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

Recommended Powder(s): Alliant Reloder-16, Hodgdon LVR, Norma URP, ReloadSwiss RS 62, Somchem S365

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

Load Specifications

(Use the Personalized Load Calculator below to adjust )

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 Lapua Mag. load data
Case Length (l3):
2.724" | 69.2mm
Cartridge Length (C.O.L.):
3.492" | 88.7mm
Seated Depth:
0.122" | 3.1mm
Shank Seated Depth:
0.122" | 3.1mm
Case Capacity:
100.0 Grains of Water | 6.49 cm³
Primer Size:
Large Rifle Magnum (LRM)
Max. allowed Pressure:
60916 psi | 4200 bar
LID:
LID_B5864_C363
Last updated:
2025-01-01

Load data for 152 loads in caliber .300 Lapua Mag. with .308 | 125gr | Sierra SPT Pro-Hunter bullet and 76 powders such as Alliant Reloder-16, Hodgdon LVR, Norma URP, ReloadSwiss RS 62, Somchem S365. 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>>
86%
54201
89%
**33
100%
ADI AR 2209
<<locked>>
97%
53998
89%
**89
96%
[ADI AR 2213]*
<<locked>>
97%
48747
80%
**97
92%
Accurate 2700
<<locked>>
87%
54665
90%
**64
97%
Accurate 3100
<<locked>>
97%
47181
77%
**15
97%
Accurate 4064
<<locked>>
84%
54302
89%
**07
100%
Accurate 4350
<<locked>>
92%
54201
89%
**89
99%
Alliant Reloder- TS 15.5
<<locked>>
86%
54824
90%
**56
100%
Alliant Reloder-15
<<locked>>
83%
54215
89%
**73
100%
Alliant Reloder-16 👍
<<locked>>
93%
54259
89%
**38
100%
Alliant Reloder-17
<<locked>>
89%
54143
89%
**42
100%
Alliant Reloder-19
<<locked>>
97%
53287
87%
**76
96%
[Alliant Reloder-22]*
<<locked>>
97%
47398
78%
**87
94%
Alliant Reloder-23
<<locked>>
97%
44686
73%
**51
99%
Alliant Reloder-25
<<locked>>
97%
39073
64%
**14
95%
Alliant Reloder-26
<<locked>>
97%
51242
84%
**51
99%
Hodgdon CFE223
<<locked>>
84%
54621
90%
**92
99%
Hodgdon H380
<<locked>>
85%
54592
90%
**60
99%
Hodgdon H414
<<locked>>
88%
54563
90%
**99
97%
Hodgdon H4350
<<locked>>
95%
54621
90%
**46
97%
[Hodgdon H4831 SC]*
<<locked>>
97%
51126
84%
**94
92%
Hodgdon Hybrid 100V
<<locked>>
95%
54491
89%
**53
100%
Hodgdon LVR 👍
<<locked>>
90%
54781
90%
**92
99%
Hodgdon Superperformance
<<locked>>
90%
54418
89%
**22
97%
Hodgdon VARGET
<<locked>>
86%
54201
89%
**33
100%
Hodgdon TrailBoss
<<locked>>
96%
34272
56%
**46
100%
IMR 4064
<<locked>>
87%
54592
90%
**37
100%
IMR 4166 Enduron
<<locked>>
87%
54795
90%
**10
97%
IMR 4350
<<locked>>
93%
54679
90%
**50
97%
IMR 4451 Enduron
<<locked>>
89%
54781
90%
**37
97%
IMR 4831
<<locked>>
97%
54012
89%
**63
99%
[IMR 4955 Enduron]*
<<locked>>
97%
50183
82%
**45
92%
[IMR 7828 SSC]*
<<locked>>
97%
49487
81%
**30
93%
Lovex S062
<<locked>>
85%
54810
90%
**33
100%
Lovex S065
<<locked>>
91%
54665
90%
**33
99%
Lovex S070
<<locked>>
92%
54534
90%
**53
98%
[Lovex S071]*
<<locked>>
97%
39508
65%
**35
94%
Norma 203B
<<locked>>
84%
54723
90%
**63
100%
Norma 204
<<locked>>
93%
54723
90%
**86
96%
Norma MRP
<<locked>>
97%
49922
82%
**83
96%
Norma URP 👍
<<locked>>
92%
54607
90%
**02
99%
Ramshot Big Game
