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Load data for .300 Weath. Mag. + .308 | 150gr | Speer FN

Recommended Powder(s): Alliant Reloder-16, Ramshot Hunter, ReloadSwiss RS 62, ReloadSwiss RS 70, Vihtavuori N555

.300 Weath. Mag. + .308 | 150gr | Speer FN

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.308 | 150gr | Speer FN
Manufacturer SKU:
2011
Bullet Weight:
150gr | 9.7g
Bullet Diameter:
0.308" | 7.82mm
Bullet Length:
0.916" | 23.3mm
Caliber:
.300 Weath. Mag. load data
Case Length (l3):
2.824" | 71.7mm
Cartridge Length (C.O.L.):
3.507" | 89.1mm
Seated Depth:
0.233" | 5.9mm
Shank Seated Depth:
0.233" | 5.9mm
Case Capacity:
98.9 Grains of Water | 6.42 cm³
Primer Size:
Large Rifle Magnum (LRM)
Max. allowed Pressure:
63817 psi | 4400 bar
LID:
LID_B6148_C379
Last updated:
2025-01-01

Load data for 144 loads in caliber .300 Weath. Mag. with .308 | 150gr | Speer FN bullet and 72 powders such as Alliant Reloder-16, Ramshot Hunter, ReloadSwiss RS 62, ReloadSwiss RS 70, Vihtavuori N555. 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>>
85%
57014
89%
**33
100%
ADI AR 2209
<<locked>>
96%
56985
89%
**12
98%
ADI AR 2213
<<locked>>
97%
52895
83%
**66
96%
Accurate 2700
<<locked>>
86%
57392
90%
**91
99%
Accurate 3100
<<locked>>
97%
52779
83%
**94
99%
Accurate 4064
<<locked>>
83%
57435
90%
**04
100%
Accurate 4350
<<locked>>
90%
56898
89%
**89
100%
[Accurate MAGPRO]*
<<locked>>
97%
52141
82%
**69
94%
Alliant Reloder- TS 15.5
<<locked>>
85%
57305
90%
**43
100%
Alliant Reloder-16 👍
<<locked>>
92%
57000
89%
**41
100%
Alliant Reloder-17
<<locked>>
87%
57246
90%
**35
100%
Alliant Reloder-19
<<locked>>
96%
57319
90%
**12
98%
Alliant Reloder-22
<<locked>>
97%
52373
82%
**63
97%
Alliant Reloder-23
<<locked>>
97%
49850
78%
**07
100%
Alliant Reloder-25
<<locked>>
97%
42960
67%
**99
98%
Alliant Reloder-26
<<locked>>
97%
57029
89%
**07
100%
Hodgdon H380
<<locked>>
84%
56927
89%
**50
100%
Hodgdon H414
<<locked>>
86%
56898
89%
**99
99%
Hodgdon H4350
<<locked>>
93%
56739
89%
**50
99%
[Hodgdon H4831]*
<<locked>>
97%
49298
77%
**38
94%
Hodgdon H4831 SC
<<locked>>
97%
55521
87%
**53
96%
Hodgdon Hybrid 100V
<<locked>>
94%
57319
90%
**50
100%
Hodgdon LVR
<<locked>>
89%
57087
89%
**92
100%
Hodgdon Superperformance
<<locked>>
89%
56666
89%
**32
99%
Hodgdon VARGET
<<locked>>
85%
57014
89%
**33
100%
Hodgdon TrailBoss
<<locked>>
97%
35056
55%
**69
100%
IMR 4064
<<locked>>
86%
57217
90%
**27
100%
IMR 4166 Enduron
<<locked>>
87%
57174
90%
**17
99%
IMR 4350
<<locked>>
92%
57101
89%
**50
99%
IMR 4451 Enduron
<<locked>>
87%
57116
89%
**36
99%
IMR 4831
<<locked>>
95%
57101
89%
**76
100%
IMR 4955 Enduron
<<locked>>
97%
54273
85%
**97
96%
IMR 7828 SSC
<<locked>>
97%
54998
86%
**15
96%
Lovex S062
<<locked>>
83%
56971
89%
**07
100%
Lovex S065
<<locked>>
89%
56884
89%
**33
100%
Lovex S070
<<locked>>
90%
56666
89%
**46
99%
