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Load data for .270 Win. Ackley Improved + .277 | 140gr | Sierra SBT GameKing

Recommended Powder(s): Hodgdon H414, Hodgdon LVR, ReloadSwiss RS 70, Vihtavuori N550, Winchester 760

.270 Win. Ackley Improved + .277 | 140gr | Sierra SBT GameKing

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.277 | 140gr | Sierra SBT GameKing
Manufacturer SKU:
1845
Bullet Weight:
140gr | 9.1g
Bullet Diameter:
0.277" | 7.04mm
Bullet Length:
<<locked>>
Caliber:
.270 Win. Ackley Improved load data
Case Length (l3):
2.540" | 64.5mm
Cartridge Length (C.O.L.):
<<locked>>
Seated Depth:
<<locked>>
Shank Seated Depth:
<<locked>>
Case Capacity:
70.0 Grains of Water | 4.55 cm³
Primer Size:
Large Rifle (LR)
Max. allowed Pressure:
72519 psi | 5000 bar
LID:
LID_B5830_C272
Last updated:
2026-02-12
Recommended Twist Rate:
1:10 - 1:9

Load data for 232 loads in caliber .270 Win. Ackley Improved with .277 | 140gr | Sierra SBT GameKing bullet and 116 powders such as Hodgdon H414, Hodgdon LVR, ReloadSwiss RS 70, 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".

