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Load data for .300 Lapua Mag. + .308 | 154gr | Hammer HHT

Recommended Powder(s): Alliant Reloder-26, IMR 4831, Ramshot Hunter, Vihtavuori N555, Winchester StaBALL HD

.300 Lapua Mag. + .308 | 154gr | Hammer HHT

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.308 | 154gr | Hammer HHT
Bullet Weight:
154gr | 10.0g
Bullet Diameter:
0.308" | 7.82mm
Bullet Length:
<<locked>>
Caliber:
.300 Lapua Mag. load data
Case Length (l3):
2.724" | 69.2mm
Cartridge Length (C.O.L.):
<<locked>>
Seated Depth:
<<locked>>
Shank Seated Depth:
<<locked>>
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_B12181_C363
Last updated:
2026-02-03
Recommended Twist Rate:
1:11 - 1:10

Load data for 148 loads in caliber .300 Lapua Mag. with .308 | 154gr | Hammer HHT bullet and 74 powders such as Alliant Reloder-26, IMR 4831, Ramshot Hunter, 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>>
83%
54099
89%
**51
100%
ADI AR 2209
<<locked>>
94%
54520
90%
**36
98%
ADI AR 2213
<<locked>>
97%
53229
87%
**46
96%
[ADI AR 2225]*
<<locked>>
97%
34490
57%
**53
93%
Accurate 2700
<<locked>>
84%
54259
89%
**09
98%
Accurate 3100
<<locked>>
97%
53113
87%
**58
99%
Accurate 4350
<<locked>>
89%
54259
89%
**07
100%
[Accurate MAGPRO]*
<<locked>>
97%
52460
86%
**33
94%
Alliant Reloder-16
<<locked>>
90%
54462
89%
**59
100%
Alliant Reloder-17
<<locked>>
85%
54375
89%
**56
100%
Alliant Reloder-19
<<locked>>
94%
54404
89%
**27
98%
Alliant Reloder-22
<<locked>>
97%
52736
87%
**43
98%
Alliant Reloder-23
<<locked>>
97%
50096
82%
**81
100%
Alliant Reloder-25
<<locked>>
97%
43192
71%
**79
98%
Alliant Reloder-26 👍
<<locked>>
95%
54389
89%
**25
100%
[Baschieri & Pellagri 109]*
<<locked>>
97%
52663
86%
**41
92%
Bofors RP15
<<locked>>
97%
48182
79%
**61
96%
[Bofors RP30]*
<<locked>>
97%
39668
65%
**87
92%
Bofors RP5
<<locked>>
97%
52736
87%
**43
98%
Bofors RP7
<<locked>>
87%
54766
90%
**61
99%
Hodgdon H414
<<locked>>
85%
54766
90%
**33
99%
Hodgdon H4350
<<locked>>
92%
54418
89%
**74
98%
[Hodgdon H4831]*
<<locked>>
97%
49458
81%
**12
94%
Hodgdon H4831 SC
<<locked>>
96%
54766
90%
**10
96%
Hodgdon Hybrid 100V
<<locked>>
92%
54549
90%
**77
100%
Hodgdon LVR
<<locked>>
87%
54331
89%
**04
100%
[Hodgdon Retumbo]*
<<locked>>
97%
34490
57%
**53
93%
Hodgdon Superperformance
<<locked>>
88%
54723
90%
**59
99%
Hodgdon VARGET
<<locked>>
84%
54099
89%
**51
100%
Hodgdon TrailBoss
<<locked>>
97%
35201
58%
**42
100%
IMR 4064
<<locked>>
84%
54389
89%
**45
100%
IMR 4166 Enduron
<<locked>>
85%
54534
90%
**38
99%
IMR 4350
<<locked>>
90%
54592
90%
**71
99%
IMR 4451 Enduron
<<locked>>
86%
54433
89%
**64
99%
IMR 4831 👍
<<locked>>
94%
54505
89%
**91
100%
IMR 4955 Enduron
<<locked>>
97%
54418
89%
**71
96%
IMR 7828 SSC
<<locked>>
96%
54157
89%
**79
97%
Lovex S065
<<locked>>
88%
54360
89%
**58
100%
Lovex S070
<<locked>>
89%
54679
90%
