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Load data for .280 Ackley Improved + .284 | 150gr Hornady ECX

Recommended Powder(s): Hodgdon LilGun, Lovex S040

.280 Ackley Improved + .284 | 150gr Hornady ECX

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.284 | 150gr Hornady ECX
Manufacturer SKU:
28214
Bullet Weight:
150gr | 9.7g
Bullet Diameter:
0.284" | 7.21mm
Bullet Length:
1.320" | 33.5mm
Caliber:
.280 Ackley Improved load data
Case Length (l3):
2.540" | 64.5mm
Cartridge Length (C.O.L.):
2.997" | 76.1mm
Seated Depth:
0.863" | 21.9mm
Shank Seated Depth:
0.863" | 21.9mm
Case Capacity:
74.0 Grains of Water | 4.80 cm³
Primer Size:
Large Rifle (LR)
Max. allowed Pressure:
64977 psi | 4480 bar
LID:
LID_B1385_C285
Last updated:
2025-01-01

Load data for 194 loads in caliber .280 Ackley Improved with .284 | 150gr Hornady ECX bullet and 97 powders such as Hodgdon LilGun, Lovex S040. 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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  • .

    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.

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>>
85%
57841
89%
**38
100%
ADI AR 2208
<<locked>>
90%
58030
89%
**25
100%
ADI AR 2209
<<locked>>
97%
49487
76%
**79
96%
[ADI AR 2213]*
<<locked>>
97%
44179
68%
**97
92%
Accurate 2200
<<locked>>
83%
57479
88%
**12
100%
Accurate 2495
<<locked>>
83%
58218
90%
**79
100%
Accurate 2700
<<locked>>
91%
58305
90%
**89
98%
Accurate 3100
<<locked>>
96%
42047
65%
**18
97%
Accurate 4064
<<locked>>
88%
57667
89%
**99
100%
Accurate 4350 👍
<<locked>>
96%
58117
89%
**04
100%
Alliant Reloder- TS 15.5
<<locked>>
90%
58247
90%
**51
100%
Alliant Reloder-15
<<locked>>
88%
57711
89%
**54
100%
Alliant Reloder-16 👍
<<locked>>
97%
55216
85%
**04
100%
Alliant Reloder-17
<<locked>>
93%
58160
90%
**59
100%
Alliant Reloder-19
<<locked>>
96%
48124
74%
**56
96%
[Alliant Reloder-22]*
<<locked>>
97%
42757
66%
**00
94%
Alliant Reloder-23
<<locked>>
97%
40495
62%
**64
100%
Alliant Reloder-25
<<locked>>
97%
35346
54%
**56
95%
Alliant Reloder-26
<<locked>>
97%
45223
70%
**25
99%
Baschieri & Pellagri 107
<<locked>>
85%
58305
90%
**64
100%
Hodgdon BL-C2
<<locked>>
83%
58088
89%
**51
100%
Hodgdon CFE223
<<locked>>
88%
57595
89%
**94
100%
Hodgdon H380
<<locked>>
89%
58204
90%
**64
100%
Hodgdon H414 👍
<<locked>>
92%
57464
88%
**04
99%
Hodgdon H4350
<<locked>>
97%
53896
83%
**92
98%
[Hodgdon H4831 SC]*
<<locked>>
97%
46470
72%
**90
93%
Hodgdon Hybrid 100V
<<locked>>
97%
52040
80%
**85
100%
Hodgdon LVR
<<locked>>
95%
58407
90%
**00
100%
Hodgdon Superperformance
<<locked>>
95%
57435
88%
**36
99%
Hodgdon VARGET
<<locked>>
91%
58407
90%
**38
100%
Hodgdon TrailBoss
<<locked>>
96%
34069
52%
**83
100%
IMR 3031
<<locked>>
87%
57624
89%
**08
100%
IMR 4064
<<locked>>
91%
57856
