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Load data for .338 Lapua Mag. + .375 | 250gr Hornady CX

Recommended Powder(s):

.338 Lapua Mag. + .375 | 250gr Hornady CX

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.375 | 250gr Hornady CX
Manufacturer SKU:
37084
Bullet Weight:
250gr | 16.2g
Bullet Diameter:
0.375" | 9.52mm
Bullet Length:
<<locked>>
Caliber:
.338 Lapua Mag. load data
Case Length (l3):
2.724" | 69.2mm
Cartridge Length (C.O.L.):
<<locked>>
Seated Depth:
<<locked>>
Shank Seated Depth:
<<locked>>
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_B1377_C454
Last updated:
2026-01-21

Load data for 130 loads in caliber .338 Lapua Mag. with .375 | 250gr Hornady CX bullet and 65 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
90%
90%
100%
ADI AR 2213
93%
90%
99%
ADI AR 2217
97%
74%
97%
ADI AR 2225
97%
66%
99%
Accurate 3100
93%
89%
100%
Accurate 4350
84%
89%
100%
Accurate MAGPRO
94%
90%
98%
Alliant Reloder-16
86%
90%
100%
Alliant Reloder-19
90%
90%
100%
Alliant Reloder-22
93%
90%
100%
Alliant Reloder-23
94%
89%
100%
Alliant Reloder-25
97%
83%
100%
Alliant Reloder-26
90%
89%
100%
Alliant Reloder-33
97%
68%
92%
Baschieri & Pellagri 109
94%
89%
96%
Bofors RP15
96%
90%
100%
Bofors RP30
97%
78%
98%
Bofors RP5
93%
90%
100%
Bofors RP7
83%
89%
100%
Hodgdon H1000
97%
74%
97%
Hodgdon H4350
88%
90%
100%
Hodgdon H4831
96%
89%
98%
Hodgdon H4831 SC
92%
90%
98%
Hodgdon Hybrid 100V
88%
89%
100%
Hodgdon LVR
83%
90%
100%
Hodgdon Retumbo
97%
66%
99%
Hodgdon Superperformance
83%
90%
100%
IMR 4350
86%
90%
100%
IMR 4831
89%
89%
100%
IMR 4955 Enduron
93%
90%
99%
IMR 7828 SSC
92%
89%
99%
IMR 7977 Enduron
97%
87%
92%
IMR 8133 Enduron
97%
59%
95%
Lovex S065
84%
89%
100%
Lovex S070
85%
89%
100%
Lovex S071
97%
85%
100%
Norma 204
86%
90%
99%
Norma 217
97%
60%
97%
Norma MRP
91%
89%
100%
Norma URP
85%
90%
100%
Ramshot Grand
91%
90%
99%
Ramshot Hunter
86%
89%
100%
Ramshot Magnum
94%
90%
100%
ReloadSwiss RS 14
96%
60%
100%
ReloadSwiss RS 62
84%
89%
100%
ReloadSwiss RS 70
85%
90%
100%
ReloadSwiss RS 76
97%
82%
100%
ReloadSwiss RS 80
97%
75%
97%
Rottweil R 904
89%
89%
99%
Rottweil R 905
90%
90%
100%
Rottweil R 907
83%
89%
100%
SNPE Vectan Tubal 7000
84%
90%
100%
Shooters World Long Rifle
84%
89%
100%
Somchem S361
89%
90%
98%
Somchem S365
87%
89%
100%
Somchem S385
90%
90%
100%
Vihtavuori N150
85%
89%
100%
Vihtavuori N165
96%
90%
100%
Vihtavuori N555
91%
90%
100%
Vihtavuori N560
93%
90%
99%
Vihtavuori N565
97%
87%
99%
Vihtavuori N568
97%
77%
96%
Vihtavuori N570
97%
73%
93%
Winchester 6.5 StaBALL
85%
90%
100%
Winchester StaBALL HD
96%
89%
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2209
<<locked>>
81%
40596
67%
**61
97%
[ADI AR 2213]*
<<locked>>
81%
36289
60%
**88
94%
[ADI AR 2217]*
<<locked>>
84%
29356
48%
**05
90%
[ADI AR 2225]*
<<locked>>
81%
24671
40%
**06
90%
Accurate 3100
<<locked>>
81%
36361
60%
**36
98%
Accurate 4350
<<locked>>
81%
48559
80%
**66
100%
[Accurate MAGPRO]*
<<locked>>
81%
35201
58%
**79
91%
Alliant Reloder-16
<<locked>>
81%
46470
76%
