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Load data for .338 Lapua Mag. + .338 | 200gr | Hornady SST InterLock

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

.338 Lapua Mag. + .338 | 200gr | Hornady SST InterLock

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.338 | 200gr | Hornady SST InterLock
Manufacturer SKU:
33102
Bullet Weight:
200gr | 13.0g
Bullet Diameter:
0.338" | 8.59mm
Bullet Length:
1.320" | 33.5mm
Caliber:
.338 Lapua Mag. load data
Case Length (l3):
2.724" | 69.2mm
Cartridge Length (C.O.L.):
3.626" | 92.1mm
Seated Depth:
0.418" | 10.6mm
Shank Seated Depth:
0.288" | 7.3mm
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_B2749_C454
Last updated:
2025-08-05
Recommended Twist Rate:
1:14 - 1:12

Load data for 140 loads in caliber .338 Lapua Mag. with .338 | 200gr | Hornady SST InterLock bullet and 70 powders such as Alliant Reloder-23, Alliant Reloder-26, 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%
54665
90%
**97
100%
ADI AR 2209
<<locked>>
94%
54360
89%
**82
98%
ADI AR 2213
<<locked>>
97%
53969
89%
**05
97%
[ADI AR 2217]*
<<locked>>
97%
39349
65%
**90
92%
[ADI AR 2225]*
<<locked>>
97%
35128
58%
**44
94%
Accurate 2700
<<locked>>
84%
54520
89%
**58
99%
Accurate 3100
<<locked>>
97%
53780
88%
**23
100%
Accurate 4350
<<locked>>
88%
54346
89%
**59
100%
Accurate MAGPRO
<<locked>>
97%
52939
87%
**99
95%
Alliant Reloder-16
<<locked>>
90%
54273
89%
**99
100%
Alliant Reloder-17
<<locked>>
85%
54317
89%
**02
100%
Alliant Reloder-19
<<locked>>
94%
54447
89%
**82
98%
Alliant Reloder-22
<<locked>>
97%
53548
88%
**02
98%
Alliant Reloder-23 👍
<<locked>>
97%
50995
84%
**40
100%
Alliant Reloder-25
<<locked>>
97%
44005
72%
**58
99%
Alliant Reloder-26 👍
<<locked>>
95%
54433
89%
**77
100%
[Hodgdon H1000]*
<<locked>>
97%
39349
65%
**90
92%
Hodgdon H414
<<locked>>
85%
54215
89%
**72
99%
Hodgdon H4350
<<locked>>
91%
54317
89%
**13
99%
Hodgdon H4831
<<locked>>
97%
49922
82%
**74
95%
Hodgdon H4831 SC
<<locked>>
96%
54230
89%
**49
96%
Hodgdon Hybrid 100V
<<locked>>
92%
54244
89%
**13
100%
Hodgdon LVR
<<locked>>
87%
54723
90%
**56
100%
[Hodgdon Retumbo]*
<<locked>>
97%
35128
58%
**44
94%
Hodgdon Superperformance
<<locked>>
87%
54752
90%
**12
99%
Hodgdon VARGET
<<locked>>
83%
54404
89%
**97
100%
Hodgdon TrailBoss
<<locked>>
97%
35244
58%
**37
100%
IMR 4064
<<locked>>
84%
54331
89%
**90
100%
IMR 4166 Enduron
<<locked>>
84%
54230
89%
**81
99%
IMR 4350
<<locked>>
90%
54795
90%
**27
99%
IMR 4451 Enduron
<<locked>>
85%
54418
89%
**04
99%
IMR 4831
<<locked>>
93%
54244
89%
**40
100%
IMR 4955 Enduron
<<locked>>
96%
54549
90%
**27
97%
IMR 7828 SSC
<<locked>>
96%
54462
89%
**28
97%
Lovex S065
<<locked>>
87%
54563
90%
**07
100%
Lovex S070
<<locked>>
88%
54259
89%
**17
99%
Lovex S071
