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Load data for .338 Lapua Mag. + .338 | 300gr | Woodleigh RN SN

Recommended Powder(s): ADI AR 2217, ADI AR 2225, Bofors RP30, Hodgdon H1000, Vihtavuori N565

.338 Lapua Mag. + .338 | 300gr | Woodleigh RN SN

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.338 | 300gr | Woodleigh RN SN
Manufacturer SKU:
58
Bullet Weight:
300gr | 19.4g
Bullet Diameter:
0.338" | 8.59mm
Bullet Length:
1.430" | 36.3mm
Caliber:
.338 Lapua Mag. load data
Case Length (l3):
2.724" | 69.2mm
Cartridge Length (C.O.L.):
3.626" | 92.1mm
Seated Depth:
0.528" | 13.4mm
Shank Seated Depth:
0.528" | 13.4mm
Case Capacity:
114.0 Grains of Water | 7.40 cm³
Primer Size:
Large Rifle Magnum (LRM)
Max. allowed Pressure:
60916 psi | 4200 bar
LID:
LID_B12106_C454
Last updated:
2026-01-15

Load data for 100 loads in caliber .338 Lapua Mag. with .338 | 300gr | Woodleigh RN SN bullet and 50 powders such as ADI AR 2217, ADI AR 2225, Bofors RP30, Hodgdon H1000, Vihtavuori N565. 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 2209
<<locked>>
85%
54143
89%
**77
100%
ADI AR 2213
<<locked>>
88%
54563
90%
**26
100%
ADI AR 2217 👍
<<locked>>
97%
53983
89%
**23
100%
ADI AR 2218
<<locked>>
97%
46456
76%
**97
97%
ADI AR 2225 👍
<<locked>>
97%
49008
80%
**93
100%
Accurate 3100
<<locked>>
88%
54418
89%
**28
100%
[Accurate 8700]*
<<locked>>
97%
36709
60%
**41
92%
Accurate MAGPRO
<<locked>>
88%
54476
89%
**39
99%
Alliant Reloder-19
<<locked>>
85%
54505
89%
**80
100%
Alliant Reloder-22
<<locked>>
88%
54302
89%
**10
100%
Alliant Reloder-23
<<locked>>
89%
54708
90%
**54
100%
Alliant Reloder-25
<<locked>>
93%
54781
90%
**26
100%
Alliant Reloder-26
<<locked>>
85%
54824
90%
**36
100%
Alliant Reloder-33
<<locked>>
97%
50937
84%
**46
98%
Alliant Reloder-50
<<locked>>
97%
43178
71%
**18
95%
Bofors RP15
<<locked>>
90%
54476
89%
**16
100%
Bofors RP30 👍
<<locked>>
95%
54360
89%
**39
100%
Bofors RP5
<<locked>>
88%
54302
89%
**10
100%
Hodgdon H1000 👍
<<locked>>
97%
53983
89%
**23
100%
Hodgdon H4350
<<locked>>
83%
54752
90%
**28
100%
Hodgdon H4831
<<locked>>
90%
54418
89%
**74
100%
Hodgdon H4831 SC
<<locked>>
87%
54824
90%
**74
100%
Hodgdon Retumbo
<<locked>>
97%
49008
80%
**93
100%
IMR 4831
<<locked>>
84%
54578
90%
**18
100%
IMR 4955 Enduron
<<locked>>
88%
54418
89%
**44
100%
IMR 7828 SSC
<<locked>>
87%
54476
89%
**33
100%
IMR 7977 Enduron
<<locked>>
93%
54766
90%
**21
95%
IMR 8133 Enduron
<<locked>>
97%
44918
74%
**25
99%
[Lovex D100]*
<<locked>>
97%
53287
87%
**48
94%
Lovex S071
<<locked>>
93%
54230
89%
**28
100%
Norma 217
<<locked>>
97%
45730
75%
**48
100%
Norma MRP
<<locked>>
86%
54578
90%
**30
100%
Ramshot Grand
<<locked>>
85%
54636
90%
**39
100%
Ramshot Magnum
<<locked>>
89%
54375
89%
**97
100%
ReloadSwiss RS 76
<<locked>>
93%
54549
90%
**98
100%
ReloadSwiss RS 80
<<locked>>
96%
54650
90%
**89
100%
Rottweil R 904
<<locked>>
85%
54505
89%
**44
100%
Rottweil R 905
<<locked>>
85%
54114
89%
**74
100%
[SNPE Vectan SP 13]*
<<locked>>
97%
38943
64%
**70
93%
[Shooters World 50 BMG]*
<<locked>>
97%
53287
87%
**48
94%
Somchem S361
<<locked>>
84%
54592
90%
**28
100%
Somchem S385
