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Load data for .280 Ackley Improved + .284 | 185gr | Nosler RDF HPBT

Recommended Powder(s): ADI AR 2209, Alliant Reloder-19, Alliant Reloder-26, Norma MRP, Rottweil R 905

.280 Ackley Improved + .284 | 185gr | Nosler RDF HPBT

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.284 | 185gr | Nosler RDF HPBT
Manufacturer SKU:
53432
Bullet Weight:
185gr | 12.0g
Bullet Diameter:
0.284" | 7.21mm
Bullet Length:
1.514" | 38.5mm
Caliber:
.280 Ackley Improved load data
Case Length (l3):
2.540" | 64.5mm
Cartridge Length (C.O.L.):
3.280" | 83.3mm
Seated Depth:
0.774" | 19.7mm
Shank Seated Depth:
0.624" | 15.9mm
Case Capacity:
74.0 Grains of Water | 4.80 cm³
Primer Size:
Large Rifle (LR)
Max. allowed Pressure:
64977 psi | 4480 bar
LID:
LID_B4074_C285
Last updated:
2025-01-01
Recommended Twist Rate:
1:9 - 1:8

Load data for 148 loads in caliber .280 Ackley Improved with .284 | 185gr | Nosler RDF HPBT bullet and 74 powders such as ADI AR 2209, Alliant Reloder-19, Alliant Reloder-26, Norma MRP, Rottweil R 905. 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 2208
<<locked>>
85%
58001
89%
**66
100%
ADI AR 2209 👍
<<locked>>
96%
57928
89%
**71
100%
ADI AR 2213
<<locked>>
97%
54462
84%
**57
98%
ADI AR 2217
<<locked>>
97%
39639
61%
**92
95%
ADI AR 2225
<<locked>>
97%
34896
54%
**49
97%
Accurate 2700
<<locked>>
86%
57870
89%
**46
100%
Accurate 3100
<<locked>>
97%
53548
82%
**69
100%
Accurate 4350
<<locked>>
90%
58407
90%
**38
100%
Accurate MAGPRO
<<locked>>
97%
52634
81%
**51
97%
Alliant Reloder- TS 15.5
<<locked>>
84%
57928
89%
**72
100%
Alliant Reloder-16
<<locked>>
91%
57870
89%
**71
100%
Alliant Reloder-17
<<locked>>
87%
57711
89%
**71
100%
Alliant Reloder-19 👍
<<locked>>
96%
58262
90%
**74
100%
Alliant Reloder-22
<<locked>>
97%
53737
83%
**51
99%
Alliant Reloder-23
<<locked>>
97%
50546
78%
**72
100%
Alliant Reloder-25
<<locked>>
97%
43888
68%
**20
100%
Alliant Reloder-26 👍
<<locked>>
96%
57261
88%
**46
100%
Hodgdon H1000
<<locked>>
97%
39639
61%
**92
95%
Hodgdon H380
<<locked>>
84%
58218
90%
**95
100%
Hodgdon H414
<<locked>>
86%
57595
89%
**48
100%
Hodgdon H4350
<<locked>>
93%
58001
89%
**08
100%
Hodgdon H4831
<<locked>>
97%
49980
77%
**36
97%
Hodgdon H4831 SC
<<locked>>
97%
57188
88%
**38
98%
Hodgdon Hybrid 100V
<<locked>>
93%
57798
89%
**89
100%
Hodgdon LVR
<<locked>>
89%
57957
89%
**28
100%
Hodgdon Retumbo
<<locked>>
97%
34896
54%
**49
97%
Hodgdon Superperformance
<<locked>>
89%
58291
90%
**00
100%
Hodgdon VARGET
<<locked>>
85%
57348
88%
**59
100%
IMR 4064
<<locked>>
85%
58044
89%
**56
100%
IMR 4166 Enduron
<<locked>>
87%
58450
90%
**69
100%
IMR 4350
<<locked>>
92%
58363
90%
**12
100%
IMR 4451 Enduron
<<locked>>
87%
58233
90%
**95
100%
IMR 4831
<<locked>>
96%
58436
90%
**28
100%
IMR 4955 Enduron
<<locked>>
97%
55042
85%
**79
98%
IMR 7828 SSC
<<locked>>
97%
55521
85%
**90
99%
Lovex S065
<<locked>>
89%
57450
88%
**79
100%
