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Load data for .280 Ackley Improved + .284 | 139gr | Barnes LRX BT

Recommended Powder(s): Hodgdon H414, Hodgdon LVR, ReloadSwiss RS 62, Vihtavuori N550, Winchester 760

.280 Ackley Improved + .284 | 139gr | Barnes LRX BT

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.284 | 139gr | Barnes LRX BT
Manufacturer SKU:
30295
Bullet Weight:
139gr | 9.0g
Bullet Diameter:
0.284" | 7.21mm
Bullet Length:
1.362" | 34.6mm
Caliber:
.280 Ackley Improved load data
Case Length (l3):
2.540" | 64.5mm
Cartridge Length (C.O.L.):
3.280" | 83.3mm
Seated Depth:
0.622" | 15.8mm
Shank Seated Depth:
0.497" | 12.6mm
Case Capacity:
74.0 Grains of Water | 4.80 cm³
Primer Size:
Large Rifle (LR)
Max. allowed Pressure:
64977 psi | 4480 bar
LID:
LID_B561_C285
Last updated:
2025-02-02
Recommended Twist Rate:
1:10 - 1:8

Load data for 216 loads in caliber .280 Ackley Improved with .284 | 139gr | Barnes LRX BT bullet and 108 powders such as Hodgdon H414, Hodgdon LVR, ReloadSwiss RS 62, Vihtavuori N550, Winchester 760. 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".

  • Muzzle velocity vs. barrel length

    Every 1 inch additional barrel length increases muzzle velocity by approx. 32.4 fps

  • 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.

    .

