag. + .308 | 180gr | Hornady GMX

Recommended Powder(s):

.300 H & H Mag. + .308 | 180gr | Hornady GMX

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.308 | 180gr | Hornady GMX
Manufacturer SKU:
30193
Bullet Weight:
180gr | 11.7g
Bullet Diameter:
0.308" | 7.82mm
Bullet Length:
<<locked>>
Caliber:
.300 H & H Mag. load data
Case Length (l3):
2.850" | 72.4mm
Cartridge Length (C.O.L.):
<<locked>>
Seated Depth:
<<locked>>
Shank Seated Depth:
<<locked>>
Case Capacity:
85.9 Grains of Water | 5.58 cm³
Primer Size:
Large Rifle Magnum (LRM)
Max. allowed Pressure:
62366 psi | 4300 bar
LID:
LID_B2701_C357
Last updated:
2026-03-25
Recommended Twist Rate:
1:10 - 1:9

Load data for 198 loads in caliber .300 H & H Mag. with .308 | 180gr | Hornady GMX bullet and 99 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".

  • No data yet

  • 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 2206H
<<locked>>
84%
56115
90%
**82
100%
ADI AR 2208
<<locked>>
89%
55492
89%
**62
100%
ADI AR 2209
<<locked>>
97%
49124
79%
**43
96%
[ADI AR 2213]*
<<locked>>
97%
44266
71%
**67
93%
Accurate 2700
<<locked>>
90%
55274
89%
**20
98%
Accurate 3100
<<locked>>
97%
42409
68%
**05
97%
Accurate 4064
<<locked>>
88%
55912
90%
**53
100%
Accurate 4350
<<locked>>
96%
56115
90%
**44
100%
Alliant Power Pro 2000-MR
<<locked>>
86%
55898
90%
**04
100%
Alliant Reloder- TS 15.5
<<locked>>
89%
55332
89%
**76
100%
Alliant Reloder-15
<<locked>>
87%
55970
90%
**02
100%
Alliant Reloder-16 👍
<<locked>>
97%
56086
90%
**87
100%
Alliant Reloder-17
<<locked>>
92%
55245
89%
**81
100%
Alliant Reloder-19
<<locked>>
97%
48878
78%
**46
96%
Alliant Reloder-22
<<locked>>
97%
42525
68%
**71
95%
Alliant Reloder-23
<<locked>>
97%
40292
65%
**35
100%
Alliant Reloder-25
<<locked>>
97%
34925
56%
**13
95%
Alliant Reloder-26
<<locked>>
97%
44860
72%
**89
99%
Baschieri & Pellagri 107
<<locked>>
84%
55666
89%
**95
100%
[Bofors RP15]*
<<locked>>
97%
38885
62%
**85
93%
Bofors RP3
<<locked>>
88%
55927
90%
**89
100%
Bofors RP5
<<locked>>
97%
42525
68%
**71
95%
Bofors RP7
<<locked>>
93%
55840
90%
**76
98%
Hodgdon CFE223
<<locked>>
87%
55405
89%
**28
100%
Hodgdon H380
<<locked>>
88%
55724
89%
**99
100%
Hodgdon H414 👍
<<locked>>
91%
56072
90%
**61
99%
Hodgdon H4350
<<locked>>
97%
54099
87%
**72
98%
[Hodgdon H4831 SC]*
<<locked>>
97%
46441
74%
**67
93%
Hodgdon H4895
<<locked>>
83%
55738
89%
**85
100%
Hodgdon Hybrid 100V
<<locked>>
97%
51967
83%
**46
100%
Hodgdon LVR
<<locked>>
93%
55419
89%
**31
100%
Hodgdon Superperformance
<<locked>>
94%
55637
89%
**81
99%
Hodgdon VARGET
<<locked>>
89%
55782
89%
**72
100%
Hodgdon TrailBoss
<<locked>>
96%
34243
55%
**73
100%
IMR 3031
<<locked>>
86%
56101
90%
**56
100%
IMR 4064
<<locked>>
89%
55317
89%
**53
100%
IMR 4166 Enduron
<<locked>>
90%
55825
90%
**46
99%
IMR 4350
