top of page

Load data for .300 Lapua Mag. + .308 | 155gr | Sierra Tipped MatchKing

Recommended Powder(s):

.300 Lapua Mag. + .308 | 155gr | Sierra Tipped MatchKing

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.308 | 155gr | Sierra Tipped MatchKing
Manufacturer SKU:
7755
Bullet Weight:
155gr | 10.0g
Bullet Diameter:
0.308" | 7.82mm
Bullet Length:
1.273" | 32.3mm
Caliber:
.300 Lapua Mag. load data
Case Length (l3):
2.724" | 69.2mm
Cartridge Length (C.O.L.):
3.625" | 92.1mm
Seated Depth:
0.372" | 9.5mm
Shank Seated Depth:
0.195" | 5.0mm
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_B5880_C363
Last updated:
2025-01-01
Recommended Twist Rate:
1:13 - 1:11

Load data for 136 loads in caliber .300 Lapua Mag. with .308 | 155gr | Sierra Tipped MatchKing bullet and 68 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".

  • No data yet

  • .

    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>>
83%
54810
90%
**54
100%
ADI AR 2209
<<locked>>
94%
54346
89%
**33
98%
ADI AR 2213
<<locked>>
97%
54781
90%
**59
97%
[ADI AR 2225]*
<<locked>>
97%
35360
58%
**69
93%
Accurate 2700
<<locked>>
84%
54824
90%
**09
99%
Accurate 3100
<<locked>>
97%
53998
89%
**68
99%
Accurate 4350
<<locked>>
88%
54621
90%
**07
100%
[Accurate MAGPRO]*
<<locked>>
97%
53084
87%
**53
94%
Alliant Reloder-16
<<locked>>
90%
54592
90%
**56
100%
Alliant Reloder-17
<<locked>>
85%
54505
89%
**50
100%
Alliant Reloder-19
<<locked>>
94%
54534
90%
**23
98%
Alliant Reloder-22
<<locked>>
97%
54099
89%
**63
98%
Alliant Reloder-23
<<locked>>
97%
50894
84%
**87
100%
Alliant Reloder-25
<<locked>>
97%
44208
73%
**92
99%
Alliant Reloder-26 👍
<<locked>>
95%
54491
89%
**28
100%
Hodgdon H414
<<locked>>
84%
54505
89%
**23
99%
Hodgdon H4350
<<locked>>
91%
54447
89%
**71
99%
Hodgdon H4831
<<locked>>
97%
50285
83%
**25
95%
Hodgdon H4831 SC
<<locked>>
96%
54650
90%
**04
96%
Hodgdon Hybrid 100V
<<locked>>
91%
54288
89%
**68
100%
Hodgdon LVR
<<locked>>
87%
54578
90%
**04
100%
[Hodgdon Retumbo]*
<<locked>>
97%
35360
58%
**69
93%
Hodgdon Superperformance
<<locked>>
87%
54360
89%
**46
99%
Hodgdon VARGET
<<locked>>
83%
54375
89%
**41
100%
Hodgdon TrailBoss
<<locked>>
97%
35259
58%
**42
100%
IMR 4064
<<locked>>
84%
54389
89%
**35
100%
IMR 4166 Enduron
<<locked>>
84%
54230
89%
**28
99%
IMR 4350
<<locked>>
90%
54491
89%
**71
99%
IMR 4451 Enduron
<<locked>>
86%
54810
90%
**61
99%
IMR 4831 👍
<<locked>>
93%
54549
90%
**91
100%
IMR 4955 Enduron
<<locked>>
96%
54215
89%
**54
96%
IMR 7828 SSC
<<locked>>
96%
54346
89%
**76
97%
Lovex S065
<<locked>>
87%
54549
90%
**45
100%
Lovex S070
<<locked>>
88%
54375
89%
**71
99%
Lovex S071
<<locked>>
97%
45136
74%
