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Load data for .300 Win. Mag. + .308 | 178gr | Remington SP Extended-Range

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Recommended Powder(s): Alliant Reloder-26, Hodgdon H4350, Ramshot Hunter, Vihtavuori N555, Winchester StaBALL HD

.300 Win. Mag. + .308 | 178gr | Remington SP Extended-Range

Load Specifications

Bullet:
.308 | 178gr | Remington SP Extended-Range
Bullet Weight:
178gr | 11.5g
Bullet Diameter:
0.308" | 7.82mm
Bullet Length:
1.000" | 25.4mm
Caliber:
.300 Win. Mag.
Case Length (l3):
2.620" | 66.5mm
Cartridge Length (C.O.L.):
3.290" | 83.6mm
Seated Depth:
0.330" | 8.4mm
Shank Seated Depth:
0.330" | 8.4mm
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_B5173_C380

>> Use the Personalized Load Calculator further below to adjust input parameters. 

Load data for 142 loads in caliber .300 Win. Mag. with .308 | 178gr | Remington SP Extended-Range bullet and 71 powders such as Alliant Reloder-26, Hodgdon H4350, Ramshot Hunter, Vihtavuori N555, Winchester StaBALL HD. 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".

    • A load must fulfill certain criteria to be listed in the default view below - see here.

    • Our load data might deviate from other sources - see the most common reasons here

    • All loads are based on the bullet and case dimensions shown under "Load Specifications" - see here what to do if you deviate.

    • You can set your specifications in the "Personalized Load Calculator".

    • Go to the bottom of the "My Account " page to set the measure system (imperial vs. metric) 