Lovex S070
<<locked>>
90%
58001
89%
**05
100%
Lovex S071
<<locked>>
96%
44686
69%
**38
99%
Norma 204
<<locked>>
91%
57943
89%
**48
99%
[Norma 217]*
<<locked>>
97%
31009
48%
**83
94%
Norma MRP 👍
<<locked>>
96%
56347
87%
**17
100%
Norma URP
<<locked>>
91%
58073
89%
**38
100%
Ramshot Hunter
<<locked>>
92%
57972
89%
**57
100%
Ramshot Magnum
<<locked>>
97%
52170
80%
**18
100%
ReloadSwiss RS 50
<<locked>>
84%
57667
89%
**82
100%
ReloadSwiss RS 60
<<locked>>
88%
57711
89%
**87
100%
ReloadSwiss RS 62
<<locked>>
90%
58291
90%
**57
100%
ReloadSwiss RS 70
<<locked>>
91%
57798
89%
**03
100%
ReloadSwiss RS 76
<<locked>>
97%
42409
65%
**49
99%
[ReloadSwiss RS 80]*
<<locked>>
97%
38189
59%
**44
93%
Rottweil R 903
<<locked>>
85%
57740
89%
**72
100%
Rottweil R 904
<<locked>>
95%
58088
89%
**25
99%
Rottweil R 905 👍
<<locked>>
96%
58189
90%
**74
100%
Rottweil R 907
<<locked>>
88%
58131
89%
**92
100%
SNPE Vectan SP 11
<<locked>>
85%
57885
89%
**08
100%
SNPE Vectan Tubal 5000
<<locked>>
85%
57392
88%
**41
100%
SNPE Vectan Tubal 7000
<<locked>>
89%
57580
89%
**39
100%
Shooters World Long Rifle
<<locked>>
89%
57450
88%
**79
100%
Somchem S355
<<locked>>
86%
57624
89%
**69
100%
Somchem S361
<<locked>>
94%
57870
89%
**95
98%
Somchem S365
<<locked>>
93%
57914
89%
**35
100%
Somchem S385
<<locked>>
96%
57740
89%
**28
100%
Vihtavuori N135
<<locked>>
87%
58218
90%
**84
100%
Vihtavuori N150
<<locked>>
91%
57914
89%
**33
100%
Vihtavuori N160
<<locked>>
88%
58044
89%
**95
100%
Vihtavuori N165
<<locked>>
97%
50038
77%
**16
99%
Vihtavuori N550
<<locked>>
88%
57827
89%
**35
100%
Vihtavuori N555
<<locked>>
97%
57072
88%
**51
100%
Vihtavuori N560
<<locked>>
97%
53983
83%
**74
98%
Vihtavuori N565
<<locked>>
97%
45701
70%
**33
97%
[Vihtavuori N568]*
<<locked>>
97%
39421
61%
**51
93%
Winchester 6.5 StaBALL
<<locked>>
90%
58131
89%
**72
100%
Winchester 760
<<locked>>
86%
57595
89%
**48
100%
Winchester StaBALL HD
<<locked>>
97%
46456
72%
**41
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2208
<<locked>>
81%
51430
79%
**77
100%
ADI AR 2209
<<locked>>
81%
35969
55%
**97
95%
[ADI AR 2213]*
<<locked>>
81%
32039
49%
**21
91%
[ADI AR 2217]*
<<locked>>
89%
31111
48%
**85
90%
[ADI AR 2225]*
<<locked>>
86%
25556
39%
**77
90%
Accurate 2700
<<locked>>
81%
49661
76%
**34
99%
Accurate 3100
<<locked>>
81%
31705
49%
**78
97%
Accurate 4350
<<locked>>
81%
42931
66%
**11
100%
[Accurate MAGPRO]*
<<locked>>
85%
34505
53%
**06
90%
Alliant Reloder- TS 15.5
<<locked>>
81%
52373
81%
**00
100%
Alliant Reloder-16
<<locked>>
81%
41263
64%
**15
100%
Alliant Reloder-17
<<locked>>
81%
47398
73%
**30
100%
Alliant Reloder-19
<<locked>>
81%
35969
55%
**93
95%
[Alliant Reloder-22]*
<<locked>>
81%
31662
49%
**31
93%
Alliant Reloder-23
<<locked>>
81%
30618
47%
**15
99%
[Alliant Reloder-25]*
<<locked>>
81%
26716
41%
**16
94%
Alliant Reloder-26
<<locked>>
81%
32895
51%
**26
98%
[Hodgdon H1000]*
<<locked>>
89%
31111
48%
**85
90%
Hodgdon H380
<<locked>>
