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Load data for .300 Win. Mag. + .308 | 180gr | Barnes X S

Recommended Powder(s): Alliant Reloder-26, Ramshot Hunter, ReloadSwiss RS 70, Vihtavuori N555, Winchester StaBALL HD

.300 Win. Mag. + .308 | 180gr | Barnes X S

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.308 | 180gr | Barnes X S
Manufacturer SKU:
30835
Bullet Weight:
180gr | 11.7g
Bullet Diameter:
0.308" | 7.82mm
Bullet Length:
1.350" | 34.3mm
Caliber:
.300 Win. Mag. load data
Case Length (l3):
2.620" | 66.5mm
Cartridge Length (C.O.L.):
3.290" | 83.6mm
Seated Depth:
0.680" | 17.3mm
Shank Seated Depth:
0.680" | 17.3mm
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_B636_C380
Last updated:
2025-12-22

Load data for 150 loads in caliber .300 Win. Mag. with .308 | 180gr | Barnes X S bullet and 75 powders such as Alliant Reloder-26, Ramshot Hunter, ReloadSwiss RS 70, 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".

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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>>
84%
55695
89%
**72
100%
ADI AR 2209
<<locked>>
95%
55709
89%
**67
98%
ADI AR 2213
<<locked>>
97%
52605
84%
**48
96%
[ADI AR 2225]*
<<locked>>
97%
35752
57%
**36
94%
Accurate 2700
<<locked>>
85%
55767
89%
**36
99%
Accurate 3100
<<locked>>
97%
53519
86%
**92
99%
Accurate 4350
<<locked>>
89%
55695
89%
**38
100%
[Accurate MAGPRO]*
<<locked>>
97%
51184
82%
**44
94%
Alliant Reloder- TS 15.5
<<locked>>
83%
55695
89%
**85
100%
Alliant Reloder-16
<<locked>>
91%
55695
89%
**90
100%
Alliant Reloder-17
<<locked>>
86%
55767
89%
**94
100%
Alliant Reloder-19
<<locked>>
96%
55825
90%
**74
98%
Alliant Reloder-22
<<locked>>
97%
52141
84%
**58
98%
Alliant Reloder-23
<<locked>>
97%
49559
79%
**02
100%
Alliant Reloder-25
<<locked>>
97%
43874
70%
**30
99%
Alliant Reloder-26 👍
<<locked>>
96%
55695
89%
**76
100%
Bofors RP15
<<locked>>
97%
48008
77%
**85
97%
[Bofors RP30]*
<<locked>>
97%
40321
65%
**54
93%
Bofors RP5
<<locked>>
97%
52141
84%
**58
98%
Bofors RP7
<<locked>>
87%
55956
90%
**85
99%
Hodgdon H414
<<locked>>
86%
55361
89%
**58
99%
Hodgdon H4350
<<locked>>
93%
55811
89%
**05
99%
Hodgdon H4831
<<locked>>
97%
49023
79%
**30
95%
Hodgdon H4831 SC
<<locked>>
97%
54911
88%
**28
96%
Hodgdon Hybrid 100V
<<locked>>
93%
55622
89%
**08
100%
Hodgdon LVR
<<locked>>
88%
55956
90%
**41
100%
[Hodgdon Retumbo]*
<<locked>>
97%
35752
57%
**36
94%
Hodgdon Superperformance
<<locked>>
89%
55898
90%
**04
99%
Hodgdon VARGET
<<locked>>
84%
55492
89%
**72
100%
Hodgdon TrailBoss
<<locked>>
96%
35433
57%
**13
100%
IMR 4064
<<locked>>
85%
55854
90%
**69
100%
IMR 4166 Enduron
<<locked>>
86%
56014
90%
**62
99%
IMR 4350
<<locked>>
91%
55593
89%
**05
99%
IMR 4451 Enduron
<<locked>>
87%
55970
90%
**95
99%
IMR 4831
<<locked>>
94%
55535
89%
**25
100%
IMR 4955 Enduron
<<locked>>
97%
54563
87%
**92
96%
IMR 7828 SSC
<<locked>>
97%
54360
87%
**90
97%
Lovex S065
<<locked>>
88%
55854
90%