89%
**18
100%
IMR 4166 Enduron
<<locked>>
91%
57827
89%
**08
99%
IMR 4350
<<locked>>
97%
56797
87%
**41
98%
IMR 4451 Enduron
<<locked>>
93%
58392
90%
**44
99%
IMR 4831
<<locked>>
97%
49298
76%
**56
100%
IMR 4895
<<locked>>
87%
58131
89%
**67
100%
[IMR 4955 Enduron]*
<<locked>>
97%
46238
71%
**57
93%
[IMR 7828 SSC]*
<<locked>>
97%
45005
69%
**23
93%
IMR 8208 XBR
<<locked>>
84%
58131
89%
**08
100%
Lovex D073.6
<<locked>>
85%
58160
90%
**12
100%
Lovex S060
<<locked>>
85%
58015
89%
**79
100%
Lovex S062
<<locked>>
88%
57609
89%
**12
100%
Lovex S065
<<locked>>
95%
57508
89%
**28
100%
Lovex S070
<<locked>>
96%
57841
89%
**58
99%
Lovex S071
<<locked>>
97%
35389
54%
**87
95%
Norma 201
<<locked>>
86%
57986
89%
**02
100%
Norma 202
<<locked>>
85%
57725
89%
**92
100%
Norma 203B
<<locked>>
88%
57986
89%
**64
100%
Norma 204
<<locked>>
97%
57479
88%
**90
98%
Norma MRP
<<locked>>
97%
45165
70%
**85
97%
Norma URP
<<locked>>
97%
57348
88%
**90
100%
Ramshot Big Game
<<locked>>
88%
57899
89%
**74
100%
Ramshot Hunter
<<locked>>
97%
55767
86%
**87
99%
[Ramshot Magnum]*
<<locked>>
97%
41075
63%
**38
94%
Ramshot TAC
<<locked>>
84%
58233
90%
**35
100%
Ramshot Wild Boar
<<locked>>
84%
58291
90%
**48
100%
ReloadSwiss RS 14
<<locked>>
96%
34563
53%
**22
100%
ReloadSwiss RS 50
<<locked>>
89%
57986
89%
**35
99%
ReloadSwiss RS 52
<<locked>>
88%
57899
89%
**67
100%
ReloadSwiss RS 60
<<locked>>
94%
58262
90%
**82
100%
ReloadSwiss RS 62 👍
<<locked>>
97%
58436
90%
**33
100%
ReloadSwiss RS 70 👍
<<locked>>
97%
57130
88%
**59
100%
Rottweil R 902
<<locked>>
87%
58349
90%
**95
100%
Rottweil R 903
<<locked>>
92%
58247
90%
**48
100%
Rottweil R 904
<<locked>>
97%
51111
79%
**53
95%
Rottweil R 905
<<locked>>
97%
47398
73%
**46
96%
Rottweil R 907
<<locked>>
93%
57508
88%
**25
98%
SNPE Vectan SP 11
<<locked>>
91%
58218
90%
**87
100%
SNPE Vectan SP 7
<<locked>>
84%
58247
90%
**31
100%
SNPE Vectan SP 9
<<locked>>
86%
58320
90%
**38
100%
SNPE Vectan Tubal 3000
<<locked>>
85%
58131
89%
**20
100%
SNPE Vectan Tubal 5000
<<locked>>
91%
58363
90%
**20
100%
SNPE Vectan Tubal 7000
<<locked>>
95%
58262
90%
**89
99%
Shooters World Long Rifle
<<locked>>
95%
57508
89%
**28
100%
Shooters World Match Rifle
<<locked>>
85%
58160
90%
**12
100%
Shooters World Precision
<<locked>>
88%
57609
89%
**12
100%
Somchem S335
<<locked>>
85%
57624
89%
**17
100%
Somchem S341
<<locked>>
84%
57246
88%
**12
100%
Somchem S355
<<locked>>
91%
57537
89%
**35
100%
[Somchem S361]*
<<locked>>
97%
52330
81%
**36
94%
Somchem S365
<<locked>>
97%
51996
80%
**44
100%
Somchem S385
<<locked>>
97%
48225
74%
**33
97%
Vihtavuori N133
<<locked>>
87%
58262
90%
**07
100%
Vihtavuori N135
<<locked>>
93%
57653
89%
**49
100%
Vihtavuori N140
<<locked>>
87%
57957
89%
**62
100%
Vihtavuori N150
<<locked>>
97%
58305
90%
**02
100%
