top of page

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

Recommended Powder(s): Alliant Reloder-26, Ramshot Hunter, Somchem S385, 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:
2025-02-02

Load data for 142 loads in caliber .300 Win. Mag. with .308 | 180gr | Barnes X S bullet and 71 powders such as Alliant Reloder-26, Ramshot Hunter, Somchem S385, 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".

  • Muzzle velocity vs. barrel length

    Every 1 inch additional barrel length increases muzzle velocity by approx. 31.2 fps

  • 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.

    .

    Loading_icon.gif

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%
55782
89%
**82
100%
ADI AR 2209
<<locked>>
94%
55521
89%
**81
98%
ADI AR 2213
<<locked>>
97%
53824
86%
**77
97%
[ADI AR 2217]*
<<locked>>
97%
40147
64%
**89
92%
ADI AR 2225
<<locked>>
97%
36434
58%
**66
95%
Accurate 2700
<<locked>>
84%
55506
89%
**40
99%
Accurate 3100
<<locked>>
97%
54998
88%
**22
100%
Accurate 4350
<<locked>>
88%
55608
89%
**48
100%
Accurate MAGPRO
<<locked>>
97%
52953
85%
**81
95%
Alliant Reloder-16
<<locked>>
91%
55854
90%
**97
100%
Alliant Reloder-17
<<locked>>
86%
55608
89%
**94
100%
Alliant Reloder-19
<<locked>>
95%
55651
89%
**74
98%
Alliant Reloder-22
<<locked>>
97%
53505
86%
**87
98%
Alliant Reloder-23
<<locked>>
97%
51053
82%
**31
100%
Alliant Reloder-25
<<locked>>
97%
44309
71%
**53
99%
Alliant Reloder-26 👍
<<locked>>
96%
55825
90%
**89
100%
[Hodgdon H1000]*
<<locked>>
97%
40147
64%
**89
92%
Hodgdon H414
<<locked>>
85%
55796
89%
**67
99%
Hodgdon H4350
<<locked>>
92%
55579
89%
**18
99%
Hodgdon H4831
<<locked>>
97%
50357
81%
**66
95%
Hodgdon H4831 SC
<<locked>>
96%
55622
89%
**44
96%
Hodgdon Hybrid 100V
<<locked>>
92%
55666
89%
**12
100%
Hodgdon LVR
<<locked>>
87%
56101
90%
**58
100%
Hodgdon Retumbo
<<locked>>
97%
36434
58%
**66
95%
Hodgdon Superperformance
<<locked>>
88%
56028
90%
**13
99%
Hodgdon VARGET
<<locked>>
84%
55622
89%
**82
100%
Hodgdon TrailBoss
<<locked>>
97%
35520
57%
**22
100%
IMR 4064
<<locked>>
84%
55796
89%
**72
100%
IMR 4166 Enduron
<<locked>>
85%
56072
90%
**76
99%
IMR 4350
<<locked>>
90%
55376
89%
**08
99%
IMR 4451 Enduron
<<locked>>
86%
55332
89%
**89
99%
IMR 4831
<<locked>>
94%
55259
89%
**25
100%
IMR 4955 Enduron
<<locked>>
97%
55651
89%
**18
97%
IMR 7828 SSC
<<locked>>
97%
55550
89%
**17
97%
Lovex S065
<<locked>>
87%
55085
88%
**79
100%
Lovex S070
<<locked>>
89%
56043
90%
**12
99%
Lovex S071
<<locked>>
97%
46267
74%
**74
99%
Norma 204
<<locked>>
90%
55129
88%
**41
98%
[Norma 217]*
<<locked>>
97%
32547
52%
**97
92%
Norma MRP
<<locked>>
96%
55622
89%
**53
99%
Norma URP
