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Load data for .300 Rem. Ultra Mag + .308 | 175gr | Hornady Sub-X

Recommended Powder(s): ADI AR 2213, IMR 7828 SSC, Norma MRP, ReloadSwiss RS 76, Vihtavuori N560

.300 Rem. Ultra Mag + .308 | 175gr | Hornady Sub-X

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.308 | 175gr | Hornady Sub-X
Manufacturer SKU:
30718
Bullet Weight:
175gr | 11.3g
Bullet Diameter:
0.308" | 7.82mm
Bullet Length:
1.500" | 38.1mm
Caliber:
.300 Rem. Ultra Mag load data
Case Length (l3):
2.850" | 72.4mm
Cartridge Length (C.O.L.):
3.544" | 90.0mm
Seated Depth:
0.806" | 20.5mm
Shank Seated Depth:
0.708" | 18.0mm
Case Capacity:
112.5 Grains of Water | 7.30 cm³
Primer Size:
Large Rifle Magnum (LRM)
Max. allowed Pressure:
64977 psi | 4480 bar
LID:
LID_B10726_C374
Last updated:
2025-01-01
Recommended Twist Rate:
1:10 - 1:8

Load data for 120 loads in caliber .300 Rem. Ultra Mag with .308 | 175gr | Hornady Sub-X bullet and 60 powders such as ADI AR 2213, IMR 7828 SSC, Norma MRP, ReloadSwiss RS 76, Vihtavuori N560. 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 2209
<<locked>>
90%
57841
89%
**33
100%
ADI AR 2213 👍
<<locked>>
93%
57682
89%
**63
99%
ADI AR 2217
<<locked>>
97%
49385
76%
**25
99%
ADI AR 2225
<<locked>>
97%
44353
68%
**85
100%
Accurate 3100
<<locked>>
93%
58334
90%
**71
100%
Accurate 4350
<<locked>>
84%
57841
89%
**87
100%
Accurate MAGPRO
<<locked>>
93%
57986
89%
**72
98%
Alliant Reloder-16
<<locked>>
86%
58262
90%
**33
100%
Alliant Reloder-19
<<locked>>
90%
58030
89%
**23
100%
Alliant Reloder-22
<<locked>>
93%
57870
89%
**59
100%
Alliant Reloder-23
<<locked>>
94%
58088
89%
**10
100%
Alliant Reloder-25
<<locked>>
97%
55898
86%
**36
100%
Alliant Reloder-26
<<locked>>
90%
58407
90%
**92
100%
[Alliant Reloder-33]*
<<locked>>
97%
45934
71%
**05
94%
Hodgdon H1000
<<locked>>
97%
49385
76%
**25
99%
Hodgdon H4350
<<locked>>
88%
58218
90%
**77
100%
Hodgdon H4831
<<locked>>
95%
58392
90%
**17
99%
Hodgdon H4831 SC
<<locked>>
91%
58059
89%
**17
99%
Hodgdon Hybrid 100V
<<locked>>
88%
58146
89%
**51
100%
Hodgdon LVR
<<locked>>
83%
58015
89%
**97
100%
Hodgdon Retumbo
<<locked>>
97%
44353
68%
**85
100%
Hodgdon TrailBoss
<<locked>>
96%
35520
55%
**27
100%
IMR 4350
<<locked>>
86%
58421
90%
**87
100%
IMR 4831
<<locked>>
89%
57986
89%
**74
100%
IMR 4955 Enduron
<<locked>>
93%
58204
90%
**90
99%
IMR 7828 SSC 👍
<<locked>>
92%
58305
90%
**82
99%
[IMR 7977 Enduron]*
<<locked>>
97%
57435
88%
**18
93%
IMR 8133 Enduron
<<locked>>
97%
40379
62%
**90
96%
Lovex S065
<<locked>>
84%
58001
89%
**51
100%
Lovex S070
<<locked>>
85%
57725
89%
**67
100%
Lovex S071
<<locked>>
97%
56304
87%
**41
100%
Norma 204
<<locked>>
86%
58175
90%
**20
100%
Norma 217
<<locked>>
97%
40147
62%
**10
98%
Norma MRP 👍
<<locked>>
90%
57928
89%
**79
100%
Norma URP
<<locked>>
85%
58247
90%
**00
100%
Ramshot Hunter
<<locked>>
86%
57798
89%
**17
100%
Ramshot Magnum
<<locked>>
93%
58291
90%
**36
100%
ReloadSwiss RS 14
<<locked>>
96%
36216
56%
**67
100%
ReloadSwiss RS 62
<<locked>>
84%
58189
90%
**13
100%
ReloadSwiss RS 70
<<locked>>
85%
58262
90%
**56
100%
ReloadSwiss RS 76 👍
<<locked>>
97%
56057
86%
**18
100%
ReloadSwiss RS 80
<<locked>>
97%
50821
78%
**90
98%
Rottweil R 904
<<locked>>
89%
58349
90%
**00
99%
Rottweil R 905
<<locked>>
90%
58204
90%
**27
100%
Rottweil R 907
<<locked>>
83%
58291
90%
**74
100%
SNPE Vectan Tubal 7000
<<locked>>
84%
57870
89%
**15
100%
Shooters World Long Rifle
<<locked>>
84%
58001
89%
**51
100%
Somchem S361
<<locked>>
88%
58334
90%
**61
99%
Somchem S365
<<locked>>
86%
57711
89%
**81
100%
Somchem S385
<<locked>>
90%
57856
89%
**87
100%
Vihtavuori N150
<<locked>>
86%
58320
90%
**05
100%
