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Load data for .300 Win. Mag. + .308 | 165gr | Hornady GMX

Recommended Powder(s): Alliant Reloder-16, Hodgdon H414, ReloadSwiss RS 62, ReloadSwiss RS 70, Winchester 760

.300 Win. Mag. + .308 | 165gr | Hornady GMX

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.308 | 165gr | Hornady GMX
Manufacturer SKU:
30470
Bullet Weight:
165gr | 10.7g
Bullet Diameter:
0.308" | 7.82mm
Bullet Length:
1.429" | 36.3mm
Caliber:
.300 Win. Mag. load data
Case Length (l3):
2.620" | 66.5mm
Cartridge Length (C.O.L.):
3.290" | 83.6mm
Seated Depth:
0.759" | 19.3mm
Shank Seated Depth:
0.559" | 14.2mm
Case Capacity:
90.5 Grains of Water | 5.88 cm³
Primer Size:
Large Rifle Magnum (LRM)
Max. allowed Pressure:
62366 psi | 4300 bar
LID:
LID_B2680_C380
Last updated:
2025-02-02
Recommended Twist Rate:
1:11 - 1:9

Load data for 186 loads in caliber .300 Win. Mag. with .308 | 165gr | Hornady GMX bullet and 93 powders such as Alliant Reloder-16, Hodgdon H414, ReloadSwiss RS 62, ReloadSwiss RS 70, Winchester 760. 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>>
83%
55738
89%
**20
100%
ADI AR 2208
<<locked>>
88%
55593
89%
**04
100%
ADI AR 2209
<<locked>>
97%
50691
81%
**07
96%
[ADI AR 2213]*
<<locked>>
97%
44846
72%
**12
92%
Accurate 2700
<<locked>>
89%
55317
89%
**48
98%
Accurate 3100
<<locked>>
97%
43627
70%
**46
97%
Accurate 4064
<<locked>>
87%
55782
89%
**90
100%
Accurate 4350
<<locked>>
95%
56014
90%
**86
100%
Alliant Reloder- TS 15.5
<<locked>>
88%
55492
89%
**27
100%
Alliant Reloder-15
<<locked>>
86%
55506
89%
**33
100%
Alliant Reloder-16 👍
<<locked>>
96%
55550
89%
**18
100%
Alliant Reloder-17
<<locked>>
92%
55811
89%
**35
100%
Alliant Reloder-19
<<locked>>
97%
49864
80%
**94
96%
[Alliant Reloder-22]*
<<locked>>
97%
43482
70%
**15
94%
Alliant Reloder-23
<<locked>>
97%
41075
66%
**72
99%
Alliant Reloder-25
<<locked>>
97%
36390
58%
**71
95%
Alliant Reloder-26
<<locked>>
97%
46050
74%
**46
99%
Baschieri & Pellagri 107
<<locked>>
83%
55477
89%
**33
100%
[Bofors RP15]*
<<locked>>
97%
39900
64%
**33
93%
Bofors RP3
<<locked>>
88%
55172
88%
**27
100%
[Bofors RP5]*
<<locked>>
97%
43482
70%
**15
94%
Bofors RP7
<<locked>>
92%
55651
89%
**10
98%
Hodgdon CFE223
<<locked>>
86%
55695
89%
**69
100%
Hodgdon H380
<<locked>>
87%
55782
89%
**33
100%
Hodgdon H414 👍
<<locked>>
91%
55999
90%
**99
99%
Hodgdon H4350
<<locked>>
97%
54694
88%
**10
98%
[Hodgdon H4831 SC]*
<<locked>>
97%
47166
76%
**05
92%
Hodgdon Hybrid 100V
<<locked>>
97%
53722
86%
**10
100%
Hodgdon LVR
<<locked>>
93%
55840
90%
**79
100%
Hodgdon Superperformance
<<locked>>
93%
55390
89%
**12
98%
Hodgdon VARGET
<<locked>>
89%
55593
89%
**04
100%