<<locked>>
90%
55912
90%
**58
100%
Ramshot Hunter 👍
<<locked>>
91%
55927
90%
**74
100%
Ramshot Magnum
<<locked>>
97%
52257
84%
**44
98%
ReloadSwiss RS 14
<<locked>>
96%
35998
58%
**62
100%
ReloadSwiss RS 60
<<locked>>
87%
55883
90%
**20
100%
ReloadSwiss RS 62
<<locked>>
89%
55825
90%
**77
100%
ReloadSwiss RS 70
<<locked>>
90%
55666
89%
**27
100%
ReloadSwiss RS 76
<<locked>>
97%
43221
69%
**69
97%
Rottweil R 903
<<locked>>
84%
55463
89%
**85
100%
Rottweil R 904
<<locked>>
94%
56028
90%
**28
97%
Rottweil R 905
<<locked>>
95%
55303
89%
**64
98%
Rottweil R 907
<<locked>>
87%
55825
90%
**99
99%
SNPE Vectan SP 11
<<locked>>
83%
55651
89%
**31
100%
SNPE Vectan Tubal 5000
<<locked>>
84%
55579
89%
**64
100%
SNPE Vectan Tubal 7000
<<locked>>
88%
55956
90%
**53
99%
Shooters World Long Rifle
<<locked>>
87%
55085
88%
**79
100%
Somchem S355
<<locked>>
84%
55883
90%
**92
100%
Somchem S361
<<locked>>
92%
55405
89%
**82
96%
Somchem S365
<<locked>>
92%
55796
89%
**64
100%
Somchem S385 👍
<<locked>>
95%
55854
90%
**38
99%
Vihtavuori N135
<<locked>>
85%
55492
89%
**94
100%
Vihtavuori N150
<<locked>>
89%
56072
90%
**49
100%
Vihtavuori N160
<<locked>>
87%
55492
89%
**12
100%
Vihtavuori N165
<<locked>>
97%
50038
80%
**40
98%
Vihtavuori N550
<<locked>>
87%
56043
90%
**54
100%
Vihtavuori N555 👍
<<locked>>
96%
55448
89%
**77
100%
Vihtavuori N560
<<locked>>
97%
53722
86%
**13
96%
Vihtavuori N565
<<locked>>
97%
46775
75%
**66
95%
Winchester 6.5 StaBALL
<<locked>>
89%
55883
90%
**92
100%
Winchester 760
<<locked>>
85%
55796
89%
**67
99%
Winchester StaBALL HD 👍
<<locked>>
97%
45701
73%
**94
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2208
<<locked>>
81%
51779
83%
**20
100%
[ADI AR 2209]*
<<locked>>
81%
36970
59%
**10
93%
[ADI AR 2213]*
<<locked>>
84%
36013
58%
**00
90%
[ADI AR 2217]*
<<locked>>
93%
36274
58%
**93
90%
[ADI AR 2225]*
<<locked>>
90%
30182
48%
**79
90%
Accurate 2700
<<locked>>
81%
50270
81%
**61
98%
Accurate 3100
<<locked>>
81%
33779
54%
**15
95%
Accurate 4350
<<locked>>
81%
44338
71%
**54
99%
[Accurate MAGPRO]*
<<locked>>
88%
39784
64%
**25
90%
Alliant Reloder-16
<<locked>>
81%
41684
67%
**48
99%
Alliant Reloder-17
<<locked>>
81%
47369
76%
**66
100%
[Alliant Reloder-19]*
<<locked>>
81%
36927
59%
**07
93%
[Alliant Reloder-22]*
<<locked>>
81%
33054
53%
**54
91%
Alliant Reloder-23
<<locked>>
81%
31966
51%
**38
98%
[Alliant Reloder-25]*
<<locked>>
81%
28529
46%
**36
93%
Alliant Reloder-26
<<locked>>
81%
34229
55%
**49
97%
[Hodgdon H1000]*
<<locked>>
93%
36274
58%
**93
90%
Hodgdon H414
<<locked>>
81%
49168
79%
**56
98%
Hodgdon H4350
<<locked>>
81%
40669
65%
**39
96%
[Hodgdon H4831]*
<<locked>>
86%
36811
59%
**87
90%
