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Load data for .300 Weath. Mag. + .308 | 125gr | Sierra SPT Pro-Hunter

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Recommended Powder(s):

.300 Weath. Mag. + .308 | 125gr | Sierra SPT Pro-Hunter

Load Specifications

Bullet:
.308 | 125gr | Sierra SPT Pro-Hunter
Manufacturer SKU:
2120
Bullet Weight:
125gr | 8.1g
Bullet Diameter:
0.308" | 7.82mm
Bullet Length:
0.890" | 22.6mm
Caliber:
.300 Weath. Mag. load data
Case Length (l3):
2.824" | 71.7mm
Cartridge Length (C.O.L.):
3.507" | 89.1mm
Seated Depth:
0.207" | 5.3mm
Shank Seated Depth:
0.207" | 5.3mm
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_B5864_C379
Last updated:
2025-01-01

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

Load data for 168 loads in caliber .300 Weath. Mag. with .308 | 125gr | Sierra SPT Pro-Hunter bullet and 84 powder(s). 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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  • .

    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 2206H
<<locked>>
83%
56724
89%
**89
100%
ADI AR 2208
<<locked>>
89%
57232
90%
**69
100%
ADI AR 2209
<<locked>>
97%
52199
82%
**53
95%
Accurate 2700
<<locked>>
89%
57087
89%
**01
97%
Accurate 3100
<<locked>>
97%
45324
71%
**63
96%
Accurate 4064
<<locked>>
87%
56956
89%
**50
100%
Accurate 4350
<<locked>>
94%
57348
90%
**28
99%
Alliant Reloder- TS 15.5
<<locked>>
88%
57421
90%
**92
100%
Alliant Reloder-15
<<locked>>
86%
56913
89%
**09
100%
Alliant Reloder-16
<<locked>>
96%
56826
89%
**84
100%
Alliant Reloder-17 👍
<<locked>>
91%
56855
89%
**97
100%
Alliant Reloder-19
<<locked>>
97%
51474
81%
**27
95%
[Alliant Reloder-22]*
<<locked>>
97%
45194
71%
**38
93%
Alliant Reloder-23
<<locked>>
97%
42859
67%
**92
99%
[Alliant Reloder-25]*
<<locked>>
97%
37681
59%
**54
93%
Alliant Reloder-26
<<locked>>
97%
48312
76%
**73
98%
Hodgdon CFE223
<<locked>>
86%
57392
90%
**28
100%
Hodgdon H380
<<locked>>
87%
56869
89%
**96
99%
Hodgdon H414
<<locked>>
90%
57305
90%
**55
98%
Hodgdon H4350
<<locked>>
97%
56463
88%
**73
97%
Hodgdon Hybrid 100V
<<locked>>
97%
54926
86%
**66
100%
Hodgdon LVR 👍
<<locked>>
93%
56985
89%
**25
99%
Hodgdon Superperformance
<<locked>>
93%
57363
90%
**71
97%
Hodgdon VARGET
<<locked>>
89%
57377
90%
**79
100%
Hodgdon TrailBoss
<<locked>>
97%
34490
54%
**36
100%
IMR 3031
<<locked>>
86%
57145
90%
**76
100%
IMR 4064
<<locked>>
90%
57392
90%
**69
100%
IMR 4166 Enduron
<<locked>>
90%
56913
89%
**46
98%
IMR 4350
<<locked>>
95%
57087
89%
**83
97%
IMR 4451 Enduron
<<locked>>
91%
57116
89%
**63
97%
IMR 4831
<<locked>>
97%
51851
81%
**20
99%
IMR 4895
<<locked>>
85%
57232
90%
**15
100%
[IMR 4955 Enduron]*
<<locked>>
97%
48501
76%
**89
91%
Lovex D073.6
<<locked>>
83%
57203
90%
**60
100%
Lovex S060
<<locked>>
84%
56956
89%
**30
100%
Lovex S062
<<locked>>
87%
56826
89%
**63
100%
Lovex S065
<<locked>>
93%
56942
89%
**69
99%
Lovex S070
<<locked>>
94%
56898
89%
**79
98%
[Lovex S071]*
<<locked>>
97%
37492
59%
**82
93%
Norma 201
<<locked>>
84%
56869
89%
**46
100%
Norma 202
<<locked>>
84%
57435
90%
**56
100%
Norma 203B
<<locked>>
86%
56710
89%
**06
100%
Norma 204
<<locked>>
95%
57435
90%
**15
96%
Norma MRP
<<locked>>
97%
47921
75%
**30
95%
Norma URP
<<locked>>
95%
56913
89%
**42
99%
