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Load data for .338 Lapua Mag. Ackley Improved + .338 | 250gr | Hornady SP

Recommended Powder(s):

.338 Lapua Mag. Ackley Improved + .338 | 250gr | Hornady SP

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.338 | 250gr | Hornady SP
Manufacturer SKU:
3335
Bullet Weight:
250gr | 16.2g
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_B2756_C452
Last updated:
2025-01-01

Load data for 0 loads in caliber .338 Lapua Mag. Ackley Improved with .338 | 250gr | Hornady SP bullet and 0 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".

  • 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.

    .

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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%
62294
89%
**64
100%
ADI AR 2213 👍
<<locked>>
91%
62120
89%
**00
100%
ADI AR 2217
<<locked>>
97%
56579
81%
**18
100%
ADI AR 2218
<<locked>>
97%
48878
70%
**79
96%
ADI AR 2225
<<locked>>
97%
51445
74%
**85
100%
Accurate 3100
<<locked>>
91%
62294
89%
**92
100%
[Accurate 8700]*
<<locked>>
97%
38754
56%
**00
92%
Accurate MAGPRO 👍
<<locked>>
91%
62352
90%
**13
100%
Alliant Reloder-16
<<locked>>
84%
62265
89%
**41
100%
Alliant Reloder-19
<<locked>>
88%
62062
89%
**58
100%
Alliant Reloder-22
<<locked>>
91%
62511
90%
**97
100%
Alliant Reloder-23
<<locked>>
92%
62221
89%
**18
100%
Alliant Reloder-25
<<locked>>
96%
62236
89%
**87
100%
Alliant Reloder-26
<<locked>>
87%
62569
90%
**00
100%
Alliant Reloder-33
<<locked>>
97%
53954
78%
**44
98%
Alliant Reloder-50
<<locked>>
97%
46108
66%
**00
95%
Baschieri & Pellagri 109
<<locked>>
93%
62613
90%
**58
99%
Bofors RP15
<<locked>>
93%
62294
89%
**90
100%
Bofors RP30
<<locked>>
97%
59901
86%
**77
100%
Bofors RP5
<<locked>>
91%
62511
90%
**97
100%
Hodgdon H1000
<<locked>>
97%
56579
81%
**18
100%
Hodgdon H4350
<<locked>>
87%
62453
90%
**02
100%
Hodgdon H4831
<<locked>>
94%
62047
89%
**44
100%
Hodgdon H4831 SC
<<locked>>
90%
62308
89%
**51
100%
Hodgdon Hybrid 100V
<<locked>>
86%
62294
89%
**59
100%
Hodgdon Retumbo
<<locked>>
97%
51445
74%
**85
100%
Hodgdon TrailBoss
<<locked>>
97%
36230
52%
**22
100%
IMR 4350
<<locked>>
85%
62468
90%
**08
100%
IMR 4831
<<locked>>
88%
62410
90%
**85
100%
IMR 4955 Enduron
<<locked>>
91%
62294
89%
**25
100%
IMR 7828 SSC 👍
<<locked>>
90%
62424
90%
**07
100%
IMR 7977 Enduron
<<locked>>
96%
62062
89%
**89
96%
IMR 8133 Enduron
<<locked>>
97%
47137
68%
**00
99%
[Lovex D100]*
<<locked>>
97%
56144
81%
**36
93%
Lovex S065
<<locked>>
83%
62584
90%
**72
100%
Lovex S070
<<locked>>
84%
62047
89%
**92
100%
Lovex S071
<<locked>>
96%
62294
89%
**92
100%
