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Load data for .338 Lapua Mag. Ackley Improved + .338 | 172gr | Sax KDG-S

Recommended Powder(s): Alliant Reloder-26, Norma 204, Ramshot Hunter, Vihtavuori N555, Winchester StaBALL HD

.338 Lapua Mag. Ackley Improved + .338 | 172gr | Sax KDG-S

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.338 | 172gr | Sax KDG-S
Manufacturer SKU:
G0016.31
Bullet Weight:
172gr | 11.1g
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_B12184_C452
Last updated:
2026-03-26
Recommended Twist Rate:
1:15 - 1:12

Load data for 176 loads in caliber .338 Lapua Mag. Ackley Improved with .338 | 172gr | Sax KDG-S bullet and 88 powders such as Alliant Reloder-26, Norma 204, 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 APS 450
<<locked>>
84%
62511
90%
**12
101%
ADI AR 2208
<<locked>>
86%
62555
90%
**61
100%
ADI AR 2209
<<locked>>
96%
62555
90%
**43
99%
ADI AR 2213
<<locked>>
97%
59132
85%
**23
98%
[ADI AR 2217]*
<<locked>>
97%
42888
62%
**72
93%
ADI AR 2225
<<locked>>
97%
38319
55%
**20
95%
Accurate 2700
<<locked>>
86%
62294
89%
**15
99%
Accurate 3100
<<locked>>
97%
58552
84%
**22
100%
Accurate 4064
<<locked>>
83%
62134
89%
**12
100%
Accurate 4350
<<locked>>
90%
62134
89%
**07
100%
Accurate MAGPRO
<<locked>>
97%
58523
84%
**04
96%
Alliant Reloder- TS 15.5
<<locked>>
85%
62250
89%
**55
100%
Alliant Reloder-16
<<locked>>
92%
62555
90%
**56
100%
Alliant Reloder-17
<<locked>>
87%
62120
89%
**43
100%
Alliant Reloder-19
<<locked>>
96%
62076
89%
**40
99%
Alliant Reloder-22
<<locked>>
97%
58755
84%
**07
99%
Alliant Reloder-23
<<locked>>
97%
55869
80%
**38
100%
Alliant Reloder-25
<<locked>>
97%
48298
69%
**53
100%
Alliant Reloder-26 👍
<<locked>>
96%
62642
90%
**12
100%
[Baschieri & Pellagri 109]*
<<locked>>
97%
57029
82%
**02
94%
Bofors RP15
<<locked>>
97%
53621
77%
**19
98%
Bofors RP3
<<locked>>
84%
62395
90%
**68
100%
Bofors RP30
<<locked>>
97%
44353
64%
**61
95%
Bofors RP5
<<locked>>
97%
58755
84%
**07
99%
Bofors RP7
<<locked>>
89%
62555
90%
**78
100%
[Hodgdon H1000]*
<<locked>>
97%
42888
62%
**72
93%
Hodgdon H380
<<locked>>
84%
62366
90%
**81
100%
Hodgdon H414
<<locked>>
86%
62163
89%
**33
100%
Hodgdon H4350
<<locked>>
94%
62381
90%
**81
100%
Hodgdon H4831
<<locked>>
97%
53954
78%
**73
96%
Hodgdon H4831 SC
<<locked>>
97%
61801
89%
**97
98%
Hodgdon Hybrid 100V
<<locked>>
94%
62482
90%
**64
100%
Hodgdon LVR
<<locked>>
89%
62279
89%
**14
100%
Hodgdon Retumbo
<<locked>>
97%
38319
55%
**20
95%
Hodgdon Superperformance
<<locked>>
88%
62134
89%
**50
100%
Hodgdon VARGET
<<locked>>
86%
62555
90%
**61
100%
Hodgdon TrailBoss
<<locked>>
97%
35389
51%
**47
100%
IMR 4064
<<locked>>
86%
62584
90%
**58
100%
IMR 4166 Enduron
<<locked>>
87%
62323
90%
**58
100%
IMR 4350
<<locked>>
92%
62584
90%
**78
100%
IMR 4451 Enduron
<<locked>>
88%
62439
90%
**74
100%
IMR 4831
<<locked>>
95%
62294
89%
**84
100%
IMR 4955 Enduron
<<locked>>
97%
59205
85%
**28
97%
IMR 7828 SSC
<<locked>>
97%
60597
87%
**63
98%
Lovex S062
<<locked>>
84%
62279
89%
**38
100%
Lovex S065
<<locked>>
90%
62337
90%
**55
100%
Lovex S070
<<locked>>
91%
62569
90%
**78
100%
Lovex S071
<<locked>>
97%
49211
71%
**61
99%
Norma 203B
<<locked>>
83%
62511
90%
**81
100%
Norma 204 👍
<<locked>>
91%
62076
89%
**07
99%
[Norma 217]*
<<locked>>
97%
34069
49%
