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Load data for .280 Ackley Improved + .284 | 170gr | SUS-TAC HPT

Recommended Powder(s): Hodgdon H414, Hodgdon Superperformance, ReloadSwiss RS 62, ReloadSwiss RS 70, Winchester 760

.280 Ackley Improved + .284 | 170gr | SUS-TAC HPT

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.284 | 170gr | SUS-TAC HPT
Manufacturer SKU:
H13044
Bullet Weight:
170gr | 11.0g
Bullet Diameter:
0.284" | 7.21mm
Bullet Length:
1.713" | 43.5mm
Caliber:
.280 Ackley Improved load data
Case Length (l3):
2.540" | 64.5mm
Cartridge Length (C.O.L.):
3.280" | 83.3mm
Seated Depth:
0.973" | 24.7mm
Shank Seated Depth:
0.774" | 19.7mm
Case Capacity:
74.0 Grains of Water | 4.80 cm³
Primer Size:
Large Rifle (LR)
Max. allowed Pressure:
64977 psi | 4480 bar
LID:
LID_B10321_C285
Last updated:
2025-01-01
Recommended Twist Rate:
1:7 - 1:6

Load data for 170 loads in caliber .280 Ackley Improved with .284 | 170gr | SUS-TAC HPT bullet and 85 powders such as Hodgdon H414, Hodgdon Superperformance, ReloadSwiss RS 62, ReloadSwiss RS 70, 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".

