top of page

Load data for .338 Lapua Mag. Ackley Improved + .338 | 138gr | Sax KJG-SR

Recommended Powder(s): Accurate 4350, Alliant Reloder-16, Norma URP, ReloadSwiss RS 62, Vihtavuori N550

.338 Lapua Mag. Ackley Improved + .338 | 138gr | Sax KJG-SR

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.338 | 138gr | Sax KJG-SR
Manufacturer SKU:
G0016.9
Bullet Weight:
138gr | 8.9g
Bullet Diameter:
0.338" | 8.59mm
Bullet Length:
<<locked>>
Caliber:
.338 Lapua Mag. Ackley Improved load data
Case Length (l3):
2.724" | 69.2mm
Cartridge Length (C.O.L.):
<<locked>>
Seated Depth:
<<locked>>
Shank Seated Depth:
<<locked>>
Case Capacity:
124.9 Grains of Water | 8.11 cm³
Primer Size:
Large Rifle Magnum (LRM)
Max. allowed Pressure:
69618 psi | 4800 bar
LID:
LID_B12366_C452
Last updated:
2026-05-21

Load data for 216 loads in caliber .338 Lapua Mag. Ackley Improved with .338 | 138gr | Sax KJG-SR bullet and 108 powders such as Accurate 4350, Alliant Reloder-16, Norma URP, ReloadSwiss RS 62, Vihtavuori N550. 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

  • 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.

    .

