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Load data for .300 Lapua Mag. + .308 | 180gr | Warner Tool Co. Flat Line

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

.300 Lapua Mag. + .308 | 180gr | Warner Tool Co. Flat Line

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.308 | 180gr | Warner Tool Co. Flat Line
Manufacturer SKU:
5001
Bullet Weight:
180gr | 11.7g
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_B12224_C363
Last updated:
2026-02-12

Load data for 156 loads in caliber .300 Lapua Mag. with .308 | 180gr | Warner Tool Co. Flat Line bullet and 78 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%
54302
89%
**15
100%
ADI AR 2209
<<locked>>
95%
54708
90%
**13
98%
ADI AR 2213
<<locked>>
97%
52547
86%
**07
97%
[ADI AR 2217]*
<<locked>>
97%
38522
63%
**12
92%
[ADI AR 2225]*
<<locked>>
97%
34171
56%
**62
94%
Accurate 2700
<<locked>>
84%
54433
89%
**76
99%
Accurate 3100
<<locked>>
97%
52431
86%
**35
100%
Accurate 4350
<<locked>>
89%
54099
89%
**77
100%
Accurate MAGPRO
<<locked>>
97%
51213
84%
**00
95%
Alliant Reloder- TS 15.5
<<locked>>
83%
54679
90%
**31
100%
Alliant Reloder-16
<<locked>>
91%
54810
90%
**30
100%
Alliant Reloder-17
<<locked>>
86%
54360
89%
**27
100%
Alliant Reloder-19
<<locked>>
95%
54621
90%
**10
99%
Alliant Reloder-22
<<locked>>
97%
51851
85%
**13
98%
Alliant Reloder-23
<<locked>>
97%
49298
81%
**48
100%
Alliant Reloder-25
<<locked>>
97%
43105
71%
**79
99%
Alliant Reloder-26 👍
<<locked>>
96%
54723
90%
**12
100%
[Baschieri & Pellagri 109]*
<<locked>>
97%
52315
86%
**25
93%
Bofors RP15
<<locked>>
97%
47703
78%
**35
97%
[Bofors RP30]*
<<locked>>
97%
39276
64%
**90
94%
Bofors RP5
<<locked>>
97%
51851
85%
**13
98%
Bofors RP7
<<locked>>
87%
54317
89%
**25
99%
[Hodgdon H1000]*
<<locked>>
97%
38522
63%
**12
92%
Hodgdon H414
<<locked>>
85%
54679
90%
**04
99%
Hodgdon H4350
<<locked>>
92%
54795
90%
**51
99%
Hodgdon H4831
<<locked>>
97%
49110
81%
**89
95%
Hodgdon H4831 SC
<<locked>>
96%
54418
89%
**87
97%
Hodgdon Hybrid 100V
<<locked>>
92%
54694
90%
**41
100%
Hodgdon LVR
<<locked>>
87%
54766
90%
**77
100%
[Hodgdon Retumbo]*
<<locked>>
97%
34171
56%
**62
94%
Hodgdon Superperformance
<<locked>>
88%
54099
89%
**23
99%
Hodgdon VARGET
<<locked>>
84%
54665
90%
**18
100%
Hodgdon TrailBoss
<<locked>>
97%
35099
58%
**52
100%
IMR 4064
<<locked>>
84%
54186
89%
**05
100%
IMR 4166 Enduron
<<locked>>
85%
54389
89%
**99
99%
IMR 4350
<<locked>>
90%
54781
90%
**51
99%
IMR 4451 Enduron
<<locked>>
86%
54331
89%
**28
99%
IMR 4831 👍
<<locked>>
94%
54592
90%
**67
100%
IMR 4955 Enduron
<<locked>>
97%
54360
89%
**51
97%
IMR 7828 SSC
<<locked>>
97%
54592
90%
**56
98%
Lovex S065
<<locked>>
88%
54012
89%
**15
100%
Lovex S070
<<locked>>
89%
54302
89%
**38
99%
Lovex S071
<<locked>>
97%
43787
72%
**87
99%
Norma 204
<<locked>>
90%
54752
90%
**90
98%
Norma MRP
<<locked>>
96%
54172
89%
**72
99%
Norma URP
<<locked>>
90%
54505
89%
**84
100%