Hodgdon TrailBoss
<<locked>>
97%
34635
56%
**78
100%
IMR 3031
<<locked>>
85%
55332
89%
**90
100%
IMR 4064
<<locked>>
89%
55347
89%
**90
100%
IMR 4166 Enduron
<<locked>>
90%
56086
90%
**87
98%
IMR 4350
<<locked>>
96%
55956
90%
**27
98%
IMR 4451 Enduron
<<locked>>
91%
55637
89%
**10
98%
IMR 4831
<<locked>>
97%
50357
81%
**74
100%
IMR 4895
<<locked>>
85%
56028
90%
**49
100%
[IMR 4955 Enduron]*
<<locked>>
97%
47007
75%
**76
93%
[IMR 7828 SSC]*
<<locked>>
97%
46267
74%
**54
93%
Lovex D073.6
<<locked>>
83%
55898
90%
**97
100%
Lovex S060
<<locked>>
84%
55680
89%
**58
100%
Lovex S062
<<locked>>
87%
55854
90%
**94
100%
Lovex S065
<<locked>>
93%
55854
90%
**10
99%
Lovex S070
<<locked>>
94%
55825
90%
**36
99%
Lovex S071
<<locked>>
97%
36289
58%
**98
95%
Norma 201
<<locked>>
84%
55550
89%
**81
100%
Norma 202
<<locked>>
83%
55158
88%
**64
100%
Norma 203B
<<locked>>
86%
55506
89%
**33
100%
Norma 204
<<locked>>
95%
55651
89%
**66
97%
Norma MRP
<<locked>>
97%
45614
73%
**97
97%
Norma URP
<<locked>>
95%
55738
89%
**86
100%
Ramshot Big Game
<<locked>>
86%
55753
89%
**49
100%
[Ramshot Grand]*
<<locked>>
97%
48196
77%
**97
94%
Ramshot Hunter
<<locked>>
96%
55637
89%
**92
99%
[Ramshot Magnum]*
<<locked>>
97%
42090
67%
**56
94%
ReloadSwiss RS 14
<<locked>>
96%
34882
56%
**14
100%
ReloadSwiss RS 50
<<locked>>
87%
55811
89%
**13
99%
ReloadSwiss RS 52
<<locked>>
84%
55477
89%
**89
100%
ReloadSwiss RS 60
<<locked>>
89%
55129
88%
**31
100%
ReloadSwiss RS 62 👍
<<locked>>
95%
56043
90%
**12
100%
ReloadSwiss RS 70 👍
<<locked>>
96%
56130
90%
**51
100%
Rottweil R 902
<<locked>>
86%
55883
90%
**77
100%
Rottweil R 903
<<locked>>
90%
55985
90%
**30
100%
Rottweil R 904
<<locked>>
97%
51996
83%
**74
95%
Rottweil R 905
<<locked>>
97%
48834
78%
**77
96%
Rottweil R 907
<<locked>>
92%
55651
89%
**10
98%
SNPE Vectan SP 11
<<locked>>
89%
55361
89%
**56
100%
SNPE Vectan SP 9
<<locked>>
84%
55695
89%
**13
100%
SNPE Vectan Tubal 3000
<<locked>>
83%
55695
89%
**99
100%
SNPE Vectan Tubal 5000
<<locked>>
89%
55782
89%
**95
100%
SNPE Vectan Tubal 7000
<<locked>>
93%
55651
89%
**58
98%
Shooters World Long Rifle
<<locked>>
93%
55854
90%
**10
99%
Shooters World Match Rifle
<<locked>>
83%
55898
90%
**97
100%
Shooters World Precision
<<locked>>
87%
55854
90%
**94
100%
Somchem S335
<<locked>>
84%
55999
90%
**08
100%
Somchem S355
<<locked>>
90%
55405
89%
**17
100%
[Somchem S361]*
<<locked>>
97%
53940
86%
**61
94%
Somchem S365
<<locked>>
97%
53911
86%
**76
100%
Somchem S385
<<locked>>
97%
49023
79%
**48
97%
Vihtavuori N133
<<locked>>
85%
55651
89%
**79
100%
Vihtavuori N135
<<locked>>
91%
56101
90%
**44
100%
Vihtavuori N140
<<locked>>
85%
55448
89%
**44
100%
Vihtavuori N150