    Loading_icon.gif

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 APS 450
<<locked>>
84%
62424
90%
**64
101%
ADI AR 2206H
<<locked>>
85%
62482
90%
**70
100%
ADI AR 2208
<<locked>>
90%
62453
90%
**40
100%
ADI AR 2209
<<locked>>
97%
55158
79%
**74
96%
[ADI AR 2213]*
<<locked>>
97%
49632
71%
**73
92%
ADI Benchmark 8208
<<locked>>
84%
62584
90%
**30
100%
Accurate 2495
<<locked>>
86%
62482
90%
**68
100%
Accurate 2700
<<locked>>
87%
62250
89%
**91
98%
Accurate 3100
<<locked>>
97%
48892
70%
**07
97%
Accurate 4064
<<locked>>
88%
62555
90%
**14
100%
Accurate 4350 👍
<<locked>>
95%
62482
90%
**96
100%
Alliant Power Pro 2000-MR
<<locked>>
86%
62497
90%
**84
100%
Alliant Reloder- TS 15.5
<<locked>>
89%
62105
89%
**47
100%
Alliant Reloder-15
<<locked>>
87%
62062
89%
**76
100%
Alliant Reloder-16 👍
<<locked>>
97%
62439
90%
**58
100%
Alliant Reloder-17
<<locked>>
92%
62395
90%
**48
100%
Alliant Reloder-19
<<locked>>
97%
54752
79%
**74
96%
[Alliant Reloder-22]*
<<locked>>
97%
48399
70%
**79
94%
Alliant Reloder-23
<<locked>>
97%
45556
65%
**27
99%
Alliant Reloder-25
<<locked>>
97%
39987
57%
**82
95%
Alliant Reloder-26
<<locked>>
97%
52924
76%
**40
99%
Baschieri & Pellagri 107
<<locked>>
84%
62468
90%
**70
100%
[Bofors RP15]*
<<locked>>
97%
44599
64%
**78
92%
Bofors RP3
<<locked>>
89%
62569
90%
**63
100%
[Bofors RP5]*
<<locked>>
97%
48399
70%
**79
94%
Bofors RP7
<<locked>>
93%
62163
89%
**43
98%
Hodgdon BL-C2
<<locked>>
83%
62627
90%
**53
100%
Hodgdon Benchmark
<<locked>>
83%
62613
90%
**94
100%
Hodgdon H380
<<locked>>
88%
62192
89%
**66
100%
Hodgdon H414
<<locked>>
94%
62584
90%
**19
99%
Hodgdon H4350
<<locked>>
92%
62424
90%
**66
98%
[Hodgdon H4831]*
<<locked>>
97%
52997
76%
**99
93%
[Hodgdon H4831 SC]*
<<locked>>
97%
52083
75%
**73
92%
Hodgdon H4895
<<locked>>
85%
62584
90%
**79
100%
Hodgdon Hybrid 100V
<<locked>>
97%
58479
84%
**91
100%
Hodgdon Superperformance
<<locked>>
93%
62004
89%
**19
98%
Hodgdon VARGET
<<locked>>
86%
62627
90%
**60
100%
Hodgdon LEVERevolution
<<locked>>
86%
62656
90%
**96
100%
Hodgdon TrailBoss
<<locked>>
96%
34374
49%
**41
100%
IMR 3031
<<locked>>
84%
62468
90%
**40
100%
IMR 4064
<<locked>>
88%
62279
89%
**40
100%
IMR 4166 Enduron
<<locked>>
87%
62308
89%
**30
99%
IMR 4350
<<locked>>
97%
62395
90%
**53
98%
IMR 4451 Enduron
<<locked>>
92%
62192
89%
**43
99%
IMR 4831
<<locked>>
97%
62236
89%
**70
100%
IMR 4895
<<locked>>
87%
62555
90%
**89
100%
[IMR 4955 Enduron]*
<<locked>>
97%
54723
79%
**96
94%
IMR 8208 XBR
<<locked>>
84%
62584
90%
**30
100%
Lovex D073.6
<<locked>>
84%
62134
89%
**10
100%
Lovex S060
<<locked>>
85%
62134
89%
**94
100%
Lovex S062
<<locked>>
88%
62395
90%
**27
100%
Lovex S065
<<locked>>
94%
62308
89%
**27
99%
Lovex S070
<<locked>>
95%
62352
90%
**43
99%
[Lovex S071]*
<<locked>>
97%
40118
58%
**07
94%
Norma 201
<<locked>>
86%
62627
90%
**33
100%
Norma 202
<<locked>>
85%
62627
90%
**07
100%
Norma 203B
<<locked>>
88%
62439
90%
**73
100%
Norma 204
<<locked>>
96%
62410
90%
**83
97%
Norma MRP
<<locked>>
97%
51677
74%
**68
97%
Norma URP 👍
<<locked>>
96%
62076
89%
**02
100%
Ramshot Big Game
<<locked>>
87%
62294
89%
**66
100%
Ramshot Hunter
<<locked>>
96%
62091
89%
**96
99%
[Ramshot Magnum]*
<<locked>>
97%
42250
61%
**92
93%
Ramshot TAC
<<locked>>
83%
62656
90%
**37
99%
Ramshot Wild Boar
<<locked>>
83%
62279
89%
**53
100%
ReloadSwiss RS 14
<<locked>>
97%
35201
51%
**93
100%
ReloadSwiss RS 50
<<locked>>
89%
62366
90%
**33
99%
ReloadSwiss RS 52
<<locked>>
85%
62540
90%
**35
100%
ReloadSwiss RS 60
<<locked>>
90%
62076
89%
**58
100%
ReloadSwiss RS 62 👍
<<locked>>
95%
62511
90%
**02
100%
ReloadSwiss RS 70
<<locked>>
96%
62381
90%
**58
100%
Rottweil R 901
<<locked>>
83%
62192
89%
**94
100%
Rottweil R 902
<<locked>>
87%
62395
90%
**14
100%
Rottweil R 903