**18
92%
Norma MRP
<<locked>>
97%
62163
89%
**86
100%
Norma URP
<<locked>>
91%
62453
90%
**14
100%
Ramshot Grand
<<locked>>
95%
62250
89%
**92
99%
Ramshot Hunter 👍
<<locked>>
91%
62265
89%
**30
100%
Ramshot Magnum
<<locked>>
97%
57957
83%
**78
99%
ReloadSwiss RS 14
<<locked>>
97%
36042
52%
**93
100%
ReloadSwiss RS 50
<<locked>>
84%
62047
89%
**61
100%
ReloadSwiss RS 60
<<locked>>
85%
62584
90%
**46
100%
ReloadSwiss RS 62
<<locked>>
90%
62497
90%
**20
100%
ReloadSwiss RS 70
<<locked>>
91%
62598
90%
**79
100%
ReloadSwiss RS 76
<<locked>>
97%
47732
69%
**82
98%
Rottweil R 903
<<locked>>
86%
62047
89%
**45
100%
Rottweil R 904
<<locked>>
95%
62236
89%
**81
98%
Rottweil R 905
<<locked>>
96%
62598
90%
**33
99%
Rottweil R 907
<<locked>>
89%
62555
90%
**78
100%
SNPE Vectan SP 11
<<locked>>
85%
62410
90%
**97
100%
SNPE Vectan Tubal 5000
<<locked>>
86%
62265
89%
**23
100%
SNPE Vectan Tubal 7000
<<locked>>
90%
62192
89%
**05
100%
Shooters World Long Rifle
<<locked>>
90%
62337
90%
**55
100%
Shooters World Precision
<<locked>>
84%
62279
89%
**38
100%
Somchem S355
<<locked>>
86%
62613
90%
**55
100%
Somchem S361
<<locked>>
94%
62569
90%
**51
98%
Somchem S365
<<locked>>
93%
62308
90%
**04
100%
Somchem S385
<<locked>>
96%
62482
90%
**87
100%
Vihtavuori N133
<<locked>>
83%
62149
89%
**17
100%
Vihtavuori N135
<<locked>>
88%
62076
89%
**59
100%
Vihtavuori N150
<<locked>>
91%
62105
89%
**09
100%
Vihtavuori N160
<<locked>>
89%
62656
90%
**71
100%
Vihtavuori N165
<<locked>>
97%
54056
78%
**43
98%
Vihtavuori N550
<<locked>>
88%
62308
90%
**14
100%
Vihtavuori N555 👍
<<locked>>
97%
62149
89%
**20
100%
Vihtavuori N560
<<locked>>
97%
59117
85%
**50
97%
Vihtavuori N565
<<locked>>
97%
50444
72%
**59
96%
Winchester 6.5 StaBALL
<<locked>>
90%
62613
90%
**32
100%
Winchester 760
<<locked>>
86%
62163
89%
**33
100%
Winchester StaBALL HD 👍
<<locked>>
97%
52895
76%
**94
100%
Winchester Supreme 780
<<locked>>
95%
62047
89%
**81
99%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI APS 450
<<locked>>
81%
59872
86%
**66
100%
ADI AR 2208
<<locked>>
81%
53969
78%
**33
100%
[ADI AR 2209]*
<<locked>>
81%
38072
55%
**54
93%
[ADI AR 2213]*
<<locked>>
83%
36999
53%
**44
90%
[ADI AR 2217]*
<<locked>>
92%
36593
53%
**18
90%
[ADI AR 2225]*
<<locked>>
90%
30719
44%
**87
90%
Accurate 2700
<<locked>>
81%
52402
75%
**48
98%
[Accurate 3100]*
<<locked>>
81%
33794
49%
**10
94%
Accurate 4064
<<locked>>
81%
57943
83%
**50
100%
Accurate 4350
<<locked>>
81%
45542
65%
**12
99%
[Accurate MAGPRO]*
<<locked>>
87%
41060
59%
**63
90%
Alliant Reloder- TS 15.5
<<locked>>
81%
55172
79%
**50
100%
Alliant Reloder-16
<<locked>>
81%
43656
63%
**22
99%
Alliant Reloder-17
<<locked>>
81%
50618
73%
**69
100%
[Alliant Reloder-19]*
<<locked>>
81%
38000
55%
**54
93%
[Alliant Reloder-22]*
<<locked>>
81%
33895
49%
**76
91%
Alliant Reloder-23
<<locked>>
81%
32445
47%
**40
98%
[Alliant Reloder-25]*
<<locked>>
81%
28297
41%
**21
91%
Alliant Reloder-26
<<locked>>
81%
35636
51%
**77
97%
[Baschieri & Pellagri 109]*
<<locked>>
89%
44846
64%
**56
90%
[Bofors RP15]*
<<locked>>
83%
33272
48%
**53
90%
Bofors RP3
<<locked>>
81%
56173
81%
**73
100%
[Bofors RP30]*
<<locked>>
90%
34824
50%
**18
90%
[Bofors RP5]*
<<locked>>
81%
33895
49%
**76
91%
Bofors RP7
<<locked>>
81%
48631
70%
**28
98%
[Hodgdon H1000]*
<<locked>>