Norma 204
<<locked>>
84%
62598
90%
**41
100%
Norma 217
<<locked>>
97%
48167
69%
**23
100%
Norma MRP
<<locked>>
89%
62308
89%
**97
100%
Norma URP
<<locked>>
84%
62265
89%
**08
100%
Ramshot Grand
<<locked>>
88%
62598
90%
**13
100%
Ramshot Hunter
<<locked>>
84%
62642
90%
**38
100%
Ramshot Magnum
<<locked>>
91%
62656
90%
**71
100%
ReloadSwiss RS 14
<<locked>>
97%
37202
53%
**65
100%
ReloadSwiss RS 70
<<locked>>
83%
62526
90%
**64
100%
ReloadSwiss RS 76
<<locked>>
95%
61931
89%
**66
100%
ReloadSwiss RS 80
<<locked>>
97%
59741
86%
**13
100%
Rottweil R 904
<<locked>>
88%
62323
90%
**18
100%
Rottweil R 905
<<locked>>
89%
62250
89%
**58
100%
[SNPE Vectan SP 13]*
<<locked>>
97%
40915
59%
**23
93%
SNPE Vectan Tubal 7000
<<locked>>
84%
62540
90%
**49
100%
[Shooters World 50 BMG]*
<<locked>>
97%
56144
81%
**36
93%
Shooters World Long Rifle
<<locked>>
83%
62584
90%
**72
100%
Somchem S361
<<locked>>
87%
62221
89%
**92
100%
Somchem S365
<<locked>>
85%
62207
89%
**85
100%
Somchem S385
<<locked>>
88%
62279
89%
**15
100%
Vihtavuori N150
<<locked>>
85%
62642
90%
**10
100%
Vihtavuori N165
<<locked>>
94%
62468
90%
**08
100%
Vihtavuori N170
<<locked>>
97%
52562
76%
**03
96%
Vihtavuori N555
<<locked>>
89%
62236
89%
**15
100%
Vihtavuori N560 👍
<<locked>>
91%
62627
90%
**23
100%
Vihtavuori N565 👍
<<locked>>
95%
62482
90%
**94
100%
Vihtavuori N568
<<locked>>
97%
60365
87%
**17
100%
Vihtavuori N570
<<locked>>
97%
58189
84%
**23
98%
Winchester 6.5 StaBALL
<<locked>>
83%
62555
90%
**40
100%
Winchester StaBALL HD
<<locked>>
92%
62120
89%
**04
100%
Winchester Supreme 780
<<locked>>
88%
62526
90%
**18
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2209
<<locked>>
81%
48921
70%
**61
100%
ADI AR 2213
<<locked>>
81%
44179
63%
**05
98%
[ADI AR 2217]*
<<locked>>
81%
32851
47%
**56
94%
[ADI AR 2218]*
<<locked>>
88%
35882
52%
**87
90%
ADI AR 2225
<<locked>>
81%
30066
43%
**29
97%
Accurate 3100
<<locked>>
81%
44788
64%
**36
100%
[Accurate 8700]*
<<locked>>
95%
35781
51%
**28
90%
Accurate MAGPRO
<<locked>>
81%
43990
63%
**08
96%
Alliant Reloder-16
<<locked>>
81%
56318
81%
**56
100%
Alliant Reloder-19
<<locked>>
81%
48863
70%
**57
100%
Alliant Reloder-22
<<locked>>
81%
44846
64%
**12
99%
Alliant Reloder-23
<<locked>>
81%
43497
62%
**49
100%
Alliant Reloder-25
<<locked>>
81%
37608
54%
**00
100%
Alliant Reloder-26
<<locked>>
81%
49284
71%
**20
100%
[Alliant Reloder-33]*
<<locked>>
84%
33895
49%
**31
90%
[Alliant Reloder-50]*
<<locked>>
89%
34925
50%
**57
90%
Baschieri & Pellagri 109
<<locked>>
81%
42554
61%
**23
95%
Bofors RP15
<<locked>>
81%
41756
60%
**49
98%
Bofors RP30
<<locked>>
81%