<<locked>>
97%
44918
74%
**69
98%
Norma 204
<<locked>>
89%
54694
90%
**56
98%
Norma MRP
<<locked>>
96%
54578
90%
**54
99%
Norma URP
<<locked>>
89%
54375
89%
**56
100%
Ramshot Hunter 👍
<<locked>>
90%
54404
89%
**72
100%
Ramshot Magnum
<<locked>>
97%
51895
85%
**63
99%
ReloadSwiss RS 14
<<locked>>
97%
35955
59%
**80
100%
ReloadSwiss RS 60
<<locked>>
86%
54723
90%
**31
100%
ReloadSwiss RS 62
<<locked>>
88%
54172
89%
**66
100%
ReloadSwiss RS 70
<<locked>>
89%
54563
90%
**25
100%
ReloadSwiss RS 76
<<locked>>
97%
42786
70%
**81
98%
Rottweil R 903
<<locked>>
84%
54462
89%
**97
100%
Rottweil R 904
<<locked>>
93%
54491
89%
**23
97%
Rottweil R 905
<<locked>>
94%
54346
89%
**76
98%
Rottweil R 907
<<locked>>
87%
54563
90%
**04
99%
SNPE Vectan SP 11
<<locked>>
83%
54607
90%
**43
100%
SNPE Vectan Tubal 5000
<<locked>>
84%
54781
90%
**82
100%
SNPE Vectan Tubal 7000
<<locked>>
88%
54592
90%
**61
99%
Shooters World Long Rifle
<<locked>>
87%
54563
90%
**07
100%
Somchem S355
<<locked>>
84%
54157
89%
**97
100%
Somchem S361
<<locked>>
92%
54520
89%
**94
96%
Somchem S365
<<locked>>
91%
54375
89%
**66
100%
Somchem S385
<<locked>>
94%
54665
90%
**46
99%
Vihtavuori N135
<<locked>>
85%
54679
90%
**22
100%
Vihtavuori N150
<<locked>>
89%
54578
90%
**58
100%
Vihtavuori N160
<<locked>>
87%
54505
89%
**23
100%
Vihtavuori N165
<<locked>>
97%
49835
82%
**48
98%
Vihtavuori N550
<<locked>>
87%
54737
90%
**56
100%
Vihtavuori N555 👍
<<locked>>
96%
54259
89%
**82
100%
Vihtavuori N560
<<locked>>
97%
53751
88%
**25
97%
Vihtavuori N565
<<locked>>
97%
45701
75%
**54
95%
Winchester 6.5 StaBALL
<<locked>>
88%
54389
89%
**87
100%
Winchester 760
<<locked>>
85%
54215
89%
**72
99%
Winchester StaBALL HD 👍
<<locked>>
97%
46311
76%
**99
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2208
<<locked>>
81%
50850
83%
**35
100%
[ADI AR 2209]*
<<locked>>
81%
35549
58%
**89
92%
[ADI AR 2213]*
<<locked>>
85%
35665
59%
**15
90%
[ADI AR 2217]*
<<locked>>
94%
35795
59%
**98
90%
[ADI AR 2225]*
<<locked>>
92%
29834
49%
**84
90%
Accurate 2700
<<locked>>
81%
49124
81%
**72
98%
[Accurate 3100]*
<<locked>>
81%
31140
51%
**64
94%
Accurate 4350
<<locked>>
81%
42235
69%
**43
99%
[Accurate MAGPRO]*
<<locked>>
89%
39595
65%
**30
90%
Alliant Reloder-16
<<locked>>
81%
40654
67%
**53
99%
Alliant Reloder-17
<<locked>>
81%
46731
77%
**71
100%
[Alliant Reloder-19]*
<<locked>>
81%
35433
58%
**95
93%
[Alliant Reloder-22]*
<<locked>>
81%
31227
51%
**10
90%
Alliant Reloder-23
<<locked>>
81%
30037
49%
**97
97%
[Alliant Reloder-25]*
<<locked>>
81%
26382
43%
**79
91%
Alliant Reloder-26
<<locked>>
81%
32271
53%
**08
96%
[Hodgdon H1000]*
<<locked>>
94%
35795
59%
**98
90%
Hodgdon H414
<<locked>>
81%
47892
79%
**58
98%
Hodgdon H4350
<<locked>>
81%
39131
64%
**28
95%
[Hodgdon H4831]*
