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Load data for .300 Win. Mag. + .308 | 180gr | Swift A-Frame

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

.300 Win. Mag. + .308 | 180gr | Swift A-Frame

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.308 | 180gr | Swift A-Frame
Bullet Weight:
180gr | 11.7g
Bullet Diameter:
0.308" | 7.82mm
Bullet Length:
1.215" | 30.9mm
Caliber:
.300 Win. Mag. load data
Case Length (l3):
2.620" | 66.5mm
Cartridge Length (C.O.L.):
3.290" | 83.6mm
Seated Depth:
0.545" | 13.8mm
Shank Seated Depth:
0.545" | 13.8mm
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_B10847_C380
Last updated:
2025-12-18

Load data for 158 loads in caliber .300 Win. Mag. with .308 | 180gr | Swift A-Frame bullet and 79 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%
55230
89%
**89
100%
ADI AR 2209
<<locked>>
96%
56072
90%
**94
98%
ADI AR 2213
<<locked>>
97%
52852
85%
**67
96%
[ADI AR 2217]*
<<locked>>
97%
39044
63%
**79
92%
[ADI AR 2225]*
<<locked>>
97%
34606
55%
**30
94%
Accurate 2700
<<locked>>
85%
55724
89%
**56
99%
Accurate 3100
<<locked>>
97%
52562
84%
**95
99%
Accurate 4350
<<locked>>
89%
55869
90%
**64
100%
[Accurate MAGPRO]*
<<locked>>
97%
51300
82%
**71
94%
Alliant Reloder- TS 15.5
<<locked>>
84%
55637
89%
**02
100%
Alliant Reloder-16
<<locked>>
91%
55927
90%
**10
100%
Alliant Reloder-17
<<locked>>
87%
55854
90%
**17
100%
Alliant Reloder-19
<<locked>>
95%
55608
89%
**84
98%
Alliant Reloder-22
<<locked>>
97%
52098
84%
**77
98%
Alliant Reloder-23
<<locked>>
97%
49110
79%
**12
100%
Alliant Reloder-25
<<locked>>
97%
43163
69%
**33
99%
Alliant Reloder-26 👍
<<locked>>
96%
55463
89%
**92
100%
Bofors RP15
<<locked>>
97%
48124
77%
**02
97%
Bofors RP3
<<locked>>
83%
55782
89%
**05
100%
[Bofors RP30]*
<<locked>>
97%
39218
63%
**44
93%
Bofors RP5
<<locked>>
97%
52098
84%
**77
98%
Bofors RP7
<<locked>>
87%
55622
89%
**02
99%
[Hodgdon H1000]*
<<locked>>
97%
39044
63%
**79
92%
Hodgdon H380
<<locked>>
83%
55912
90%
**28
100%
Hodgdon H414
<<locked>>
86%
55564
89%
**74
99%
Hodgdon H4350
<<locked>>
93%
55724
89%
**25
99%
Hodgdon H4831
<<locked>>
97%
48646
78%
**49
95%
Hodgdon H4831 SC
<<locked>>
97%
55434
89%
**64
96%
Hodgdon Hybrid 100V
<<locked>>
93%
55506
89%
**22
100%
Hodgdon LVR
<<locked>>
88%
55767
89%
**67
100%
[Hodgdon Retumbo]*
<<locked>>
97%
34606
55%
**30
94%
Hodgdon Superperformance
<<locked>>
89%
55927
90%
**17
99%
Hodgdon VARGET
<<locked>>
85%
55767
89%
**95
100%
Hodgdon TrailBoss
<<locked>>
96%
34911
56%
**22
100%
IMR 4064
<<locked>>
85%
56086
90%
**92
100%
IMR 4166 Enduron
<<locked>>
85%
55448
89%
**79
99%
IMR 4350
<<locked>>
91%
56057
90%
**31
99%
IMR 4451 Enduron
<<locked>>
87%
56057
90%
**12
99%
IMR 4831
<<locked>>
95%
55912
90%
**51
100%
IMR 4955 Enduron
<<locked>>
97%
54128
87%
**02
96%
IMR 7828 SSC
<<locked>>
97%
53693
86%
**97
97%
Lovex S065
<<locked>>
88%
55709
89%
**08
100%
Lovex S070
<<locked>>
90%
55709
89%
**22
99%
Lovex S071
<<locked>>
97%
44367
71%
**57
98%
Norma 204
<<locked>>
91%
55796