    Loading_icon.gif

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>>
88%
64716
100%
**58
100%
ADI AR 2208
<<locked>>
93%
63875
98%
**38
100%
ADI AR 2209
<<locked>>
97%
49284
76%
**94
95%
[ADI AR 2213]*
<<locked>>
97%
44483
68%
**08
92%
Accurate 2015
<<locked>>
84%
63962
98%
**20
100%
Accurate 2200
<<locked>>
87%
64556
99%
**38
100%
Accurate 2495
<<locked>>
86%
64107
99%
**82
100%
Accurate 2520
<<locked>>
86%
64730
100%
**25
100%
Accurate 2700
<<locked>>
94%
64527
99%
**95
99%
Accurate 3100
<<locked>>
97%
42293
65%
**40
97%
Accurate 4064
<<locked>>
92%
64600
99%
**18
100%
Accurate 4350
<<locked>>
97%
58871
91%
**35
100%
Alliant AR-Comp
<<locked>>
86%
64252
99%
**59
100%
Alliant Reloder- TS 15.5
<<locked>>
93%
64092
99%
**51
100%
Alliant Reloder-15
<<locked>>
91%
64005
99%
**74
100%
Alliant Reloder-16
<<locked>>
97%
55361
85%
**35
100%
Alliant Reloder-17
<<locked>>
96%
64905
100%
**73
100%
Alliant Reloder-19
<<locked>>
97%
48646
75%
**77
95%
[Alliant Reloder-22]*
<<locked>>
97%
42946
66%
**08
94%
Alliant Reloder-23
<<locked>>
97%
40654
63%
**72
99%
[Alliant Reloder-25]*
<<locked>>
97%
35433
55%
**51
94%
Alliant Reloder-26
<<locked>>
97%
45498
70%
**40
99%
Baschieri & Pellagri 107
<<locked>>
88%
64194
99%
**74
100%
Hodgdon BL-C2
<<locked>>
86%
64150
99%
**58
100%
Hodgdon Benchmark
<<locked>>
86%
64353
99%
**82
100%
Hodgdon CFE223
<<locked>>
91%
64803
100%
**17
100%
Hodgdon H322
<<locked>>
85%
64266
99%
**95
100%
Hodgdon H380
<<locked>>
92%
64368
99%
**68
100%
Hodgdon H414 👍
<<locked>>
95%
64716
100%
**40
99%
Hodgdon H4350
<<locked>>
97%
54070
83%
**17
98%
[Hodgdon H4831 SC]*
<<locked>>
97%
46630
72%
**12
92%
Hodgdon Hybrid 100V
<<locked>>
97%
52286
80%
**07
100%
Hodgdon LVR 👍
<<locked>>
97%
62163
96%
**81
100%
Hodgdon Superperformance
<<locked>>
97%
63396
98%
**53
99%
Hodgdon VARGET
<<locked>>
94%
64411
99%
**41
100%
Hodgdon TrailBoss
<<locked>>
97%
34432
53%
**88
100%
IMR 3031
<<locked>>
91%
64600
99%
**28
100%
IMR 4064
<<locked>>
94%
64310
99%
**35
100%
IMR 4166 Enduron
<<locked>>
95%
64803
100%
**31
99%
IMR 4350
<<locked>>
97%
56753
87%
**63
98%
IMR 4451 Enduron
<<locked>>
96%
64658
100%
**58
99%
IMR 4831
<<locked>>
97%
49487
76%
**74
99%
IMR 4895
<<locked>>
90%
64788
100%
**94
100%
[IMR 4955 Enduron]*
<<locked>>
97%
46050
71%
**62
92%
[IMR 7828 SSC]*
<<locked>>
97%
45397
70%
**44
92%
IMR 8208 XBR
<<locked>>
87%
64150
99%
**12
100%
Lovex D073.6
<<locked>>
88%
64150
99%
**22
100%
Lovex S060
<<locked>>
89%
63962
98%
**92
100%
Lovex S062
<<locked>>
92%
64179
99%
**18
100%
Lovex S065
<<locked>>
97%
61859
95%
**12
100%
Lovex S070
<<locked>>
97%
59364
91%
**99
99%
[Lovex S071]*
<<locked>>
97%
35694
55%
**92
94%
Norma 201
<<locked>>
89%
64266
99%
**18
100%
Norma 202
<<locked>>
88%
64252
99%
**02
100%
Norma 203B
<<locked>>
91%
64397
99%
**74
100%
Norma 204
<<locked>>
97%
57580
89%
**12
97%
Norma MRP
<<locked>>
97%
44788
69%
**90
96%
Norma URP
<<locked>>
97%
57769
89%
**28
100%
Ramshot Big Game
<<locked>>
91%
64411
99%
**84
100%
Ramshot Hunter
<<locked>>
97%
56057
86%
**12
99%
[Ramshot Magnum]*
<<locked>>
97%
41379
64%
**46
94%
Ramshot TAC
<<locked>>
87%
64730
100%
**54
100%
Ramshot Wild Boar
<<locked>>
87%
64788
100%
**68
100%
Ramshot X-Terminator
<<locked>>
84%
64440
99%
**15
100%
ReloadSwiss RS 14
<<locked>>
96%
34838
54%
**24
100%
ReloadSwiss RS 40
<<locked>>
84%
64977
100%
**09
100%
ReloadSwiss RS 50
<<locked>>
92%
64353
99%
**51
100%
ReloadSwiss RS 52
<<locked>>
91%
64121
99%
**77
100%
ReloadSwiss RS 60
<<locked>>
97%
63759
98%
**76
100%
ReloadSwiss RS 62 👍
<<locked>>
97%
59045
91%
**71
100%
ReloadSwiss RS 70
<<locked>>
97%
57261
88%
**84
100%
Rottweil R 901
<<locked>>
87%
64310
99%
**76
100%
Rottweil R 902
<<locked>>
91%
64716
100%
**09
100%
Rottweil R 903