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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 2208
<<locked>>
88%
57595
89%
**54
100%
ADI AR 2209
<<locked>>
97%
53693
83%
**97
98%
ADI AR 2213
<<locked>>
97%
47718
73%
**21
96%
Accurate 2700
<<locked>>
89%
57551
89%
**21
99%
Accurate 3100
<<locked>>
97%
46978
72%
**59
99%
Accurate 4064
<<locked>>
86%
57812
89%
**28
100%
Accurate 4350
<<locked>>
94%
57493
88%
**20
100%
[Accurate MAGPRO]*
<<locked>>
97%
45121
69%
**08
93%
Alliant Reloder- TS 15.5
<<locked>>
88%
58334
90%
**74
100%
Alliant Reloder-15
<<locked>>
86%
58102
89%
**90
100%
Alliant Reloder-16
<<locked>>
95%
58001
89%
**66
100%
Alliant Reloder-17
<<locked>>
91%
58407
90%
**82
100%
Alliant Reloder-19
<<locked>>
97%
52910
81%
**80
98%
Alliant Reloder-22
<<locked>>
97%
46615
72%
**25
97%
Alliant Reloder-23
<<locked>>
97%
43613
67%
**69
100%
Alliant Reloder-25
<<locked>>
97%
38725
60%
**00
98%
Alliant Reloder-26
<<locked>>
97%
49647
76%
**46
100%
Hodgdon CFE223
<<locked>>
86%
57798
89%
**20
100%
Hodgdon H380
<<locked>>
87%
58349
90%
**90
100%
Hodgdon H414 👍
<<locked>>
90%
58407
90%
**56
100%
Hodgdon H4350
<<locked>>
97%
57232
88%
**84
99%
[Hodgdon H4831]*
<<locked>>
97%
44309
68%
**10
94%
Hodgdon H4831 SC
<<locked>>
97%
50053
77%
**12
95%
Hodgdon Hybrid 100V
<<locked>>
97%
56797
87%
**77
100%
Hodgdon LVR
<<locked>>
92%
58465
90%
**33
100%
Hodgdon Superperformance 👍
<<locked>>
92%
57624
89%
**82
100%
Hodgdon VARGET
<<locked>>
89%
58291
90%
**61
100%
IMR 3031
<<locked>>
85%
57899
89%
**31
100%
IMR 4064
<<locked>>
89%
58131
89%
**51
100%
IMR 4166 Enduron
<<locked>>
89%
58073
89%
**51
100%
IMR 4350
<<locked>>
95%
58276
90%
**00
99%
IMR 4451 Enduron
<<locked>>
91%
58233
90%
**80
100%
IMR 4831
<<locked>>
97%
53287
82%
**51
100%
IMR 4895
<<locked>>
85%
57638
89%
**87
100%
IMR 4955 Enduron
<<locked>>
97%
49690
76%
**72
96%
IMR 7828 SSC
<<locked>>
97%
49168
76%
**61
96%
Lovex S060
<<locked>>
83%
57899
89%
**12
100%
Lovex S062
<<locked>>
86%
58015
89%
**38
100%
Lovex S065
<<locked>>
92%
57696
89%
**64
100%
Lovex S070
<<locked>>
94%
57740
89%
**94
100%
Lovex S071
<<locked>>
97%
38667
60%
**11
97%
Norma 201
<<locked>>
83%
57493
88%
**25
100%
Norma 203B
<<locked>>
86%
57595
89%
**77
100%
Norma 204
<<locked>>
95%
58233
90%
**40
99%
Norma MRP
<<locked>>
97%
49052
75%
**03
99%
Norma URP
<<locked>>
94%
57493
88%
**23
100%
Ramshot Big Game
<<locked>>
85%
57377
88%
**97
100%
Ramshot Hunter
<<locked>>
95%
57899
89%
**53
100%
Ramshot Magnum
<<locked>>
97%
44657
69%
**79
97%
ReloadSwiss RS 50
<<locked>>
87%
57928
89%
**77
100%
ReloadSwiss RS 52
<<locked>>
86%
58407
90%
**00
100%
ReloadSwiss RS 60
<<locked>>
92%
58320
90%
**95
100%
ReloadSwiss RS 62 👍
<<locked>>
94%
57841
89%
**56
100%
ReloadSwiss RS 70 👍
<<locked>>
95%
58088
89%
**05
100%
ReloadSwiss RS 76
<<locked>>
97%
37086
57%
**90
95%
Rottweil R 902
<<locked>>
85%
57769
89%
**18
100%
Rottweil R 903
<<locked>>
89%
57899
89%
**71
100%
Rottweil R 904
<<locked>>
97%
54940
85%
**61
97%
Rottweil R 905
<<locked>>
97%
51982
80%
**71
98%
Rottweil R 907
<<locked>>
91%
57522
89%
**71
99%
SNPE Vectan SP 11
<<locked>>
88%
57682
89%
**00
100%
SNPE Vectan SP 9
<<locked>>
84%
58247
90%
**67
100%
SNPE Vectan Tubal 5000
<<locked>>
89%
58436
90%
**49
100%
SNPE Vectan Tubal 7000
<<locked>>
93%
58276
90%
**35
100%
Shooters World Long Rifle
<<locked>>
92%
57696
89%
**64
100%
Shooters World Precision
<<locked>>
86%
58015
89%
**38
100%
Somchem S335
<<locked>>
83%
58015
89%
**49
100%
Somchem S355
<<locked>>
89%
57551
89%
**64
100%
Somchem S361
<<locked>>
97%
57174
88%
**64
97%
Somchem S365
<<locked>>
97%
57667
89%
**40
100%
Somchem S385
<<locked>>
97%
52431
81%
**41
99%
Vihtavuori N133
<<locked>>
85%
58465
90%
**36
100%
Vihtavuori N135
<<locked>>
90%
57986
89%
**79
100%
Vihtavuori N140
<<locked>>
85%
57827
89%
**92
100%
Vihtavuori N150
<<locked>>
94%
58044
89%
**31
100%
Vihtavuori N160
<<locked>>
92%
57595
89%
**84
100%
Vihtavuori N165
<<locked>>
97%
43468
67%
**90
97%
Vihtavuori N540
<<locked>>
86%
58247
90%
**28
100%
Vihtavuori N550
<<locked>>
92%
57754
89%
**33
100%
Vihtavuori N555
<<locked>>
97%
49124
76%
**41
100%
Vihtavuori N560
<<locked>>
97%
46470
72%
**35
95%
[Vihtavuori N565]*
<<locked>>
97%
39204
60%
**90
93%
Winchester 6.5 StaBALL
<<locked>>
94%
58030
89%
**71
100%
Winchester 760 👍
<<locked>>
90%
58407
90%
**56
100%
Winchester StaBALL HD
<<locked>>
97%
37768
58%
**21
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2208