89%
**67
98%
Norma MRP
<<locked>>
97%
55303
89%
**59
99%
Norma URP
<<locked>>
90%
55999
90%
**71
100%
Ramshot Grand
<<locked>>
96%
56043
90%
**46
98%
Ramshot Hunter 👍
<<locked>>
91%
55767
89%
**84
100%
Ramshot Magnum
<<locked>>
97%
50024
80%
**22
98%
ReloadSwiss RS 14
<<locked>>
96%
35694
57%
**62
100%
ReloadSwiss RS 50
<<locked>>
83%
55564
89%
**05
100%
ReloadSwiss RS 60
<<locked>>
85%
55840
90%
**13
100%
ReloadSwiss RS 62
<<locked>>
90%
56086
90%
**87
100%
ReloadSwiss RS 70 👍
<<locked>>
91%
55405
89%
**33
100%
ReloadSwiss RS 76
<<locked>>
97%
41727
67%
**43
97%
Rottweil R 903
<<locked>>
85%
55535
89%
**02
100%
Rottweil R 904
<<locked>>
94%
55854
90%
**38
97%
Rottweil R 905
<<locked>>
96%
55927
90%
**90
98%
Rottweil R 907
<<locked>>
87%
55622
89%
**02
99%
SNPE Vectan SP 11
<<locked>>
84%
55405
89%
**41
100%
SNPE Vectan Tubal 5000
<<locked>>
85%
56072
90%
**87
100%
SNPE Vectan Tubal 7000
<<locked>>
89%
55550
89%
**62
99%
Shooters World Long Rifle
<<locked>>
88%
55709
89%
**08
100%
Somchem S355
<<locked>>
85%
55463
89%
**95
100%
Somchem S361
<<locked>>
93%
55680
89%
**08
96%
Somchem S365
<<locked>>
93%
55361
89%
**67
100%
Somchem S385
<<locked>>
96%
55927
90%
**54
99%
Vihtavuori N135
<<locked>>
86%
55811
89%
**10
100%
Vihtavuori N150
<<locked>>
90%
55709
89%
**62
100%
Vihtavuori N160
<<locked>>
88%
55927
90%
**28
100%
Vihtavuori N165
<<locked>>
97%
48994
79%
**30
98%
Vihtavuori N550
<<locked>>
88%
55666
89%
**64
100%
Vihtavuori N555 👍
<<locked>>
97%
55027
88%
**87
100%
Vihtavuori N560
<<locked>>
97%
51967
83%
**94
96%
[Vihtavuori N565]*
<<locked>>
97%
44382
71%
**36
94%
Winchester 6.5 StaBALL
<<locked>>
90%
55811
89%
**99
100%
Winchester 760
<<locked>>
86%
55564
89%
**74
99%
Winchester StaBALL HD 👍
<<locked>>
97%
44440
71%
**81
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2208
<<locked>>
81%
50604
81%
**13
100%
[ADI AR 2209]*
<<locked>>
81%
35607
57%
**87
92%
[ADI AR 2213]*
<<locked>>
84%
35418
57%
**03
90%
[ADI AR 2217]*
<<locked>>
94%
36129
58%
**10
90%
[ADI AR 2225]*
<<locked>>
92%
29834
48%
**88
90%
Accurate 2700
<<locked>>
81%
48994
79%
**48
98%
[Accurate 3100]*
<<locked>>
81%
31720
51%
**79
94%
Accurate 4350
<<locked>>
81%
42250
68%
**28
99%
[Accurate MAGPRO]*
<<locked>>
89%
39871
64%
**41
90%
Alliant Reloder- TS 15.5
<<locked>>
81%
51430
82%
**43
100%
Alliant Reloder-16
<<locked>>
81%
40306
65%
**31
99%
Alliant Reloder-17
<<locked>>
81%
45948
74%
**53
100%
[Alliant Reloder-19]*
<<locked>>
81%
35433
57%
**87
93%
[Alliant Reloder-22]*
<<locked>>
81%
31444
50%
**25
90%
Alliant Reloder-23
<<locked>>
81%
30356
49%
**02
98%
[Alliant Reloder-25]*
<<locked>>
81%
26890
43%
**93
91%
Alliant Reloder-26
<<locked>>
81%
32634
52%
**23
96%
[Bofors RP15]*
<<locked>>
83%
31459
50%
**15
90%
Bofors RP3
<<locked>>
81%
52315
84%
**56
100%
[Bofors RP30]*
<<locked>>
92%
33489
54%
**07
90%
[Bofors RP5]*
<<locked>>
81%
31444
50%
**25
90%
Bofors RP7
<<locked>>
81%
45745
73%
**35
97%
[Hodgdon H1000]*
<<locked>>
94%
36129
58%
**10
90%
Hodgdon H380
<<locked>>
