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Load data for .338-06 A-Square + .338 | 185gr | Hornady ECX

Recommended Powder(s): Accurate 2520, Hodgdon H322, Somchem S321, Vihtavuori N530, Winchester 748

.338-06 A-Square + .338 | 185gr | Hornady ECX

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.338 | 185gr | Hornady ECX
Manufacturer SKU:
33272
Bullet Weight:
185gr | 12.0g
Bullet Diameter:
0.338" | 8.59mm
Bullet Length:
1.266" | 32.2mm
Caliber:
.338-06 A-Square load data
Case Length (l3):
2.494" | 63.3mm
Cartridge Length (C.O.L.):
3.290" | 83.6mm
Seated Depth:
0.470" | 11.9mm
Shank Seated Depth:
0.470" | 11.9mm
Case Capacity:
69.0 Grains of Water | 4.48 cm³
Primer Size:
Large Rifle (LR)
Max. allowed Pressure:
63092 psi | 4350 bar
LID:
LID_B12167_C467
Last updated:
2026-01-20

Load data for 158 loads in caliber .338-06 A-Square with .338 | 185gr | Hornady ECX bullet and 79 powders such as Accurate 2520, Hodgdon H322, Somchem S321, Vihtavuori N530, Winchester 748. 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 2206H
<<locked>>
97%
52721
84%
**43
98%
ADI AR 2207
<<locked>>
87%
55782
88%
**61
100%
ADI AR 2208
<<locked>>
97%
44773
71%
**79
95%
ADI AR 2219
<<locked>>
89%
56086
89%
**62
100%
Accurate 2015
<<locked>>
95%
55898
89%
**07
100%
Accurate 2200
<<locked>>
96%
56550
90%
**36
96%
Accurate 2230
<<locked>>
92%
56217
89%
**40
99%
Accurate 2460
<<locked>>
93%
56434
89%
**59
100%
Accurate 2495
<<locked>>
97%
51735
82%
**36
100%
Accurate 2520 👍
<<locked>>
97%
54752
87%
**76
100%
Accurate 4064
<<locked>>
97%
42569
67%
**05
99%
Alliant AR-Comp
<<locked>>
97%
54012
86%
**53
100%
Alliant Power Pro 2000-MR
<<locked>>
97%
48617
77%
**53
95%
Alliant Reloder- TS 15.5
<<locked>>
97%
42409
67%
**89
96%
Alliant Reloder-10x
<<locked>>
92%
56768
90%
**33
100%
Alliant Reloder-15
<<locked>>
97%
46818
74%
**61
96%
[Alliant Reloder-17]*
<<locked>>
97%
38130
60%
**43
93%
Alliant Reloder-7
<<locked>>
86%
55941
89%
**61
100%
Baschieri & Pellagri 106
<<locked>>
90%
56753
90%
**71
100%
Baschieri & Pellagri 107
<<locked>>
97%
51721
82%
**36
96%
Bofors RP3
<<locked>>
97%
41901
66%
**95
96%
Hodgdon BL-C2
<<locked>>
97%
54795
87%
**02
99%
Hodgdon Benchmark
<<locked>>
96%
56478
90%
**17
99%
Hodgdon CFE BLK
<<locked>>
87%
56217
89%
**80
99%
[Hodgdon CFE223]*
<<locked>>
97%
45905
73%
**71
94%
Hodgdon H322 👍
<<locked>>
95%
56086
89%
**62
100%
Hodgdon H335
<<locked>>
90%
56333
89%
**76
100%
[Hodgdon H380]*
<<locked>>
97%
44077
70%
**98
93%
Hodgdon H4198
<<locked>>
88%
56550
90%
**74
100%
Hodgdon VARGET
<<locked>>
97%
44367
70%
**72
95%
IMR 3031
<<locked>>
97%
46093
73%
**80
100%
IMR 4064
<<locked>>
97%
43250
69%
**49
95%
IMR 4198
<<locked>>
92%
56652
90%
**80
100%
IMR 4895
<<locked>>
97%
47892
76%
**00
97%
IMR 8208 XBR
<<locked>>
97%
55999
89%
**59
99%
Lovex D073.4
<<locked>>
91%
56173
89%
**40
99%
Lovex D073.5
<<locked>>
93%
55840
89%
**46
99%
Lovex D073.6
<<locked>>
97%
50169
80%
**10
99%
Lovex S060
<<locked>>
96%
53519
85%
**74
98%
Lovex S062
<<locked>>
96%
45078
71%
**02
97%
Norma 200
<<locked>>
88%
56028
89%
**97
100%
Norma 201
<<locked>>
97%
51256
