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Load data for .300 Lapua Mag. + .310 | 123gr | Hornady SST

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

.300 Lapua Mag. + .310 | 123gr | Hornady SST

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.310 | 123gr | Hornady SST
Manufacturer SKU:
3142
Bullet Weight:
123gr | 8.0g
Bullet Diameter:
0.310" | 7.87mm
Bullet Length:
0.990" | 25.1mm
Caliber:
.300 Lapua Mag. load data
Case Length (l3):
2.724" | 69.2mm
Cartridge Length (C.O.L.):
3.625" | 92.1mm
Seated Depth:
0.089" | 2.3mm
Shank Seated Depth:
0.089" | 2.3mm
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_B10913_C363
Last updated:
2025-02-02

Load data for 154 loads in caliber .300 Lapua Mag. with .310 | 123gr | Hornady SST bullet and 77 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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    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 2208
<<locked>>
86%
54665
90%
**56
100%
ADI AR 2209
<<locked>>
97%
53722
88%
**09
95%
Accurate 2700
<<locked>>
87%
54375
89%
**87
97%
Accurate 3100
<<locked>>
97%
47065
77%
**22
97%
Accurate 4064
<<locked>>
84%
54592
90%
**37
100%
Accurate 4350
<<locked>>
92%
54447
89%
**06
99%
Alliant Reloder- TS 15.5
<<locked>>
86%
54578
90%
**83
100%
Alliant Reloder-15
<<locked>>
84%
54723
90%
**96
100%
Alliant Reloder-16 👍
<<locked>>
94%
54607
90%
**74
100%
Alliant Reloder-17
<<locked>>
89%
54476
89%
**74
100%
Alliant Reloder-19
<<locked>>
97%
52852
87%
**92
95%
[Alliant Reloder-22]*
<<locked>>
97%
46963
77%
**01
94%
Alliant Reloder-23
<<locked>>
97%
44701
73%
**68
99%
[Alliant Reloder-25]*
<<locked>>
97%
38740
64%
**10
94%
Alliant Reloder-26
<<locked>>
97%
50633
83%
**58
99%
Hodgdon CFE223
<<locked>>
84%
54534
90%
**09
99%
Hodgdon H380
<<locked>>
85%
54317
89%
**66
99%
Hodgdon H414
<<locked>>
88%
54737
90%
**28
97%
Hodgdon H4350
<<locked>>
95%
54694
90%
**66
97%
[Hodgdon H4831 SC]*
<<locked>>
97%
50705
83%
**10
92%
Hodgdon Hybrid 100V
<<locked>>
95%
54665
90%
**83
100%
Hodgdon LVR 👍
<<locked>>
90%
54433
89%
**12
99%
Hodgdon Superperformance
<<locked>>
90%
54578
90%
**48
97%
Hodgdon VARGET
<<locked>>
87%
54665
90%
**56
100%
Hodgdon TrailBoss
<<locked>>
96%
34229
56%
**62
100%
IMR 3031
<<locked>>
83%
54621
90%
**69
100%
IMR 4064
<<locked>>
87%
54114
89%
**50
100%
IMR 4166 Enduron
<<locked>>
88%
54708
90%
**30
97%
IMR 4350
<<locked>>
93%
54476
89%
**56
97%
IMR 4451 Enduron
<<locked>>
89%
54520
89%
**60
97%
IMR 4831
<<locked>>
97%
54070
89%
**83
99%
IMR 4895
<<locked>>
83%
54766
90%
**12
100%
[IMR 4955 Enduron]*
<<locked>>
97%
49980
82%
**48
92%
[IMR 7828 SSC]*
<<locked>>
97%
49719
82%
**60
92%
Lovex S062
<<locked>>
85%
54621
90%
**46
100%
Lovex S065
<<locked>>
91%
54665
90%
**53
98%
Lovex S070
<<locked>>
92%
54636
90%
**76
98%
[Lovex S071]*
<<locked>>
97%
39175
64%
**51
94%
Norma 203B
<<locked>>
84%
54491
89%
**89
100%
Norma 204
<<locked>>
93%
54302
89%
**02
95%
Norma MRP
<<locked>>
97%
49951
82%
**06
96%
Norma URP 👍
