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Load data for .338 Lapua Mag. + .338 | 285gr | Hornady BTHP

Recommended Powder(s):

.338 Lapua Mag. + .338 | 285gr | Hornady BTHP

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.338 | 285gr | Hornady BTHP
Manufacturer SKU:
3339
Bullet Weight:
285gr | 18.5g
Bullet Diameter:
0.338" | 8.59mm
Bullet Length:
<<locked>>
Caliber:
.338 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:
114.0 Grains of Water | 7.40 cm³
Primer Size:
Large Rifle Magnum (LRM)
Max. allowed Pressure:
60916 psi | 4200 bar
LID:
LID_B2761_C454
Last updated:
2026-01-31
Recommended Twist Rate:
1:11 - 1:9

Load data for 112 loads in caliber .338 Lapua Mag. with .338 | 285gr | Hornady BTHP bullet and 56 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".

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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>>
88%
54795
90%
**33
100%
ADI AR 2213 👍
<<locked>>
91%
54360
89%
**69
100%
ADI AR 2217
<<locked>>
97%
48124
79%
**77
99%
[ADI AR 2218]*
<<locked>>
97%
41089
67%
**15
93%
ADI AR 2225
<<locked>>
97%
43236
71%
**48
100%
Accurate 3100
<<locked>>
91%
54273
89%
**77
100%
Accurate MAGPRO
<<locked>>
91%
54201
89%
**82
99%
Alliant Reloder-16
<<locked>>
84%
54302
89%
**13
100%
Alliant Reloder-19
<<locked>>
88%
54331
89%
**26
100%
Alliant Reloder-22
<<locked>>
91%
54781
90%
**69
100%
Alliant Reloder-23
<<locked>>
92%
54462
89%
**13
100%
Alliant Reloder-25
<<locked>>
97%
54288
89%
**82
100%
Alliant Reloder-26
<<locked>>
88%
54027
89%
**85
100%
Alliant Reloder-33
<<locked>>
97%
44266
73%
**84
95%
Baschieri & Pellagri 109
<<locked>>
93%
54331
89%
**20
98%
Bofors RP15
<<locked>>
94%
54549
90%
**62
100%
Bofors RP30
<<locked>>
97%
50488
83%
**39
100%
Bofors RP5
<<locked>>
91%
54781
90%
**69
100%
Hodgdon H1000
<<locked>>
97%
48124
79%
**77
99%
Hodgdon H4350
<<locked>>
86%
54418
89%
**74
100%
Hodgdon H4831
<<locked>>
94%
54346
89%
**16
99%
Hodgdon H4831 SC
<<locked>>
90%
54346
89%
**16
99%
Hodgdon Hybrid 100V
<<locked>>
86%
54244
89%
**41
100%
Hodgdon Retumbo
<<locked>>
97%
43236
71%
**48
100%
IMR 4350
<<locked>>
84%
54462
89%
**74
100%
IMR 4831
<<locked>>
88%
54375
89%
**70
100%
IMR 4955 Enduron
<<locked>>
91%
54549
90%
**87
99%
IMR 7828 SSC 👍
<<locked>>
90%
54578
90%
**79
100%
[IMR 7977 Enduron]*
<<locked>>
96%
54418
89%
**48
94%
IMR 8133 Enduron
<<locked>>
97%
39015
64%
**65
97%
Lovex S070
<<locked>>
83%
54404
89%
**64
100%
Lovex S071
<<locked>>
97%
54621
90%
**80
100%
Norma 204
<<locked>>
84%
54578
90%
**16
100%
Norma 217
<<locked>>
97%
39436
65%
**92
99%
Norma MRP
<<locked>>
89%
54549
90%
**85
100%
Norma URP
<<locked>>
84%
54563
90%
**90
100%
Ramshot Grand
<<locked>>
88%
54244
89%
**89
100%
Ramshot Hunter
<<locked>>
84%
54230
89%
**07
100%
Ramshot Magnum
<<locked>>
92%
54723
90%
**59
100%
ReloadSwiss RS 70
<<locked>>
84%
54723
90%
**56
100%
ReloadSwiss RS 76 👍
<<locked>>
97%
53693
88%
**44
100%
ReloadSwiss RS 80
<<locked>>
97%
48646
80%
**56
99%
Rottweil R 904
<<locked>>
88%
54578
90%
**93
100%
Rottweil R 905
<<locked>>
89%
54462
89%
**23
100%
Somchem S361
<<locked>>
87%
54462
89%
**70
99%
Somchem S365
<<locked>>
85%
54621
90%
**80
100%
Somchem S385
<<locked>>
89%
54766
90%
**00
100%
Vihtavuori N150
<<locked>>
84%
54549
90%
**92
100%
Vihtavuori N165
<<locked>>
94%
54650
90%
**90
100%