81%
53679
83%
**39
100%
Hodgdon H414
<<locked>>
81%
48414
74%
**20
99%
Hodgdon H4350
<<locked>>
81%
39987
62%
**16
97%
[Hodgdon H4831]*
<<locked>>
82%
31082
48%
**59
90%
[Hodgdon H4831 SC]*
<<locked>>
81%
33547
52%
**15
91%
Hodgdon Hybrid 100V
<<locked>>
81%
38725
60%
**13
100%
Hodgdon LVR
<<locked>>
81%
45513
70%
**54
100%
[Hodgdon Retumbo]*
<<locked>>
86%
25556
39%
**77
90%
Hodgdon Superperformance
<<locked>>
81%
43772
67%
**77
99%
Hodgdon VARGET
<<locked>>
81%
51068
79%
**70
100%
IMR 4064
<<locked>>
81%
50604
78%
**54
100%
IMR 4166 Enduron
<<locked>>
81%
49371
76%
**41
99%
IMR 4350
<<locked>>
81%
41713
64%
**56
98%
IMR 4451 Enduron
<<locked>>
81%
47558
73%
**38
99%
IMR 4831
<<locked>>
81%
37159
57%
**90
99%
[IMR 4955 Enduron]*
<<locked>>
81%
34287
53%
**01
92%
[IMR 7828 SSC]*
<<locked>>
81%
32663
50%
**47
92%
Lovex S065
<<locked>>
81%
45455
70%
**98
100%
Lovex S070
<<locked>>
81%
43497
67%
**88
99%
[Lovex S071]*
<<locked>>
81%
27311
42%
**70
94%
Norma 204
<<locked>>
81%
41510
64%
**88
97%
[Norma 217]*
<<locked>>
91%
25730
40%
**19
90%
Norma MRP
<<locked>>
81%
32909
51%
**90
96%
Norma URP
<<locked>>
81%
42351
65%
**98
100%
Ramshot Hunter
<<locked>>
81%
41133
63%
**95
99%
[Ramshot Magnum]*
<<locked>>
81%
29124
45%
**62
93%
ReloadSwiss RS 50
<<locked>>
81%
53171
82%
**20
100%
ReloadSwiss RS 60
<<locked>>
81%
45672
70%
**20
100%
ReloadSwiss RS 62
<<locked>>
81%
42554
65%
**31
100%
ReloadSwiss RS 70
<<locked>>
81%
41176
63%
**48
100%
[ReloadSwiss RS 76]*
<<locked>>
83%
26295
40%
**23
90%
[ReloadSwiss RS 80]*
<<locked>>
93%
33257
51%
**23
90%
Rottweil R 903
<<locked>>
81%
50125
77%
**70
100%
[Rottweil R 904]*
<<locked>>
81%
37536
58%
**80
94%
Rottweil R 905
<<locked>>
81%
35172
54%
**80
95%
Rottweil R 907
<<locked>>
81%
46572
72%
**21
99%
SNPE Vectan SP 11
<<locked>>
81%
51314
79%
**20
100%
SNPE Vectan Tubal 5000
<<locked>>
81%
50995
78%
**65
100%
SNPE Vectan Tubal 7000
<<locked>>
81%
44483
68%
**49
99%
Shooters World Long Rifle
<<locked>>
81%
45455
70%
**98
100%
Somchem S355
<<locked>>
81%
50328
77%
**67
100%
[Somchem S361]*
<<locked>>
81%
38116
59%
**70
93%
Somchem S365
<<locked>>
81%
38653
59%
**59
100%
Somchem S385
<<locked>>
81%
35607
55%
**60
96%
Vihtavuori N135
<<locked>>
81%
48921
75%
**65
100%
Vihtavuori N150
<<locked>>
81%
43062
66%
**23
100%
Vihtavuori N160
<<locked>>
81%
45426
70%
**25
100%
[Vihtavuori N165]*
<<locked>>
81%
30081
46%
**29
93%
Vihtavuori N550
<<locked>>
81%
46253
71%
**64
100%
Vihtavuori N555
<<locked>>
81%
34040
52%
**77
99%
[Vihtavuori N560]*
<<locked>>
81%
32068
49%
**47
91%
[Vihtavuori N565]*
<<locked>>
84%
29791
46%
**95
90%
[Vihtavuori N568]*
<<locked>>
92%
34476
53%
**33
90%
Winchester 6.5 StaBALL
<<locked>>
81%
42757
66%
**65
100%
Winchester 760
<<locked>>
81%
48414
74%
**20
99%
Winchester StaBALL HD
<<locked>>
81%
24932
38%
**15
99%

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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