Lovex S071
<<locked>>
97%
43743
69%
**23
98%
Norma 204
<<locked>>
91%
57188
90%
**86
98%
Norma MRP
<<locked>>
97%
56159
88%
**61
99%
Norma URP
<<locked>>
91%
56942
89%
**89
100%
Ramshot Hunter 👍
<<locked>>
92%
57029
89%
**05
100%
Ramshot Magnum
<<locked>>
97%
51401
81%
**33
98%
ReloadSwiss RS 14
<<locked>>
96%
35621
56%
**14
100%
ReloadSwiss RS 50
<<locked>>
84%
56927
89%
**33
99%
ReloadSwiss RS 60
<<locked>>
88%
57043
89%
**58
100%
ReloadSwiss RS 62 👍
<<locked>>
90%
56942
89%
**09
100%
ReloadSwiss RS 70 👍
<<locked>>
91%
56927
89%
**61
100%
ReloadSwiss RS 76
<<locked>>
97%
41916
66%
**12
96%
Rottweil R 903
<<locked>>
86%
57246
90%
**36
100%
Rottweil R 904
<<locked>>
95%
57377
90%
**63
97%
Rottweil R 905
<<locked>>
96%
57203
90%
**15
98%
Rottweil R 907
<<locked>>
89%
57363
90%
**36
99%
SNPE Vectan SP 11
<<locked>>
85%
57188
90%
**79
100%
SNPE Vectan Tubal 5000
<<locked>>
86%
57334
90%
**05
100%
SNPE Vectan Tubal 7000
<<locked>>
89%
56739
89%
**84
99%
Shooters World Long Rifle
<<locked>>
89%
56884
89%
**33
100%
Shooters World Precision
<<locked>>
83%
56971
89%
**07
100%
Somchem S355
<<locked>>
86%
57101
89%
**27
100%
Somchem S361
<<locked>>
94%
57305
90%
**14
96%
Somchem S365
<<locked>>
93%
57174
90%
**96
100%
Somchem S385
<<locked>>
96%
57014
89%
**69
99%
Vihtavuori N135
<<locked>>
87%
57261
90%
**51
100%
Vihtavuori N150
<<locked>>
91%
57145
90%
**94
100%
Vihtavuori N160
<<locked>>
88%
56681
89%
**43
100%
Vihtavuori N165
<<locked>>
97%
48660
76%
**99
97%
Vihtavuori N550
<<locked>>
88%
56913
89%
**92
100%
Vihtavuori N555 👍
<<locked>>
97%
55666
87%
**99
100%
Vihtavuori N560
<<locked>>
97%
52750
83%
**89
95%
[Vihtavuori N565]*
<<locked>>
97%
44904
70%
**12
93%
Winchester 6.5 StaBALL
<<locked>>
90%
56898
89%
**10
100%
Winchester 760
<<locked>>
86%
56898
89%
**99
99%
Winchester StaBALL HD
<<locked>>
97%
45208
71%
**63
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2208
<<locked>>
81%
50285
79%
**09
100%
[ADI AR 2209]*
<<locked>>
81%
34940
55%
**33
91%
[ADI AR 2213]*
<<locked>>
88%
38972
61%
**54
90%
Accurate 2700
<<locked>>
81%
48457
76%
**33
97%
[Accurate 3100]*
<<locked>>
81%
30458
48%
**82
92%
Accurate 4064
<<locked>>
81%
53490
84%
**41
100%
Accurate 4350
<<locked>>
81%
41365
65%
**94
98%
[Accurate MAGPRO]*
<<locked>>
92%
42975
67%
**76
90%
Alliant Reloder- TS 15.5
<<locked>>
81%
51068
80%
**38
100%
Alliant Reloder-16
<<locked>>
81%
39885
63%
**00
98%
Alliant Reloder-17
<<locked>>
81%
45890
72%
**48
100%
[Alliant Reloder-19]*
<<locked>>
81%
34780
55%
**33
91%
[Alliant Reloder-22]*
<<locked>>
84%
33634
53%
**33
90%
Alliant Reloder-23
<<locked>>
81%
29399
46%
**25
96%
[Alliant Reloder-25]*
<<locked>>
84%
28094
44%
**72
90%
[Alliant Reloder-26]*
<<locked>>
81%
31836
50%
**49
94%
Hodgdon H380
<<locked>>
81%
51880
81%
**61
100%
Hodgdon H414
<<locked>>
81%
47268
74%
**25
97%
[Hodgdon H4350]*