<<locked>>
91%
62004
89%
**50
100%
Rottweil R 904
<<locked>>
97%
56724
81%
**51
95%
Rottweil R 905
<<locked>>
97%
53853
77%
**51
96%
Rottweil R 907
<<locked>>
93%
62163
89%
**43
98%
SNPE Vectan SP 11
<<locked>>
90%
62279
89%
**73
100%
SNPE Vectan SP 7
<<locked>>
84%
62221
89%
**27
100%
SNPE Vectan SP 9
<<locked>>
86%
62598
90%
**50
100%
SNPE Vectan Tubal 3000
<<locked>>
85%
62192
89%
**42
100%
SNPE Vectan Tubal 5000
<<locked>>
91%
62395
90%
**09
100%
SNPE Vectan Tubal 7000
<<locked>>
94%
62656
90%
**78
99%
Shooters World Long Rifle
<<locked>>
94%
62308
89%
**27
99%
Shooters World Match Rifle
<<locked>>
84%
62134
89%
**10
100%
Shooters World Precision
<<locked>>
88%
62395
90%
**27
100%
Somchem S335
<<locked>>
85%
62540
90%
**35
100%
Somchem S341
<<locked>>
84%
62395
90%
**30
100%
Somchem S355
<<locked>>
91%
62265
89%
**47
100%
Somchem S361
<<locked>>
97%
59393
85%
**28
95%
Somchem S365
<<locked>>
97%
59538
86%
**63
100%
Somchem S385
<<locked>>
97%
54665
79%
**25
97%
Vihtavuori N133
<<locked>>
85%
62526
90%
**22
100%
Vihtavuori N135
<<locked>>
88%
62352
90%
**61
100%
Vihtavuori N140
<<locked>>
87%
62091
89%
**58
100%
Vihtavuori N150
<<locked>>
92%
62366
90%
**94
100%
Vihtavuori N160
<<locked>>
95%
62482
90%
**60
100%
[Vihtavuori N165]*
<<locked>>
97%
47123
68%
**58
94%
Vihtavuori N530
<<locked>>
83%
62540
90%
**24
100%
Vihtavuori N540
<<locked>>
88%
62598
90%
**78
100%
Vihtavuori N550 👍
<<locked>>
95%
62294
89%
**73
100%
Vihtavuori N555
<<locked>>
97%
51184
74%
**19
99%
[Vihtavuori N560]*
<<locked>>
97%
51793
74%
**61
93%
Winchester 6.5 StaBALL
<<locked>>
94%
62352
90%
**07
100%
Winchester 760
<<locked>>
94%
62584
90%
**19
99%
Winchester StaBALL HD
<<locked>>
97%
39871
57%
**50
100%
Winchester StaBALL Match
<<locked>>
85%
62540
90%
**47
100%
Winchester Supreme 780
<<locked>>
97%
51227
74%
**43
95%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI APS 450
<<locked>>
81%
59364
85%
**12
100%
ADI AR 2206H
<<locked>>
81%
55303
79%
**55
100%
ADI AR 2208
<<locked>>
81%
46934
67%
**68
99%
[ADI AR 2209]*
<<locked>>
87%
39871
57%
**27
90%
[ADI AR 2213]*
<<locked>>
94%
44788
64%
**55
90%
ADI Benchmark 8208
<<locked>>
81%
57421
82%
**58
100%
Accurate 2495
<<locked>>
81%
52301
75%
**04
100%
Accurate 2700
<<locked>>
81%
50517
73%
**84
96%
[Accurate 3100]*
<<locked>>
85%
31836
46%
**81
90%
Accurate 4064
<<locked>>
81%
49487
71%
**97
100%
Accurate 4350
<<locked>>
81%
37695
54%
**97
95%
Alliant Power Pro 2000-MR
<<locked>>
81%
52054
75%
**10
99%
Alliant Reloder- TS 15.5
<<locked>>
81%
47398
68%
**97
100%
Alliant Reloder-15
<<locked>>
81%
50604
73%
**69
99%
Alliant Reloder-16
<<locked>>
81%
36782
53%
**00
95%
Alliant Reloder-17
<<locked>>
81%
41930
60%
**58
99%
[Alliant Reloder-19]*
<<locked>>
87%
39088
56%
**14
90%
[Alliant Reloder-22]*
<<locked>>
91%
39117
56%
**50
90%
[Alliant Reloder-23]*
<<locked>>
81%
26905
39%
**69
91%
[Alliant Reloder-25]*
<<locked>>
90%
32140
46%
**56
90%
[Alliant Reloder-26]*
<<locked>>
83%
30560
44%
**40
90%
Baschieri & Pellagri 107
<<locked>>
81%
55666
80%
**51
99%
[Bofors RP15]*
<<locked>>
93%
39436
57%
**53
90%
Bofors RP3
<<locked>>
81%
47906
69%
**97
100%
[Bofors RP5]*
<<locked>>
91%
39117
56%
**50
90%
[Bofors RP7]*
<<locked>>
81%
42032
60%
**36
93%
Hodgdon BL-C2
<<locked>>
81%
57827
83%
**81
100%
Hodgdon Benchmark
<<locked>>
81%
58639
84%
**38
100%
Hodgdon H380
<<locked>>
81%
48225
69%
**04
98%
[Hodgdon H414]*
<<locked>>
81%
39871
57%
**50
93%
[Hodgdon H4350]*
<<locked>>
81%
42902
62%
**86
92%
[Hodgdon H4831]*
<<locked>>
92%
45223
65%
**35
90%
[Hodgdon H4831 SC]*
<<locked>>
93%
45223
65%
**35
90%
Hodgdon H4895
<<locked>>
81%
55898
80%
**55
100%
Hodgdon Hybrid 100V
<<locked>>
81%
34185
49%
**86
96%
[Hodgdon Superperformance]*
<<locked>>
81%
39233
56%
**40
92%
