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Load data for .280 Rem. + .284 | 140gr | Sierra SBT GameKing

Recommended Powder(s): Accurate 4350, Alliant Reloder-16, Alliant Reloder-17, Norma URP, Somchem S365

.280 Rem. + .284 | 140gr | Sierra SBT GameKing

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.284 | 140gr | Sierra SBT GameKing
Manufacturer SKU:
1905
Bullet Weight:
140gr | 9.1g
Bullet Diameter:
0.284" | 7.21mm
Bullet Length:
1.160" | 29.5mm
Caliber:
.280 Rem. load data
Case Length (l3):
2.540" | 64.5mm
Cartridge Length (C.O.L.):
3.280" | 83.3mm
Seated Depth:
0.420" | 10.7mm
Shank Seated Depth:
0.280" | 7.1mm
Case Capacity:
67.9 Grains of Water | 4.41 cm³
Primer Size:
Large Rifle (LR)
Max. allowed Pressure:
58740 psi | 4050 bar
LID:
LID_B5841_C289
Last updated:
2025-02-02
Recommended Twist Rate:
1:12 - 1:10

Load data for 158 loads in caliber .280 Rem. with .284 | 140gr | Sierra SBT GameKing bullet and 79 powders such as Accurate 4350, Alliant Reloder-16, Alliant Reloder-17, Norma URP, Somchem S365. 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%
52866
90%
**41
100%
[ADI AR 2209]*
<<locked>>
97%
47616
81%
**28
94%
Accurate 2700
<<locked>>
89%
52359
89%
**85
97%
Accurate 3100
<<locked>>
97%
40509
69%
**71
96%
Accurate 4064
<<locked>>
86%
52156
89%
**25
100%
Accurate 4350 👍
<<locked>>
95%
52127
89%
**07
99%
Alliant Reloder- TS 15.5
<<locked>>
88%
52794
90%
**64
100%
Alliant Reloder-15
<<locked>>
85%
51924
88%
**67
100%
Alliant Reloder-16 👍
<<locked>>
96%
52402
89%
**49
100%
Alliant Reloder-17 👍
<<locked>>
91%
52547
89%
**69
100%
[Alliant Reloder-19]*
<<locked>>
97%
46673
79%
**08
94%
[Alliant Reloder-22]*
<<locked>>
96%
40611
69%
**33
92%
Alliant Reloder-23
<<locked>>
97%
38986
66%
**07
99%
[Alliant Reloder-25]*
<<locked>>
97%
34026
58%
**79
93%
Alliant Reloder-26
<<locked>>
97%
42685
73%
**54
98%
Hodgdon CFE223
<<locked>>
86%
52257
89%
**07
100%
Hodgdon H380
<<locked>>
87%
52634
90%
**71
99%
Hodgdon H414
<<locked>>
90%
52083
89%
**13
98%
Hodgdon H4350
<<locked>>
97%
52185
89%
**54
97%
Hodgdon Hybrid 100V
<<locked>>
97%
50009
85%
**41
100%
Hodgdon LVR
<<locked>>
93%
52779
90%
**07
99%
Hodgdon Superperformance
<<locked>>
93%
52562
89%
**49
97%
Hodgdon VARGET
<<locked>>
88%
52228
89%
**35
100%
Hodgdon TrailBoss
<<locked>>
96%
33852
58%
**49
100%
IMR 3031
<<locked>>
85%
52243
89%
**35
100%
IMR 4064
<<locked>>
89%
52794
90%
**38
100%
IMR 4166 Enduron
<<locked>>
89%
52141
89%
**08
98%
IMR 4350
<<locked>>
95%
52025
89%
**51
97%
IMR 4451 Enduron
<<locked>>
90%
52127
89%
**28
97%
IMR 4831
<<locked>>
97%
47282
81%
**05
99%
IMR 4895
<<locked>>
85%
52286
89%
**81
100%
Lovex S060
<<locked>>
83%
52808
90%
**02
100%
Lovex S062
<<locked>>
86%
52040
89%
**22
100%
Lovex S065
<<locked>>
93%
52141
89%
**38
99%
Lovex S070
<<locked>>
94%
52504
89%
**61
98%
[Lovex S071]*
<<locked>>
97%
33460
57%
**13
93%
Norma 201
<<locked>>
84%
52808
90%
**18
100%
Norma 202
<<locked>>
83%
52692
90%
**18
100%
Norma 203B
<<locked>>
86%
52112
89%
**67
100%
Norma 204
<<locked>>
95%
52794
90%
**04
96%
Norma MRP
<<locked>>
97%
42815
73%