Vihtavuori N165
<<locked>>
95%
58392
90%
**74
100%
[Vihtavuori N170]*
<<locked>>
97%
46325
71%
**94
92%
Vihtavuori N555
<<locked>>
91%
58349
90%
**13
100%
Vihtavuori N560 👍
<<locked>>
92%
58160
90%
**86
99%
Vihtavuori N565
<<locked>>
96%
57653
89%
**56
99%
Vihtavuori N568
<<locked>>
97%
52185
80%
**07
97%
Vihtavuori N570
<<locked>>
97%
49734
77%
**97
95%
Winchester 6.5 StaBALL
<<locked>>
85%
58407
90%
**25
100%
Winchester StaBALL HD
<<locked>>
94%
57841
89%
**05
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2209
<<locked>>
81%
43221
67%
**84
98%
ADI AR 2213
<<locked>>
81%
38667
59%
**12
95%
[ADI AR 2217]*
<<locked>>
82%
29762
46%
**79
90%
[ADI AR 2225]*
<<locked>>
81%
26092
40%
**97
91%
Accurate 3100
<<locked>>
81%
39088
60%
**59
99%
Accurate 4350
<<locked>>
81%
52040
80%
**12
100%
[Accurate MAGPRO]*
<<locked>>
81%
38189
59%
**08
92%
Alliant Reloder-16
<<locked>>
81%
49501
76%
**12
100%
Alliant Reloder-19
<<locked>>
81%
43221
67%
**84
98%
Alliant Reloder-22
<<locked>>
81%
38986
60%
**25
97%
Alliant Reloder-23
<<locked>>
81%
37492
58%
**85
100%
Alliant Reloder-25
<<locked>>
81%
32401
50%
**97
98%
Alliant Reloder-26
<<locked>>
81%
41901
64%
**30
100%
[Alliant Reloder-33]*
<<locked>>
91%
37275
57%
**21
90%
[Hodgdon H1000]*
<<locked>>
82%
29762
46%
**79
90%
Hodgdon H4350
<<locked>>
81%
46528
72%
**90
99%
[Hodgdon H4831]*
<<locked>>
81%
36129
56%
**10
93%
Hodgdon H4831 SC
<<locked>>
81%
40553
62%
**05
95%
Hodgdon Hybrid 100V
<<locked>>
81%
46601
72%
**90
100%
Hodgdon LVR
<<locked>>
81%
54215
83%
**41
100%
[Hodgdon Retumbo]*
<<locked>>
81%
26092
40%
**97
91%
Hodgdon TrailBoss
<<locked>>
81%
28471
44%
**80
100%
IMR 4350
<<locked>>
81%
48965
75%
**40
99%
IMR 4831
<<locked>>
81%
44701
69%
**74
100%
IMR 4955 Enduron
<<locked>>
81%
40306
62%
**75
95%
IMR 7828 SSC
<<locked>>
81%
39740
61%
**54
95%
[IMR 7977 Enduron]*
<<locked>>
91%
47311
73%
**54
90%
[IMR 8133 Enduron]*
<<locked>>
87%
28950
45%
**98
90%
Lovex S065
<<locked>>
81%
52547
81%
**72
100%
Lovex S070
<<locked>>
81%
51155
79%
**72
100%
Lovex S071
<<locked>>
81%
33460
52%
**31
97%
Norma 204
<<locked>>
81%
49559
76%
**79
99%
[Norma 217]*
<<locked>>
84%
25541
39%
**06
90%
Norma MRP
<<locked>>
81%
40988
63%
**94
98%
Norma URP
<<locked>>
81%
50662
78%
**92
100%
Ramshot Hunter
<<locked>>
81%
49559
76%
**89
100%
Ramshot Magnum
<<locked>>
81%
36405
56%
**56
97%
ReloadSwiss RS 14
<<locked>>
81%
29109
45%
**22
100%
ReloadSwiss RS 62
<<locked>>
81%
52112
80%
**25
100%
ReloadSwiss RS 70
<<locked>>
81%
50488
78%
**44
100%
ReloadSwiss RS 76
<<locked>>
81%
30908
48%
**80
95%
[ReloadSwiss RS 80]*
<<locked>>
85%
32126
49%
**90
90%
Rottweil R 904
<<locked>>
81%
44280
68%
**67
97%
Rottweil R 905
<<locked>>
81%
42569
66%
**67
98%
Rottweil R 907
<<locked>>
81%
53882
83%
**05
100%
SNPE Vectan Tubal 7000
<<locked>>
81%
51837
80%
**33
100%
Shooters World Long Rifle
<<locked>>
81%
52547
81%
**72
100%
Somchem S361
<<locked>>
81%
45411
70%
**51
97%
Somchem S365
<<locked>>
81%
47776
74%
**40
100%
Somchem S385
<<locked>>
81%
43250
67%
**54
99%
Vihtavuori N150
<<locked>>
81%
50314
77%
**97
100%
Vihtavuori N165
<<locked>>
81%
36521
56%
**03
96%
[Vihtavuori N170]*
<<locked>>
94%
41379
64%
**02
90%
Vihtavuori N555
<<locked>>
81%
42061
65%
**64
100%
Vihtavuori N560
<<locked>>
81%
38986
60%
**41
95%
[Vihtavuori N565]*
<<locked>>
81%
33808
52%
**00
93%
[Vihtavuori N568]*
<<locked>>
85%
33286
51%
**10
90%
[Vihtavuori N570]*
<<locked>>
90%
38363
59%
**57
90%
Winchester 6.5 StaBALL
<<locked>>
81%
51634
79%
**33
100%
Winchester StaBALL HD
<<locked>>
81%
34243
53%
**15
100%

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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