<<locked>>
93%
54360
89%
**15
99%
Ramshot Big Game
<<locked>>
84%
54375
89%
**92
100%
Ramshot Hunter
<<locked>>
93%
54433
89%
**19
98%
[Ramshot Magnum]*
<<locked>>
97%
46006
76%
**41
94%
ReloadSwiss RS 14
<<locked>>
97%
35157
58%
**18
100%
ReloadSwiss RS 50
<<locked>>
85%
54389
89%
**53
98%
ReloadSwiss RS 52
<<locked>>
84%
54491
89%
**09
100%
ReloadSwiss RS 60
<<locked>>
90%
54578
90%
**97
100%
ReloadSwiss RS 62 👍
<<locked>>
92%
54563
90%
**35
99%
ReloadSwiss RS 70
<<locked>>
93%
54418
89%
**74
99%
Rottweil R 902
<<locked>>
84%
54781
90%
**30
100%
Rottweil R 903
<<locked>>
87%
54708
90%
**76
100%
[Rottweil R 904]*
<<locked>>
96%
54447
89%
**53
94%
Rottweil R 905
<<locked>>
97%
52098
86%
**79
95%
Rottweil R 907
<<locked>>
89%
54114
89%
**46
97%
SNPE Vectan SP 11
<<locked>>
86%
54143
89%
**02
100%
SNPE Vectan Tubal 5000
<<locked>>
87%
54766
90%
**45
100%
SNPE Vectan Tubal 7000
<<locked>>
91%
54186
89%
**94
97%
Shooters World Long Rifle
<<locked>>
91%
54665
90%
**53
98%
Shooters World Precision
<<locked>>
85%
54621
90%
**46
100%
Somchem S355
<<locked>>
87%
54201
89%
**60
100%
[Somchem S361]*
<<locked>>
95%
54476
89%
**10
93%
Somchem S365 👍
<<locked>>
95%
54302
89%
**42
100%
Somchem S385
<<locked>>
97%
53156
87%
**46
96%
Vihtavuori N133
<<locked>>
83%
54302
89%
**45
100%
Vihtavuori N135
<<locked>>
88%
54172
89%
**94
100%
Vihtavuori N140
<<locked>>
83%
54360
89%
**01
100%
Vihtavuori N150
<<locked>>
92%
54230
89%
**23
100%
Vihtavuori N160
<<locked>>
90%
54360
89%
**73
99%
[Vihtavuori N165]*
<<locked>>
97%
43888
72%
**40
93%
Vihtavuori N540
<<locked>>
84%
54810
90%
**30
100%
Vihtavuori N550
<<locked>>
90%
54331
89%
**09
99%
Vihtavuori N555
<<locked>>
97%
49748
82%
**63
99%
Winchester 6.5 StaBALL
<<locked>>
91%
54665
90%
**40
100%
Winchester 760
<<locked>>
88%
54737
90%
**28
97%
Winchester StaBALL HD
<<locked>>
97%
38189
63%
**64
99%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2208
<<locked>>
81%
46296
76%
**92
98%
[ADI AR 2209]*
<<locked>>
88%
39842
65%
**84
90%
[Accurate 2700]*
<<locked>>
81%
44469
73%
**87
94%
[Accurate 3100]*
<<locked>>
85%
31531
52%
**31
90%
Accurate 4064
<<locked>>
81%
48617
80%
**35
100%
Accurate 4350
<<locked>>
81%
37014
61%
**28
95%
Alliant Reloder- TS 15.5
<<locked>>
81%
46572
76%
**15
99%
Alliant Reloder-15
<<locked>>
81%
49864
82%
**97
99%
Alliant Reloder-16
<<locked>>
81%
36027
59%
**28
95%
Alliant Reloder-17
<<locked>>
81%
41075
67%
**99
99%
[Alliant Reloder-19]*
<<locked>>
88%
39073
64%
**74
90%
[Alliant Reloder-22]*
<<locked>>
91%
39088
64%
**07
90%
[Alliant Reloder-23]*
<<locked>>
81%
26397
43%
**20
91%
[Alliant Reloder-25]*
<<locked>>
91%
32184
53%
**10
90%
[Alliant Reloder-26]*
<<locked>>
83%
30618
50%
**04
90%
Hodgdon CFE223
<<locked>>
81%
49327
81%
**10
99%
Hodgdon H380
<<locked>>
81%
47442
78%
**45
98%
[Hodgdon H414]*
<<locked>>
81%
42525
70%
**66
94%
[Hodgdon H4350]*
<<locked>>
82%
35868
59%
**36
90%
[Hodgdon H4831 SC]*
<<locked>>
94%
45672
75%
**92
90%
Hodgdon Hybrid 100V
<<locked>>