Hodgdon VARGET
<<locked>>
81%
53374
77%
**02
100%
Hodgdon LEVERevolution
<<locked>>
81%
52895
76%
**32
100%
Hodgdon TrailBoss
<<locked>>
81%
27369
39%
**60
100%
IMR 3031
<<locked>>
81%
56333
81%
**51
100%
IMR 4064
<<locked>>
81%
49385
71%
**14
99%
IMR 4166 Enduron
<<locked>>
81%
51880
75%
**33
97%
[IMR 4350]*
<<locked>>
81%
37478
54%
**25
91%
[IMR 4451 Enduron]*
<<locked>>
81%
43439
62%
**73
94%
IMR 4831
<<locked>>
81%
36129
52%
**38
95%
IMR 4895
<<locked>>
81%
51851
74%
**12
100%
[IMR 4955 Enduron]*
<<locked>>
90%
44237
64%
**76
90%
IMR 8208 XBR
<<locked>>
81%
57421
82%
**58
100%
Lovex D073.6
<<locked>>
81%
55680
80%
**25
100%
Lovex S060
<<locked>>
81%
53983
78%
**66
100%
Lovex S062
<<locked>>
81%
49429
71%
**14
100%
Lovex S065
<<locked>>
81%
40785
59%
**00
95%
[Lovex S070]*
<<locked>>
81%
39015
56%
**74
93%
[Lovex S071]*
<<locked>>
90%
31836
46%
**81
90%
Norma 201
<<locked>>
81%
53954
77%
**86
100%
Norma 202
<<locked>>
81%
54694
79%
**89
100%
Norma 203B
<<locked>>
81%
49980
72%
**53
99%
[Norma 204]*
<<locked>>
83%
39537
57%
**14
90%
[Norma MRP]*
<<locked>>
87%
35781
51%
**84
90%
Norma URP
<<locked>>
81%
37608
54%
**94
95%
Ramshot Big Game
<<locked>>
81%
50618
73%
**76
99%
[Ramshot Hunter]*
<<locked>>
81%
36608
53%
**64
92%
[Ramshot Magnum]*
<<locked>>
94%
37666
54%
**74
90%
Ramshot TAC
<<locked>>
81%
57914
83%
**68
99%
Ramshot Wild Boar
<<locked>>
81%
58117
83%
**91
100%
ReloadSwiss RS 14
<<locked>>
81%
27804
40%
**10
100%
ReloadSwiss RS 50
<<locked>>
81%
48385
70%
**84
97%
ReloadSwiss RS 52
<<locked>>
81%
54955
79%
**04
100%
ReloadSwiss RS 60
<<locked>>
81%
44686
64%
**33
100%
ReloadSwiss RS 62
<<locked>>
81%
37594
54%
**97
95%
[ReloadSwiss RS 70]*
<<locked>>
81%
36753
53%
**07
94%
Rottweil R 901
<<locked>>
81%
57812
83%
**38
100%
Rottweil R 902
<<locked>>
81%
51372
74%
**33
100%
Rottweil R 903
<<locked>>
81%
44802
64%
**28
99%
[Rottweil R 904]*
<<locked>>
88%
42206
61%
**46
90%
[Rottweil R 905]*
<<locked>>
87%
38189
55%
**00
90%
[Rottweil R 907]*
<<locked>>
81%
42032
60%
**36
93%
SNPE Vectan SP 11
<<locked>>
81%
46195
66%
**84
99%
SNPE Vectan SP 7
<<locked>>
81%
57087
82%
**42
99%
SNPE Vectan SP 9
<<locked>>
81%
53925
77%
**15
100%
SNPE Vectan Tubal 3000
<<locked>>
81%
54824
79%
**30
100%
SNPE Vectan Tubal 5000
<<locked>>
81%
46224
66%
**53
100%
[SNPE Vectan Tubal 7000]*
<<locked>>
81%
40219
58%
**41
93%
Shooters World Long Rifle
<<locked>>
81%
40785
59%
**00
95%
Shooters World Match Rifle
<<locked>>
81%
55680
80%
**25
100%
Shooters World Precision
<<locked>>
81%
49429
71%
**14
100%
Somchem S335
<<locked>>
81%
54404
78%
**20
100%
Somchem S341
<<locked>>
81%
56695
81%
**38
100%
Somchem S355
<<locked>>
81%
45092
65%
**38
99%
[Somchem S361]*
<<locked>>
89%
44802
64%
**56
90%
Somchem S365
<<locked>>
81%
33852
49%
**35
97%
[Somchem S385]*
<<locked>>
85%
36100
52%
**05
90%
Vihtavuori N133
<<locked>>
81%
55245
79%
**10
100%
Vihtavuori N135
<<locked>>
81%
49037
70%
**58
100%
Vihtavuori N140
<<locked>>
81%
51880
75%
**10
100%
Vihtavuori N150
<<locked>>
81%
43236
62%
**46
99%
Vihtavuori N160
<<locked>>
81%
39030
56%
**04
96%
[Vihtavuori N165]*
<<locked>>
90%
36927
53%
**12
90%
Vihtavuori N530
<<locked>>
81%
58131
84%
**55
100%
Vihtavuori N540
<<locked>>
81%
50198
72%
**91
100%
Vihtavuori N550
<<locked>>
81%
38580
55%
**84
95%
[Vihtavuori N555]*
<<locked>>
81%
29356
42%
**67
92%
[Vihtavuori N560]*
<<locked>>
93%
44817
64%
**01
90%
Winchester 6.5 StaBALL
<<locked>>
81%
38653
56%
**54
98%
[Winchester 760]*
<<locked>>
81%
39871
57%
**50
93%
[Winchester StaBALL HD]*
<<locked>>
84%
26527
38%
**15
90%
Winchester StaBALL Match
<<locked>>
81%
54331
78%
**12
100%
[Winchester Supreme 780]*
<<locked>>
89%
38827
56%
**68
90%

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

bottom of page