<<locked>>
95%
64513
99%
**51
100%
Rottweil R 904
<<locked>>
97%
51488
79%
**74
95%
Rottweil R 905
<<locked>>
97%
47718
73%
**64
95%
Rottweil R 907
<<locked>>
97%
64223
99%
**45
99%
SNPE Vectan SP 11
<<locked>>
94%
63976
98%
**91
100%
SNPE Vectan SP 7
<<locked>>
87%
63947
98%
**31
100%
SNPE Vectan SP 9
<<locked>>
89%
64542
99%
**58
100%
SNPE Vectan Tubal 3000
<<locked>>
88%
64049
99%
**20
100%
SNPE Vectan Tubal 5000
<<locked>>
94%
64687
100%
**13
100%
SNPE Vectan Tubal 7000
<<locked>>
97%
61786
95%
**66
99%
Shooters World Long Rifle
<<locked>>
97%
61859
95%
**12
100%
Shooters World Match Rifle
<<locked>>
88%
64150
99%
**22
100%
Shooters World Precision
<<locked>>
92%
64179
99%
**18
100%
Somchem S321
<<locked>>
84%
64600
99%
**28
100%
Somchem S335
<<locked>>
88%
63730
98%
**20
100%
Somchem S341
<<locked>>
87%
64484
99%
**35
100%
Somchem S355
<<locked>>
95%
64281
99%
**45
100%
[Somchem S361]*
<<locked>>
97%
52591
81%
**58
94%
Somchem S365
<<locked>>
97%
52214
80%
**66
100%
Somchem S385
<<locked>>
97%
48602
75%
**48
96%
Vihtavuori N130
<<locked>>
86%
64614
99%
**90
100%
Vihtavuori N133
<<locked>>
91%
64716
100%
**10
100%
Vihtavuori N135
<<locked>>
97%
64803
100%
**63
100%
Vihtavuori N140
<<locked>>
91%
64034
99%
**66
100%
Vihtavuori N150
<<locked>>
97%
57972
89%
**27
100%
Vihtavuori N160
<<locked>>
97%
63614
98%
**61
100%
[Vihtavuori N165]*
<<locked>>
97%
40466
62%
**84
94%
Vihtavuori N530
<<locked>>
85%
64919
100%
**41
100%
Vihtavuori N540
<<locked>>
91%
64165
99%
**99
100%
Vihtavuori N550 👍
<<locked>>
97%
63701
98%
**07
100%
Vihtavuori N555
<<locked>>
97%
45136
69%
**51
99%
Winchester 6.5 StaBALL
<<locked>>
97%
59712
92%
**86
100%
Winchester 748
<<locked>>
84%
64934
100%
**54
100%
Winchester 760 👍
<<locked>>
95%
64716
100%
**40
99%
Winchester StaBALL HD
<<locked>>
97%
32300
50%
**72
99%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2206H
<<locked>>
81%
51474
79%
**71
100%
ADI AR 2208
<<locked>>
81%
43714
67%
**13
99%
[ADI AR 2209]*
<<locked>>
87%
35810
55%
**89
90%
[ADI AR 2213]*
<<locked>>
94%
40857
63%
**33
90%
Accurate 2015
<<locked>>
81%
57798
89%
**48
100%
Accurate 2200
<<locked>>
81%
53577
82%
**74
100%
Accurate 2495
<<locked>>
81%
53809
83%
**51
100%
Accurate 2520
<<locked>>
81%
54839
84%
**94
100%
[Accurate 2700]*
<<locked>>
81%
42177
65%
**25
94%
[Accurate 3100]*
<<locked>>
84%
27543
42%
**82
90%
Accurate 4064
<<locked>>
81%
45469
70%
**46
100%
Accurate 4350
<<locked>>
81%
34156
53%
**72
96%
Alliant AR-Comp
<<locked>>
81%
55042
85%
**48
100%
Alliant Reloder- TS 15.5
<<locked>>
81%
43758
67%
**36
100%
Alliant Reloder-15
<<locked>>
81%
46862
72%
**08
99%
Alliant Reloder-16
<<locked>>
81%
33939
52%
**89
96%
Alliant Reloder-17
<<locked>>
81%
38043
59%
**23
99%
[Alliant Reloder-19]*
<<locked>>
87%
35346
54%
**89
90%
[Alliant Reloder-22]*
<<locked>>
91%
35027
54%
**21
90%
[Alliant Reloder-23]*
<<locked>>
81%
24642
38%
**23
92%
[Alliant Reloder-25]*
<<locked>>
90%
29153
45%
**64
90%
[Alliant Reloder-26]*
<<locked>>
82%
27311
42%
**57
90%
Baschieri & Pellagri 107
<<locked>>
81%
51169
79%
**81
100%
Hodgdon BL-C2
<<locked>>
81%
54346
84%
**23
100%
Hodgdon Benchmark
<<locked>>
81%
54926
85%
**51
100%
Hodgdon CFE223
<<locked>>
81%
45513
70%
**12
99%
Hodgdon H322
<<locked>>
81%
57058
88%
**97
100%
Hodgdon H380
<<locked>>
81%
44556
69%
**56
98%
Hodgdon H414
<<locked>>
81%
39479
61%
**00
95%
[Hodgdon H4350]*
<<locked>>
81%
32909
51%
**74
91%
[Hodgdon H4831 SC]*
<<locked>>
93%
41365
64%
**03
90%
Hodgdon Hybrid 100V
<<locked>>
81%
31372
48%
**84
97%
Hodgdon LVR
<<locked>>
81%
37159
57%
**31
96%
[Hodgdon Superperformance]*
<<locked>>
81%
35592
55%
**21
92%
Hodgdon VARGET
<<locked>>
81%
43439
67%
**10
99%
Hodgdon TrailBoss
<<locked>>
83%
28050
43%
**50
100%
IMR 3031
<<locked>>