**69
100%
Alliant Reloder-19
<<locked>>
81%
40437
66%
**51
97%
Alliant Reloder-22
<<locked>>
81%
36303
60%
**02
96%
Alliant Reloder-23
<<locked>>
81%
34896
57%
**59
100%
Alliant Reloder-25
<<locked>>
81%
30429
50%
**87
97%
Alliant Reloder-26
<<locked>>
81%
38334
63%
**97
100%
[Alliant Reloder-33]*
<<locked>>
94%
37173
61%
**70
90%
[Baschieri & Pellagri 109]*
<<locked>>
81%
36680
60%
**29
90%
Bofors RP15
<<locked>>
81%
33750
55%
**36
95%
[Bofors RP30]*
<<locked>>
81%
27731
46%
**01
90%
Bofors RP5
<<locked>>
81%
36303
60%
**02
96%
Bofors RP7
<<locked>>
81%
51024
84%
**62
100%
[Hodgdon H1000]*
<<locked>>
84%
29356
48%
**05
90%
Hodgdon H4350
<<locked>>
81%
44251
73%
**67
99%
[Hodgdon H4831]*
<<locked>>
81%
34171
56%
**00
93%
[Hodgdon H4831 SC]*
<<locked>>
81%
37942
62%
**82
94%
Hodgdon Hybrid 100V
<<locked>>
81%
43961
72%
**57
100%
Hodgdon LVR
<<locked>>
81%
50705
83%
**95
100%
[Hodgdon Retumbo]*
<<locked>>
81%
24671
40%
**06
90%
Hodgdon Superperformance
<<locked>>
81%
49995
82%
**48
100%
IMR 4350
<<locked>>
81%
46485
76%
**10
99%
IMR 4831
<<locked>>
81%
42018
69%
**48
100%
[IMR 4955 Enduron]*
<<locked>>
81%
38130
63%
**52
94%
IMR 7828 SSC
<<locked>>
81%
37086
61%
**18
95%
[IMR 7977 Enduron]*
<<locked>>
93%
47311
78%
**80
90%
[IMR 8133 Enduron]*
<<locked>>
89%
28529
47%
**41
90%
Lovex S065
<<locked>>
81%
50125
82%
**46
100%
Lovex S070
<<locked>>
81%
48298
79%
**33
100%
Lovex S071
<<locked>>
81%
31343
51%
**24
97%
Norma 204
<<locked>>
81%
46499
76%
**43
98%
[Norma 217]*
<<locked>>
85%
24947
41%
**46
90%
Norma MRP
<<locked>>
81%
37840
62%
**57
98%
Norma URP
<<locked>>
81%
47558
78%
**52
100%
Ramshot Grand
<<locked>>
81%
38334
63%
**57
95%
Ramshot Hunter
<<locked>>
81%
46282
76%
**52
100%
Ramshot Magnum
<<locked>>
81%
33591
55%
**36
96%
ReloadSwiss RS 14
<<locked>>
93%
34911
57%
**47
100%
ReloadSwiss RS 62
<<locked>>
81%
48646
80%
**89
100%
ReloadSwiss RS 70
<<locked>>
81%
46731
77%
**05
100%
[ReloadSwiss RS 76]*
<<locked>>
81%
28500
47%
**57
93%
[ReloadSwiss RS 80]*
<<locked>>
87%
31821
52%
**43
90%
Rottweil R 904
<<locked>>
81%
41974
69%
**41
96%
Rottweil R 905
<<locked>>
81%
40016
66%
**38
97%
Rottweil R 907
<<locked>>
81%
51024
84%
**62
100%
SNPE Vectan Tubal 7000
<<locked>>
81%
49052
81%
**97
100%
Shooters World Long Rifle
<<locked>>
81%
50125
82%
**46
100%
Somchem S361
<<locked>>
81%
42612
70%
**25
96%
Somchem S365
<<locked>>
81%
44686
73%
**13
100%
Somchem S385
<<locked>>
81%
40480
66%
**21
98%
Vihtavuori N150
<<locked>>
81%
47790
78%
**67
100%
Vihtavuori N165
<<locked>>
81%
34098
56%
**80
96%
Vihtavuori N555
<<locked>>
81%
39102
64%
**34
100%
[Vihtavuori N560]*
<<locked>>
81%
36361
60%
**11
94%
[Vihtavuori N565]*
<<locked>>
81%
31285
51%
**80
92%
[Vihtavuori N568]*
<<locked>>
87%
32953
54%
**49
90%
[Vihtavuori N570]*
<<locked>>
92%
38203
63%
**00
90%
Winchester 6.5 StaBALL
<<locked>>
81%
48167
79%
**10
100%
Winchester StaBALL HD
<<locked>>
81%
30647
50%
**85
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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