<<locked>>
81%
38421
60%
**72
94%
[Hodgdon H4831]*
<<locked>>
90%
39407
62%
**22
90%
[Hodgdon H4831 SC]*
<<locked>>
87%
39407
62%
**22
90%
Hodgdon Hybrid 100V
<<locked>>
81%
37333
59%
**79
99%
Hodgdon LVR
<<locked>>
81%
44034
69%
**46
98%
Hodgdon Superperformance
<<locked>>
81%
42511
67%
**53
96%
Hodgdon VARGET
<<locked>>
81%
49734
78%
**99
100%
Hodgdon TrailBoss
<<locked>>
81%
27789
44%
**01
100%
IMR 4064
<<locked>>
81%
49327
77%
**86
100%
IMR 4166 Enduron
<<locked>>
81%
48298
76%
**53
98%
IMR 4350
<<locked>>
81%
40582
64%
**31
95%
IMR 4451 Enduron
<<locked>>
81%
46659
73%
**40
97%
IMR 4831
<<locked>>
81%
35940
56%
**53
97%
[IMR 4955 Enduron]*
<<locked>>
86%
38682
61%
**69
90%
[IMR 7828 SSC]*
<<locked>>
87%
38319
60%
**48
90%
Lovex S062
<<locked>>
81%
53171
83%
**48
100%
Lovex S065
<<locked>>
81%
43874
69%
**84
98%
Lovex S070
<<locked>>
81%
42221
66%
**71
96%
[Lovex S071]*
<<locked>>
82%
27441
43%
**90
90%
[Norma 204]*
<<locked>>
81%
40118
63%
**48
93%
[Norma MRP]*
<<locked>>
81%
31850
50%
**07
91%
Norma URP
<<locked>>
81%
40857
64%
**87
98%
Ramshot Hunter
<<locked>>
81%
39842
62%
**71
96%
[Ramshot Magnum]*
<<locked>>
85%
33054
52%
**90
90%
ReloadSwiss RS 14
<<locked>>
81%
28369
44%
**44
100%
ReloadSwiss RS 50
<<locked>>
81%
51953
81%
**51
99%
ReloadSwiss RS 60
<<locked>>
81%
44280
69%
**35
100%
ReloadSwiss RS 62
<<locked>>
81%
41249
65%
**13
98%
ReloadSwiss RS 70
<<locked>>
81%
39871
62%
**20
97%
[ReloadSwiss RS 76]*
<<locked>>
90%
32561
51%
**40
90%
Rottweil R 903
<<locked>>
81%
48617
76%
**95
100%
[Rottweil R 904]*
<<locked>>
81%
36332
57%
**26
90%
[Rottweil R 905]*
<<locked>>
81%
33866
53%
**13
91%
Rottweil R 907
<<locked>>
81%
45078
71%
**07
96%
SNPE Vectan SP 11
<<locked>>
81%
50009
78%
**45
100%
SNPE Vectan Tubal 5000
<<locked>>
81%
49255
77%
**90
100%
SNPE Vectan Tubal 7000
<<locked>>
81%
43105
68%
**25
96%
Shooters World Long Rifle
<<locked>>
81%
43874
69%
**84
98%
Shooters World Precision
<<locked>>
81%
53171
83%
**48
100%
Somchem S355
<<locked>>
81%
48602
76%
**89
100%
[Somchem S361]*
<<locked>>
83%
39247
62%
**62
90%
Somchem S365
<<locked>>
81%
37478
59%
**41
100%
[Somchem S385]*
<<locked>>
81%
34505
54%
**00
92%
Vihtavuori N135
<<locked>>
81%
47413
74%
**94
100%
Vihtavuori N150
<<locked>>
81%
41611
65%
**22
100%
Vihtavuori N160
<<locked>>
81%
44309
69%
**17
99%
[Vihtavuori N165]*
<<locked>>
84%
31749
50%
**12
90%
Vihtavuori N550
<<locked>>
81%
44715
70%
**59
99%
Vihtavuori N555
<<locked>>
81%
32648
51%
**00
96%
[Vihtavuori N560]*
<<locked>>
88%
38827
61%
**81
90%
[Vihtavuori N565]*
<<locked>>
92%
37942
59%
**44
90%
Winchester 6.5 StaBALL
<<locked>>
81%
41568
65%
**48
100%
Winchester 760
<<locked>>
81%
47268
74%
**25
97%
[Winchester StaBALL HD]*
<<locked>>
81%
23337
37%
**79
94%

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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