Ramshot Grand
<<locked>>
95%
54360
89%
**69
98%
Ramshot Hunter 👍
<<locked>>
90%
54766
90%
**04
100%
Ramshot Magnum
<<locked>>
97%
50633
83%
**71
99%
ReloadSwiss RS 14
<<locked>>
97%
35810
59%
**98
100%
ReloadSwiss RS 60
<<locked>>
84%
54737
90%
**23
100%
ReloadSwiss RS 62
<<locked>>
89%
54679
90%
**07
100%
ReloadSwiss RS 70
<<locked>>
90%
54360
89%
**49
100%
ReloadSwiss RS 76
<<locked>>
97%
41640
68%
**85
97%
Rottweil R 903
<<locked>>
84%
54302
89%
**22
100%
Rottweil R 904
<<locked>>
94%
54824
90%
**64
98%
Rottweil R 905
<<locked>>
95%
54114
89%
**00
99%
Rottweil R 907
<<locked>>
87%
54317
89%
**25
99%
SNPE Vectan SP 11
<<locked>>
83%
54056
89%
**54
100%
SNPE Vectan Tubal 5000
<<locked>>
84%
54288
89%
**97
100%
SNPE Vectan Tubal 7000
<<locked>>
88%
54665
90%
**89
99%
Shooters World Long Rifle
<<locked>>
88%
54012
89%
**15
100%
Somchem S355
<<locked>>
85%
54737
90%
**25
100%
Somchem S361
<<locked>>
92%
54317
89%
**18
97%
Somchem S365
<<locked>>
92%
54099
89%
**87
100%
Somchem S385
<<locked>>
95%
54273
89%
**64
99%
Vihtavuori N135
<<locked>>
86%
54491
89%
**33
100%
Vihtavuori N150
<<locked>>
89%
54172
89%
**72
100%
Vihtavuori N160
<<locked>>
87%
54723
90%
**44
100%
Vihtavuori N165
<<locked>>
97%
48457
80%
**62
98%
Vihtavuori N550
<<locked>>
87%
54723
90%
**90
100%
Vihtavuori N555 👍
<<locked>>
96%
54520
90%
**10
100%
Vihtavuori N560
<<locked>>
97%
52663
86%
**36
97%
Vihtavuori N565
<<locked>>
97%
44498
73%
**72
95%
Winchester 6.5 StaBALL
<<locked>>
89%
54563
90%
**22
100%
Winchester 760
<<locked>>
85%
54679
90%
**04
99%
Winchester StaBALL HD 👍
<<locked>>
97%
44614
73%
**97
100%
Winchester Supreme 780
<<locked>>
94%
54491
89%
**64
98%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2208
<<locked>>
81%
50212
82%
**46
100%
[ADI AR 2209]*
<<locked>>
81%
35027
58%
**10
93%
[ADI AR 2213]*
<<locked>>
84%
34229
56%
**10
90%
[ADI AR 2217]*
<<locked>>
93%
34693
57%
**07
90%
[ADI AR 2225]*
<<locked>>
91%
28979
48%
**02
90%
Accurate 2700
<<locked>>
81%
48428
79%
**84
98%
[Accurate 3100]*
<<locked>>
81%
30647
50%
**85
94%
Accurate 4350
<<locked>>
81%
41611
68%
**61
99%
[Accurate MAGPRO]*
<<locked>>
89%
38450
63%
**44
90%
Alliant Reloder- TS 15.5
<<locked>>
81%
51314
84%
**72
100%
Alliant Reloder-16
<<locked>>
81%
40219
66%
**71
99%
Alliant Reloder-17
<<locked>>
81%
46035
76%
**92
100%
[Alliant Reloder-19]*
<<locked>>
81%
34969
57%
**13
93%
[Alliant Reloder-22]*
<<locked>>
81%
30719
50%
**38
91%
Alliant Reloder-23
<<locked>>
81%
29486
48%
**21
98%
[Alliant Reloder-25]*
<<locked>>
81%
25976
43%
**03
91%
Alliant Reloder-26
<<locked>>
81%
31749
52%
**33
96%
[Baschieri & Pellagri 109]*
<<locked>>
91%
43294
71%
**44
90%
[Bofors RP15]*
<<locked>>
82%
29994
49%
**18
90%
[Bofors RP30]*
<<locked>>
91%
32010
53%
**03
90%
[Bofors RP5]*
<<locked>>
81%
30719
50%
**38
91%
Bofors RP7
<<locked>>
81%
45281
74%
**67
98%
[Hodgdon H1000]*
<<locked>>
93%
34693
57%
**07
90%
Hodgdon H414