<<locked>>
96%
55796
89%
**92
98%
IMR 4451 Enduron
<<locked>>
91%
55898
90%
**76
99%
IMR 4831
<<locked>>
97%
49066
79%
**20
100%
IMR 4895
<<locked>>
86%
55709
89%
**02
100%
[IMR 4955 Enduron]*
<<locked>>
97%
45832
73%
**25
93%
[IMR 7828 SSC]*
<<locked>>
97%
45223
73%
**07
93%
Lovex D073.6
<<locked>>
83%
55143
88%
**46
100%
Lovex S060
<<locked>>
84%
55434
89%
**13
100%
Lovex S062
<<locked>>
87%
55709
89%
**56
100%
Lovex S065
<<locked>>
94%
55579
89%
**72
100%
Lovex S070
<<locked>>
95%
55970
90%
**95
99%
Lovex S071
<<locked>>
97%
34882
56%
**48
95%
Norma 201
<<locked>>
84%
55622
89%
**46
100%
Norma 202
<<locked>>
84%
56115
90%
**36
100%
Norma 203B
<<locked>>
87%
55883
90%
**02
100%
Norma 204
<<locked>>
96%
55361
89%
**28
97%
Norma MRP
<<locked>>
97%
44773
72%
**43
97%
Norma URP
<<locked>>
96%
55317
89%
**31
100%
Ramshot Big Game
<<locked>>
86%
55564
89%
**12
100%
[Ramshot Grand]*
<<locked>>
97%
47297
76%
**56
94%
Ramshot Hunter
<<locked>>
96%
55651
89%
**58
99%
[Ramshot Magnum]*
<<locked>>
97%
40669
65%
**08
94%
ReloadSwiss RS 14
<<locked>>
96%
34548
55%
**06
100%
ReloadSwiss RS 50
<<locked>>
88%
55521
89%
**76
99%
ReloadSwiss RS 52
<<locked>>
84%
55796
89%
**58
100%
ReloadSwiss RS 60
<<locked>>
90%
55303
89%
**87
100%
ReloadSwiss RS 62 👍
<<locked>>
95%
55825
90%
**64
100%
ReloadSwiss RS 70 👍
<<locked>>
96%
55463
89%
**07
100%
Rottweil R 902
<<locked>>
86%
55448
89%
**33
100%
Rottweil R 903
<<locked>>
90%
55840
90%
**85
100%
Rottweil R 904
<<locked>>
97%
51053
82%
**26
95%
Rottweil R 905
<<locked>>
97%
46934
75%
**17
96%
Rottweil R 907
<<locked>>
93%
55840
90%
**76
98%
SNPE Vectan SP 11
<<locked>>
90%
56043
90%
**22
100%
SNPE Vectan SP 7
<<locked>>
83%
56086
90%
**69
100%
SNPE Vectan SP 9
<<locked>>
85%
55825
90%
**76
100%
SNPE Vectan Tubal 3000
<<locked>>
84%
56086
90%
**64
100%
SNPE Vectan Tubal 5000
<<locked>>
89%
55724
89%
**57
100%
SNPE Vectan Tubal 7000
<<locked>>
94%
55753
89%
**30
99%
Shooters World Long Rifle
<<locked>>
94%
55579
89%
**72
100%
Shooters World Match Rifle
<<locked>>
83%
55143
88%
**46
100%
Shooters World Precision
<<locked>>
87%
55709
89%
**56
100%
Somchem S335
<<locked>>
84%
55622
89%
**64
100%
Somchem S341
<<locked>>
83%
55854
90%
**59
100%
Somchem S355
<<locked>>
90%
55521
89%
**79
100%
Somchem S361
<<locked>>
97%
52344
84%
**10
95%
Somchem S365
<<locked>>
97%
51880
83%
**05
100%
Somchem S385
<<locked>>
97%
48269
77%
**10
97%
Vihtavuori N133
<<locked>>
86%
55622
89%
**38
100%
Vihtavuori N135
<<locked>>
91%
55550
89%
**90
100%
Vihtavuori N140
<<locked>>
86%
55796
89%
**10
100%
Vihtavuori N150
<<locked>>
96%
55883
90%
**43
100%
Vihtavuori N160
<<locked>>
93%
55521
89%
**92
100%
[Vihtavuori N165]*
<<locked>>
97%
39653
64%
**30
94%
Vihtavuori N540
<<locked>>
86%
55463
89%
**36
100%
Vihtavuori N550
<<locked>>
93%