[Hodgdon H4831 SC]*
<<locked>>
83%
36651
59%
**74
90%
Hodgdon Hybrid 100V
<<locked>>
81%
39784
64%
**46
100%
Hodgdon LVR
<<locked>>
81%
46021
74%
**84
99%
[Hodgdon Retumbo]*
<<locked>>
90%
30182
48%
**79
90%
Hodgdon Superperformance
<<locked>>
81%
44135
71%
**00
97%
Hodgdon VARGET
<<locked>>
81%
51416
82%
**17
100%
Hodgdon TrailBoss
<<locked>>
88%
31386
50%
**40
100%
IMR 4064
<<locked>>
81%
50981
82%
**97
100%
IMR 4166 Enduron
<<locked>>
81%
49835
80%
**77
99%
IMR 4350
<<locked>>
81%
42264
68%
**75
96%
IMR 4451 Enduron
<<locked>>
81%
48327
77%
**71
98%
IMR 4831
<<locked>>
81%
38464
62%
**23
98%
[IMR 4955 Enduron]*
<<locked>>
81%
35752
57%
**28
90%
[IMR 7828 SSC]*
<<locked>>
83%
35781
57%
**10
90%
Lovex S065
<<locked>>
81%
46427
74%
**31
99%
Lovex S070
<<locked>>
81%
44483
71%
**18
98%
[Lovex S071]*
<<locked>>
81%
29776
48%
**06
93%
Norma 204
<<locked>>
81%
41974
67%
**08
95%
[Norma 217]*
<<locked>>
94%
30443
49%
**31
90%
[Norma MRP]*
<<locked>>
81%
34403
55%
**16
94%
Norma URP
<<locked>>
81%
43105
69%
**38
99%
Ramshot Hunter
<<locked>>
81%
41582
67%
**21
98%
[Ramshot Magnum]*
<<locked>>
81%
30879
50%
**79
91%
ReloadSwiss RS 14
<<locked>>
83%
30124
48%
**40
100%
ReloadSwiss RS 60
<<locked>>
81%
45774
73%
**66
100%
ReloadSwiss RS 62
<<locked>>
81%
43729
70%
**67
99%
ReloadSwiss RS 70
<<locked>>
81%
41843
67%
**71
99%
[ReloadSwiss RS 76]*
<<locked>>
85%
30342
49%
**15
90%
Rottweil R 903
<<locked>>
81%
51155
82%
**23
100%
[Rottweil R 904]*
<<locked>>
81%
38421
62%
**00
92%
[Rottweil R 905]*
<<locked>>
81%
36230
58%
**93
93%
Rottweil R 907
<<locked>>
81%
47311
76%
**51
98%
SNPE Vectan SP 11
<<locked>>
81%
51532
83%
**66
100%
SNPE Vectan Tubal 5000
<<locked>>
81%
51285
82%
**08
100%
SNPE Vectan Tubal 7000
<<locked>>
81%
45455
73%
**82
98%
Shooters World Long Rifle
<<locked>>
81%
46427
74%
**31
99%
Somchem S355
<<locked>>
81%
50894
82%
**13
100%
[Somchem S361]*
<<locked>>
81%
39276
63%
**87
92%
Somchem S365
<<locked>>
81%
39827
64%
**05
100%
Somchem S385
<<locked>>
81%
37115
60%
**90
95%
Vihtavuori N135
<<locked>>
81%
49951
80%
**15
100%
Vihtavuori N150
<<locked>>
81%
44150
71%
**66
100%
Vihtavuori N160
<<locked>>
81%
46209
74%
**61
100%
[Vihtavuori N165]*
<<locked>>
81%
31430
50%
**39
91%
Vihtavuori N550
<<locked>>
81%
46862
75%
**00
100%
Vihtavuori N555
<<locked>>
81%
35853
57%
**13
98%
[Vihtavuori N560]*
<<locked>>
83%
35940
58%
**33
90%
[Vihtavuori N565]*
<<locked>>
87%
34592
55%
**03
90%
Winchester 6.5 StaBALL
<<locked>>
81%
43482
70%
**02
100%
Winchester 760
<<locked>>
81%
49168
79%
**56
98%
Winchester StaBALL HD
<<locked>>
81%
28848
46%
**41
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

bottom of page