<<locked>>
81%
46543
72%
**90
100%
[ADI AR 2209]*
<<locked>>
81%
32198
50%
**67
91%
[ADI AR 2213]*
<<locked>>
87%
34447
53%
**39
90%
Accurate 2700
<<locked>>
81%
44831
69%
**28
97%
[Accurate 3100]*
<<locked>>
81%
27470
42%
**56
93%
Accurate 4064
<<locked>>
81%
49168
76%
**13
100%
Accurate 4350
<<locked>>
81%
37594
58%
**98
99%
[Accurate MAGPRO]*
<<locked>>
92%
38377
59%
**70
90%
Alliant Reloder- TS 15.5
<<locked>>
81%
47079
72%
**16
100%
Alliant Reloder-15
<<locked>>
81%
50459
78%
**82
100%
Alliant Reloder-16
<<locked>>
81%
36622
56%
**05
99%
Alliant Reloder-17
<<locked>>
81%
41553
64%
**23
100%
[Alliant Reloder-19]*
<<locked>>
81%
32010
49%
**67
91%
[Alliant Reloder-22]*
<<locked>>
83%
29994
46%
**57
90%
Alliant Reloder-23
<<locked>>
81%
26658
41%
**82
97%
[Alliant Reloder-25]*
<<locked>>
83%
24918
38%
**16
90%
Alliant Reloder-26
<<locked>>
81%
28297
44%
**77
95%
Hodgdon CFE223
<<locked>>
81%
49284
76%
**02
100%
Hodgdon H380
<<locked>>
81%
47906
74%
**43
100%
Hodgdon H414
<<locked>>
81%
42888
66%
**03
98%
[Hodgdon H4350]*
<<locked>>
81%
35505
55%
**03
94%
[Hodgdon H4831]*
<<locked>>
90%
35679
55%
**33
90%
[Hodgdon H4831 SC]*
<<locked>>
86%
35404
54%
**26
90%
Hodgdon Hybrid 100V
<<locked>>
81%
33910
52%
**03
99%
Hodgdon LVR
<<locked>>
81%
40306
62%
**44
99%
Hodgdon Superperformance
<<locked>>
81%
38464
59%
**48
96%
Hodgdon VARGET
<<locked>>
81%
46180
71%
**84
100%
IMR 3031
<<locked>>
81%
51648
79%
**52
100%
IMR 4064
<<locked>>
81%
45876
71%
**70
100%
IMR 4166 Enduron
<<locked>>
81%
45382
70%
**51
98%
IMR 4350
<<locked>>
81%
37231
57%
**39
95%
IMR 4451 Enduron
<<locked>>
81%
43134
66%
**38
97%
IMR 4831
<<locked>>
81%
32851
51%
**80
97%
IMR 4895
<<locked>>
81%
51822
80%
**05
100%
[IMR 4955 Enduron]*
<<locked>>
85%
34214
53%
**67
90%
[IMR 7828 SSC]*
<<locked>>
86%
34563
53%
**56
90%
Lovex S060
<<locked>>
81%
53925
83%
**56
100%
Lovex S062
<<locked>>
81%
49342
76%
**20
100%
Lovex S065
<<locked>>
81%
40437
62%
**88
98%
Lovex S070
<<locked>>
81%
39001
60%
**79
97%
[Lovex S071]*
<<locked>>
81%
23467
36%
**34
90%
Norma 201
<<locked>>
81%
53505
82%
**72
100%
Norma 203B
<<locked>>
81%
49951
77%
**72
100%
[Norma 204]*
<<locked>>
81%
36680
56%
**65
93%
[Norma MRP]*
<<locked>>
81%
28790
44%
**51
91%
Norma URP
<<locked>>
81%
37463
58%
**95
98%
Ramshot Big Game
<<locked>>
81%
49879
77%
**92
100%
Ramshot Hunter
<<locked>>
81%
36245
56%
**79
97%
[Ramshot Magnum]*
<<locked>>
85%
29457
45%
**31
90%
ReloadSwiss RS 50
<<locked>>
81%
47863
74%
**26
99%
ReloadSwiss RS 52
<<locked>>
81%
49371
76%
**82
100%
ReloadSwiss RS 60
<<locked>>
81%
40219
62%
**20
100%
ReloadSwiss RS 62
<<locked>>
81%
37057
57%
**15
98%
ReloadSwiss RS 70
<<locked>>
81%
36085
56%
**18
98%
[ReloadSwiss RS 76]*
<<locked>>
90%
29341
45%
**80
90%
Rottweil R 902
<<locked>>
81%
51024
79%
**26
100%
Rottweil R 903
<<locked>>
81%
44759
69%
**80
100%
[Rottweil R 904]*
<<locked>>
81%
33518
52%
**64
91%
[Rottweil R 905]*
<<locked>>
81%
30574
47%
**44
91%
Rottweil R 907
<<locked>>
81%
41713
64%
**08
97%
SNPE Vectan SP 11
<<locked>>
81%
45600
70%
**26
100%
SNPE Vectan SP 9
<<locked>>
81%
53316
82%
**05
100%
SNPE Vectan Tubal 5000
<<locked>>
81%
46021
71%
**88
100%
SNPE Vectan Tubal 7000
<<locked>>
81%
39856
61%
**39
97%
Shooters World Long Rifle
<<locked>>
81%
40437
62%
**88
98%
Shooters World Precision
<<locked>>
81%
49342
76%
**20
100%
Somchem S335
<<locked>>
81%
54114
83%
**07
100%
Somchem S355
<<locked>>
81%
44701
69%
**70
100%
[Somchem S361]*
<<locked>>
82%
34882
54%
**74
90%
Somchem S365
<<locked>>
81%
33591
52%
**56
100%
[Somchem S385]*
<<locked>>
81%
31386
48%
**44
93%
Vihtavuori N133
<<locked>>
81%
51576
79%
**48
100%
Vihtavuori N135
<<locked>>
81%
43816
67%
**88
100%
Vihtavuori N140
<<locked>>
81%
50850
78%
**97
100%
Vihtavuori N150
<<locked>>
81%
38725
60%
**39
100%
Vihtavuori N160
<<locked>>
81%
40596
62%
**25
99%
[Vihtavuori N165]*
<<locked>>
83%
28021
43%
**46
90%
Vihtavuori N540
<<locked>>
81%
50604
78%
**26
100%
Vihtavuori N550
<<locked>>
81%
40944
63%
**57
99%
Vihtavuori N555
<<locked>>
81%
29327
45%
**51
97%
[Vihtavuori N560]*
<<locked>>
88%
34867
54%
**88
90%
[Vihtavuori N565]*
<<locked>>
92%
33214
51%
**59
90%
Winchester 6.5 StaBALL
<<locked>>
81%
37797
58%
**65
100%
Winchester 760
<<locked>>
81%
42888
66%
**03
98%
Winchester StaBALL HD
<<locked>>
81%
23612
36%
**49
95%

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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