<<locked>>
95%
55506
89%
**74
100%
Vihtavuori N160
<<locked>>
93%
55985
90%
**40
100%
[Vihtavuori N165]*
<<locked>>
97%
40683
65%
**74
94%
Vihtavuori N540
<<locked>>
86%
55608
89%
**77
100%
Vihtavuori N550
<<locked>>
92%
55521
89%
**79
100%
Vihtavuori N555
<<locked>>
97%
45890
74%
**58
99%
Winchester 6.5 StaBALL
<<locked>>
94%
55840
90%
**17
100%
Winchester 760 👍
<<locked>>
91%
55999
90%
**99
99%
Winchester StaBALL HD
<<locked>>
97%
33881
54%
**99
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2206H
<<locked>>
81%
52127
84%
**64
100%
ADI AR 2208
<<locked>>
81%
44411
71%
**13
99%
[ADI AR 2209]*
<<locked>>
86%
35375
57%
**75
90%
[ADI AR 2213]*
<<locked>>
93%
40219
64%
**00
90%
Accurate 2700
<<locked>>
81%
42525
68%
**25
95%
[Accurate 3100]*
<<locked>>
83%
27209
44%
**56
90%
Accurate 4064
<<locked>>
81%
46427
74%
**46
100%
Accurate 4350
<<locked>>
81%
34751
56%
**72
96%
Alliant Reloder- TS 15.5
<<locked>>
81%
44237
71%
**30
100%
Alliant Reloder-15
<<locked>>
81%
47485
76%
**02
100%
Alliant Reloder-16
<<locked>>
81%
34461
55%
**92
96%
Alliant Reloder-17
<<locked>>
81%
38812
62%
**17
99%
[Alliant Reloder-19]*
<<locked>>
85%
34592
55%
**59
90%
[Alliant Reloder-22]*
<<locked>>
90%
34751
56%
**08
90%
[Alliant Reloder-23]*
<<locked>>
81%
25092
40%
**29
93%
[Alliant Reloder-25]*
<<locked>>
89%
28558
46%
**31
90%
[Alliant Reloder-26]*
<<locked>>
81%
26600
43%
**21
90%
Baschieri & Pellagri 107
<<locked>>
81%
51764
83%
**71
100%
[Bofors RP15]*
<<locked>>
93%
35273
57%
**18
90%
Bofors RP3
<<locked>>
81%
44440
71%
**43
100%
[Bofors RP5]*
<<locked>>
90%
34751
56%
**08
90%
[Bofors RP7]*
<<locked>>
81%
39697
64%
**05
94%
Hodgdon CFE223
<<locked>>
81%
46253
74%
**18
99%
Hodgdon H380
<<locked>>
81%
44918
72%
**43
98%
Hodgdon H414
<<locked>>
81%
40161
64%
**97
95%
[Hodgdon H4350]*
<<locked>>
81%
33460
54%
**84
91%
[Hodgdon H4831 SC]*
<<locked>>
92%
40756
65%
**77
90%
Hodgdon Hybrid 100V
<<locked>>
81%
31850
51%
**90
97%
Hodgdon LVR
<<locked>>
81%
37594
60%
**35
96%
[Hodgdon Superperformance]*
<<locked>>
81%
36172
58%
**25
93%
Hodgdon VARGET
<<locked>>
81%
43743
70%
**97
99%
Hodgdon TrailBoss
<<locked>>
84%
28543
46%
**50
100%
IMR 3031
<<locked>>
81%
48559
78%
**89
100%
IMR 4064
<<locked>>
81%
43482
70%
**87
99%
IMR 4166 Enduron
<<locked>>
81%
42946
69%
**51
96%
[IMR 4350]*
<<locked>>
81%
35172
56%
**23
92%
IMR 4451 Enduron
<<locked>>
81%
41133
66%
**44
95%
[IMR 4831]*
<<locked>>
81%
30487
49%
**48
94%
IMR 4895
<<locked>>
81%
48776
78%
**31
100%
[IMR 4955 Enduron]*
<<locked>>
91%
39871
64%
**21
90%
[IMR 7828 SSC]*
<<locked>>
93%
40074
64%
**17
90%
Lovex D073.6
<<locked>>
81%
51924
83%
**38
100%
Lovex S060
<<locked>>
81%
51227
82%
**89
100%
