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Load data for .338 Lapua Mag. + .338 | 225gr | Speer Grand Slam

Recommended Powder(s):

.338 Lapua Mag. + .338 | 225gr | Speer Grand Slam

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.338 | 225gr | Speer Grand Slam
Manufacturer SKU:
2407
Bullet Weight:
225gr | 14.6g
Bullet Diameter:
0.338" | 8.59mm
Bullet Length:
1.160" | 29.5mm
Caliber:
.338 Lapua Mag. load data
Case Length (l3):
2.724" | 69.2mm
Cartridge Length (C.O.L.):
3.626" | 92.1mm
Seated Depth:
0.258" | 6.6mm
Shank Seated Depth:
0.258" | 6.6mm
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_B6192_C454
Last updated:
2025-01-01

Load data for 116 loads in caliber .338 Lapua Mag. with .338 | 225gr | Speer Grand Slam bullet and 58 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>>
90%
54215
89%
**44
99%
ADI AR 2213
<<locked>>
94%
54781
90%
**87
99%
ADI AR 2217
<<locked>>
97%
44788
74%
**00
97%
ADI AR 2225
<<locked>>
97%
40335
66%
**67
98%
Accurate 3100
<<locked>>
93%
54636
90%
**95
100%
Accurate 4350
<<locked>>
85%
54723
90%
**08
100%
Accurate MAGPRO
<<locked>>
93%
54201
89%
**84
97%
Alliant Reloder-16
<<locked>>
86%
54534
90%
**44
100%
Alliant Reloder-19 👍
<<locked>>
91%
54737
90%
**51
99%
Alliant Reloder-22 👍
<<locked>>
94%
54810
90%
**90
99%
Alliant Reloder-23
<<locked>>
95%
54447
89%
**31
100%
Alliant Reloder-25 👍
<<locked>>
97%
50618
83%
**48
100%
Alliant Reloder-26
<<locked>>
91%
54636
90%
**20
100%
Hodgdon H1000
<<locked>>
97%
44788
74%
**00
97%
Hodgdon H4350
<<locked>>
88%
54650
90%
**89
100%
Hodgdon H4831
<<locked>>
96%
54505
89%
**25
98%
Hodgdon H4831 SC
<<locked>>
92%
54505
89%
**25
98%
Hodgdon Hybrid 100V
<<locked>>
88%
54752
90%
**76
100%
Hodgdon LVR
<<locked>>
83%
54636
90%
**12
100%
Hodgdon Retumbo
<<locked>>
97%
40335
66%
**67
98%
Hodgdon Superperformance
<<locked>>
83%
54360
89%
**61
100%
Hodgdon TrailBoss
<<locked>>
96%
35433
58%
**52
100%
IMR 4350
<<locked>>
86%
54375
89%
**79
100%
IMR 4831
<<locked>>
90%
54723
90%
**92
100%
IMR 4955 Enduron
<<locked>>
93%
54389
89%
**89
98%
IMR 7828 SSC
<<locked>>
93%
54708
90%
**94
99%
[IMR 8133 Enduron]*
<<locked>>
97%
35998
59%
**66
94%
Lovex S065
<<locked>>
84%
54215
89%
**59
100%
Lovex S070
<<locked>>
85%
54621
90%
**82
100%
Lovex S071
<<locked>>
97%
51445
84%
**46
100%
Norma 204
<<locked>>
86%
54795
90%
**25
99%
Norma 217
<<locked>>
97%
36230
59%
**98
96%
Norma MRP 👍
<<locked>>
91%
54360
89%
**04
100%
Norma URP
<<locked>>
85%
54563
90%
**08
100%
Ramshot Hunter
<<locked>>
86%
54563
90%
**31
100%
Ramshot Magnum
<<locked>>
94%
54708
90%
**61
100%
ReloadSwiss RS 14
<<locked>>
96%
36274
60%
**91
100%
ReloadSwiss RS 62
<<locked>>
84%
54389
89%
**22
100%
ReloadSwiss RS 70
<<locked>>
86%
54694
90%
**84
100%
ReloadSwiss RS 76
<<locked>>
97%
49661
82%
**97
100%
ReloadSwiss RS 80
<<locked>>
97%
44773
73%
**62
95%
Rottweil R 904
<<locked>>
89%
54592
90%
**99
98%
Rottweil R 905
<<locked>>
91%
54491
89%
**38
99%
Rottweil R 907
<<locked>>
83%
54505
89%
**69
100%
SNPE Vectan Tubal 7000
<<locked>>
84%
54215
89%
**26
100%
Shooters World Long Rifle
<<locked>>
84%
54215
89%
**59
100%
Somchem S361
<<locked>>
89%
54766
90%
**69
98%
Somchem S365
<<locked>>
87%
54433
89%
**02
100%
Somchem S385
<<locked>>
90%
54201
89%
**05
100%
Vihtavuori N150
<<locked>>
86%
54665
90%
**17
100%
Vihtavuori N160
<<locked>>
83%
54447
89%
**76
100%
Vihtavuori N165
<<locked>>
96%
54795
90%
**92
100%