**07
98%
Norma 204
<<locked>>
89%
54679
90%
**10
98%
Norma MRP
<<locked>>
95%
54346
89%
**96
99%
Norma URP
<<locked>>
89%
54723
90%
**17
100%
Ramshot Hunter 👍
<<locked>>
90%
54491
89%
**30
100%
Ramshot Magnum
<<locked>>
97%
52373
86%
**17
98%
ReloadSwiss RS 14
<<locked>>
97%
35868
59%
**82
100%
ReloadSwiss RS 60
<<locked>>
86%
54520
90%
**79
100%
ReloadSwiss RS 62
<<locked>>
88%
54215
89%
**20
100%
ReloadSwiss RS 70
<<locked>>
89%
54389
89%
**82
100%
ReloadSwiss RS 76
<<locked>>
97%
43337
71%
**25
97%
Rottweil R 903
<<locked>>
84%
54737
90%
**51
100%
Rottweil R 904
<<locked>>
93%
54114
89%
**74
97%
Rottweil R 905
<<locked>>
94%
54476
89%
**17
98%
Rottweil R 907
<<locked>>
86%
54650
90%
**61
99%
SNPE Vectan SP 11
<<locked>>
83%
54578
90%
**84
100%
SNPE Vectan Tubal 5000
<<locked>>
84%
54781
90%
**30
100%
SNPE Vectan Tubal 7000
<<locked>>
87%
54447
89%
**99
99%
Shooters World Long Rifle
<<locked>>
87%
54549
90%
**45
100%
Somchem S355
<<locked>>
84%
54563
90%
**45
100%
Somchem S361
<<locked>>
92%
54737
90%
**41
96%
Somchem S365
<<locked>>
91%
54360
89%
**07
100%
Somchem S385
<<locked>>
94%
54201
89%
**91
99%
Vihtavuori N135
<<locked>>
85%
54447
89%
**66
100%
Vihtavuori N150
<<locked>>
89%
54679
90%
**15
100%
Vihtavuori N160
<<locked>>
87%
54650
90%
**71
100%
Vihtavuori N165
<<locked>>
97%
50285
83%
**99
98%
Vihtavuori N550
<<locked>>
86%
54418
89%
**07
100%
Vihtavuori N555 👍
<<locked>>
96%
54737
90%
**36
100%
Vihtavuori N560
<<locked>>
97%
54346
89%
**86
96%
[Vihtavuori N565]*
<<locked>>
97%
45818
75%
**95
94%
Winchester 6.5 StaBALL
<<locked>>
88%
54288
89%
**35
100%
Winchester 760
<<locked>>
84%
54505
89%
**23
99%
Winchester StaBALL HD 👍
<<locked>>
97%
47036
77%
**40
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2208
<<locked>>
81%
51053
84%
**86
100%
[ADI AR 2209]*
<<locked>>
81%
35824
59%
**17
92%
[ADI AR 2213]*
<<locked>>
86%
37347
61%
**76
90%
[ADI AR 2225]*
<<locked>>
93%
31285
51%
**35
90%
Accurate 2700
<<locked>>
81%
49327
81%
**07
98%
[Accurate 3100]*
<<locked>>
81%
31444
52%
**79
93%
Accurate 4350
<<locked>>
81%
42612
70%
**84
99%
[Accurate MAGPRO]*
<<locked>>
90%
41655
68%
**07
90%
Alliant Reloder-16
<<locked>>
81%
40930
67%
**84
99%
Alliant Reloder-17
<<locked>>
81%
47007
77%
**22
100%
[Alliant Reloder-19]*
<<locked>>
81%
35723
59%
**23
92%
[Alliant Reloder-22]*
<<locked>>
82%
32706
54%
**77
90%
Alliant Reloder-23
<<locked>>
81%
30153
49%
**15
97%
[Alliant Reloder-25]*
<<locked>>
82%
27108
45%
**03
90%
Alliant Reloder-26
<<locked>>
81%
32721
54%
**40
95%
Hodgdon H414
<<locked>>
81%
48327
79%
**12
98%
Hodgdon H4350
<<locked>>
81%
39465
65%
**59
95%
[Hodgdon H4831]*
<<locked>>