Vihtavuori N160
<<locked>>
95%
58436
90%
**67
100%
[Vihtavuori N165]*
<<locked>>
97%
40030
62%
**66
94%
Vihtavuori N540
<<locked>>
87%
57928
89%
**99
100%
Vihtavuori N550
<<locked>>
94%
58030
89%
**04
100%
Vihtavuori N555
<<locked>>
97%
44962
69%
**43
99%
[Vihtavuori N560]*
<<locked>>
97%
43120
66%
**13
92%
Winchester 6.5 StaBALL
<<locked>>
96%
58117
89%
**38
100%
Winchester 760
<<locked>>
92%
57464
88%
**04
99%
Winchester StaBALL HD
<<locked>>
97%
35911
55%
**67
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2206H
<<locked>>
81%
51358
79%
**40
100%
ADI AR 2208
<<locked>>
81%
43874
68%
**95
99%
[ADI AR 2209]*
<<locked>>
86%
34548
53%
**54
90%
[ADI AR 2213]*
<<locked>>
94%
39682
61%
**95
90%
Accurate 2200
<<locked>>
81%
53664
83%
**49
100%
Accurate 2495
<<locked>>
81%
53983
83%
**26
100%
Accurate 2700
<<locked>>
81%
42003
65%
**20
95%
[Accurate 3100]*
<<locked>>
83%
26614
41%
**60
90%
Accurate 4064
<<locked>>
81%
45600
70%
**28
100%
Accurate 4350
<<locked>>
81%
34026
52%
**67
96%
Alliant Reloder- TS 15.5
<<locked>>
81%
44034
68%
**25
100%
Alliant Reloder-15
<<locked>>
81%
46746
72%
**80
100%
Alliant Reloder-16
<<locked>>
81%
33982
52%
**80
96%
Alliant Reloder-17
<<locked>>
81%
38174
59%
**15
99%
[Alliant Reloder-19]*
<<locked>>
85%
33388
51%
**38
90%
[Alliant Reloder-22]*
<<locked>>
89%
33373
51%
**80
90%
[Alliant Reloder-23]*
<<locked>>
81%
24714
38%
**38
93%
[Alliant Reloder-25]*
<<locked>>
89%
27978
43%
**36
90%
[Alliant Reloder-26]*
<<locked>>
81%
26020
40%
**13
90%
Baschieri & Pellagri 107
<<locked>>
81%
50691
78%
**53
100%
Hodgdon BL-C2
<<locked>>
81%
54172
83%
**99
100%
Hodgdon CFE223
<<locked>>
81%
45803
70%
**00
99%
Hodgdon H380
<<locked>>
81%
44556
69%
**38
99%
Hodgdon H414
<<locked>>
81%
39537
61%
**85
95%
[Hodgdon H4350]*
<<locked>>
81%
32996
51%
**79
91%
[Hodgdon H4831 SC]*
<<locked>>
92%
40176
62%
**66
90%
Hodgdon Hybrid 100V
<<locked>>
81%
31357
48%
**82
97%
Hodgdon LVR
<<locked>>
81%
36927
57%
**26
97%
[Hodgdon Superperformance]*
<<locked>>
81%
35534
55%
**20
93%
Hodgdon VARGET
<<locked>>
81%
43424
67%
**89
99%
Hodgdon TrailBoss
<<locked>>
92%
32532
50%
**57
100%
IMR 3031
<<locked>>
81%
47892
74%
**71
100%
IMR 4064
<<locked>>
81%
42830
66%
**75
99%
IMR 4166 Enduron
<<locked>>
81%
42337
65%
**39
96%
[IMR 4350]*
<<locked>>
81%
34780
54%
**21
92%
IMR 4451 Enduron
<<locked>>
81%
40625
63%
**33
95%
IMR 4831
<<locked>>
81%
30110
46%
**52
95%
IMR 4895
<<locked>>
81%
48008
74%
**17
100%
[IMR 4955 Enduron]*
<<locked>>
91%
39073
60%
**13
90%
[IMR 7828 SSC]*
<<locked>>
93%
39537
61%
**02
90%
IMR 8208 XBR
<<locked>>
81%
53490
82%
**43
100%
Lovex D073.6
<<locked>>
81%
51198
79%
**17
100%
Lovex S060
<<locked>>
81%
50546
78%
**67
100%
Lovex S062
<<locked>>
81%
45905
71%
**25
100%
Lovex S065
<<locked>>
81%
37956
58%
**80
96%