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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>>
84%
55811
89%
**48
100%
ADI AR 2209
<<locked>>
95%
55825
90%
**40
99%
ADI AR 2213
<<locked>>
97%
53592
86%
**30
97%
[ADI AR 2217]*
<<locked>>
97%
39552
63%
**35
93%
[ADI AR 2225]*
<<locked>>
97%
34911
56%
**79
94%
Accurate 2700
<<locked>>
85%
55941
90%
**08
99%
Accurate 3100
<<locked>>
97%
53664
86%
**58
100%
Accurate 4350
<<locked>>
89%
55492
89%
**00
100%
Accurate MAGPRO
<<locked>>
97%
52460
84%
**27
95%
Alliant Reloder- TS 15.5
<<locked>>
83%
55912
90%
**51
100%
Alliant Reloder-16
<<locked>>
91%
55941
90%
**53
100%
Alliant Reloder-17
<<locked>>
86%
55825
90%
**49
100%
Alliant Reloder-19
<<locked>>
95%
55825
90%
**36
99%
Alliant Reloder-22
<<locked>>
97%
52997
85%
**36
98%
Alliant Reloder-23
<<locked>>
97%
50633
81%
**64
100%
Alliant Reloder-25
<<locked>>
97%
43627
70%
**89
99%
Alliant Reloder-26 👍
<<locked>>
96%
55825
90%
**35
100%
[Hodgdon H1000]*
<<locked>>
97%
39552
63%
**35
93%
Hodgdon H414
<<locked>>
85%
56014
90%
**33
100%
Hodgdon H4350 👍
<<locked>>
92%
56014
90%
**84
99%
Hodgdon H4831
<<locked>>
97%
49806
80%
**12
96%
Hodgdon H4831 SC
<<locked>>
96%
55535
89%
**10
97%
Hodgdon Hybrid 100V
<<locked>>
92%
55245
89%
**58
100%
Hodgdon LVR
<<locked>>
88%
56086
90%
**10
100%
[Hodgdon Retumbo]*
<<locked>>
97%
34911
56%
**79
94%
Hodgdon Superperformance
<<locked>>
88%
55666
89%
**59
99%
Hodgdon VARGET
<<locked>>
84%
55477
89%
**38
100%
Hodgdon TrailBoss
<<locked>>
96%
34867
56%
**65
100%
IMR 4064
<<locked>>
84%
55492
89%
**28
100%
IMR 4166 Enduron
<<locked>>
85%
55724
89%
**38
99%
IMR 4350
<<locked>>
90%
55332
89%
**71
99%
IMR 4451 Enduron
<<locked>>
86%
55767
89%
**54
99%
IMR 4831
<<locked>>
94%
55230
89%
**84
100%
IMR 4955 Enduron
<<locked>>
97%
55506
89%
**77
97%
IMR 7828 SSC
<<locked>>
97%
55622
89%
**76
98%
Lovex S065
<<locked>>
88%
56043
90%
**54
100%
Lovex S070
<<locked>>
89%
55898
90%
**74
100%
Lovex S071
<<locked>>
97%
44425
71%
**03
99%
Norma 204
<<locked>>
90%
56086
90%
**20
98%
Norma MRP
<<locked>>
96%
55840
90%
**05
100%
Norma URP
<<locked>>
90%
55564
89%
**04
100%
Ramshot Hunter 👍
<<locked>>
91%
55927
90%
**30
100%
Ramshot Magnum
<<locked>>
97%
51517
83%
**97
99%
ReloadSwiss RS 14
<<locked>>
96%
35534
57%
**04
100%
ReloadSwiss RS 60
<<locked>>
87%
55970
90%
**79
100%
ReloadSwiss RS 62
<<locked>>
89%
56086
90%
**36
100%
ReloadSwiss RS 70
<<locked>>
90%
55622
89%
**72
100%
ReloadSwiss RS 76
<<locked>>
97%
42714
68%
**18
98%
Rottweil R 903
<<locked>>
85%
55492
89%
**51
100%
Rottweil R 904
<<locked>>
94%
56101
90%
**94
98%
Rottweil R 905
<<locked>>
95%
55448
89%
**30
99%
Rottweil R 907
<<locked>>
87%
56028
90%
**64
99%
SNPE Vectan SP 11
<<locked>>
84%
55550
89%
**81
100%
SNPE Vectan Tubal 5000
<<locked>>
84%
55883
90%
**23
100%
SNPE Vectan Tubal 7000
<<locked>>
88%
55666
89%
**08
99%
Shooters World Long Rifle
<<locked>>
88%
56043
90%
**54
100%
Somchem S355
<<locked>>
85%
55550
89%
**41
100%
Somchem S361
<<locked>>
93%
55941
90%
**51
97%
Somchem S365
<<locked>>
92%
55535
89%
**17
100%
Somchem S385
<<locked>>
95%
56072
90%
**00
99%
Vihtavuori N135
<<locked>>
86%
55825
90%
**59
100%
Vihtavuori N150
<<locked>>
90%
55970
90%
**12
100%
Vihtavuori N160
<<locked>>
88%
56101
90%
**77
100%
Vihtavuori N165
<<locked>>
97%
49908
80%
**92
98%
Vihtavuori N550
<<locked>>
87%
56101
90%
**13
100%
Vihtavuori N555 👍
<<locked>>
96%
55782
89%
**36
100%
Vihtavuori N560
<<locked>>
97%
53751
86%
**66
97%
Vihtavuori N565
<<locked>>
97%
45484
73%
**92
95%
Winchester 6.5 StaBALL
<<locked>>
89%
56101
90%
**44
100%
Winchester 760
<<locked>>
85%
56014
90%
**33
100%
Winchester StaBALL HD 👍
<<locked>>
97%
45977
74%
**30
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2208