55970
90%
**41
100%
Vihtavuori N555
<<locked>>
97%
44483
71%
**03
99%
[Vihtavuori N560]*
<<locked>>
97%
42931
69%
**80
92%
Winchester 6.5 StaBALL
<<locked>>
95%
55550
89%
**76
100%
Winchester 760 👍
<<locked>>
91%
56072
90%
**61
99%
Winchester StaBALL HD
<<locked>>
97%
32721
52%
**48
100%
Winchester Supreme 780
<<locked>>
97%
49617
80%
**20
96%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2206H
<<locked>>
81%
51242
82%
**10
100%
ADI AR 2208
<<locked>>
81%
43511
70%
**69
99%
[ADI AR 2209]*
<<locked>>
85%
33808
54%
**18
90%
[ADI AR 2213]*
<<locked>>
93%
38392
62%
**43
90%
Accurate 2700
<<locked>>
81%
41655
67%
**90
95%
[Accurate 3100]*
<<locked>>
83%
26092
42%
**24
90%
Accurate 4064
<<locked>>
81%
45020
72%
**89
100%
Accurate 4350
<<locked>>
81%
33533
54%
**34
96%
Alliant Power Pro 2000-MR
<<locked>>
81%
47558
76%
**66
100%
Alliant Reloder- TS 15.5
<<locked>>
81%
43294
69%
**85
100%
Alliant Reloder-15
<<locked>>
81%
46528
75%
**51
100%
Alliant Reloder-16
<<locked>>
81%
33533
54%
**48
97%
Alliant Reloder-17
<<locked>>
81%
37927
61%
**79
99%
[Alliant Reloder-19]*
<<locked>>
85%
32953
53%
**02
90%
[Alliant Reloder-22]*
<<locked>>
89%
32750
53%
**41
90%
[Alliant Reloder-23]*
<<locked>>
81%
24221
39%
**98
93%
[Alliant Reloder-25]*
<<locked>>
89%
27485
44%
**97
90%
[Alliant Reloder-26]*
<<locked>>
81%
25454
41%
**77
90%
Baschieri & Pellagri 107
<<locked>>
81%
50908
82%
**26
100%
[Bofors RP15]*
<<locked>>
92%
33359
53%
**57
90%
Bofors RP3
<<locked>>
81%
43308
69%
**92
100%
[Bofors RP5]*
<<locked>>
89%
32750
53%
**41
90%
[Bofors RP7]*
<<locked>>
81%
38682
62%
**64
94%
Hodgdon CFE223
<<locked>>
81%
45324
73%
**67
99%
Hodgdon H380
<<locked>>
81%
44193
71%
**02
99%
Hodgdon H414
<<locked>>
81%
39334
63%
**56
95%
[Hodgdon H4350]*
<<locked>>
81%
32822
53%
**52
92%
[Hodgdon H4831 SC]*
<<locked>>
92%
39726
64%
**36
90%
Hodgdon H4895
<<locked>>
81%
51764
83%
**23
100%
Hodgdon Hybrid 100V
<<locked>>
81%
30951
50%
**46
97%
Hodgdon LVR
<<locked>>
81%
36782
59%
**90
97%
[Hodgdon Superperformance]*
<<locked>>
81%
34969
56%
**84
93%
Hodgdon VARGET
<<locked>>
81%
43149
69%
**56
99%
Hodgdon TrailBoss
<<locked>>
81%
27224
44%
**29
100%
IMR 3031
<<locked>>
81%
47732
77%
**41
100%
IMR 4064
<<locked>>
81%
42569
68%
**43
99%
IMR 4166 Enduron
<<locked>>
81%
41930
67%
**07
96%
[IMR 4350]*
<<locked>>
81%
34258
55%
**88
93%
IMR 4451 Enduron
<<locked>>
81%
40190
64%
**97
95%
IMR 4831
<<locked>>
81%
29341
47%
**13
95%
IMR 4895
<<locked>>
81%
47790
77%
**87
100%
[IMR 4955 Enduron]*
<<locked>>
91%
38261
61%
**70
90%
[IMR 7828 SSC]*
<<locked>>
92%
38014
61%
**49
90%
Lovex D073.6
<<locked>>
81%
51169
82%
**90
100%
Lovex S060
<<locked>>
81%
50763
81%
**48
100%
Lovex S062
<<locked>>
81%
45759
73%
**98
100%
Lovex S065
<<locked>>
81%
37536
60%
**48
96%
[Lovex S070]*