<<locked>>
81%
47195
77%
**76
99%
Hodgdon H4350
<<locked>>
81%
38638
63%
**52
96%
[Hodgdon H4831]*
<<locked>>
86%
35114
58%
**90
90%
[Hodgdon H4831 SC]*
<<locked>>
83%
34853
57%
**87
90%
Hodgdon Hybrid 100V
<<locked>>
81%
37637
62%
**49
100%
Hodgdon LVR
<<locked>>
81%
44251
73%
**07
99%
[Hodgdon Retumbo]*
<<locked>>
91%
28979
48%
**02
90%
Hodgdon Superperformance
<<locked>>
81%
42366
70%
**17
97%
Hodgdon VARGET
<<locked>>
81%
50009
82%
**43
100%
Hodgdon TrailBoss
<<locked>>
85%
29472
48%
**40
100%
IMR 4064
<<locked>>
81%
49530
81%
**26
100%
IMR 4166 Enduron
<<locked>>
81%
48370
79%
**97
99%
IMR 4350
<<locked>>
81%
40683
67%
**95
96%
IMR 4451 Enduron
<<locked>>
81%
46586
76%
**87
98%
IMR 4831
<<locked>>
81%
36013
59%
**20
98%
[IMR 4955 Enduron]*
<<locked>>
81%
33750
55%
**31
90%
[IMR 7828 SSC]*
<<locked>>
83%
34055
56%
**16
90%
Lovex S065
<<locked>>
81%
43976
72%
**41
99%
Lovex S070
<<locked>>
81%
42366
70%
**25
98%
[Lovex S071]*
<<locked>>
81%
26339
43%
**67
92%
Norma 204
<<locked>>
81%
40263
66%
**21
95%
[Norma MRP]*
<<locked>>
81%
31836
52%
**03
93%
Norma URP
<<locked>>
81%
41118
68%
**44
99%
[Ramshot Grand]*
<<locked>>
82%
33373
55%
**10
90%
Ramshot Hunter
<<locked>>
81%
39972
66%
**31
98%
[Ramshot Magnum]*
<<locked>>
82%
29167
48%
**82
90%
ReloadSwiss RS 14
<<locked>>
81%
28529
47%
**44
100%
ReloadSwiss RS 60
<<locked>>
81%
48863
80%
**38
100%
ReloadSwiss RS 62
<<locked>>
81%
41205
68%
**77
99%
ReloadSwiss RS 70
<<locked>>
81%
39943
66%
**80
99%
[ReloadSwiss RS 76]*
<<locked>>
87%
29399
48%
**34
90%
Rottweil R 903
<<locked>>
81%
48776
80%
**36
100%
[Rottweil R 904]*
<<locked>>
81%
36463
60%
**07
92%
[Rottweil R 905]*
<<locked>>
81%
33939
56%
**90
93%
Rottweil R 907
<<locked>>
81%
45281
74%
**67
98%
SNPE Vectan SP 11
<<locked>>
81%
50024
82%
**92
100%
SNPE Vectan Tubal 5000
<<locked>>
81%
49414
81%
**28
100%
SNPE Vectan Tubal 7000
<<locked>>
81%
43294
71%
**92
98%
Shooters World Long Rifle
<<locked>>
81%
43976
72%
**41
99%
Somchem S355
<<locked>>
81%
48704
80%
**30
100%
[Somchem S361]*
<<locked>>
81%
37057
61%
**90
91%
Somchem S365
<<locked>>
81%
37623
62%
**05
100%
[Somchem S385]*
<<locked>>
81%
34548
57%
**77
94%
Vihtavuori N135
<<locked>>
81%
47572
78%
**35
100%
Vihtavuori N150
<<locked>>
81%
42047
69%
**79
100%
Vihtavuori N160
<<locked>>
81%
44208
73%
**77
100%
[Vihtavuori N165]*
<<locked>>
81%
29182
48%
**36
91%
Vihtavuori N550
<<locked>>
81%
45020
74%
**23
100%
Vihtavuori N555
<<locked>>
81%
32837
54%
**97
98%
[Vihtavuori N560]*
<<locked>>
85%
34838
57%
**62
90%
[Vihtavuori N565]*
<<locked>>
89%
33417
55%
**23
90%
Winchester 6.5 StaBALL
<<locked>>
81%
41568
68%
**08
100%
Winchester 760
<<locked>>
81%
47195
77%
**76
99%
Winchester StaBALL HD
<<locked>>
81%
23583
39%
**05
97%
[Winchester Supreme 780]*
<<locked>>
81%
34461
57%
**80
93%

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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