81%
52170
84%
**66
100%
Hodgdon H414
<<locked>>
81%
47282
76%
**40
98%
Hodgdon H4350
<<locked>>
81%
39276
63%
**23
95%
[Hodgdon H4831]*
<<locked>>
87%
36230
58%
**84
90%
[Hodgdon H4831 SC]*
<<locked>>
84%
36550
59%
**87
90%
Hodgdon Hybrid 100V
<<locked>>
81%
38087
61%
**30
100%
Hodgdon LVR
<<locked>>
81%
44425
71%
**71
99%
[Hodgdon Retumbo]*
<<locked>>
92%
29834
48%
**88
90%
Hodgdon Superperformance
<<locked>>
81%
42409
68%
**77
97%
Hodgdon VARGET
<<locked>>
81%
50241
81%
**10
100%
Hodgdon TrailBoss
<<locked>>
88%
31401
50%
**54
100%
IMR 4064
<<locked>>
81%
49705
80%
**90
100%
IMR 4166 Enduron
<<locked>>
81%
48559
78%
**67
98%
IMR 4350
<<locked>>
81%
41147
66%
**62
96%
IMR 4451 Enduron
<<locked>>
81%
46644
75%
**54
98%
IMR 4831
<<locked>>
81%
36811
59%
**07
98%
[IMR 4955 Enduron]*
<<locked>>
82%
35244
57%
**28
90%
[IMR 7828 SSC]*
<<locked>>
84%
35447
57%
**16
90%
Lovex S065
<<locked>>
81%
44875
72%
**21
99%
Lovex S070
<<locked>>
81%
42960
69%
**98
97%
[Lovex S071]*
<<locked>>
81%
27557
44%
**64
92%
[Norma 204]*
<<locked>>
81%
40524
65%
**85
94%
[Norma MRP]*
<<locked>>
81%
32634
52%
**87
93%
Norma URP
<<locked>>
81%
41597
67%
**18
99%
[Ramshot Grand]*
<<locked>>
83%
35027
56%
**16
90%
Ramshot Hunter
<<locked>>
81%
40016
64%
**05
97%
[Ramshot Magnum]*
<<locked>>
82%
30255
49%
**75
90%
ReloadSwiss RS 14
<<locked>>
84%
29878
48%
**44
100%
ReloadSwiss RS 50
<<locked>>
81%
51793
83%
**49
99%
ReloadSwiss RS 60
<<locked>>
81%
48747
78%
**02
100%
ReloadSwiss RS 62
<<locked>>
81%
41582
67%
**38
99%
ReloadSwiss RS 70
<<locked>>
81%
40147
64%
**48
98%
[ReloadSwiss RS 76]*
<<locked>>
87%
30414
49%
**25
90%
Rottweil R 903
<<locked>>
81%
49414
79%
**07
100%
[Rottweil R 904]*
<<locked>>
81%
37043
59%
**77
92%
[Rottweil R 905]*
<<locked>>
81%
34534
55%
**70
92%
Rottweil R 907
<<locked>>
81%
45745
73%
**35
97%
SNPE Vectan SP 11
<<locked>>
81%
49922
80%
**49
100%
SNPE Vectan Tubal 5000
<<locked>>
81%
49835
80%
**95
100%
SNPE Vectan Tubal 7000
<<locked>>
81%
43801
70%
**62
97%
Shooters World Long Rifle
<<locked>>
81%
44875
72%
**21
99%
Somchem S355
<<locked>>
81%
49284
79%
**97
100%
[Somchem S361]*
<<locked>>
81%
37637
60%
**67
91%
Somchem S365
<<locked>>
81%
37985
61%
**82
100%
[Somchem S385]*
<<locked>>
81%
35331
57%
**64
94%
Vihtavuori N135
<<locked>>
81%
47964
77%
**02
100%
Vihtavuori N150
<<locked>>
81%
42757
69%
**56
100%
Vihtavuori N160
<<locked>>
81%
44686
72%
**41
99%
[Vihtavuori N165]*
<<locked>>
81%
29791
48%
**10
90%
Vihtavuori N550
<<locked>>
81%
45179
72%
**87
99%
Vihtavuori N555
<<locked>>
81%
33692
54%
**87
98%
[Vihtavuori N560]*
<<locked>>
86%
36361
58%
**59
90%
[Vihtavuori N565]*
<<locked>>
89%
34867
56%
**16
90%
Winchester 6.5 StaBALL
<<locked>>
81%
41742
67%
**79
100%
Winchester 760
<<locked>>
81%
47282
76%
**40
98%
Winchester StaBALL HD
<<locked>>
81%
27021
43%
**92
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.

<<locked>>... you need to buy an access license to unlock the data

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