<<locked>>
87%
36535
60%
**92
90%
[Hodgdon H4831 SC]*
<<locked>>
84%
36535
60%
**92
90%
Hodgdon Hybrid 100V
<<locked>>
81%
38334
63%
**41
100%
Hodgdon LVR
<<locked>>
81%
44846
74%
**92
99%
[Hodgdon Retumbo]*
<<locked>>
92%
29834
49%
**84
90%
Hodgdon Superperformance
<<locked>>
81%
43163
71%
**99
97%
Hodgdon VARGET
<<locked>>
81%
50618
83%
**38
100%
Hodgdon TrailBoss
<<locked>>
81%
27847
46%
**77
100%
IMR 4064
<<locked>>
81%
50038
82%
**15
100%
IMR 4166 Enduron
<<locked>>
81%
49066
81%
**92
98%
IMR 4350
<<locked>>
81%
41031
67%
**71
96%
IMR 4451 Enduron
<<locked>>
81%
47224
78%
**76
98%
IMR 4831
<<locked>>
81%
36709
60%
**02
98%
[IMR 4955 Enduron]*
<<locked>>
82%
35201
58%
**30
90%
[IMR 7828 SSC]*
<<locked>>
84%
35462
58%
**21
90%
Lovex S065
<<locked>>
81%
44643
73%
**30
99%
Lovex S070
<<locked>>
81%
42917
70%
**10
97%
[Lovex S071]*
<<locked>>
81%
26760
44%
**36
91%
Norma 204
<<locked>>
81%
40973
67%
**97
95%
[Norma MRP]*
<<locked>>
81%
32445
53%
**75
93%
Norma URP
<<locked>>
81%
41727
68%
**30
99%
Ramshot Hunter
<<locked>>
81%
40596
67%
**17
97%
[Ramshot Magnum]*
<<locked>>
82%
30284
50%
**74
90%
ReloadSwiss RS 14
<<locked>>
81%
28543
47%
**19
100%
ReloadSwiss RS 60
<<locked>>
81%
44933
74%
**67
100%
ReloadSwiss RS 62
<<locked>>
81%
42061
69%
**59
99%
ReloadSwiss RS 70
<<locked>>
81%
40509
67%
**59
98%
[ReloadSwiss RS 76]*
<<locked>>
87%
30313
50%
**20
90%
Rottweil R 903
<<locked>>
81%
49443
81%
**25
100%
[Rottweil R 904]*
<<locked>>
81%
36898
61%
**79
92%
[Rottweil R 905]*
<<locked>>
81%
34476
57%
**69
92%
Rottweil R 907
<<locked>>
81%
45759
75%
**53
97%
SNPE Vectan SP 11
<<locked>>
81%
50734
83%
**81
100%
SNPE Vectan Tubal 5000
<<locked>>
81%
50299
83%
**17
100%
SNPE Vectan Tubal 7000
<<locked>>
81%
43714
72%
**71
97%
Shooters World Long Rifle
<<locked>>
81%
44643
73%
**30
99%
Somchem S355
<<locked>>
81%
49458
81%
**25
100%
[Somchem S361]*
<<locked>>
81%
37536
62%
**69
91%
Somchem S365
<<locked>>
81%
38072
62%
**80
100%
[Somchem S385]*
<<locked>>
81%
35346
58%
**62
94%
Vihtavuori N135
<<locked>>
81%
48109
79%
**20
100%
Vihtavuori N150
<<locked>>
81%
42308
69%
**64
100%
Vihtavuori N160
<<locked>>
81%
45092
74%
**62
99%
[Vihtavuori N165]*
<<locked>>
81%
29602
49%
**05
90%
Vihtavuori N550
<<locked>>
81%
45484
75%
**02
99%
Vihtavuori N555
<<locked>>
81%
33417
55%
**69
97%
[Vihtavuori N560]*
<<locked>>
85%
36056
59%
**57
90%
[Vihtavuori N565]*
<<locked>>
89%
34896
57%
**12
90%
Winchester 6.5 StaBALL
<<locked>>
81%
42337
69%
**94
100%
Winchester 760
<<locked>>
81%
47892
79%
**58
98%
Winchester StaBALL HD
<<locked>>
81%
24250
40%
**64
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.

<<locked>>... you need to buy an access license to unlock the data

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