<<locked>>
85%
54375
89%
**48
100%
Vihtavuori N165
<<locked>>
91%
54810
90%
**41
100%
Vihtavuori N170
<<locked>>
97%
50328
83%
**21
96%
Vihtavuori N555
<<locked>>
86%
54346
89%
**48
100%
Vihtavuori N560
<<locked>>
88%
54389
89%
**36
100%
Vihtavuori N565 👍
<<locked>>
92%
54418
89%
**26
100%
Vihtavuori N568
<<locked>>
95%
54650
90%
**72
99%
Vihtavuori N570
<<locked>>
97%
54650
90%
**12
98%
Winchester StaBALL HD
<<locked>>
89%
54476
89%
**39
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2209
<<locked>>
81%
47587
78%
**85
100%
ADI AR 2213
<<locked>>
81%
42685
70%
**39
99%
ADI AR 2217
<<locked>>
81%
31749
52%
**13
95%
[ADI AR 2218]*
<<locked>>
87%
33257
55%
**05
90%
ADI AR 2225
<<locked>>
81%
29022
48%
**96
98%
Accurate 3100
<<locked>>
81%
43439
71%
**70
100%
[Accurate 8700]*
<<locked>>
93%
32634
54%
**46
90%
Accurate MAGPRO
<<locked>>
81%
42482
70%
**43
97%
Alliant Reloder-19
<<locked>>
81%
47514
78%
**75
100%
Alliant Reloder-22
<<locked>>
81%
43410
71%
**39
99%
Alliant Reloder-23
<<locked>>
81%
42105
69%
**80
100%
Alliant Reloder-25
<<locked>>
81%
36289
60%
**38
100%
Alliant Reloder-26
<<locked>>
81%
47413
78%
**34
100%
[Alliant Reloder-33]*
<<locked>>
83%
30574
50%
**42
90%
[Alliant Reloder-50]*
<<locked>>
88%
31604
52%
**78
90%
Bofors RP15
<<locked>>
81%
40248
66%
**83
99%
Bofors RP30
<<locked>>
81%
33779
55%
**85
97%
Bofors RP5
<<locked>>
81%
43410
71%
**39
99%
Hodgdon H1000
<<locked>>
81%
31749
52%
**13
95%
Hodgdon H4350
<<locked>>
81%
50865
84%
**79
100%
Hodgdon H4831
<<locked>>
81%
40176
66%
**47
98%
Hodgdon H4831 SC
<<locked>>
81%
44585
73%
**23
98%
Hodgdon Retumbo
<<locked>>
81%
29022
48%
**96
98%
IMR 4831
<<locked>>
81%
49153
81%
**49
100%
IMR 4955 Enduron
<<locked>>
81%
43830
72%
**77
98%
IMR 7828 SSC
<<locked>>
81%
43976
72%
**72
99%
[IMR 7977 Enduron]*
<<locked>>
82%
38363
63%
**52
90%
[IMR 8133 Enduron]*
<<locked>>
81%
26527
44%
**18
92%
[Lovex D100]*
<<locked>>
90%
42134
69%
**70
90%
Lovex S071
<<locked>>
81%
37463
61%
**72
100%
Norma 217
<<locked>>
81%
26571
44%
**41
95%
Norma MRP
<<locked>>
81%
45832
75%
**98
100%
Ramshot Grand
<<locked>>
81%
46470
76%
**21
100%
Ramshot Magnum
<<locked>>
81%
40799
67%
**00
100%
ReloadSwiss RS 76
<<locked>>
81%
34577
57%
**57
99%
[ReloadSwiss RS 80]*
<<locked>>
81%
31473
52%
**62
94%
Rottweil R 904
<<locked>>
81%
48530
80%
**59
99%
Rottweil R 905
<<locked>>
81%
47036
77%
**65
100%
[SNPE Vectan SP 13]*
<<locked>>
92%
32401
53%
**33
90%
[Shooters World 50 BMG]*
<<locked>>
90%
42134
69%
**70
90%
Somchem S361
<<locked>>
81%
49356
81%
**52
99%
Somchem S385
<<locked>>
81%
47485
78%
**46
100%
Vihtavuori N165
<<locked>>
81%
40176
66%
**24
99%
[Vihtavuori N170]*
<<locked>>
84%
33576
55%
**06
90%
Vihtavuori N555
<<locked>>
81%
46818
77%
**46
100%
Vihtavuori N560
<<locked>>
81%
43395
71%
**62
98%
Vihtavuori N565
<<locked>>
81%
37840
62%
**44
97%
[Vihtavuori N568]*
<<locked>>
81%
32837
54%
**78
94%
[Vihtavuori N570]*
<<locked>>
81%
31778
52%
**75
90%
Winchester StaBALL HD
<<locked>>
81%
40001
66%
**39
100%

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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