**12
95%
Norma URP 👍
<<locked>>
95%
52634
90%
**13
99%
Ramshot Big Game
<<locked>>
86%
52721
90%
**90
100%
Ramshot Hunter
<<locked>>
96%
52141
89%
**23
98%
[Ramshot Magnum]*
<<locked>>
97%
39102
67%
**61
92%
ReloadSwiss RS 14
<<locked>>
95%
34287
58%
**88
100%
ReloadSwiss RS 50
<<locked>>
87%
52054
89%
**38
98%
ReloadSwiss RS 52
<<locked>>
86%
52591
90%
**90
100%
ReloadSwiss RS 60
<<locked>>
92%
52504
89%
**89
100%
ReloadSwiss RS 62
<<locked>>
95%
52504
89%
**40
99%
ReloadSwiss RS 70
<<locked>>
95%
52083
89%
**72
99%
Rottweil R 902
<<locked>>
85%
52359
89%
**12
100%
Rottweil R 903
<<locked>>
89%
52025
89%
**51
100%
[Rottweil R 904]*
<<locked>>
96%
48907
83%
**92
93%
[Rottweil R 905]*
<<locked>>
97%
45861
78%
**02
94%
Rottweil R 907
<<locked>>
91%
52185
89%
**31
97%
SNPE Vectan SP 11
<<locked>>
88%
52025
89%
**84
100%
SNPE Vectan SP 9
<<locked>>
84%
52547
89%
**44
100%
SNPE Vectan Tubal 5000
<<locked>>
89%
52765
90%
**40
100%
SNPE Vectan Tubal 7000
<<locked>>
92%
52011
89%
**89
97%
Shooters World Long Rifle
<<locked>>
93%
52141
89%
**38
99%
Shooters World Precision
<<locked>>
86%
52040
89%
**22
100%
Somchem S335
<<locked>>
83%
52852
90%
**49
100%
Somchem S355
<<locked>>
89%
52040
89%
**51
100%
[Somchem S361]*
<<locked>>
97%
50763
86%
**95
93%
Somchem S365 👍
<<locked>>
97%
49951
85%
**10
100%
Somchem S385
<<locked>>
96%
45774
78%
**72
95%
Vihtavuori N133
<<locked>>
85%
52489
89%
**23
100%
Vihtavuori N135
<<locked>>
91%
52330
89%
**76
100%
Vihtavuori N140
<<locked>>
85%
52707
90%
**85
100%
Vihtavuori N150
<<locked>>
95%
52750
90%
**25
100%
Vihtavuori N160
<<locked>>
93%
52837
90%
**74
99%
[Vihtavuori N165]*
<<locked>>
97%
38812
66%
**15
92%
Vihtavuori N540
<<locked>>
85%
52243
89%
**15
100%
Vihtavuori N550
<<locked>>
92%
52040
89%
**00
99%
Vihtavuori N555
<<locked>>
97%
43033
73%
**85
99%
Winchester 6.5 StaBALL
<<locked>>
94%
52127
89%
**44
100%
Winchester 760
<<locked>>
90%
52083
89%
**13
98%
Winchester StaBALL HD
<<locked>>
97%
34548
59%
**03
99%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2208
<<locked>>
81%
42163
72%
**51
98%
[ADI AR 2209]*
<<locked>>
89%
37318
64%
**98
90%
[Accurate 2700]*
<<locked>>
81%
40582
69%
**69
94%
[Accurate 3100]*
<<locked>>
87%
28848
49%
**92
90%
Accurate 4064
<<locked>>
81%
43758
74%
**87
100%
Accurate 4350
<<locked>>
81%
32532
55%
**07
95%
Alliant Reloder- TS 15.5
<<locked>>
81%
42090
72%
**77
99%
Alliant Reloder-15
<<locked>>
81%
45136
77%
**40
99%
Alliant Reloder-16
<<locked>>
81%
32619
56%
**20
95%
Alliant Reloder-17
<<locked>>
81%
36767
63%
**57
98%
[Alliant Reloder-19]*
<<locked>>
89%
36143
62%
**75
90%
[Alliant Reloder-22]*
<<locked>>
93%
35897
61%
**15
90%
[Alliant Reloder-23]*
<<locked>>
81%
23627
40%
**54
90%
[Alliant Reloder-25]*
<<locked>>
92%
29892
51%
**51
90%
[Alliant Reloder-26]*
<<locked>>
84%
27934
48%
**48
90%
Hodgdon CFE223
<<locked>>
81%
43787
75%
**49
98%
Hodgdon H380
<<locked>>
81%
42685
73%
**84
97%
[Hodgdon H414]*
<<locked>>
81%
37869
64%
**31
94%
[Hodgdon H4350]*
<<locked>>
82%
32721
56%
**48
90%
Hodgdon Hybrid 100V
<<locked>>
81%
30008
51%
**25
96%
Hodgdon LVR