Vihtavuori N555
<<locked>>
91%
54491
89%
**31
100%
Vihtavuori N560
<<locked>>
93%
54520
89%
**04
98%
Vihtavuori N565
<<locked>>
97%
53040
87%
**61
98%
Vihtavuori N568
<<locked>>
97%
46528
76%
**85
95%
Winchester 6.5 StaBALL
<<locked>>
85%
54505
89%
**46
100%
Winchester StaBALL HD
<<locked>>
96%
54592
90%
**43
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2209
<<locked>>
81%
40118
66%
**82
96%
[ADI AR 2213]*
<<locked>>
81%
35868
59%
**03
93%
[ADI AR 2217]*
<<locked>>
86%
31560
52%
**82
90%
[ADI AR 2225]*
<<locked>>
84%
26339
43%
**70
90%
Accurate 3100
<<locked>>
81%
35926
59%
**54
98%
Accurate 4350
<<locked>>
81%
48167
79%
**03
100%
[Accurate MAGPRO]*
<<locked>>
81%
35056
58%
**00
90%
Alliant Reloder-16
<<locked>>
81%
46195
76%
**10
100%
Alliant Reloder-19
<<locked>>
81%
40118
66%
**82
96%
Alliant Reloder-22
<<locked>>
81%
35940
59%
**20
95%
Alliant Reloder-23
<<locked>>
81%
34519
57%
**84
100%
Alliant Reloder-25
<<locked>>
81%
30037
49%
**92
96%
Alliant Reloder-26
<<locked>>
81%
38043
62%
**21
99%
[Hodgdon H1000]*
<<locked>>
86%
31560
52%
**82
90%
Hodgdon H4350
<<locked>>
81%
43859
72%
**98
98%
[Hodgdon H4831]*
<<locked>>
81%
33794
55%
**08
91%
[Hodgdon H4831 SC]*
<<locked>>
81%
37608
62%
**03
93%
Hodgdon Hybrid 100V
<<locked>>
81%
43424
71%
**98
100%
Hodgdon LVR
<<locked>>
81%
50459
83%
**49
100%
[Hodgdon Retumbo]*
<<locked>>
84%
26339
43%
**70
90%
Hodgdon Superperformance
<<locked>>
81%
49617
81%
**79
99%
Hodgdon TrailBoss
<<locked>>
85%
30255
50%
**47
100%
IMR 4350
<<locked>>
81%
45876
75%
**38
99%
IMR 4831
<<locked>>
81%
41524
68%
**75
100%
[IMR 4955 Enduron]*
<<locked>>
81%
37753
62%
**77
93%
[IMR 7828 SSC]*
<<locked>>
81%
36753
60%
**36
93%
[IMR 8133 Enduron]*
<<locked>>
92%
30574
50%
**15
90%
Lovex S065
<<locked>>
81%
49705
82%
**87
100%
Lovex S070
<<locked>>
81%
47979
79%
**74
99%
Lovex S071
<<locked>>
81%
30966
51%
**33
96%
Norma 204
<<locked>>
81%
46079
76%
**84
98%
[Norma 217]*
<<locked>>
88%
26571
44%
**06
90%
Norma MRP
<<locked>>
81%
37536
62%
**82
97%
Norma URP
<<locked>>
81%
47224
78%
**94
100%
Ramshot Hunter
<<locked>>
81%
45992
75%
**87
99%
[Ramshot Magnum]*
<<locked>>
81%
33185
54%
**44
94%
ReloadSwiss RS 14
<<locked>>
81%
28979
48%
**40
100%
ReloadSwiss RS 62
<<locked>>
81%
48211
79%
**26
100%
ReloadSwiss RS 70
<<locked>>
81%
46209
76%
**43
100%
[ReloadSwiss RS 76]*
<<locked>>
81%
28282
46%
**62
92%
[ReloadSwiss RS 80]*
<<locked>>
89%
34127
56%
**20
90%
Rottweil R 904
<<locked>>
81%
41495
68%
**66
95%
Rottweil R 905
<<locked>>
81%
39421
65%
**66
96%
Rottweil R 907
<<locked>>
81%
50821
83%
**10
99%
SNPE Vectan Tubal 7000
<<locked>>
81%
48631
80%
**31
99%
Shooters World Long Rifle
<<locked>>
81%
49705
82%
**87
100%
Somchem S361
<<locked>>
81%
42163
69%
**52
95%
Somchem S365
<<locked>>
81%
43990
72%
**48
100%
Somchem S385
<<locked>>
81%
40118
66%
**46
97%
Vihtavuori N150
<<locked>>
81%
47485
78%
**12
100%
Vihtavuori N160
<<locked>>
81%
50647
83%
**13
100%
Vihtavuori N165
<<locked>>
81%
33823
56%
**05
95%
Vihtavuori N555
<<locked>>
81%
38769
64%
**62
100%
[Vihtavuori N560]*
<<locked>>
81%
35998
59%
**30
92%
[Vihtavuori N565]*
<<locked>>
81%
30879
51%
**88
90%
[Vihtavuori N568]*
<<locked>>
89%
34911
57%
**30
90%
Winchester 6.5 StaBALL
<<locked>>
81%
47776
78%
**48
100%
Winchester StaBALL HD
<<locked>>
81%
30153
49%
**93
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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