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Load data for .300 Lapua Mag. + .308 | 155gr | Hornady A-MAX

Recommended Powder(s): Alliant Reloder-23, Alliant Reloder-26, IMR 4831, Vihtavuori N555, Winchester StaBALL HD

.300 Lapua Mag. + .308 | 155gr | Hornady A-MAX

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.308 | 155gr | Hornady A-MAX
Manufacturer SKU:
30312
Bullet Weight:
155gr | 10.0g
Bullet Diameter:
0.308" | 7.82mm
Bullet Length:
1.183" | 30.0mm
Caliber:
.300 Lapua Mag. load data
Case Length (l3):
2.724" | 69.2mm
Cartridge Length (C.O.L.):
3.625" | 92.1mm
Seated Depth:
0.282" | 7.2mm
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_B2675_C363
Last updated:
2025-01-01
Recommended Twist Rate:
1:14 - 1:12

Load data for 134 loads in caliber .300 Lapua Mag. with .308 | 155gr | Hornady A-MAX bullet and 67 powders such as Alliant Reloder-23, Alliant Reloder-26, IMR 4831, 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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    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 2209
<<locked>>
93%
54418
89%
**30
98%
ADI AR 2213
<<locked>>
96%
54389
89%
**66
97%
[ADI AR 2217]*
<<locked>>
97%
40132
66%
**35
92%
[ADI AR 2225]*
<<locked>>
97%
35969
59%
**95
94%
Accurate 2700
<<locked>>
84%
54795
90%
**05
99%
Accurate 3100
<<locked>>
96%
54418
89%
**84
100%
Accurate 4350
<<locked>>
88%
54447
89%
**04
100%
Accurate MAGPRO
<<locked>>
97%
54520
89%
**69
95%
Alliant Reloder-16
<<locked>>
89%
54563
90%
**56
100%
Alliant Reloder-17
<<locked>>
85%
54766
90%
**59
100%
Alliant Reloder-19
<<locked>>
93%
54302
89%
**20
98%
Alliant Reloder-22
<<locked>>
97%
54549
90%
**69
98%
Alliant Reloder-23 👍
<<locked>>
97%
52098
86%
**07
100%
Alliant Reloder-25
<<locked>>
97%
44860
74%
**15
99%
Alliant Reloder-26 👍
<<locked>>
94%
54592
90%
**28
100%
[Hodgdon H1000]*
<<locked>>
97%
40132
66%
**35
92%
Hodgdon H414
<<locked>>
84%
54549
90%
**30
99%
Hodgdon H4350
<<locked>>
91%
54288
89%
**71
99%
Hodgdon H4831
<<locked>>
97%
51184
84%
**45
95%
Hodgdon H4831 SC
<<locked>>
95%
54302
89%
**94
96%
Hodgdon Hybrid 100V
<<locked>>
91%
54650
90%
**74
100%
Hodgdon LVR
<<locked>>
86%
54520
89%
**07
100%
[Hodgdon Retumbo]*
<<locked>>
97%
35969
59%
**95
94%
Hodgdon Superperformance
<<locked>>
86%
54244
89%
**46
99%
Hodgdon TrailBoss
<<locked>>
97%
35172
58%
**46
100%
IMR 4064
<<locked>>
83%
54766
90%
**41
100%
IMR 4166 Enduron
<<locked>>
84%
54520
90%
**35
99%
IMR 4350
<<locked>>
89%
54636
90%
**71
99%
IMR 4451 Enduron
<<locked>>
85%
54462
89%
**54
99%
IMR 4831 👍
<<locked>>
93%
54563
90%
**84
100%
IMR 4955 Enduron
<<locked>>
96%
54795
90%
**74
96%
IMR 7828 SSC
<<locked>>
95%
54433
89%
**69
97%