[Lovex S070]*
<<locked>>
81%
35998
55%
**51
94%
[Lovex S071]*
<<locked>>
88%
26614
41%
**60
90%
Norma 201
<<locked>>
81%
50473
78%
**94
100%
Norma 202
<<locked>>
81%
51053
79%
**97
100%
Norma 203B
<<locked>>
81%
45963
71%
**74
100%
[Norma 204]*
<<locked>>
81%
34084
52%
**38
90%
[Norma MRP]*
<<locked>>
85%
30661
47%
**28
90%
Norma URP
<<locked>>
81%
34229
53%
**67
96%
Ramshot Big Game
<<locked>>
81%
46035
71%
**90
100%
[Ramshot Hunter]*
<<locked>>
81%
33431
51%
**51
94%
[Ramshot Magnum]*
<<locked>>
91%
32967
51%
**48
90%
Ramshot TAC
<<locked>>
81%
53505
82%
**62
99%
Ramshot Wild Boar
<<locked>>
81%
53403
82%
**79
100%
ReloadSwiss RS 14
<<locked>>
87%
30705
47%
**47
100%
ReloadSwiss RS 50
<<locked>>
81%
44599
69%
**15
97%
ReloadSwiss RS 52
<<locked>>
81%
45542
70%
**90
100%
ReloadSwiss RS 60
<<locked>>
81%
37159
57%
**05
100%
ReloadSwiss RS 62
<<locked>>
81%
33707
52%
**84
96%
ReloadSwiss RS 70
<<locked>>
81%
33388
51%
**84
95%
Rottweil R 902
<<locked>>
81%
47892
74%
**44
100%
Rottweil R 903
<<locked>>
81%
41147
63%
**79
100%
[Rottweil R 904]*
<<locked>>
87%
36956
57%
**77
90%
[Rottweil R 905]*
<<locked>>
85%
32808
51%
**31
90%
[Rottweil R 907]*
<<locked>>
81%
39088
60%
**97
94%
SNPE Vectan SP 11
<<locked>>
81%
42264
65%
**28
99%
SNPE Vectan SP 7
<<locked>>
81%
52417
81%
**43
99%
SNPE Vectan SP 9
<<locked>>
81%
49966
77%
**17
100%
SNPE Vectan Tubal 3000
<<locked>>
81%
51126
79%
**28
100%
SNPE Vectan Tubal 5000
<<locked>>
81%
42917
66%
**93
100%
[SNPE Vectan Tubal 7000]*
<<locked>>
81%
37086
57%
**28
94%
Shooters World Long Rifle
<<locked>>
81%
37956
58%
**80
96%
Shooters World Match Rifle
<<locked>>
81%
51198
79%
**17
100%
Shooters World Precision
<<locked>>
81%
45905
71%
**25
100%
Somchem S335
<<locked>>
81%
51111
79%
**35
100%
Somchem S341
<<locked>>
81%
51692
80%
**33
100%
Somchem S355
<<locked>>
81%
41858
64%
**75
99%
[Somchem S361]*
<<locked>>
88%
39755
61%
**07
90%
Somchem S365
<<locked>>
81%
30922
48%
**28
98%
[Somchem S385]*
<<locked>>
83%
30269
47%
**43
90%
Vihtavuori N133
<<locked>>
81%
48776
75%
**72
100%
Vihtavuori N135
<<locked>>
81%
40741
63%
**97
100%
Vihtavuori N140
<<locked>>
81%
47819
74%
**21
100%
Vihtavuori N150
<<locked>>
81%
35868
55%
**34
99%
Vihtavuori N160
<<locked>>
81%
37130
57%
**00
97%
[Vihtavuori N165]*
<<locked>>
89%
31821
49%
**69
90%
Vihtavuori N540
<<locked>>
81%
47007
72%
**35
100%
Vihtavuori N550
<<locked>>
81%
37913
58%
**49
97%
[Vihtavuori N555]*
<<locked>>
81%
26701
41%
**10
93%
[Vihtavuori N560]*
<<locked>>
94%
39566
61%
**31
90%
Winchester 6.5 StaBALL
<<locked>>
81%
35085
54%
**44
99%
Winchester 760
<<locked>>
81%
39537
61%
**85
95%
[Winchester StaBALL HD]*
<<locked>>
82%
22626
35%
**05
90%

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.

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