<<locked>>
84%
54679
90%
**86
100%
Ramshot Hunter
<<locked>>
93%
54317
89%
**92
98%
[Ramshot Magnum]*
<<locked>>
97%
45847
75%
**15
94%
ReloadSwiss RS 14
<<locked>>
97%
35186
58%
**01
100%
ReloadSwiss RS 50
<<locked>>
85%
54679
90%
**30
98%
ReloadSwiss RS 52
<<locked>>
84%
54781
90%
**83
100%
ReloadSwiss RS 60
<<locked>>
90%
54665
90%
**88
100%
ReloadSwiss RS 62 👍
<<locked>>
92%
54447
89%
**09
99%
ReloadSwiss RS 70
<<locked>>
93%
54737
90%
**58
99%
Rottweil R 902
<<locked>>
83%
54476
89%
**07
100%
Rottweil R 903
<<locked>>
87%
54679
90%
**53
100%
[Rottweil R 904]*
<<locked>>
96%
54694
90%
**46
94%
Rottweil R 905
<<locked>>
97%
52547
86%
**63
96%
Rottweil R 907
<<locked>>
89%
54389
89%
**23
97%
SNPE Vectan SP 11
<<locked>>
86%
54462
89%
**79
100%
SNPE Vectan Tubal 5000
<<locked>>
86%
54215
89%
**19
100%
SNPE Vectan Tubal 7000
<<locked>>
91%
54578
90%
**74
97%
Shooters World Long Rifle
<<locked>>
91%
54665
90%
**33
99%
Shooters World Precision
<<locked>>
85%
54810
90%
**33
100%
Somchem S355
<<locked>>
87%
54331
89%
**40
100%
[Somchem S361]*
<<locked>>
95%
54433
89%
**91
93%
Somchem S365 👍
<<locked>>
95%
54766
90%
**25
100%
Somchem S385
<<locked>>
97%
53621
88%
**46
97%
Vihtavuori N133
<<locked>>
83%
54824
90%
**28
100%
Vihtavuori N135
<<locked>>
89%
54795
90%
**81
100%
Vihtavuori N140
<<locked>>
83%
54404
89%
**78
100%
Vihtavuori N150
<<locked>>
92%
54505
89%
**01
100%
Vihtavuori N160
<<locked>>
90%
54433
89%
**53
99%
[Vihtavuori N165]*
<<locked>>
97%
44527
73%
**40
94%
Vihtavuori N540
<<locked>>
83%
54476
89%
**10
100%
Vihtavuori N550
<<locked>>
90%
54708
90%
**89
99%
Vihtavuori N555
<<locked>>
97%
49908
82%
**30
99%
Winchester 6.5 StaBALL
<<locked>>
91%
54259
89%
**23
100%
Winchester 760
<<locked>>
88%
54563
90%
**99
97%
Winchester StaBALL HD
<<locked>>
97%
38682
63%
**55
99%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2208
<<locked>>
81%
46427
76%
**79
99%
[ADI AR 2209]*
<<locked>>
87%
39160
64%
**51
90%
[ADI AR 2213]*
<<locked>>
94%
43845
72%
**86
90%
[Accurate 2700]*
<<locked>>
81%
44657
73%
**77
94%
[Accurate 3100]*
<<locked>>
85%
31009
51%
**05
90%
Accurate 4064
<<locked>>
81%
49240
81%
**25
100%
Accurate 4350
<<locked>>
81%
37188
61%
**18
95%
Alliant Reloder- TS 15.5
<<locked>>
81%
46717
77%
**02
100%
Alliant Reloder-15
<<locked>>
81%
50053
82%
**84
99%
Alliant Reloder-16
<<locked>>
81%
36245
59%
**22
95%
Alliant Reloder-17
<<locked>>
81%
41307
68%
**79
99%
[Alliant Reloder-19]*
<<locked>>
87%
38754
64%
**38
90%
[Alliant Reloder-22]*
<<locked>>
91%
38624
63%
**68
90%
[Alliant Reloder-23]*
<<locked>>
81%
26571
44%
**10
91%
[Alliant Reloder-25]*
<<locked>>
91%
31923
52%
**90
90%
[Alliant Reloder-26]*
<<locked>>
83%
30327
50%
**81
90%
Hodgdon CFE223
<<locked>>
81%
49371
81%
**91
99%
Hodgdon H380
<<locked>>
81%
47645
78%
**19
98%
[Hodgdon H414]*
<<locked>>
81%
42757
70%
**46
94%
[Hodgdon H4350]*
<<locked>>
81%
35375
58%
**00
90%
[Hodgdon H4831 SC]*
<<locked>>
93%
44889
74%
**66
90%
Hodgdon Hybrid 100V