[Vihtavuori N170]*
<<locked>>
97%
45136
74%
**69
93%
Vihtavuori N555
<<locked>>
89%
54636
90%
**10
100%
Vihtavuori N560 👍
<<locked>>
91%
54070
89%
**82
99%
Vihtavuori N565 👍
<<locked>>
96%
54534
90%
**79
100%
Vihtavuori N568
<<locked>>
97%
49908
82%
**52
98%
Vihtavuori N570
<<locked>>
97%
48037
79%
**52
96%
Winchester StaBALL HD
<<locked>>
93%
54679
90%
**15
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2209
<<locked>>
81%
42989
71%
**52
99%
ADI AR 2213
<<locked>>
81%
38348
63%
**93
97%
[ADI AR 2217]*
<<locked>>
81%
28631
47%
**67
92%
[ADI AR 2218]*
<<locked>>
93%
36303
60%
**06
90%
[ADI AR 2225]*
<<locked>>
81%
25947
43%
**37
94%
Accurate 3100
<<locked>>
81%
38841
64%
**41
100%
[Accurate MAGPRO]*
<<locked>>
81%
37579
62%
**93
94%
Alliant Reloder-16
<<locked>>
81%
49574
81%
**48
100%
Alliant Reloder-19
<<locked>>
81%
42989
71%
**46
99%
Alliant Reloder-22
<<locked>>
81%
38754
64%
**06
98%
Alliant Reloder-23
<<locked>>
81%
37420
61%
**64
100%
Alliant Reloder-25
<<locked>>
81%
32300
53%
**01
99%
Alliant Reloder-26
<<locked>>
81%
41510
68%
**02
100%
[Alliant Reloder-33]*
<<locked>>
89%
33243
55%
**44
90%
[Baschieri & Pellagri 109]*
<<locked>>
81%
38087
63%
**31
93%
Bofors RP15
<<locked>>
81%
36114
59%
**47
97%
[Bofors RP30]*
<<locked>>
81%
29660
49%
**29
94%
Bofors RP5
<<locked>>
81%
38754
64%
**06
98%
[Hodgdon H1000]*
<<locked>>
81%
28631
47%
**67
92%
Hodgdon H4350
<<locked>>
81%
46673
77%
**56
100%
Hodgdon H4831
<<locked>>
81%
36274
60%
**08
95%
Hodgdon H4831 SC
<<locked>>
81%
40321
66%
**87
97%
Hodgdon Hybrid 100V
<<locked>>
81%
46775
77%
**43
100%
[Hodgdon Retumbo]*
<<locked>>
81%
25947
43%
**37
94%
IMR 4350
<<locked>>
81%
48747
80%
**88
100%
IMR 4831
<<locked>>
81%
44454
73%
**26
100%
IMR 4955 Enduron
<<locked>>
81%
40103
66%
**54
97%
IMR 7828 SSC
<<locked>>
81%
39378
65%
**29
97%
[IMR 7977 Enduron]*
<<locked>>
87%
41626
68%
**44
90%
[IMR 8133 Enduron]*
<<locked>>
84%
25396
42%
**24
90%
Lovex S070
<<locked>>
81%
50879
84%
**15
100%
Lovex S071
<<locked>>
81%
33518
55%
**36
99%
Norma 204
<<locked>>
81%
49269
81%
**34
100%
[Norma 217]*
<<locked>>
81%
23438
38%
**82
91%
Norma MRP
<<locked>>
81%
40683
67%
**69
99%
Norma URP
<<locked>>
81%
50488
83%
**31
100%
Ramshot Grand
<<locked>>
81%
41060
67%
**75
98%
Ramshot Hunter
<<locked>>
81%
49255
81%
**41
100%
Ramshot Magnum
<<locked>>
81%
35766
59%
**47
98%
ReloadSwiss RS 70
<<locked>>
81%
49806
82%
**87
100%
ReloadSwiss RS 76
<<locked>>
81%
30574
50%
**01
97%
[ReloadSwiss RS 80]*
<<locked>>
82%
28137
46%
**16
90%
Rottweil R 904
<<locked>>
81%
44063
72%
**26
98%
Rottweil R 905
<<locked>>
81%
42351
70%
**36
99%
Somchem S361
<<locked>>
81%
44904
74%
**26
98%
Somchem S365
<<locked>>
81%
47485
78%
**92
100%
Somchem S385
<<locked>>
81%
43004
71%
**20
99%
Vihtavuori N150
<<locked>>
81%
50343
83%
**36
100%
Vihtavuori N165
<<locked>>
81%
36332
60%
**95
98%
[Vihtavuori N170]*
<<locked>>
90%
36521
60%
**08
90%
Vihtavuori N555
<<locked>>
81%
41916
69%
**29
100%
Vihtavuori N560
<<locked>>
81%
38754
64%
**20
96%
Vihtavuori N565
<<locked>>
81%
33344
55%
**98
95%
[Vihtavuori N568]*
<<locked>>
81%
29080
48%
**26
90%
[Vihtavuori N570]*
<<locked>>
87%
33953
56%
**67
90%
Winchester StaBALL HD
<<locked>>
81%
33982
56%
**06
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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