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

Recommended Powder(s):

.300 Weath. 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:
1.503" | 38.2mm
Caliber:
.300 Weath. Mag. load data
Case Length (l3):
2.824" | 71.7mm
Cartridge Length (C.O.L.):
3.507" | 89.1mm
Seated Depth:
0.820" | 20.8mm
Shank Seated Depth:
0.661" | 16.8mm
Case Capacity:
98.9 Grains of Water | 6.42 cm³
Primer Size:
Large Rifle Magnum (LRM)
Max. allowed Pressure:
63817 psi | 4400 bar
LID:
LID_B2701_C379
Last updated:
2025-01-01
Recommended Twist Rate:
1:11 - 1:9

Load data for 144 loads in caliber .300 Weath. Mag. with .308 | 180gr | Hornady GMX bullet and 72 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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  • 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%
57421
90%
**58
100%
ADI AR 2209
<<locked>>
95%
56797
89%
**53
99%
ADI AR 2213
<<locked>>
97%
53693
84%
**30
97%
[ADI AR 2217]*
<<locked>>
97%
39189
61%
**28
93%
ADI AR 2225
<<locked>>
97%
35099
55%
**85
95%
Accurate 2700
<<locked>>
86%
57159
90%
**22
99%
Accurate 3100
<<locked>>
97%
53127
83%
**41
100%
Accurate 4350
<<locked>>
90%
57392
90%
**23
100%
Accurate MAGPRO
<<locked>>
97%
52591
82%
**33
95%
Alliant Reloder- TS 15.5
<<locked>>
84%
56884
89%
**61
100%
Alliant Reloder-16
<<locked>>
91%
56971
89%
**63
100%
Alliant Reloder-17
<<locked>>
86%
56594
89%
**56
100%
Alliant Reloder-19
<<locked>>
95%
56782
89%
**49
99%
Alliant Reloder-22
<<locked>>
97%
53243
83%
**27
98%
Alliant Reloder-23
<<locked>>
97%
50821
80%
**64
100%
Alliant Reloder-25
<<locked>>
97%
43700
68%
**89
99%
Alliant Reloder-26 👍
<<locked>>
96%
57000
89%
**45
100%
[Hodgdon H1000]*
<<locked>>
97%
39189
61%
**28
93%
Hodgdon H414
<<locked>>
86%
56753
89%
**33
100%
Hodgdon H4350
<<locked>>
93%
56869
89%
**84
99%
Hodgdon H4831
<<locked>>
97%
50154
79%
**15
96%
Hodgdon H4831 SC
<<locked>>
97%
56536
89%
**17
97%
Hodgdon Hybrid 100V
<<locked>>
93%
56913
89%
**81
100%
Hodgdon LVR
<<locked>>
88%
56971
89%
**20
100%
Hodgdon Retumbo
<<locked>>
97%
35099
55%
**85
95%
Hodgdon Superperformance
<<locked>>
89%
57392
90%
**76
100%
Hodgdon VARGET
<<locked>>
85%
56942
89%
**54
100%
Hodgdon TrailBoss
<<locked>>
97%
35186
55%
**62
100%
IMR 4064
<<locked>>
85%
57116
89%
**51
100%
IMR 4166 Enduron
<<locked>>
86%
57319
90%
**48
100%
IMR 4350
<<locked>>
91%
56869
89%
**81
99%
IMR 4451 Enduron
<<locked>>
87%
57232
90%
**74
100%
IMR 4831
<<locked>>
95%
56898
89%
**00
100%
IMR 4955 Enduron
<<locked>>
97%
55056
86%
**64
97%
IMR 7828 SSC
<<locked>>
97%
55753
87%
**76
98%
Lovex S065
<<locked>>
89%
57058
89%
**67
100%
Lovex S070
<<locked>>
90%
56811
89%
**84
100%
Lovex S071
<<locked>>
97%
44614
70%
**94
99%
Norma 204 👍
<<locked>>
91%
57029
89%
**23
99%
Norma MRP
<<locked>>