Lovex S065
<<locked>>
87%
54433
89%
**48
100%
Lovex S070
<<locked>>
88%
54230
89%
**71
99%
Lovex S071
<<locked>>
97%
45672
75%
**17
98%
Norma 204
<<locked>>
89%
54766
90%
**20
98%
Norma MRP
<<locked>>
95%
54476
89%
**02
99%
Norma URP
<<locked>>
88%
54621
90%
**17
100%
Ramshot Hunter
<<locked>>
89%
54607
90%
**23
100%
Ramshot Magnum
<<locked>>
97%
53751
88%
**30
99%
ReloadSwiss RS 14
<<locked>>
96%
35766
59%
**88
100%
ReloadSwiss RS 60
<<locked>>
86%
54607
90%
**86
100%
ReloadSwiss RS 62
<<locked>>
88%
54505
89%
**30
100%
ReloadSwiss RS 70
<<locked>>
89%
54462
89%
**76
100%
ReloadSwiss RS 76
<<locked>>
97%
43932
72%
**41
97%
Rottweil R 903
<<locked>>
83%
54708
90%
**51
100%
Rottweil R 904
<<locked>>
93%
54795
90%
**81
97%
Rottweil R 905
<<locked>>
94%
54563
90%
**23
98%
Rottweil R 907
<<locked>>
86%
54099
89%
**48
99%
SNPE Vectan Tubal 5000
<<locked>>
83%
54563
90%
**30
100%
SNPE Vectan Tubal 7000
<<locked>>
87%
54273
89%
**09
99%
Shooters World Long Rifle
<<locked>>
87%
54433
89%
**48
100%
Somchem S355
<<locked>>
84%
54578
90%
**48
100%
Somchem S361
<<locked>>
92%
54781
90%
**48
96%
Somchem S365
<<locked>>
91%
54723
90%
**20
100%
Somchem S385
<<locked>>
94%
54679
90%
**97
99%
Vihtavuori N135
<<locked>>
84%
54302
89%
**56
100%
Vihtavuori N150
<<locked>>
88%
54636
90%
**05
100%
Vihtavuori N160
<<locked>>
86%
54085
89%
**68
100%
Vihtavuori N165
<<locked>>
97%
50575
83%
**02
98%
Vihtavuori N550
<<locked>>
86%
54621
90%
**07
100%
Vihtavuori N555 👍
<<locked>>
95%
54012
89%
**30
100%
Vihtavuori N560
<<locked>>
97%
54476
89%
**89
96%
[Vihtavuori N565]*
<<locked>>
97%
46905
77%
**12
94%
Winchester 6.5 StaBALL
<<locked>>
88%
54476
89%
**45
100%
Winchester 760
<<locked>>
84%
54549
90%
**30
99%
Winchester StaBALL HD 👍
<<locked>>
97%
47630
78%
**53
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
[ADI AR 2209]*
<<locked>>
81%
36347
60%
**36
92%
[ADI AR 2213]*
<<locked>>
85%
36709
60%
**66
90%
[ADI AR 2217]*
<<locked>>
94%
36927
61%
**59
90%
[ADI AR 2225]*
<<locked>>
92%
30995
51%
**35
90%
Accurate 2700
<<locked>>
81%
50082
82%
**23
98%
[Accurate 3100]*
<<locked>>
81%
31966
52%
**02
94%
Accurate 4350
<<locked>>
81%
43134
71%
**87
99%
[Accurate MAGPRO]*
<<locked>>
89%
41321
68%
**00
90%
Alliant Reloder-16
<<locked>>
81%
41452
68%
**04
99%
Alliant Reloder-17
<<locked>>
81%
47935
79%
**35
100%
[Alliant Reloder-19]*
<<locked>>
81%
36129
59%
**30
92%
[Alliant Reloder-22]*
<<locked>>
81%
32372
53%
**61
90%
Alliant Reloder-23
<<locked>>
81%
30763
50%
**31
97%
[Alliant Reloder-25]*
<<locked>>
81%
27006
44%
**03
90%
Alliant Reloder-26
<<locked>>
81%
33388
55%
**59
96%
[Hodgdon H1000]*
<<locked>>
94%
36927
61%
**59
90%
Hodgdon H414
<<locked>>