**85
100%
Lovex S070
<<locked>>
89%
56072
90%
**08
99%
Lovex S071
<<locked>>
97%
45614
73%
**57
98%
Norma 204
<<locked>>
91%
56101
90%
**48
98%
Norma MRP
<<locked>>
97%
54926
88%
**30
99%
Norma URP
<<locked>>
90%
56101
90%
**54
100%
Ramshot Grand
<<locked>>
96%
55840
90%
**27
97%
Ramshot Hunter 👍
<<locked>>
91%
56043
90%
**74
100%
Ramshot Magnum
<<locked>>
97%
50908
82%
**12
98%
ReloadSwiss RS 14
<<locked>>
97%
36230
58%
**55
100%
ReloadSwiss RS 50
<<locked>>
83%
56101
90%
**95
100%
ReloadSwiss RS 60
<<locked>>
85%
55550
89%
**87
100%
ReloadSwiss RS 62
<<locked>>
89%
55521
89%
**64
100%
ReloadSwiss RS 70 👍
<<locked>>
91%
55477
89%
**17
100%
ReloadSwiss RS 76
<<locked>>
97%
42844
69%
**53
97%
Rottweil R 903
<<locked>>
85%
56014
90%
**85
100%
Rottweil R 904
<<locked>>
94%
55361
89%
**08
97%
Rottweil R 905
<<locked>>
96%
55245
89%
**64
98%
Rottweil R 907
<<locked>>
87%
55956
90%
**85
99%
SNPE Vectan SP 11
<<locked>>
84%
55463
89%
**25
100%
SNPE Vectan Tubal 5000
<<locked>>
85%
56072
90%
**64
100%
SNPE Vectan Tubal 7000
<<locked>>
88%
55419
89%
**36
99%
Shooters World Long Rifle
<<locked>>
88%
55854
90%
**85
100%
Somchem S355
<<locked>>
85%
55869
90%
**85
100%
Somchem S361
<<locked>>
93%
55985
90%
**85
96%
Somchem S365
<<locked>>
93%
55796
89%
**64
100%
Somchem S385
<<locked>>
95%
55927
90%
**38
99%
Vihtavuori N135
<<locked>>
86%
55941
90%
**97
100%
Vihtavuori N150
<<locked>>
90%
55666
89%
**40
100%
Vihtavuori N160
<<locked>>
88%
55869
90%
**12
100%
Vihtavuori N165
<<locked>>
97%
48950
78%
**13
97%
Vihtavuori N550
<<locked>>
87%
56028
90%
**51
100%
Vihtavuori N555 👍
<<locked>>
97%
55825
90%
**81
100%
Vihtavuori N560
<<locked>>
97%
52707
85%
**77
96%
[Vihtavuori N565]*
<<locked>>
97%
45571
73%
**36
94%
Winchester 6.5 StaBALL
<<locked>>
90%
55724
89%
**82
100%
Winchester 760
<<locked>>
86%
55361
89%
**58
99%
Winchester StaBALL HD 👍
<<locked>>
97%
43947
70%
**54
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2208
<<locked>>
81%
51010
82%
**03
100%
[ADI AR 2209]*
<<locked>>
81%
36434
58%
**84
92%
[ADI AR 2213]*
<<locked>>
85%
36463
58%
**03
90%
[ADI AR 2225]*
<<locked>>
91%
30545
49%
**79
90%
Accurate 2700
<<locked>>
81%
49806
80%
**41
98%
Accurate 3100
<<locked>>
81%
33214
53%
**92
95%
Accurate 4350
<<locked>>
81%
43613
70%
**38
99%
[Accurate MAGPRO]*
<<locked>>
89%
40698
65%
**31
90%
Alliant Reloder- TS 15.5
<<locked>>
81%
52098
84%
**30
100%
Alliant Reloder-16
<<locked>>
81%
40959
66%
**21
99%
Alliant Reloder-17
<<locked>>
81%
46557
75%
**53
100%
[Alliant Reloder-19]*
<<locked>>
81%
36230
58%
**87
93%
[Alliant Reloder-22]*
<<locked>>
81%
32576
52%
**28
91%
Alliant Reloder-23
<<locked>>
81%
31401
50%
**11
98%
[Alliant Reloder-25]*
<<locked>>
81%
28123
45%
**16
92%
Alliant Reloder-26
<<locked>>
81%
33547
54%
**20
96%
[Bofors RP15]*
<<locked>>
82%
31778
51%
**08
90%
[Bofors RP30]*
<<locked>>
91%
34113
55%
**97
90%
[Bofors RP5]*
<<locked>>
81%
32576
52%
**28
91%
Bofors RP7
<<locked>>