<<locked>>
81%
33605
55%
**07
96%
Hodgdon LVR
<<locked>>
81%
40161
66%
**77
96%
[Hodgdon Superperformance]*
<<locked>>
81%
38508
63%
**54
92%
Hodgdon VARGET
<<locked>>
81%
45919
75%
**66
98%
Hodgdon TrailBoss
<<locked>>
81%
27340
45%
**72
100%
IMR 4064
<<locked>>
81%
45498
75%
**59
99%
IMR 4166 Enduron
<<locked>>
81%
44846
74%
**14
95%
[IMR 4350]*
<<locked>>
81%
36970
61%
**40
91%
[IMR 4451 Enduron]*
<<locked>>
81%
42975
71%
**87
94%
[IMR 4831]*
<<locked>>
81%
32416
53%
**61
93%
[IMR 4955 Enduron]*
<<locked>>
93%
44077
72%
**10
90%
[IMR 7828 SSC]*
<<locked>>
93%
43511
71%
**92
90%
Lovex S062
<<locked>>
81%
48950
80%
**28
100%
Lovex S065
<<locked>>
81%
40480
66%
**28
95%
[Lovex S070]*
<<locked>>
81%
38609
63%
**95
93%
[Lovex S071]*
<<locked>>
90%
31009
51%
**05
90%
Norma 203B
<<locked>>
81%
49559
81%
**74
99%
[Norma 204]*
<<locked>>
83%
39102
64%
**38
90%
[Norma MRP]*
<<locked>>
87%
35157
58%
**12
90%
Norma URP
<<locked>>
81%
37057
61%
**09
95%
Ramshot Big Game
<<locked>>
81%
49922
82%
**81
99%
[Ramshot Hunter]*
<<locked>>
81%
36042
59%
**76
92%
[Ramshot Magnum]*
<<locked>>
91%
37463
61%
**12
90%
ReloadSwiss RS 14
<<locked>>
81%
27804
46%
**14
100%
ReloadSwiss RS 50
<<locked>>
81%
47921
79%
**09
97%
ReloadSwiss RS 52
<<locked>>
81%
49284
81%
**91
100%
ReloadSwiss RS 60
<<locked>>
81%
39972
66%
**59
99%
ReloadSwiss RS 62
<<locked>>
81%
36999
61%
**28
95%
[ReloadSwiss RS 70]*
<<locked>>
81%
36230
59%
**31
94%
Rottweil R 902
<<locked>>
81%
50894
84%
**45
100%
Rottweil R 903
<<locked>>
81%
44309
73%
**46
99%
[Rottweil R 904]*
<<locked>>
88%
42076
69%
**81
90%
[Rottweil R 905]*
<<locked>>
88%
38145
63%
**28
90%
[Rottweil R 907]*
<<locked>>
81%
41510
68%
**51
93%
SNPE Vectan SP 11
<<locked>>
81%
45643
75%
**02
99%
SNPE Vectan Tubal 5000
<<locked>>
81%
45687
75%
**74
100%
[SNPE Vectan Tubal 7000]*
<<locked>>
81%
39682
65%
**56
93%
Shooters World Long Rifle
<<locked>>
81%
40480
66%
**28
95%
Shooters World Precision
<<locked>>
81%
48950
80%
**28
100%
Somchem S355
<<locked>>
81%
44744
73%
**46
99%
[Somchem S361]*
<<locked>>
89%
44643
73%
**87
90%
Somchem S365
<<locked>>
81%
33301
55%
**49
97%
[Somchem S385]*
<<locked>>
84%
35070
58%
**20
90%
Vihtavuori N133
<<locked>>
81%
51184
84%
**69
100%
Vihtavuori N135
<<locked>>
81%
43352
71%
**77
100%
Vihtavuori N140
<<locked>>
81%
50778
83%
**15
100%
Vihtavuori N150
<<locked>>
81%
38145
63%
**72
99%
Vihtavuori N160
<<locked>>
81%
40306
66%
**58
96%
[Vihtavuori N165]*
<<locked>>
91%
36201
59%
**36
90%
Vihtavuori N540
<<locked>>
81%
50372
83%
**35
100%
Vihtavuori N550
<<locked>>
81%
40698
67%
**97
96%
[Vihtavuori N555]*
<<locked>>
81%
28964
48%
**05
92%
Winchester 6.5 StaBALL
<<locked>>
81%
38043
62%
**89
98%
[Winchester 760]*
<<locked>>
81%
42757
70%
**46
94%
[Winchester StaBALL HD]*
<<locked>>
84%
26223
43%
**46
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.

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

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