88%
37739
62%
**53
90%
[Hodgdon H4831 SC]*
<<locked>>
85%
37739
62%
**53
90%
Hodgdon Hybrid 100V
<<locked>>
81%
38508
63%
**69
99%
Hodgdon LVR
<<locked>>
81%
45063
74%
**30
99%
[Hodgdon Retumbo]*
<<locked>>
93%
31285
51%
**35
90%
Hodgdon Superperformance
<<locked>>
81%
43642
72%
**40
97%
Hodgdon VARGET
<<locked>>
81%
50894
84%
**86
100%
Hodgdon TrailBoss
<<locked>>
81%
27934
46%
**75
100%
IMR 4064
<<locked>>
81%
50198
82%
**63
100%
IMR 4166 Enduron
<<locked>>
81%
48994
80%
**30
98%
IMR 4350
<<locked>>
81%
41321
68%
**02
96%
IMR 4451 Enduron
<<locked>>
81%
47398
78%
**20
98%
IMR 4831
<<locked>>
81%
36666
60%
**23
97%
[IMR 4955 Enduron]*
<<locked>>
84%
37144
61%
**97
90%
[IMR 7828 SSC]*
<<locked>>
85%
37072
61%
**85
90%
Lovex S065
<<locked>>
81%
44904
74%
**67
98%
Lovex S070
<<locked>>
81%
43134
71%
**51
97%
[Lovex S071]*
<<locked>>
81%
26905
44%
**48
91%
[Norma 204]*
<<locked>>
81%
40988
67%
**41
94%
[Norma MRP]*
<<locked>>
81%
32634
54%
**03
92%
Norma URP
<<locked>>
81%
41974
69%
**71
99%
Ramshot Hunter
<<locked>>
81%
40741
67%
**51
97%
[Ramshot Magnum]*
<<locked>>
83%
31546
52%
**28
90%
ReloadSwiss RS 14
<<locked>>
81%
28485
47%
**18
100%
ReloadSwiss RS 60
<<locked>>
81%
45324
74%
**09
100%
ReloadSwiss RS 62
<<locked>>
81%
42395
70%
**94
99%
ReloadSwiss RS 70
<<locked>>
81%
40814
67%
**04
98%
[ReloadSwiss RS 76]*
<<locked>>
88%
31589
52%
**77
90%
Rottweil R 903
<<locked>>
81%
49719
82%
**72
100%
[Rottweil R 904]*
<<locked>>
81%
37028
61%
**13
91%
[Rottweil R 905]*
<<locked>>
81%
34737
57%
**94
92%
Rottweil R 907
<<locked>>
81%
46050
76%
**94
97%
SNPE Vectan SP 11
<<locked>>
81%
51010
84%
**28
100%
SNPE Vectan Tubal 5000
<<locked>>
81%
50372
83%
**61
100%
SNPE Vectan Tubal 7000
<<locked>>
81%
44251
73%
**12
97%
Shooters World Long Rifle
<<locked>>
81%
44904
74%
**67
98%
Somchem S355
<<locked>>
81%
49734
82%
**66
100%
[Somchem S361]*
<<locked>>
81%
37782
62%
**94
90%
Somchem S365
<<locked>>
81%
38421
63%
**15
100%
[Somchem S385]*
<<locked>>
81%
35404
58%
**90
93%
Vihtavuori N135
<<locked>>
81%
48240
79%
**61
100%
Vihtavuori N150
<<locked>>
81%
42685
70%
**02
100%
Vihtavuori N160
<<locked>>
81%
45237
74%
**04
99%
[Vihtavuori N165]*
<<locked>>
82%
30777
51%
**46
90%
Vihtavuori N550
<<locked>>
81%
45629
75%
**43
99%
Vihtavuori N555
<<locked>>
81%
33707
55%
**97
97%
[Vihtavuori N560]*
<<locked>>
86%
37652
62%
**22
90%
[Vihtavuori N565]*
<<locked>>
90%
36434
60%
**79
90%
Winchester 6.5 StaBALL
<<locked>>
81%
42496
70%
**35
100%
Winchester 760
<<locked>>
81%
48327
79%
**12
98%
Winchester StaBALL HD
<<locked>>
81%
24265
40%
**72
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.

bottom of page