<<locked>>
81%
35476
57%
**21
94%
[Lovex S071]*
<<locked>>
88%
25889
42%
**15
90%
Norma 201
<<locked>>
81%
49966
80%
**61
100%
Norma 202
<<locked>>
81%
50517
81%
**54
100%
Norma 203B
<<locked>>
81%
45905
74%
**38
100%
[Norma 204]*
<<locked>>
81%
33533
54%
**98
90%
[Norma MRP]*
<<locked>>
85%
29936
48%
**92
90%
Norma URP
<<locked>>
81%
33794
54%
**34
96%
Ramshot Big Game
<<locked>>
81%
46180
74%
**61
100%
[Ramshot Grand]*
<<locked>>
91%
37637
60%
**46
90%
[Ramshot Hunter]*
<<locked>>
81%
32924
53%
**18
94%
[Ramshot Magnum]*
<<locked>>
91%
32880
53%
**18
90%
ReloadSwiss RS 14
<<locked>>
81%
27586
44%
**65
100%
ReloadSwiss RS 50
<<locked>>
81%
44295
71%
**85
97%
ReloadSwiss RS 52
<<locked>>
81%
49850
80%
**62
100%
ReloadSwiss RS 60
<<locked>>
81%
40364
65%
**38
100%
ReloadSwiss RS 62
<<locked>>
81%
33460
54%
**54
96%
ReloadSwiss RS 70
<<locked>>
81%
33185
53%
**61
95%
Rottweil R 902
<<locked>>
81%
47529
76%
**12
100%
Rottweil R 903
<<locked>>
81%
40582
65%
**36
100%
[Rottweil R 904]*
<<locked>>
86%
36260
58%
**34
90%
[Rottweil R 905]*
<<locked>>
85%
31981
51%
**92
90%
[Rottweil R 907]*
<<locked>>
81%
38682
62%
**64
94%
SNPE Vectan SP 11
<<locked>>
81%
41872
67%
**89
99%
SNPE Vectan SP 7
<<locked>>
81%
52011
83%
**13
100%
SNPE Vectan SP 9
<<locked>>
81%
49705
80%
**80
100%
SNPE Vectan Tubal 3000
<<locked>>
81%
51053
82%
**02
100%
SNPE Vectan Tubal 5000
<<locked>>
81%
42728
69%
**67
100%
[SNPE Vectan Tubal 7000]*
<<locked>>
81%
36680
59%
**95
94%
Shooters World Long Rifle
<<locked>>
81%
37536
60%
**48
96%
Shooters World Match Rifle
<<locked>>
81%
51169
82%
**90
100%
Shooters World Precision
<<locked>>
81%
45759
73%
**98
100%
Somchem S335
<<locked>>
81%
50865
82%
**98
100%
Somchem S341
<<locked>>
81%
51735
83%
**00
100%
Somchem S355
<<locked>>
81%
41437
66%
**43
100%
[Somchem S361]*
<<locked>>
88%
38870
62%
**64
90%
Somchem S365
<<locked>>
81%
30240
48%
**85
98%
[Somchem S385]*
<<locked>>
83%
30037
48%
**13
90%
Vihtavuori N133
<<locked>>
81%
48327
77%
**46
100%
Vihtavuori N135
<<locked>>
81%
40277
65%
**70
100%
Vihtavuori N140
<<locked>>
81%
47166
76%
**85
100%
Vihtavuori N150
<<locked>>
81%
35404
57%
**98
99%
Vihtavuori N160
<<locked>>
81%
36709
59%
**64
97%
[Vihtavuori N165]*
<<locked>>
89%
31517
51%
**39
90%
Vihtavuori N540
<<locked>>
81%
47007
75%
**12
100%
Vihtavuori N550
<<locked>>
81%
37391
60%
**10
97%
[Vihtavuori N555]*
<<locked>>
81%
25860
41%
**64
93%
[Vihtavuori N560]*
<<locked>>
94%
38508
62%
**89
90%
Winchester 6.5 StaBALL
<<locked>>
81%
34853
56%
**15
99%
Winchester 760
<<locked>>
81%
39334
63%
**56
95%
[Winchester StaBALL HD]*
<<locked>>
83%
22437
36%
**82
90%
[Winchester Supreme 780]*
<<locked>>
86%
33214
53%
**85
90%

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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