**81
99%
Lovex S071
<<locked>>
97%
44237
73%
**97
98%
Norma 204
<<locked>>
89%
54085
89%
**10
97%
Norma MRP
<<locked>>
96%
54563
90%
**05
99%
Norma URP
<<locked>>
89%
54346
89%
**17
100%
Ramshot Grand
<<locked>>
95%
54621
90%
**86
97%
Ramshot Hunter 👍
<<locked>>
90%
54621
90%
**30
99%
Ramshot Magnum
<<locked>>
97%
51663
85%
**97
98%
ReloadSwiss RS 14
<<locked>>
97%
35766
59%
**85
100%
ReloadSwiss RS 60
<<locked>>
84%
54085
89%
**59
100%
ReloadSwiss RS 62
<<locked>>
89%
54679
90%
**40
100%
ReloadSwiss RS 70
<<locked>>
89%
54244
89%
**86
100%
ReloadSwiss RS 76
<<locked>>
97%
42351
70%
**02
97%
Rottweil R 903
<<locked>>
84%
54476
89%
**64
100%
Rottweil R 904
<<locked>>
93%
54288
89%
**74
97%
Rottweil R 905
<<locked>>
95%
54665
90%
**36
98%
Rottweil R 907
<<locked>>
87%
54766
90%
**61
99%
SNPE Vectan SP 11
<<locked>>
84%
54607
90%
**94
100%
SNPE Vectan Tubal 5000
<<locked>>
84%
54824
90%
**36
100%
SNPE Vectan Tubal 7000
<<locked>>
88%
54433
89%
**12
99%
Shooters World Long Rifle
<<locked>>
88%
54360
89%
**58
100%
Somchem S355
<<locked>>
84%
54433
89%
**58
100%
Somchem S361
<<locked>>
92%
54157
89%
**38
96%
Somchem S365
<<locked>>
92%
54418
89%
**23
100%
Somchem S385
<<locked>>
95%
54752
90%
**97
99%
Vihtavuori N135
<<locked>>
85%
54404
89%
**76
100%
Vihtavuori N150
<<locked>>
89%
54766
90%
**18
100%
Vihtavuori N160
<<locked>>
87%
54592
90%
**74
100%
Vihtavuori N165
<<locked>>
97%
48892
80%
**76
97%
Vihtavuori N550
<<locked>>
87%
54534
90%
**10
100%
Vihtavuori N555 👍
<<locked>>
96%
54737
90%
**46
100%
Vihtavuori N560
<<locked>>
97%
53171
87%
**76
96%
[Vihtavuori N565]*
<<locked>>
97%
45179
74%
**89
94%
Winchester 6.5 StaBALL
<<locked>>
88%
54172
89%
**41
100%
Winchester 760
<<locked>>
85%
54766
90%
**33
99%
Winchester StaBALL HD 👍
<<locked>>
97%
45571
75%
**33
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2208
<<locked>>
81%
50589
83%
**82
100%
[ADI AR 2209]*
<<locked>>
81%
35273
58%
**17
91%
[ADI AR 2213]*
<<locked>>
86%
37565
62%
**85
90%
[ADI AR 2225]*
<<locked>>
94%
31459
52%
**51
90%
Accurate 2700
<<locked>>
81%
48994
80%
**07
97%
[Accurate 3100]*
<<locked>>
81%
30719
50%
**66
93%
Accurate 4350
<<locked>>
81%
41698
68%
**74
99%
[Accurate MAGPRO]*
<<locked>>
91%
42090
69%
**17
90%
Alliant Reloder-16
<<locked>>
81%
40103
66%
**77
99%
Alliant Reloder-17
<<locked>>
81%
46238
76%
**22
100%
[Alliant Reloder-19]*
<<locked>>
81%
35027
57%
**03
91%
[Alliant Reloder-22]*
<<locked>>
83%
32851
54%
**90
90%
Alliant Reloder-23
<<locked>>
81%
29660
49%
**98
96%
[Alliant Reloder-25]*
<<locked>>
82%
27050
44%
**13
90%
Alliant Reloder-26
<<locked>>
81%
32068
53%
**33
95%
[Baschieri & Pellagri 109]*
<<locked>>
93%
46688
77%
**17
90%
[Bofors RP15]*
<<locked>>
85%
33185
54%
**90
90%
[Bofors RP30]*
<<locked>>
93%
35056
58%
**69
90%
[Bofors RP5]*
<<locked>>
83%
32851
54%
**90
90%
Bofors RP7
<<locked>>
81%
45411
75%
**87
97%