81%
**94
98%
Norma 202
<<locked>>
97%
51256
81%
**03
100%
Norma 203B
<<locked>>
97%
45934
73%
**54
96%
Ramshot Big Game
<<locked>>
97%
45977
73%
**57
96%
Ramshot TAC
<<locked>>
96%
56304
89%
**46
95%
Ramshot Wild Boar
<<locked>>
97%
55114
87%
**76
98%
Ramshot X-Terminator
<<locked>>
94%
56130
89%
**30
98%
ReloadSwiss RS 40
<<locked>>
93%
56072
89%
**56
100%
ReloadSwiss RS 52
<<locked>>
97%
48660
77%
**56
96%
ReloadSwiss RS 60
<<locked>>
97%
40654
64%
**18
97%
Rottweil R 901
<<locked>>
97%
55521
88%
**30
100%
Rottweil R 902
<<locked>>
97%
48704
77%
**41
98%
Rottweil R 903
<<locked>>
97%
38609
61%
**23
95%
SNPE Vectan BA6 1/2
<<locked>>
87%
56318
89%
**18
100%
SNPE Vectan SP 10
<<locked>>
89%
56101
89%
**69
100%
[SNPE Vectan SP 11]*
<<locked>>
97%
41495
66%
**82
94%
SNPE Vectan SP 7
<<locked>>
97%
53809
85%
**17
95%
SNPE Vectan SP 9
<<locked>>
97%
50821
81%
**07
97%
SNPE Vectan Tubal 3000
<<locked>>
97%
54505
86%
**61
100%
SNPE Vectan Tubal 5000
<<locked>>
97%
44048
70%
**13
100%
Shooters World Match Rifle
<<locked>>
97%
50169
80%
**10
99%
Shooters World Precision
<<locked>>
96%
45078
71%
**02
97%
Shooters World Tactical Rifle
<<locked>>
90%
55637
88%
**10
99%
Somchem S321 👍
<<locked>>
94%
56347
89%
**82
99%
Somchem S335
<<locked>>
97%
52779
84%
**54
100%
Somchem S341
<<locked>>
97%
52968
84%
**17
97%
Somchem S355
<<locked>>
97%
40509
64%
**36
95%
Vihtavuori N120
<<locked>>
89%
56304
89%
**15
100%
Vihtavuori N130
<<locked>>
95%
56739
90%
**77
100%
Vihtavuori N133
<<locked>>
97%
49400
78%
**98
100%
Vihtavuori N135
<<locked>>
97%
38653
61%
**93
100%
Vihtavuori N140
<<locked>>
97%
47834
76%
**31
100%
Vihtavuori N150
<<locked>>
97%
34026
54%
**85
95%
Vihtavuori N530 👍
<<locked>>
95%
56623
90%
**76
99%
Vihtavuori N540
<<locked>>
97%
47471
75%
**51
99%
[Winchester 6.5 StaBALL]*
<<locked>>
97%
35911
57%
**95
92%
Winchester 748 👍
<<locked>>
95%
55956
89%
**18
100%
Winchester StaBALL Match
<<locked>>
92%
56347
89%
**02
98%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
[ADI AR 2206H]*
<<locked>>
81%
31923
51%
**29
91%
ADI AR 2207
<<locked>>
81%
47137
75%
**43
100%
[ADI AR 2208]*
<<locked>>
87%
32996
52%
**33
90%
ADI AR 2219
<<locked>>
81%
42293
67%
**56
99%
Accurate 2015
<<locked>>
81%
36448
58%
**98
100%
[Accurate 2200]*
<<locked>>
82%
35810
57%
**72
90%
Accurate 2230
<<locked>>
81%
37927
60%
**38
95%
Accurate 2460
<<locked>>
81%
37536
59%
**44
96%
Accurate 2495
<<locked>>
81%
30327
48%
**52
98%
Accurate 2520
<<locked>>
81%
31357
50%
**56
95%
[Accurate 4064]*
<<locked>>
81%
25541
40%
**15
94%
Alliant AR-Comp
<<locked>>
81%
31937
51%
**85
100%
[Alliant Power Pro 2000-MR]*
<<locked>>
88%
36535
58%
**93
90%
[Alliant Reloder- TS 15.5]*
<<locked>>
83%
27934
44%
**60
90%
Alliant Reloder-10x
<<locked>>
81%
39900
63%
**74
100%
[Alliant Reloder-15]*
<<locked>>
85%
31995
51%
**56
90%
[Alliant Reloder-17]*
<<locked>>
92%
33098
52%
**18
90%
Alliant Reloder-7
<<locked>>
81%
48225
76%
**52
100%
Baschieri & Pellagri 106
<<locked>>
81%
42409
67%
**61
100%
[Baschieri & Pellagri 107]*
<<locked>>
84%
34592
55%
**05
90%
[Bofors RP3]*
<<locked>>
84%
27499
44%