<<locked>>
81%
35737
61%
**69
95%
[Hodgdon Superperformance]*
<<locked>>
81%
33939
58%
**49
91%
Hodgdon VARGET
<<locked>>
81%
41872
71%
**48
98%
Hodgdon TrailBoss
<<locked>>
84%
28660
49%
**40
100%
IMR 3031
<<locked>>
81%
45977
78%
**40
100%
IMR 4064
<<locked>>
81%
41350
70%
**28
98%
IMR 4166 Enduron
<<locked>>
81%
40944
70%
**89
95%
[IMR 4350]*
<<locked>>
81%
33301
57%
**61
91%
[IMR 4451 Enduron]*
<<locked>>
81%
38972
66%
**79
94%
[IMR 4831]*
<<locked>>
81%
28529
49%
**82
93%
IMR 4895
<<locked>>
81%
46354
79%
**76
99%
Lovex S060
<<locked>>
81%
49356
84%
**40
100%
Lovex S062
<<locked>>
81%
44483
76%
**90
100%
Lovex S065
<<locked>>
81%
36318
62%
**23
95%
[Lovex S070]*
<<locked>>
81%
34737
59%
**00
92%
[Lovex S071]*
<<locked>>
92%
28848
49%
**92
90%
Norma 201
<<locked>>
81%
48457
83%
**56
100%
Norma 202
<<locked>>
81%
49110
84%
**56
100%
Norma 203B
<<locked>>
81%
44643
76%
**30
99%
[Norma 204]*
<<locked>>
84%
36448
62%
**69
90%
[Norma MRP]*
<<locked>>
89%
32938
56%
**69
90%
Norma URP
<<locked>>
81%
32895
56%
**13
95%
Ramshot Big Game
<<locked>>
81%
44309
75%
**43
99%
[Ramshot Hunter]*
<<locked>>
81%
32053
55%
**93
92%
[Ramshot Magnum]*
<<locked>>
94%
35636
61%
**75
90%
ReloadSwiss RS 14
<<locked>>
81%
27731
47%
**47
100%
ReloadSwiss RS 50
<<locked>>
81%
43207
74%
**77
96%
ReloadSwiss RS 52
<<locked>>
81%
43918
75%
**49
100%
ReloadSwiss RS 60
<<locked>>
81%
35694
61%
**41
99%
[ReloadSwiss RS 62]*
<<locked>>
81%
32314
55%
**20
94%
[ReloadSwiss RS 70]*
<<locked>>
81%
32039
55%
**20
93%
Rottweil R 902
<<locked>>
81%
46180
79%
**07
100%
Rottweil R 903
<<locked>>
81%
39624
67%
**31
99%
[Rottweil R 904]*
<<locked>>
90%
39682
68%
**12
90%
[Rottweil R 905]*
<<locked>>
89%
35534
60%
**75
90%
[Rottweil R 907]*
<<locked>>
81%
37565
64%
**43
93%
SNPE Vectan SP 11
<<locked>>
81%
40669
69%
**80
99%
SNPE Vectan SP 9
<<locked>>
81%
48312
82%
**76
100%
SNPE Vectan Tubal 5000
<<locked>>
81%
41901
71%
**72
100%
[SNPE Vectan Tubal 7000]*
<<locked>>
81%
35940
61%
**70
93%
Shooters World Long Rifle
<<locked>>
81%
36318
62%
**23
95%
Shooters World Precision
<<locked>>
81%
44483
76%
**90
100%
Somchem S335
<<locked>>
81%
49327
84%
**97
100%
Somchem S355
<<locked>>
81%
40001
68%
**25
99%
[Somchem S361]*
<<locked>>
92%
42772
73%
**41
90%
Somchem S365
<<locked>>
81%
29298
50%
**57
97%
[Somchem S385]*
<<locked>>
86%
32692
56%
**80
90%
Vihtavuori N133
<<locked>>
81%
47210
80%
**44
100%
Vihtavuori N135
<<locked>>
81%
39218
67%
**59
100%
Vihtavuori N140
<<locked>>
81%
45861
78%
**84
100%
Vihtavuori N150
<<locked>>
81%
34360
59%
**77
99%
Vihtavuori N160
<<locked>>
81%
35592
61%
**43
96%
[Vihtavuori N165]*
<<locked>>
93%
34316
58%
**07
90%
Vihtavuori N540
<<locked>>
81%
45527
78%
**00
100%
Vihtavuori N550
<<locked>>
81%
35940
61%
**82
96%
[Vihtavuori N555]*
<<locked>>
81%
25324
43%
**36
91%
Winchester 6.5 StaBALL
<<locked>>
81%
34055
58%
**97
98%
[Winchester 760]*
<<locked>>
81%
37869
64%
**31
94%
[Winchester StaBALL HD]*
<<locked>>
86%
24294
41%
**29
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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