  • No data yet

  • 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 APS 450
<<locked>>
86%
64745
89%
**93
101%
ADI AR 2206H
<<locked>>
86%
64078
88%
**86
100%
ADI AR 2208
<<locked>>
92%
64600
89%
**82
100%
ADI AR 2209
<<locked>>
97%
52301
72%
**90
97%
[ADI AR 2213]*
<<locked>>
97%
47340
65%
**25
94%
Accurate 2015
<<locked>>
83%
65209
90%
**67
100%
Accurate 2200
<<locked>>
85%
64324
89%
**72
100%
Accurate 2495
<<locked>>
85%
64861
89%
**20
100%
Accurate 2520
<<locked>>
84%
64092
88%
**43
100%
Accurate 2700
<<locked>>
92%
64165
88%
**30
99%
Accurate 3100
<<locked>>
97%
45730
63%
**40
98%
Accurate 4064
<<locked>>
90%
64875
89%
**46
100%
Accurate 4350
<<locked>>
97%
62990
87%
**22
100%
Alliant AR-Comp
<<locked>>
84%
64905
89%
**87
100%
Alliant Power Pro 2000-MR
<<locked>>
88%
65238
90%
**20
100%
Alliant Reloder- TS 15.5
<<locked>>
92%
65224
90%
**99
100%
Alliant Reloder-15
<<locked>>
90%
65093
90%
**22
100%
Alliant Reloder-16
<<locked>>
97%
59973
83%
**35
100%
Alliant Reloder-17
<<locked>>
94%
65093
90%
**07
100%
Alliant Reloder-19
<<locked>>
97%
51764
71%
**87
97%
Alliant Reloder-22
<<locked>>
97%
46035
63%
**22
96%
Alliant Reloder-23
<<locked>>
97%
43453
60%
**69
100%
Alliant Reloder-25
<<locked>>
97%
37753
52%
**67
97%
Alliant Reloder-26
<<locked>>
97%
48660
67%
**43
100%
Baschieri & Pellagri 107
<<locked>>
86%
64977
90%
**15
100%
[Bofors RP15]*
<<locked>>
97%
42366
58%
**46
94%
Bofors RP3
<<locked>>
91%
65137
90%
**99
100%
Bofors RP5
<<locked>>
97%
46035
63%
**22
96%
Bofors RP7
<<locked>>
96%
65137
90%
**99
99%
Hodgdon BL-C2
<<locked>>
85%
65151
90%
**05
100%
Hodgdon Benchmark
<<locked>>
85%
64527
89%
**13
100%
Hodgdon CFE223
<<locked>>
89%
65079
90%
**51
100%
Hodgdon H322
<<locked>>
83%
64484
89%
**20
100%
Hodgdon H380
<<locked>>
91%
65151
90%
**18
100%
Hodgdon H414 👍
<<locked>>
94%
65180
90%
**81
100%
Hodgdon H4350
<<locked>>
97%
57246
79%
**07
99%
[Hodgdon H4831]*
<<locked>>
97%
43787
60%
**03
92%
[Hodgdon H4831 SC]*
<<locked>>
97%
49647
68%
**18
94%
Hodgdon H4895
<<locked>>
86%
64977
90%
**99
100%
Hodgdon Hybrid 100V
<<locked>>
96%
55637
77%
**94
100%
Hodgdon LVR 👍
<<locked>>
96%
64992
90%
**54
100%
Hodgdon Superperformance
<<locked>>
96%
64324
89%
**97
100%
Hodgdon VARGET
<<locked>>
92%
64078
88%
**69
100%
Hodgdon TrailBoss
<<locked>>
97%
34824
48%
**52
100%
IMR 3031
<<locked>>
89%
65267
90%
**56
100%
IMR 4064
<<locked>>
93%
64730
89%
**72
100%
IMR 4166 Enduron
<<locked>>
93%
64513
89%
**66
100%
IMR 4350
<<locked>>
97%
60002
83%
**46
99%
IMR 4451 Enduron
<<locked>>
94%
64701
89%
**92
100%
IMR 4831
<<locked>>
97%
52866
73%
**71
100%
IMR 4895
<<locked>>
89%
64672
89%
**18
100%
[IMR 4955 Enduron]*
<<locked>>
96%
48863
67%
**59
94%
[IMR 7828 SSC]*
<<locked>>
97%
48051
66%
**44
94%
IMR 8208 XBR
<<locked>>
85%
64643
89%
**59
100%
Lovex D073.6
<<locked>>
86%
64919
90%
**59
100%
Lovex S060
<<locked>>
88%
65195
90%
**43
100%
Lovex S062
<<locked>>
90%
65137
90%
**59
100%
Lovex S065
<<locked>>
97%
65122
90%
**95
100%
Lovex S070
<<locked>>
97%
62743
87%
**92
100%
Lovex S071
<<locked>>
97%
38464
53%
**95
96%
Norma 201
<<locked>>
87%
64803
89%
**53
100%
Norma 202
<<locked>>
87%
64788
89%
**33
100%
Norma 203B
<<locked>>
90%
64223
89%
**99
100%
Norma 204
<<locked>>
97%
61467
85%
**12
98%
Norma MRP
<<locked>>
97%
48849
67%
**07
98%
Norma URP
<<locked>>
97%
61424
85%
**09
100%
Ramshot Big Game
<<locked>>
89%
64788
89%
**22
100%
Ramshot Grand
<<locked>>
97%
51779
71%
**27
96%
Ramshot Hunter
<<locked>>
97%
59828
82%
**05
100%
Ramshot Magnum
<<locked>>
97%
44295
61%
**66
96%
Ramshot TAC
<<locked>>
85%
64629
89%
**89
100%
Ramshot Wild Boar
<<locked>>
85%
64934
90%
**92
100%
ReloadSwiss RS 14
<<locked>>
97%
35302
49%
**95
100%
ReloadSwiss RS 50
<<locked>>
91%
64905
89%
**95
100%
ReloadSwiss RS 52
<<locked>>
86%
64252
89%