81%
33489
55%
**17
96%
Hodgdon LVR
<<locked>>
81%
39871
65%
**97
95%
[Hodgdon Superperformance]*
<<locked>>
81%
38261
63%
**71
91%
Hodgdon VARGET
<<locked>>
81%
45818
75%
**79
98%
Hodgdon TrailBoss
<<locked>>
81%
27311
45%
**88
100%
IMR 3031
<<locked>>
81%
50981
84%
**01
100%
IMR 4064
<<locked>>
81%
45266
74%
**63
98%
IMR 4166 Enduron
<<locked>>
81%
44411
73%
**27
95%
[IMR 4350]*
<<locked>>
81%
36840
60%
**66
91%
[IMR 4451 Enduron]*
<<locked>>
81%
42844
70%
**97
94%
[IMR 4831]*
<<locked>>
81%
31981
53%
**67
93%
IMR 4895
<<locked>>
81%
51242
84%
**43
100%
[IMR 4955 Enduron]*
<<locked>>
93%
44715
73%
**36
90%
[IMR 7828 SSC]*
<<locked>>
94%
44875
74%
**35
90%
Lovex S062
<<locked>>
81%
48820
80%
**41
100%
Lovex S065
<<locked>>
81%
40118
66%
**38
95%
[Lovex S070]*
<<locked>>
81%
38363
63%
**09
93%
[Lovex S071]*
<<locked>>
90%
31531
52%
**31
90%
Norma 203B
<<locked>>
81%
49371
81%
**84
99%
[Norma 204]*
<<locked>>
83%
39465
65%
**61
90%
[Norma MRP]*
<<locked>>
87%
35447
58%
**35
90%
Norma URP
<<locked>>
81%
36666
60%
**18
95%
Ramshot Big Game
<<locked>>
81%
49661
82%
**04
99%
[Ramshot Hunter]*
<<locked>>
81%
35868
59%
**99
92%
[Ramshot Magnum]*
<<locked>>
92%
37536
62%
**35
90%
ReloadSwiss RS 14
<<locked>>
81%
27775
46%
**34
100%
ReloadSwiss RS 50
<<locked>>
81%
47718
78%
**15
96%
ReloadSwiss RS 52
<<locked>>
81%
49052
81%
**01
100%
ReloadSwiss RS 60
<<locked>>
81%
39755
65%
**82
99%
ReloadSwiss RS 62
<<locked>>
81%
36782
60%
**31
95%
[ReloadSwiss RS 70]*
<<locked>>
81%
36042
59%
**35
93%
Rottweil R 902
<<locked>>
81%
50778
83%
**61
100%
Rottweil R 903
<<locked>>
81%
44005
72%
**59
99%
[Rottweil R 904]*
<<locked>>
89%
42438
70%
**04
90%
[Rottweil R 905]*
<<locked>>
88%
38711
64%
**61
90%
[Rottweil R 907]*
<<locked>>
81%
41278
68%
**61
93%
SNPE Vectan SP 11
<<locked>>
81%
45295
74%
**22
99%
SNPE Vectan Tubal 5000
<<locked>>
81%
45614
75%
**91
100%
[SNPE Vectan Tubal 7000]*
<<locked>>
81%
39552
65%
**79
93%
Shooters World Long Rifle
<<locked>>
81%
40118
66%
**38
95%
Shooters World Precision
<<locked>>
81%
48820
80%
**41
100%
Somchem S355
<<locked>>
81%
44338
73%
**59
99%
[Somchem S361]*
<<locked>>
89%
44759
73%
**14
90%
Somchem S365
<<locked>>
81%
33141
54%
**59
97%
[Somchem S385]*
<<locked>>
85%
35636
58%
**53
90%
Vihtavuori N133
<<locked>>
81%
50705
83%
**86
100%
Vihtavuori N135
<<locked>>
81%
43018
71%
**81
100%
Vihtavuori N140
<<locked>>
81%
50227
82%
**28
100%
Vihtavuori N150
<<locked>>
81%
38072
62%
**86
99%
Vihtavuori N160
<<locked>>
81%
39755
65%
**61
96%
[Vihtavuori N165]*
<<locked>>
92%
36898
61%
**66
90%
Vihtavuori N540
<<locked>>
81%
50183
82%
**48
100%
Vihtavuori N550
<<locked>>
81%
40524
67%
**07
96%
[Vihtavuori N555]*
<<locked>>
81%
28718
47%
**15
91%
Winchester 6.5 StaBALL
<<locked>>
81%
37840
62%
**95
98%
[Winchester 760]*
<<locked>>
81%
42525
70%
**66
94%
[Winchester StaBALL HD]*
<<locked>>
85%
26324
43%
**62
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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