Hodgdon H414
<<locked>>
81%
47514
78%
**99
98%
[Hodgdon H4350]*
<<locked>>
81%
38725
64%
**53
94%
[Hodgdon H4831]*
<<locked>>
89%
37942
62%
**62
90%
[Hodgdon H4831 SC]*
<<locked>>
85%
37942
62%
**62
90%
Hodgdon Hybrid 100V
<<locked>>
81%
37637
62%
**59
99%
Hodgdon LVR
<<locked>>
81%
44454
73%
**30
99%
[Hodgdon Retumbo]*
<<locked>>
94%
31459
52%
**51
90%
Hodgdon Superperformance
<<locked>>
81%
42917
70%
**36
96%
Hodgdon VARGET
<<locked>>
81%
50024
82%
**72
100%
Hodgdon TrailBoss
<<locked>>
81%
27775
46%
**75
100%
IMR 4064
<<locked>>
81%
49690
82%
**59
100%
IMR 4166 Enduron
<<locked>>
81%
48559
80%
**27
98%
IMR 4350
<<locked>>
81%
40930
67%
**02
95%
IMR 4451 Enduron
<<locked>>
81%
46891
77%
**17
97%
IMR 4831
<<locked>>
81%
36201
59%
**30
97%
[IMR 4955 Enduron]*
<<locked>>
84%
37159
61%
**07
90%
[IMR 7828 SSC]*
<<locked>>
86%
37289
61%
**99
90%
Lovex S065
<<locked>>
81%
44193
73%
**61
98%
Lovex S070
<<locked>>
81%
42467
70%
**35
97%
[Lovex S071]*
<<locked>>
81%
26426
43%
**34
90%
[Norma 204]*
<<locked>>
81%
40611
67%
**28
94%
[Norma MRP]*
<<locked>>
81%
32213
53%
**00
92%
Norma URP
<<locked>>
81%
41234
68%
**54
98%
[Ramshot Grand]*
<<locked>>
84%
36593
60%
**92
90%
Ramshot Hunter
<<locked>>
81%
40103
66%
**41
97%
[Ramshot Magnum]*
<<locked>>
84%
31720
52%
**35
90%
ReloadSwiss RS 14
<<locked>>
81%
28384
47%
**18
100%
ReloadSwiss RS 60
<<locked>>
81%
48950
80%
**71
100%
ReloadSwiss RS 62
<<locked>>
81%
41568
68%
**90
98%
ReloadSwiss RS 70
<<locked>>
81%
40103
66%
**97
98%
[ReloadSwiss RS 76]*
<<locked>>
89%
32097
53%
**00
90%
Rottweil R 903
<<locked>>
81%
49037
81%
**63
100%
[Rottweil R 904]*
<<locked>>
81%
36651
60%
**10
91%
[Rottweil R 905]*
<<locked>>
81%
34229
56%
**87
91%
Rottweil R 907
<<locked>>
81%
45411
75%
**87
97%
SNPE Vectan SP 11
<<locked>>
81%
50314
83%
**25
100%
SNPE Vectan Tubal 5000
<<locked>>
81%
49893
82%
**61
100%
SNPE Vectan Tubal 7000
<<locked>>
81%
43395
71%
**05
97%
Shooters World Long Rifle
<<locked>>
81%
44193
73%
**61
98%
Somchem S355
<<locked>>
81%
48950
80%
**63
100%
[Somchem S361]*
<<locked>>
82%
38101
63%
**10
90%
Somchem S365
<<locked>>
81%
37797
62%
**22
100%
[Somchem S385]*
<<locked>>
81%
34911
57%
**77
93%
Vihtavuori N135
<<locked>>
81%
47645
78%
**67
100%
Vihtavuori N150
<<locked>>
81%
42090
69%
**95
100%
Vihtavuori N160
<<locked>>
81%
44411
73%
**97
99%
[Vihtavuori N165]*
<<locked>>
83%
30908
51%
**59
90%
Vihtavuori N550
<<locked>>
81%
45194
74%
**43
99%
Vihtavuori N555
<<locked>>
81%
32982
54%
**87
97%
[Vihtavuori N560]*
<<locked>>
87%
38072
63%
**38
90%
[Vihtavuori N565]*
<<locked>>
91%
37072
61%
**02
90%
Winchester 6.5 StaBALL
<<locked>>
81%
41814
69%
**22
100%
Winchester 760
<<locked>>
81%
47514
78%
**99
98%
Winchester StaBALL HD
<<locked>>
81%
23743
39%
**66
95%

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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