92%
36593
53%
**18
90%
Hodgdon H380
<<locked>>
81%
56072
81%
**89
100%
Hodgdon H414
<<locked>>
81%
51648
74%
**50
99%
Hodgdon H4350
<<locked>>
81%
41669
60%
**97
96%
[Hodgdon H4831]*
<<locked>>
86%
37681
54%
**18
90%
[Hodgdon H4831 SC]*
<<locked>>
83%
37681
54%
**18
90%
Hodgdon Hybrid 100V
<<locked>>
81%
41191
59%
**04
100%
Hodgdon LVR
<<locked>>
81%
47979
69%
**71
99%
[Hodgdon Retumbo]*
<<locked>>
90%
30719
44%
**87
90%
Hodgdon Superperformance
<<locked>>
81%
47239
68%
**94
98%
Hodgdon VARGET
<<locked>>
81%
53577
77%
**17
100%
Hodgdon TrailBoss
<<locked>>
81%
28021
40%
**77
100%
IMR 4064
<<locked>>
81%
52895
76%
**97
100%
IMR 4166 Enduron
<<locked>>
81%
51619
74%
**68
99%
IMR 4350
<<locked>>
81%
43845
63%
**49
97%
IMR 4451 Enduron
<<locked>>
81%
49980
72%
**64
98%
IMR 4831
<<locked>>
81%
39349
57%
**71
98%
[IMR 4955 Enduron]*
<<locked>>
82%
36956
53%
**66
90%
[IMR 7828 SSC]*
<<locked>>
83%
36796
53%
**58
90%
Lovex S062
<<locked>>
81%
57072
82%
**53
100%
Lovex S065
<<locked>>
81%
47384
68%
**05
99%
Lovex S070
<<locked>>
81%
45672
66%
**82
98%
[Lovex S071]*
<<locked>>
81%
29066
42%
**79
92%
Norma 203B
<<locked>>
81%
57943
83%
**19
100%
Norma 204
<<locked>>
81%
43932
63%
**72
95%
[Norma 217]*
<<locked>>
94%
31299
45%
**40
90%
[Norma MRP]*
<<locked>>
81%
35462
51%
**51
94%
Norma URP
<<locked>>
81%
44846
64%
**09
99%
[Ramshot Grand]*
<<locked>>
81%
35926
52%
**41
90%
Ramshot Hunter
<<locked>>
81%
43772
63%
**92
98%
[Ramshot Magnum]*
<<locked>>
81%
31328
45%
**84
90%
ReloadSwiss RS 14
<<locked>>
81%
28631
41%
**23
100%
ReloadSwiss RS 50
<<locked>>
81%
56043
81%
**69
100%
ReloadSwiss RS 60
<<locked>>
81%
53722
77%
**15
100%
ReloadSwiss RS 62
<<locked>>
81%
45585
65%
**31
99%
ReloadSwiss RS 70
<<locked>>
81%
43918
63%
**48
99%
[ReloadSwiss RS 76]*
<<locked>>
85%
31415
45%
**30
90%
Rottweil R 903
<<locked>>
81%
52707
76%
**04
100%
[Rottweil R 904]*
<<locked>>
81%
39465
57%
**41
92%
[Rottweil R 905]*
<<locked>>
81%
37275
54%
**38
93%
Rottweil R 907
<<locked>>
81%
48631
70%
**28
98%
SNPE Vectan SP 11
<<locked>>
81%
54302
78%
**73
100%
SNPE Vectan Tubal 5000
<<locked>>
81%
53040
76%
**99
100%
SNPE Vectan Tubal 7000
<<locked>>
81%
46601
67%
**40
98%
Shooters World Long Rifle
<<locked>>
81%
47384
68%
**05
99%
Shooters World Precision
<<locked>>
81%
57072
82%
**53
100%
Somchem S355
<<locked>>
81%
52533
75%
**04
100%
[Somchem S361]*
<<locked>>
81%
40451
58%
**35
92%
Somchem S365
<<locked>>
81%
41495
60%
**53
100%
[Somchem S385]*
<<locked>>
81%
38014
55%
**28
94%
Vihtavuori N133
<<locked>>
81%
58421
84%
**71
100%
Vihtavuori N135
<<locked>>
81%
50937
73%
**02
100%
Vihtavuori N150
<<locked>>
81%
45049
65%
**27
100%
Vihtavuori N160
<<locked>>
81%
48298
69%
**38
100%
[Vihtavuori N165]*
<<locked>>
81%
31836
46%
**44
91%
Vihtavuori N550
<<locked>>
81%
48704
70%
**81
100%
Vihtavuori N555
<<locked>>
81%
36419
52%
**38
98%
[Vihtavuori N560]*
<<locked>>
84%
37826
54%
**84
90%
[Vihtavuori N565]*
<<locked>>
88%
36448
52%
**41
90%
Winchester 6.5 StaBALL
<<locked>>
81%
45498
65%
**63
100%
Winchester 760
<<locked>>
81%
51648
74%
**50
99%
Winchester StaBALL HD
<<locked>>
81%
27586
40%
**30
97%
[Winchester Supreme 780]*
<<locked>>
81%
37782
54%
**08
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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