35128
50%
**31
96%
Bofors RP5
<<locked>>
81%
44846
64%
**12
99%
[Hodgdon H1000]*
<<locked>>
81%
32851
47%
**56
94%
Hodgdon H4350
<<locked>>
81%
52025
75%
**54
100%
Hodgdon H4831
<<locked>>
81%
41394
59%
**03
97%
Hodgdon H4831 SC
<<locked>>
81%
46137
66%
**98
98%
Hodgdon Hybrid 100V
<<locked>>
81%
52881
76%
**35
100%
Hodgdon Retumbo
<<locked>>
81%
30066
43%
**29
97%
Hodgdon TrailBoss
<<locked>>
89%
32329
46%
**47
100%
IMR 4350
<<locked>>
81%
54708
79%
**00
100%
IMR 4831
<<locked>>
81%
50299
72%
**21
100%
IMR 4955 Enduron
<<locked>>
81%
45005
65%
**46
98%
IMR 7828 SSC
<<locked>>
81%
45571
65%
**44
98%
[IMR 7977 Enduron]*
<<locked>>
84%
41423
59%
**41
90%
[IMR 8133 Enduron]*
<<locked>>
81%
27485
39%
**38
91%
[Lovex D100]*
<<locked>>
91%
45440
65%
**56
90%
Lovex S065
<<locked>>
81%
58305
84%
**17
100%
Lovex S070
<<locked>>
81%
56898
82%
**23
100%
Lovex S071
<<locked>>
81%
38479
55%
**18
99%
Norma 204
<<locked>>
81%
55724
80%
**49
100%
[Norma 217]*
<<locked>>
81%
27528
40%
**60
94%
Norma MRP
<<locked>>
81%
47732
69%
**80
100%
Norma URP
<<locked>>
81%
57029
82%
**40
100%
Ramshot Grand
<<locked>>
81%
48457
70%
**03
99%
Ramshot Hunter
<<locked>>
81%
55869
80%
**49
100%
Ramshot Magnum
<<locked>>
81%
42438
61%
**62
99%
ReloadSwiss RS 14
<<locked>>
84%
31038
45%
**44
100%
ReloadSwiss RS 70
<<locked>>
81%
57609
83%
**05
100%
ReloadSwiss RS 76
<<locked>>
81%
35998
52%
**10
99%
[ReloadSwiss RS 80]*
<<locked>>
81%
32822
47%
**98
93%
Rottweil R 904
<<locked>>
81%
49763
71%
**35
99%
Rottweil R 905
<<locked>>
81%
48544
70%
**44
100%
[SNPE Vectan SP 13]*
<<locked>>
93%
35882
52%
**15
90%
SNPE Vectan Tubal 7000
<<locked>>
81%
57174
82%
**77
100%
[Shooters World 50 BMG]*
<<locked>>
91%
45440
65%
**56
90%
Shooters World Long Rifle
<<locked>>
81%
58305
84%
**17
100%
Somchem S361
<<locked>>
81%
50676
73%
**31
99%
Somchem S365
<<locked>>
81%
54723
79%
**94
100%
Somchem S385
<<locked>>
81%
48979
70%
**25
100%
Vihtavuori N150
<<locked>>
81%
55927
80%
**25
100%
Vihtavuori N165
<<locked>>
81%
41597
60%
**80
99%
[Vihtavuori N170]*
<<locked>>
86%
37028
53%
**98
90%
Vihtavuori N555
<<locked>>
81%
48327
69%
**25
100%
Vihtavuori N560
<<locked>>
81%
44991
65%
**41
98%
Vihtavuori N565
<<locked>>
81%
39262
56%
**07
97%
[Vihtavuori N568]*
<<locked>>
81%
34200
49%
**21
93%
[Vihtavuori N570]*
<<locked>>
83%
34954
50%
**64
90%
Winchester 6.5 StaBALL
<<locked>>
81%
57870
83%
**84
100%
Winchester StaBALL HD
<<locked>>
81%
41611
60%
**05
100%
Winchester Supreme 780
<<locked>>
81%
49110
71%
**31
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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