Ramshot Big Game
<<locked>>
86%
57348
90%
**15
100%
Ramshot Hunter
<<locked>>
96%
57246
90%
**45
98%
[Ramshot Magnum]*
<<locked>>
97%
44063
69%
**73
93%
ReloadSwiss RS 14
<<locked>>
96%
34911
55%
**85
100%
ReloadSwiss RS 50
<<locked>>
87%
57290
90%
**76
98%
ReloadSwiss RS 52
<<locked>>
86%
56869
89%
**15
100%
ReloadSwiss RS 60 👍
<<locked>>
92%
56855
89%
**20
100%
ReloadSwiss RS 62
<<locked>>
94%
56623
89%
**38
99%
ReloadSwiss RS 70
<<locked>>
95%
57232
90%
**97
99%
Rottweil R 902
<<locked>>
86%
57043
89%
**46
100%
Rottweil R 903
<<locked>>
90%
56884
89%
**79
100%
[Rottweil R 904]*
<<locked>>
97%
53577
84%
**07
94%
Rottweil R 905
<<locked>>
97%
50589
79%
**07
95%
Rottweil R 907
<<locked>>
92%
56681
89%
**60
97%
SNPE Vectan SP 11
<<locked>>
89%
57435
90%
**25
100%
SNPE Vectan SP 9
<<locked>>
84%
57072
89%
**76
100%
SNPE Vectan Tubal 3000
<<locked>>
84%
57276
90%
**78
100%
SNPE Vectan Tubal 5000
<<locked>>
89%
56927
89%
**55
100%
SNPE Vectan Tubal 7000
<<locked>>
93%
57130
90%
**17
98%
Shooters World Long Rifle
<<locked>>
93%
56942
89%
**69
99%
Shooters World Match Rifle
<<locked>>
83%
57203
90%
**60
100%
Shooters World Precision
<<locked>>
87%
56826
89%
**63
100%
Somchem S335
<<locked>>
84%
57435
90%
**84
100%
Somchem S355
<<locked>>
90%
57072
89%
**83
100%
[Somchem S361]*
<<locked>>
97%
56014
88%
**10
93%
Somchem S365 👍
<<locked>>
97%
55738
87%
**32
100%
Somchem S385
<<locked>>
97%
50908
80%
**81
96%
Vihtavuori N133
<<locked>>
86%
57101
89%
**55
100%
Vihtavuori N135
<<locked>>
91%
57246
90%
**07
100%
Vihtavuori N140
<<locked>>
86%
57014
89%
**10
100%
Vihtavuori N150
<<locked>>
95%
57232
90%
**37
100%
Vihtavuori N160
<<locked>>
92%
57217
90%
**92
99%
[Vihtavuori N165]*
<<locked>>
97%
42221
66%
**84
92%
Vihtavuori N540
<<locked>>
86%
57363
90%
**50
100%
Vihtavuori N550 👍
<<locked>>
92%
56985
89%
**28
99%
Vihtavuori N555
<<locked>>
97%
47761
75%
**91
99%
Winchester 6.5 StaBALL
<<locked>>
94%
57232
90%
**63
100%
Winchester 760
<<locked>>
90%
57305
90%
**55
98%
Winchester StaBALL HD
<<locked>>
97%
35853
56%
**92
99%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2206H
<<locked>>
81%
53069
83%
**23
100%
ADI AR 2208
<<locked>>
81%
44875
70%
**40
98%
[ADI AR 2209]*
<<locked>>
89%
40364
63%
**68
90%
[Accurate 2700]*
<<locked>>
81%
43468
68%
**38
93%
[Accurate 3100]*
<<locked>>
87%
32039
50%
**28
90%
Accurate 4064
<<locked>>
81%
47398
74%
**89
100%
[Accurate 4350]*
<<locked>>
81%
35621
56%
**72
94%
Alliant Reloder- TS 15.5
<<locked>>
81%
45063
71%
**66
99%
Alliant Reloder-15
<<locked>>
81%
48414
76%
**51
99%
[Alliant Reloder-16]*
<<locked>>
81%
35085
55%
**76
94%
Alliant Reloder-17
<<locked>>
81%
39697
62%
**33
98%
[Alliant Reloder-19]*
<<locked>>
89%
39421
62%
**54
90%
[Alliant Reloder-22]*
<<locked>>
93%
39697
62%
**91
90%
[Alliant Reloder-23]*
<<locked>>
82%
26252
41%
**90
90%
[Alliant Reloder-25]*
<<locked>>
93%
32750
51%
**00
90%
[Alliant Reloder-26]*
<<locked>>
85%
30850
48%
**94
90%
Hodgdon CFE223
<<locked>>
81%
47471
74%
**55
98%
Hodgdon H380
<<locked>>
81%
46151
72%
**86
97%
[Hodgdon H414]*
<<locked>>
81%
41162
64%
**00
93%
[Hodgdon H4350]*
<<locked>>
83%
36187
57%
**17
90%
Hodgdon Hybrid 100V
<<locked>>
81%
32503
51%
**64
95%
Hodgdon LVR
<<locked>>
81%
38551
60%
**35
95%
[Hodgdon Superperformance]*