<<locked>>
81%
51111
82%
**69
100%
[ADI AR 2209]*
<<locked>>
81%
35679
57%
**33
93%
[ADI AR 2213]*
<<locked>>
84%
34722
56%
**26
90%
[ADI AR 2217]*
<<locked>>
93%
35244
57%
**26
90%
[ADI AR 2225]*
<<locked>>
91%
29240
47%
**08
90%
Accurate 2700
<<locked>>
81%
49458
79%
**03
98%
[Accurate 3100]*
<<locked>>
81%
31241
50%
**08
94%
Accurate 4350
<<locked>>
81%
42351
68%
**80
99%
[Accurate MAGPRO]*
<<locked>>
88%
38638
62%
**54
90%
Alliant Reloder- TS 15.5
<<locked>>
81%
51793
83%
**89
100%
Alliant Reloder-16
<<locked>>
81%
40669
65%
**80
99%
Alliant Reloder-17
<<locked>>
81%
46760
75%
**05
100%
[Alliant Reloder-19]*
<<locked>>
81%
35520
57%
**33
93%
[Alliant Reloder-22]*
<<locked>>
81%
31299
50%
**57
91%
Alliant Reloder-23
<<locked>>
81%
30081
48%
**34
98%
[Alliant Reloder-25]*
<<locked>>
81%
26498
42%
**29
91%
Alliant Reloder-26
<<locked>>
81%
32430
52%
**52
96%
[Hodgdon H1000]*
<<locked>>
93%
35244
57%
**26
90%
Hodgdon H414
<<locked>>
81%
47964
77%
**92
99%
Hodgdon H4350
<<locked>>
81%
39291
63%
**66
96%
[Hodgdon H4831]*
<<locked>>
86%
35375
57%
**03
90%
[Hodgdon H4831 SC]*
<<locked>>
83%
35375
57%
**03
90%
Hodgdon Hybrid 100V
<<locked>>
81%
38522
62%
**79
100%
Hodgdon LVR
<<locked>>
81%
45078
72%
**30
99%
[Hodgdon Retumbo]*
<<locked>>
91%
29240
47%
**08
90%
Hodgdon Superperformance
<<locked>>
81%
43207
69%
**40
97%
Hodgdon VARGET
<<locked>>
81%
50662
81%
**62
100%
Hodgdon TrailBoss
<<locked>>
84%
29443
47%
**50
100%
IMR 4064
<<locked>>
81%
50198
80%
**43
100%
IMR 4166 Enduron
<<locked>>
81%
49240
79%
**23
99%
IMR 4350
<<locked>>
81%
41394
66%
**15
97%
IMR 4451 Enduron
<<locked>>
81%
47355
76%
**10
98%
IMR 4831
<<locked>>
81%
36898
59%
**49
98%
[IMR 4955 Enduron]*
<<locked>>
82%
34722
56%
**57
90%
[IMR 7828 SSC]*
<<locked>>
83%
34534
55%
**39
90%
Lovex S065
<<locked>>
81%
44802
72%
**64
99%
Lovex S070
<<locked>>
81%
42946
69%
**48
98%
[Lovex S071]*
<<locked>>
81%
26948
43%
**80
92%
Norma 204
<<locked>>
81%
40901
66%
**38
95%
[Norma MRP]*
<<locked>>
81%
32619
52%
**26
93%
Norma URP
<<locked>>
81%
41640
67%
**64
99%
Ramshot Hunter
<<locked>>
81%
40640
65%
**57
98%
[Ramshot Magnum]*
<<locked>>
82%
29544
47%
**02
90%
ReloadSwiss RS 14
<<locked>>
81%
28543
46%
**54
100%
ReloadSwiss RS 60
<<locked>>
81%
45092
72%
**05
100%
ReloadSwiss RS 62
<<locked>>
81%
42134
68%
**97
99%
ReloadSwiss RS 70
<<locked>>
81%
40480
65%
**03
99%
[ReloadSwiss RS 76]*
<<locked>>
86%
29501
47%
**44
90%
Rottweil R 903
<<locked>>
81%
49472
79%
**56
100%
[Rottweil R 904]*
<<locked>>
81%
36970
59%
**16
92%
[Rottweil R 905]*
<<locked>>
81%
34664
56%
**13
93%
Rottweil R 907
<<locked>>
81%
45876
74%
**80
98%
SNPE Vectan SP 11
<<locked>>
81%
50894
82%
**08
100%
SNPE Vectan Tubal 5000
<<locked>>
81%
50401
81%
**51
100%
SNPE Vectan Tubal 7000
<<locked>>
81%
44005
71%
**12
98%
Shooters World Long Rifle
<<locked>>
81%
44802
72%
**64
99%
Somchem S355
<<locked>>
81%
49617
80%
**53
100%
[Somchem S361]*
<<locked>>
81%
37507
60%
**03
91%
Somchem S365
<<locked>>
81%
38363
62%
**25
100%
[Somchem S385]*
<<locked>>
81%
35215
56%
**00
94%
Vihtavuori N135
<<locked>>
81%
48298
77%
**54
100%
Vihtavuori N150
<<locked>>
81%
42670
68%
**02
100%
Vihtavuori N160
<<locked>>
81%
44947
72%
**97
100%
[Vihtavuori N165]*
<<locked>>
81%
29443
47%
**43
91%
Vihtavuori N550
<<locked>>
81%
45745
73%
**43
100%
Vihtavuori N555
<<locked>>
81%
33663
54%
**13
98%
[Vihtavuori N560]*
<<locked>>
85%
35520
57%
**82
90%
[Vihtavuori N565]*
<<locked>>
88%
33997
55%
**39
90%
Winchester 6.5 StaBALL
<<locked>>
81%
42337
68%
**31
100%
Winchester 760
<<locked>>
81%
47964
77%
**92
99%
Winchester StaBALL HD
<<locked>>
81%
24178
39%
**11
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.

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