Lovex S062
<<locked>>
81%
46630
75%
**46
100%
Lovex S065
<<locked>>
81%
38348
61%
**89
96%
[Lovex S070]*
<<locked>>
81%
36506
59%
**62
94%
[Lovex S071]*
<<locked>>
88%
27209
44%
**56
90%
Norma 201
<<locked>>
81%
50966
82%
**12
100%
Norma 202
<<locked>>
81%
51430
82%
**08
100%
Norma 203B
<<locked>>
81%
46717
75%
**85
100%
[Norma 204]*
<<locked>>
81%
35041
56%
**46
90%
[Norma MRP]*
<<locked>>
86%
31575
51%
**46
90%
Norma URP
<<locked>>
81%
34780
56%
**79
96%
Ramshot Big Game
<<locked>>
81%
46963
75%
**05
100%
[Ramshot Grand]*
<<locked>>
91%
39914
64%
**20
90%
[Ramshot Hunter]*
<<locked>>
81%
33837
54%
**56
93%
[Ramshot Magnum]*
<<locked>>
91%
33895
54%
**56
90%
ReloadSwiss RS 14
<<locked>>
81%
27717
44%
**63
100%
ReloadSwiss RS 50
<<locked>>
81%
45310
73%
**36
97%
ReloadSwiss RS 52
<<locked>>
81%
50894
82%
**20
100%
ReloadSwiss RS 60
<<locked>>
81%
41249
66%
**79
100%
ReloadSwiss RS 62
<<locked>>
81%
34505
55%
**98
96%
ReloadSwiss RS 70
<<locked>>
81%
34069
55%
**92
95%
Rottweil R 902
<<locked>>
81%
48646
78%
**62
100%
Rottweil R 903
<<locked>>
81%
41756
67%
**84
99%
[Rottweil R 904]*
<<locked>>
87%
37884
61%
**89
90%
[Rottweil R 905]*
<<locked>>
86%
33678
54%
**46
90%
[Rottweil R 907]*
<<locked>>
81%
39697
64%
**05
94%
SNPE Vectan SP 11
<<locked>>
81%
42917
69%
**43
99%
SNPE Vectan SP 9
<<locked>>
81%
50473
81%
**28
100%
SNPE Vectan Tubal 3000
<<locked>>
81%
51837
83%
**43
100%
SNPE Vectan Tubal 5000
<<locked>>
81%
43555
70%
**12
100%
[SNPE Vectan Tubal 7000]*
<<locked>>
81%
37768
61%
**33
94%
Shooters World Long Rifle
<<locked>>
81%
38348
61%
**89
96%
Shooters World Match Rifle
<<locked>>
81%
51924
83%
**38
100%
Shooters World Precision
<<locked>>
81%
46630
75%
**46
100%
Somchem S335
<<locked>>
81%
51576
83%
**43
100%
Somchem S355
<<locked>>
81%
42308
68%
**84
99%
[Somchem S361]*
<<locked>>
88%
40727
65%
**21
90%
Somchem S365
<<locked>>
81%
31212
50%
**30
98%
[Somchem S385]*
<<locked>>
83%
31401
50%
**64
90%
Vihtavuori N133
<<locked>>
81%
48965
79%
**90
100%
Vihtavuori N135
<<locked>>
81%
41307
66%
**12
100%
Vihtavuori N140
<<locked>>
81%
48196
77%
**30
100%
Vihtavuori N150
<<locked>>
81%
36477
58%
**43
99%
Vihtavuori N160
<<locked>>
81%
37782
61%
**08
97%
[Vihtavuori N165]*
<<locked>>
90%
32822
53%
**87
90%
Vihtavuori N540
<<locked>>
81%
47863
77%
**59
100%
Vihtavuori N550
<<locked>>
81%
38276
61%
**54
97%
[Vihtavuori N555]*
<<locked>>
81%
27180
44%
**11
93%
Winchester 6.5 StaBALL
<<locked>>
81%
35766
57%
**52
99%
Winchester 760
<<locked>>
81%
40161
64%
**97
95%
[Winchester StaBALL HD]*
<<locked>>
83%
23380
37%
**16
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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