81%
48022
74%
**95
100%
IMR 4064
<<locked>>
81%
42830
66%
**90
99%
IMR 4166 Enduron
<<locked>>
81%
42438
65%
**54
95%
[IMR 4350]*
<<locked>>
81%
34650
53%
**23
92%
IMR 4451 Enduron
<<locked>>
81%
40321
62%
**38
95%
[IMR 4831]*
<<locked>>
81%
29994
46%
**48
94%
IMR 4895
<<locked>>
81%
47979
74%
**35
100%
[IMR 4955 Enduron]*
<<locked>>
92%
40466
62%
**48
90%
[IMR 7828 SSC]*
<<locked>>
94%
40872
63%
**40
90%
IMR 8208 XBR
<<locked>>
81%
53606
83%
**64
100%
Lovex D073.6
<<locked>>
81%
51459
79%
**44
100%
Lovex S060
<<locked>>
81%
50952
78%
**99
100%
Lovex S062
<<locked>>
81%
46180
71%
**53
100%
Lovex S065
<<locked>>
81%
37724
58%
**89
96%
[Lovex S070]*
<<locked>>
81%
36071
56%
**62
94%
[Lovex S071]*
<<locked>>
89%
27804
43%
**82
90%
Norma 201
<<locked>>
81%
50198
77%
**15
100%
Norma 202
<<locked>>
81%
50865
78%
**18
100%
Norma 203B
<<locked>>
81%
46224
71%
**95
100%
[Norma 204]*
<<locked>>
82%
35650
55%
**75
90%
[Norma MRP]*
<<locked>>
87%
31908
49%
**66
90%
Norma URP
<<locked>>
81%
34330
53%
**75
96%
Ramshot Big Game
<<locked>>
81%
46180
71%
**05
99%
[Ramshot Hunter]*
<<locked>>
81%
33344
51%
**56
93%
[Ramshot Magnum]*
<<locked>>
92%
34679
53%
**89
90%
Ramshot TAC
<<locked>>
81%
53635
83%
**90
99%
Ramshot Wild Boar
<<locked>>
81%
53359
82%
**04
100%
Ramshot X-Terminator
<<locked>>
81%
57653
89%
**27
100%
ReloadSwiss RS 14
<<locked>>
81%
27789
43%
**73
100%
ReloadSwiss RS 40
<<locked>>
81%
59988
92%
**43
100%
ReloadSwiss RS 50
<<locked>>
81%
44701
69%
**33
97%
ReloadSwiss RS 52
<<locked>>
81%
45585
70%
**02
100%
ReloadSwiss RS 60
<<locked>>
81%
37028
57%
**10
99%
ReloadSwiss RS 62
<<locked>>
81%
33750
52%
**89
95%
[ReloadSwiss RS 70]*
<<locked>>
81%
33359
51%
**82
94%
Rottweil R 901
<<locked>>
81%
54752
84%
**51
100%
Rottweil R 902
<<locked>>
81%
47935
74%
**59
100%
Rottweil R 903
<<locked>>
81%
41249
63%
**84
99%
[Rottweil R 904]*
<<locked>>
88%
38653
59%
**18
90%
[Rottweil R 905]*
<<locked>>
87%
34287
53%
**75
90%
[Rottweil R 907]*
<<locked>>
81%
38957
60%
**05
94%
SNPE Vectan SP 11
<<locked>>
81%
42322
65%
**36
99%
SNPE Vectan SP 7
<<locked>>
81%
52591
81%
**67
99%
SNPE Vectan SP 9
<<locked>>
81%
49705
76%
**31
100%
SNPE Vectan Tubal 3000
<<locked>>
81%
51416
79%
**56
100%
SNPE Vectan Tubal 5000
<<locked>>
81%
43033
66%
**15
100%
[SNPE Vectan Tubal 7000]*
<<locked>>
81%
37159
57%
**26
94%
Shooters World Long Rifle
<<locked>>
81%
37724
58%
**89
96%
Shooters World Match Rifle
<<locked>>
81%
51459
79%
**44
100%
Shooters World Precision
<<locked>>
81%
46180
71%
**53
100%
Somchem S321
<<locked>>
81%
58769
90%
**56
100%
Somchem S335
<<locked>>
81%
50836
78%
**49
100%
Somchem S341
<<locked>>
81%
52170
80%
**54
100%
Somchem S355
<<locked>>
81%
41611
64%
**87
99%
[Somchem S361]*
<<locked>>
89%
41220
63%
**44
90%
Somchem S365
<<locked>>
81%
30574
47%
**23
98%
[Somchem S385]*
<<locked>>
84%
31778
49%
**84
90%
Vihtavuori N130
<<locked>>
81%
56768
87%
**95
100%
Vihtavuori N133
<<locked>>
81%
48631
75%
**97
100%
Vihtavuori N135
<<locked>>
81%
40712
63%
**12
100%
Vihtavuori N140
<<locked>>
81%
47543
73%
**40
100%
Vihtavuori N150
<<locked>>
81%
35868
55%
**36
99%
Vihtavuori N160
<<locked>>
81%
37434
58%
**18
97%
[Vihtavuori N165]*
<<locked>>
91%
33040
51%
**00
90%
Vihtavuori N530
<<locked>>
81%
56898
88%
**33
100%
Vihtavuori N540
<<locked>>
81%
47021
72%
**59
100%
Vihtavuori N550
<<locked>>
81%
37782
58%
**51
97%
[Vihtavuori N555]*
<<locked>>
81%
26585
41%
**05
93%
Winchester 6.5 StaBALL
<<locked>>
81%
35317
54%
**59
98%
Winchester 748
<<locked>>
81%
58697
90%
**79
100%
Winchester 760
<<locked>>
81%
39479
61%
**00
95%
[Winchester StaBALL HD]*
<<locked>>
84%
23873
37%
**46
91%

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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