81%
46644
75%
**25
97%
Hodgdon H414
<<locked>>
81%
48037
77%
**26
98%
Hodgdon H4350
<<locked>>
81%
40030
64%
**20
95%
[Hodgdon H4831]*
<<locked>>
87%
37231
60%
**87
90%
[Hodgdon H4831 SC]*
<<locked>>
84%
37391
60%
**90
90%
Hodgdon Hybrid 100V
<<locked>>
81%
39001
63%
**26
100%
Hodgdon LVR
<<locked>>
81%
45324
73%
**67
99%
[Hodgdon Retumbo]*
<<locked>>
91%
30545
49%
**79
90%
Hodgdon Superperformance
<<locked>>
81%
43279
69%
**74
97%
Hodgdon VARGET
<<locked>>
81%
50633
81%
**00
100%
Hodgdon TrailBoss
<<locked>>
89%
31807
51%
**40
100%
IMR 4064
<<locked>>
81%
50111
80%
**77
100%
IMR 4166 Enduron
<<locked>>
81%
49095
79%
**48
98%
IMR 4350
<<locked>>
81%
41655
67%
**52
96%
IMR 4451 Enduron
<<locked>>
81%
47137
76%
**38
98%
IMR 4831
<<locked>>
81%
37869
61%
**07
98%
[IMR 4955 Enduron]*
<<locked>>
82%
35679
57%
**18
90%
[IMR 7828 SSC]*
<<locked>>
84%
36056
58%
**07
90%
Lovex S065
<<locked>>
81%
45730
73%
**12
99%
Lovex S070
<<locked>>
81%
43830
70%
**92
97%
[Lovex S071]*
<<locked>>
81%
29080
47%
**80
93%
[Norma 204]*
<<locked>>
81%
41263
66%
**82
94%
[Norma MRP]*
<<locked>>
81%
33663
54%
**93
93%
Norma URP
<<locked>>
81%
42380
68%
**12
99%
[Ramshot Grand]*
<<locked>>
82%
35549
57%
**00
90%
Ramshot Hunter
<<locked>>
81%
41031
66%
**98
97%
[Ramshot Magnum]*
<<locked>>
81%
30748
49%
**65
90%
ReloadSwiss RS 14
<<locked>>
85%
30792
49%
**47
100%
ReloadSwiss RS 50
<<locked>>
81%
52924
85%
**43
99%
ReloadSwiss RS 60
<<locked>>
81%
49168
79%
**95
100%
ReloadSwiss RS 62
<<locked>>
81%
42569
68%
**38
99%
ReloadSwiss RS 70
<<locked>>
81%
40901
66%
**41
98%
[ReloadSwiss RS 76]*
<<locked>>
86%
31082
50%
**21
90%
Rottweil R 903
<<locked>>
81%
50372
81%
**00
100%
[Rottweil R 904]*
<<locked>>
81%
37826
61%
**70
92%
[Rottweil R 905]*
<<locked>>
81%
35621
57%
**74
93%
Rottweil R 907
<<locked>>
81%
46644
75%
**25
97%
SNPE Vectan SP 11
<<locked>>
81%
50705
81%
**43
100%
SNPE Vectan Tubal 5000
<<locked>>
81%
50459
81%
**85
100%
SNPE Vectan Tubal 7000
<<locked>>
81%
44904
72%
**59
97%
Shooters World Long Rifle
<<locked>>
81%
45730
73%
**12
99%
Somchem S355
<<locked>>
81%
50111
80%
**97
100%
[Somchem S361]*
<<locked>>
81%
38450
62%
**61
91%
Somchem S365
<<locked>>
81%
39088
63%
**79
100%
[Somchem S385]*
<<locked>>
81%
36579
59%
**67
94%
Vihtavuori N135
<<locked>>
81%
48849
78%
**92
100%
Vihtavuori N150
<<locked>>
81%
43308
69%
**46
100%
Vihtavuori N160
<<locked>>
81%
45194
72%
**35
99%
[Vihtavuori N165]*
<<locked>>
81%
30922
50%
**20
91%
Vihtavuori N550
<<locked>>
81%
46238
74%
**87
99%
Vihtavuori N555
<<locked>>
81%
35128
56%
**93
98%
[Vihtavuori N560]*
<<locked>>
85%
37014
59%
**46
90%
[Vihtavuori N565]*
<<locked>>
89%
35476
57%
**16
90%
Winchester 6.5 StaBALL
<<locked>>
81%
42583
68%
**72
100%
Winchester 760
<<locked>>
81%
48037
77%
**26
98%
Winchester StaBALL HD
<<locked>>
81%
28369
45%
**11
98%

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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