<<locked>>
81%
37072
58%
**12
90%
Hodgdon VARGET
<<locked>>
81%
44628
70%
**27
98%
Hodgdon TrailBoss
<<locked>>
81%
27311
43%
**59
100%
IMR 3031
<<locked>>
81%
49443
77%
**45
100%
IMR 4064
<<locked>>
81%
44077
69%
**07
98%
[IMR 4166 Enduron]*
<<locked>>
81%
43381
68%
**71
94%
[IMR 4350]*
<<locked>>
81%
36216
57%
**20
90%
[IMR 4451 Enduron]*
<<locked>>
81%
41626
65%
**48
93%
[IMR 4831]*
<<locked>>
81%
30966
49%
**08
92%
IMR 4895
<<locked>>
81%
49734
78%
**81
99%
[IMR 4955 Enduron]*
<<locked>>
94%
44831
70%
**20
90%
Lovex D073.6
<<locked>>
81%
53316
84%
**01
100%
Lovex S060
<<locked>>
81%
51953
81%
**45
100%
Lovex S062
<<locked>>
81%
47268
74%
**76
100%
[Lovex S065]*
<<locked>>
81%
39073
61%
**86
94%
[Lovex S070]*
<<locked>>
81%
37231
58%
**53
92%
[Lovex S071]*
<<locked>>
92%
31792
50%
**25
90%
Norma 201
<<locked>>
81%
51866
81%
**58
100%
Norma 202
<<locked>>
81%
52460
82%
**68
100%
Norma 203B
<<locked>>
81%
47921
75%
**38
99%
[Norma 204]*
<<locked>>
85%
40234
63%
**54
90%
[Norma MRP]*
<<locked>>
89%
36158
57%
**25
90%
[Norma URP]*
<<locked>>
81%
35578
56%
**66
94%
Ramshot Big Game
<<locked>>
81%
48066
75%
**45
99%
[Ramshot Hunter]*
<<locked>>
81%
34606
54%
**33
91%
[Ramshot Magnum]*
<<locked>>
94%
39059
61%
**41
90%
ReloadSwiss RS 14
<<locked>>
81%
27702
43%
**05
100%
ReloadSwiss RS 50
<<locked>>
81%
46209
72%
**63
96%
ReloadSwiss RS 52
<<locked>>
81%
47514
74%
**45
100%
ReloadSwiss RS 60
<<locked>>
81%
38348
60%
**07
98%
[ReloadSwiss RS 62]*
<<locked>>
81%
35375
55%
**72
94%
[ReloadSwiss RS 70]*
<<locked>>
81%
34853
55%
**79
93%
Rottweil R 902
<<locked>>
81%
49168
77%
**09
100%
Rottweil R 903
<<locked>>
81%
42656
67%
**07
99%
[Rottweil R 904]*
<<locked>>
90%
43308
68%
**94
90%
[Rottweil R 905]*
<<locked>>
89%
39059
61%
**45
90%
[Rottweil R 907]*
<<locked>>
81%
40234
63%
**12
92%
SNPE Vectan SP 11
<<locked>>
81%
43903
69%
**66
98%
SNPE Vectan SP 9
<<locked>>
81%
51619
81%
**81
100%
SNPE Vectan Tubal 3000
<<locked>>
81%
52765
83%
**99
100%
SNPE Vectan Tubal 5000
<<locked>>
81%
44411
70%
**41
100%
[SNPE Vectan Tubal 7000]*
<<locked>>
81%
38479
60%
**20
92%
[Shooters World Long Rifle]*
<<locked>>
81%
39073
61%
**86
94%
Shooters World Match Rifle
<<locked>>
81%
53316
84%
**01
100%
Shooters World Precision
<<locked>>
81%
47268
74%
**76
100%
Somchem S335
<<locked>>
81%
52576
82%
**02
100%
Somchem S355
<<locked>>
81%
43149
68%
**10
99%
[Somchem S361]*
<<locked>>
91%
45716
72%
**04
90%
Somchem S365
<<locked>>
81%
31894
50%
**04
97%
[Somchem S385]*
<<locked>>
87%
36274
57%
**40
90%
Vihtavuori N133
<<locked>>
81%
49719
78%
**43
100%
Vihtavuori N135
<<locked>>
81%
41829
66%
**31
100%
Vihtavuori N140
<<locked>>
81%
49110
77%
**82
100%
Vihtavuori N150
<<locked>>
81%
36941
58%
**30
98%
Vihtavuori N160
<<locked>>
81%
38522
60%
**05
95%
[Vihtavuori N165]*
<<locked>>
93%
37536
59%
**56
90%
Vihtavuori N540
<<locked>>
81%
48834
77%
**96
100%
Vihtavuori N550
<<locked>>
81%
39291
62%
**64
96%
[Vihtavuori N555]*
<<locked>>
81%
27572
43%
**53
90%
Winchester 6.5 StaBALL
<<locked>>
81%
36695
58%
**36
97%
[Winchester 760]*
<<locked>>
81%
41162
64%
**00
93%
[Winchester StaBALL HD]*
<<locked>>
86%
26774
42%
**59
90%

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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