97%
57130
90%
**22
100%
Norma URP
<<locked>>
91%
57203
90%
**30
100%
Ramshot Hunter 👍
<<locked>>
91%
56855
89%
**40
100%
Ramshot Magnum
<<locked>>
97%
51909
81%
**90
99%
ReloadSwiss RS 14
<<locked>>
96%
35534
56%
**98
100%
ReloadSwiss RS 50
<<locked>>
83%
56768
89%
**64
100%
ReloadSwiss RS 60
<<locked>>
88%
56913
89%
**79
100%
ReloadSwiss RS 62
<<locked>>
90%
57087
89%
**40
100%
ReloadSwiss RS 70
<<locked>>
91%
57348
90%
**99
100%
ReloadSwiss RS 76
<<locked>>
97%
42395
66%
**05
98%
Rottweil R 903
<<locked>>
85%
57217
90%
**64
100%
Rottweil R 904
<<locked>>
94%
57043
89%
**94
98%
Rottweil R 905
<<locked>>
96%
57188
90%
**46
99%
Rottweil R 907
<<locked>>
88%
57043
89%
**67
99%
SNPE Vectan SP 11
<<locked>>
84%
57101
89%
**00
100%
SNPE Vectan Tubal 5000
<<locked>>
85%
56666
89%
**26
100%
SNPE Vectan Tubal 7000
<<locked>>
89%
57029
89%
**28
100%
Shooters World Long Rifle
<<locked>>
89%
57058
89%
**67
100%
Somchem S355
<<locked>>
86%
57145
90%
**61
100%
Somchem S361
<<locked>>
93%
56898
89%
**64
97%
Somchem S365
<<locked>>
93%
57305
90%
**30
100%
Somchem S385
<<locked>>
96%
57072
89%
**17
99%
Vihtavuori N135
<<locked>>
86%
56797
89%
**66
100%
Vihtavuori N150
<<locked>>
90%
56855
89%
**18
100%
Vihtavuori N160
<<locked>>
88%
57014
89%
**84
100%
Vihtavuori N165
<<locked>>
97%
49472
78%
**76
98%
Vihtavuori N550
<<locked>>
88%
57000
89%
**23
100%
Vihtavuori N555 👍
<<locked>>
97%
56985
89%
**43
100%
Vihtavuori N560
<<locked>>
97%
53301
84%
**56
97%
Vihtavuori N565
<<locked>>
97%
45905
72%
**02
95%
Winchester 6.5 StaBALL
<<locked>>
90%
57174
90%
**58
100%
Winchester 760
<<locked>>
86%
56753
89%
**33
100%
Winchester StaBALL HD 👍
<<locked>>
97%
46572
73%
**30
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2208
<<locked>>
81%
51271
80%
**62
100%
[ADI AR 2209]*
<<locked>>
81%
35839
56%
**33
93%
[ADI AR 2213]*
<<locked>>
83%
34389
54%
**16
90%
[ADI AR 2217]*
<<locked>>
93%
34882
55%
**16
90%
[ADI AR 2225]*
<<locked>>
91%
28776
45%
**95
90%
Accurate 2700
<<locked>>
81%
49240
77%
**97
98%
Accurate 3100
<<locked>>
81%
31502
49%
**11
95%
Accurate 4350
<<locked>>
81%
42670
67%
**80
99%
[Accurate MAGPRO]*
<<locked>>
88%
38203
60%
**41
90%
Alliant Reloder- TS 15.5
<<locked>>
81%
51996
81%
**85
100%
Alliant Reloder-16
<<locked>>
81%
40915
64%
**80
99%
Alliant Reloder-17
<<locked>>
81%
46992
74%
**02
100%
[Alliant Reloder-19]*
<<locked>>
81%
35781
56%
**36
93%
[Alliant Reloder-22]*
<<locked>>
81%
31357
49%
**54
91%
Alliant Reloder-23
<<locked>>
81%
30197
47%
**34
98%
[Alliant Reloder-25]*
<<locked>>
81%
26629
42%
**29
92%
Alliant Reloder-26
<<locked>>
81%
32532
51%
**52
97%
[Hodgdon H1000]*
<<locked>>
93%
34882
55%
**16
90%
Hodgdon H414
<<locked>>
81%
48196
76%
**92
99%
Hodgdon H4350
<<locked>>
81%
39436
62%
**69
96%