**70
90%
[Hodgdon BL-C2]*
<<locked>>
81%
31633
50%
**69
93%
Hodgdon Benchmark
<<locked>>
81%
36506
58%
**75
96%
Hodgdon CFE BLK
<<locked>>
81%
47123
75%
**43
98%
[Hodgdon CFE223]*
<<locked>>
89%
35824
57%
**61
90%
Hodgdon H322
<<locked>>
81%
35563
56%
**18
98%
Hodgdon H335
<<locked>>
81%
41379
66%
**39
99%
[Hodgdon H380]*
<<locked>>
91%
36361
58%
**41
90%
Hodgdon H4198
<<locked>>
81%
45484
72%
**03
100%
[Hodgdon VARGET]*
<<locked>>
87%
32663
52%
**23
90%
IMR 3031
<<locked>>
81%
28108
45%
**93
97%
[IMR 4064]*
<<locked>>
87%
32285
51%
**13
90%
IMR 4198
<<locked>>
81%
41191
65%
**57
100%
[IMR 4895]*
<<locked>>
83%
30284
48%
**26
90%
[IMR 8208 XBR]*
<<locked>>
81%
33852
54%
**59
94%
Lovex D073.4
<<locked>>
81%
39291
62%
**70
97%
Lovex D073.5
<<locked>>
81%
37289
59%
**38
96%
[Lovex D073.6]*
<<locked>>
81%
29428
47%
**06
94%
[Lovex S060]*
<<locked>>
81%
33663
53%
**00
92%
[Lovex S062]*
<<locked>>
81%
28094
45%
**34
91%
Norma 200
<<locked>>
81%
45107
71%
**43
100%
[Norma 201]*
<<locked>>
81%
31357
50%
**00
93%
Norma 202
<<locked>>
81%
31096
49%
**20
96%
[Norma 203B]*
<<locked>>
84%
30153
48%
**16
90%
[Ramshot Big Game]*
<<locked>>
86%
32300
51%
**69
90%
[Ramshot TAC]*
<<locked>>
85%
38986
62%
**48
90%
[Ramshot Wild Boar]*
<<locked>>
81%
32663
52%
**62
91%
[Ramshot X-Terminator]*
<<locked>>
81%
37159
59%
**05
93%
ReloadSwiss RS 40
<<locked>>
81%
38406
61%
**57
97%
[ReloadSwiss RS 52]*
<<locked>>
85%
33156
53%
**31
90%
[ReloadSwiss RS 60]*
<<locked>>
85%
28282
45%
**87
90%
Rottweil R 901
<<locked>>
81%
34795
55%
**69
97%
[Rottweil R 902]*
<<locked>>
81%
29718
47%
**54
92%
[Rottweil R 903]*
<<locked>>
87%
28094
45%
**74
90%
SNPE Vectan BA6 1/2
<<locked>>
81%
48704
77%
**26
100%
SNPE Vectan SP 10
<<locked>>
81%
42728
68%
**59
99%
[SNPE Vectan SP 11]*
<<locked>>
89%
32503
52%
**75
90%
[SNPE Vectan SP 7]*
<<locked>>
86%
37202
59%
**28
90%
[SNPE Vectan SP 9]*
<<locked>>
81%
30850
49%
**03
90%
SNPE Vectan Tubal 3000
<<locked>>
81%
33547
53%
**93
97%
SNPE Vectan Tubal 5000
<<locked>>
81%
27006
43%
**59
95%
[Shooters World Match Rifle]*
<<locked>>
81%
29428
47%
**06
94%
[Shooters World Precision]*
<<locked>>
81%
28094
45%
**34
91%
Shooters World Tactical Rifle
<<locked>>
81%
40785
65%
**67
96%
Somchem S321
<<locked>>
81%
36114
57%
**38
95%
Somchem S335
<<locked>>
81%
32561
52%
**93
97%
[Somchem S341]*
<<locked>>
81%
31517
50%
**13
90%
[Somchem S355]*
<<locked>>
86%
29095
46%
**80
90%
Vihtavuori N120
<<locked>>
81%
44266
70%
**54
100%
Vihtavuori N130
<<locked>>
81%
37405
59%
**79
100%
Vihtavuori N133
<<locked>>
81%
31067
49%
**60
98%
Vihtavuori N135
<<locked>>
81%
23801
38%
**33
95%
Vihtavuori N140
<<locked>>
81%
29095
46%
**54
95%
[Vihtavuori N150]*
<<locked>>
88%
25875
41%
**75
90%
Vihtavuori N530
<<locked>>
81%
35578
56%
**11
95%
[Vihtavuori N540]*
<<locked>>
81%
28529
45%
**57
94%
[Winchester 6.5 StaBALL]*
<<locked>>
93%
32387
51%
**10
90%
Winchester 748
<<locked>>
81%
34824
55%
**41
95%
[Winchester StaBALL Match]*
<<locked>>
81%
36912
58%
**67
94%

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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