81%
49153
81%
**28
98%
Hodgdon H4350
<<locked>>
81%
39914
66%
**79
95%
[Hodgdon H4831]*
<<locked>>
88%
37681
62%
**53
90%
[Hodgdon H4831 SC]*
<<locked>>
84%
37681
62%
**53
90%
Hodgdon Hybrid 100V
<<locked>>
81%
39044
64%
**89
99%
Hodgdon LVR
<<locked>>
81%
45818
75%
**49
99%
[Hodgdon Retumbo]*
<<locked>>
92%
30995
51%
**35
90%
Hodgdon Superperformance
<<locked>>
81%
44338
73%
**63
97%
Hodgdon TrailBoss
<<locked>>
81%
27934
46%
**78
100%
IMR 4064
<<locked>>
81%
50952
84%
**79
100%
IMR 4166 Enduron
<<locked>>
81%
49893
82%
**53
98%
IMR 4350
<<locked>>
81%
42119
69%
**25
96%
IMR 4451 Enduron
<<locked>>
81%
48124
79%
**40
98%
IMR 4831
<<locked>>
81%
37550
62%
**53
98%
[IMR 4955 Enduron]*
<<locked>>
83%
36506
60%
**87
90%
[IMR 7828 SSC]*
<<locked>>
84%
36753
60%
**79
90%
Lovex S065
<<locked>>
81%
45484
75%
**87
99%
Lovex S070
<<locked>>
81%
43598
72%
**58
97%
[Lovex S071]*
<<locked>>
81%
27369
45%
**61
91%
[Norma 204]*
<<locked>>
81%
41756
69%
**58
94%
[Norma MRP]*
<<locked>>
81%
33301
55%
**26
93%
Norma URP
<<locked>>
81%
42598
70%
**81
99%
Ramshot Hunter
<<locked>>
81%
41524
68%
**67
97%
[Ramshot Magnum]*
<<locked>>
83%
31357
51%
**21
90%
ReloadSwiss RS 14
<<locked>>
81%
28543
47%
**24
100%
ReloadSwiss RS 60
<<locked>>
81%
46180
76%
**38
100%
ReloadSwiss RS 62
<<locked>>
81%
42975
71%
**07
99%
ReloadSwiss RS 70
<<locked>>
81%
41539
68%
**17
98%
[ReloadSwiss RS 76]*
<<locked>>
88%
31676
52%
**84
90%
Rottweil R 903
<<locked>>
81%
50386
83%
**79
100%
[Rottweil R 904]*
<<locked>>
81%
37797
62%
**26
91%
[Rottweil R 905]*
<<locked>>
81%
35418
58%
**17
92%
Rottweil R 907
<<locked>>
81%
46688
77%
**10
97%
SNPE Vectan Tubal 5000
<<locked>>
81%
50937
84%
**77
100%
SNPE Vectan Tubal 7000
<<locked>>
81%
44614
73%
**28
97%
Shooters World Long Rifle
<<locked>>
81%
45484
75%
**87
99%
Somchem S355
<<locked>>
81%
50401
83%
**86
100%
[Somchem S361]*
<<locked>>
81%
38392
63%
**10
91%
Somchem S365
<<locked>>
81%
39233
64%
**35
100%
[Somchem S385]*
<<locked>>
81%
36027
59%
**03
94%
Vihtavuori N135
<<locked>>
81%
48950
80%
**84
100%
Vihtavuori N150
<<locked>>
81%
43250
71%
**12
100%
Vihtavuori N160
<<locked>>
81%
46093
76%
**20
99%
[Vihtavuori N165]*
<<locked>>
81%
30472
50%
**46
90%
Vihtavuori N550
<<locked>>
81%
46485
76%
**63
99%
Vihtavuori N555
<<locked>>
81%
34330
56%
**20
97%
[Vihtavuori N560]*
<<locked>>
85%
37463
62%
**08
90%
[Vihtavuori N565]*
<<locked>>
89%
36274
60%
**72
90%
Winchester 6.5 StaBALL
<<locked>>
81%
43178
71%
**44
100%
Winchester 760
<<locked>>
81%
49153
81%
**28
98%
Winchester StaBALL HD
<<locked>>
81%
25135
41%
**02
96%

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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