[Hodgdon H4831]*
<<locked>>
86%
35143
55%
**97
90%
[Hodgdon H4831 SC]*
<<locked>>
83%
35143
55%
**97
90%
Hodgdon Hybrid 100V
<<locked>>
81%
38551
60%
**72
100%
Hodgdon LVR
<<locked>>
81%
45121
71%
**23
99%
[Hodgdon Retumbo]*
<<locked>>
91%
28776
45%
**95
90%
Hodgdon Superperformance
<<locked>>
81%
43468
68%
**40
98%
Hodgdon VARGET
<<locked>>
81%
50821
80%
**59
100%
Hodgdon TrailBoss
<<locked>>
85%
29675
47%
**47
100%
IMR 4064
<<locked>>
81%
50212
79%
**43
100%
IMR 4166 Enduron
<<locked>>
81%
49269
77%
**17
99%
IMR 4350
<<locked>>
81%
41568
65%
**12
97%
IMR 4451 Enduron
<<locked>>
81%
47529
74%
**17
98%
IMR 4831
<<locked>>
81%
36912
58%
**43
98%
[IMR 4955 Enduron]*
<<locked>>
81%
34040
53%
**34
90%
[IMR 7828 SSC]*
<<locked>>
83%
34200
54%
**20
90%
Lovex S065
<<locked>>
81%
44976
70%
**61
99%
Lovex S070
<<locked>>
81%
42989
67%
**41
98%
[Lovex S071]*
<<locked>>
81%
27050
42%
**87
92%
Norma 204
<<locked>>
81%
41089
64%
**38
95%
[Norma MRP]*
<<locked>>
81%
32634
51%
**23
94%
Norma URP
<<locked>>
81%
41800
66%
**61
99%
Ramshot Hunter
<<locked>>
81%
40698
64%
**54
98%
[Ramshot Magnum]*
<<locked>>
81%
28979
45%
**75
90%
ReloadSwiss RS 14
<<locked>>
81%
28471
45%
**47
100%
ReloadSwiss RS 50
<<locked>>
81%
52736
83%
**05
100%
ReloadSwiss RS 60
<<locked>>
81%
45310
71%
**02
100%
ReloadSwiss RS 62
<<locked>>
81%
42221
66%
**94
99%
ReloadSwiss RS 70
<<locked>>
81%
40698
64%
**03
99%
[ReloadSwiss RS 76]*
<<locked>>
86%
29283
46%
**38
90%
Rottweil R 903
<<locked>>
81%
49516
78%
**49
100%
[Rottweil R 904]*
<<locked>>
81%
37115
58%
**23
92%
[Rottweil R 905]*
<<locked>>
81%
34925
55%
**16
93%
Rottweil R 907
<<locked>>
81%
45934
72%
**84
98%
SNPE Vectan SP 11
<<locked>>
81%
50981
80%
**05
100%
SNPE Vectan Tubal 5000
<<locked>>
81%
50604
79%
**44
100%
SNPE Vectan Tubal 7000
<<locked>>
81%
44121
69%
**08
98%
Shooters World Long Rifle
<<locked>>
81%
44976
70%
**61
99%
Somchem S355
<<locked>>
81%
49792
78%
**49
100%
[Somchem S361]*
<<locked>>
81%
37710
59%
**03
92%
Somchem S365
<<locked>>
81%
38653
61%
**25
100%
[Somchem S385]*
<<locked>>
81%
35389
55%
**00
94%
Vihtavuori N135
<<locked>>
81%
48530
76%
**48
100%
Vihtavuori N150
<<locked>>
81%
42801
67%
**95
100%
Vihtavuori N160
<<locked>>
81%
45136
71%
**94
100%
[Vihtavuori N165]*
<<locked>>
81%
29675
47%
**43
91%
Vihtavuori N550
<<locked>>
81%
45963
72%
**40
100%
Vihtavuori N555
<<locked>>
81%
33692
53%
**16
98%
[Vihtavuori N560]*
<<locked>>
84%
34664
54%
**52
90%
[Vihtavuori N565]*
<<locked>>
88%
33359
52%
**20
90%
Winchester 6.5 StaBALL
<<locked>>
81%
42438
67%
**25
100%
Winchester 760
<<locked>>
81%
48196
76%
**92
99%
Winchester StaBALL HD
<<locked>>
81%
24453
38%
**21
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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