**61
100%
ReloadSwiss RS 60
<<locked>>
92%
64440
89%
**91
100%
ReloadSwiss RS 62
<<locked>>
97%
63063
87%
**51
100%
ReloadSwiss RS 70 👍
<<locked>>
97%
61612
85%
**77
100%
[ReloadSwiss RS 76]*
<<locked>>
97%
36898
51%
**67
93%
Rottweil R 901
<<locked>>
85%
64469
89%
**13
100%
Rottweil R 902
<<locked>>
89%
65151
90%
**49
100%
Rottweil R 903
<<locked>>
93%
64803
89%
**92
100%
Rottweil R 904
<<locked>>
97%
54868
76%
**74
96%
Rottweil R 905
<<locked>>
97%
51053
70%
**67
97%
Rottweil R 907
<<locked>>
96%
65137
90%
**99
99%
SNPE Vectan SP 11
<<locked>>
92%
64730
89%
**25
100%
SNPE Vectan SP 7
<<locked>>
86%
64701
89%
**82
100%
SNPE Vectan SP 9
<<locked>>
87%
64556
89%
**89
100%
SNPE Vectan Tubal 3000
<<locked>>
87%
65108
90%
**71
100%
SNPE Vectan Tubal 5000
<<locked>>
93%
65238
90%
**61
100%
SNPE Vectan Tubal 7000
<<locked>>
97%
65006
90%
**46
100%
Shooters World Long Rifle
<<locked>>
97%
65122
90%
**95
100%
Shooters World Match Rifle
<<locked>>
86%
64919
90%
**59
100%
Shooters World Precision
<<locked>>
90%
65137
90%
**59
100%
Somchem S335
<<locked>>
87%
64165
88%
**61
100%
Somchem S341
<<locked>>
86%
65137
90%
**76
100%
Somchem S355
<<locked>>
93%
64324
89%
**86
100%
Somchem S361
<<locked>>
97%
56231
78%
**64
96%
Somchem S365
<<locked>>
97%
56173
77%
**49
100%
Somchem S385
<<locked>>
97%
51996
72%
**51
98%
Vihtavuori N130
<<locked>>
84%
64513
89%
**18
100%
Vihtavuori N133
<<locked>>
89%
64730
89%
**44
100%
Vihtavuori N135
<<locked>>
95%
65064
90%
**94
100%
Vihtavuori N140
<<locked>>
89%
64788
89%
**04
100%
Vihtavuori N150
<<locked>>
97%
62004
85%
**07
100%
Vihtavuori N160
<<locked>>
96%
64948
90%
**05
100%
Vihtavuori N165
<<locked>>
97%
43192
60%
**84
95%
Vihtavuori N530
<<locked>>
83%
64252
89%
**63
100%
Vihtavuori N540
<<locked>>
89%
65021
90%
**40
100%
Vihtavuori N550 👍
<<locked>>
96%
64672
89%
**54
100%
Vihtavuori N555
<<locked>>
97%
48733
67%
**48
100%
[Vihtavuori N560]*
<<locked>>
97%
45948
63%
**28
93%
Winchester 6.5 StaBALL
<<locked>>
97%
64614
89%
**79
100%
Winchester 760 👍
<<locked>>
94%
65180
90%
**81
100%
Winchester StaBALL HD
<<locked>>
97%
36361
50%
**92
100%
Winchester Supreme 780
<<locked>>
97%
53592
74%
**64
97%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI APS 450
<<locked>>
81%
59480
82%
**15
100%
ADI AR 2206H
<<locked>>
81%
54302
75%
**51
100%
ADI AR 2208
<<locked>>
81%
46108
64%
**97
100%
[ADI AR 2209]*
<<locked>>
83%
33286
46%
**84
90%
[ADI AR 2213]*
<<locked>>
90%
38435
53%
**28
90%
Accurate 2015
<<locked>>
81%
60814
84%
**08
100%
Accurate 2200
<<locked>>
81%
56246
78%
**54
100%
Accurate 2495
<<locked>>
81%
57217
79%
**22
100%
Accurate 2520
<<locked>>
81%
57957
80%
**74
100%
Accurate 2700
<<locked>>
81%
44309
61%
**21
96%
[Accurate 3100]*
<<locked>>
81%
26832
37%
**03
91%
Accurate 4064
<<locked>>
81%
48428
67%
**26
100%
Accurate 4350
<<locked>>
81%
36796
51%
**82
97%
Alliant AR-Comp
<<locked>>
81%
58334
80%
**12
100%
Alliant Power Pro 2000-MR
<<locked>>
81%
50865
70%
**13
100%
Alliant Reloder- TS 15.5
<<locked>>
81%
46441
64%
**23
100%
Alliant Reloder-15
<<locked>>
81%
49632
68%
**95
100%
Alliant Reloder-16
<<locked>>
81%
36071
50%
**92
98%
Alliant Reloder-17
<<locked>>
81%
40886
56%
**23
100%
[Alliant Reloder-19]*
<<locked>>
82%
32619
45%
**67
90%
[Alliant Reloder-22]*
<<locked>>
87%
33127
46%
**16
90%
Alliant Reloder-23
<<locked>>
81%
26295
36%
**33
95%
[Alliant Reloder-25]*
<<locked>>
86%
27456
38%
**65
90%
[Alliant Reloder-26]*
<<locked>>
81%
28094
39%
**38
92%
Baschieri & Pellagri 107
<<locked>>
81%
54085
75%
**61
100%
[Bofors RP15]*
<<locked>>
89%
33272
46%
**23
90%
Bofors RP3
<<locked>>
81%
46572
64%
**33
100%
[Bofors RP5]*
<<locked>>
87%
33127
46%
**16
90%
Bofors RP7
<<locked>>
81%
41205
57%
**02
95%
Hodgdon BL-C2
<<locked>>
81%
57624
79%
**10
100%
Hodgdon Benchmark
<<locked>>
81%
57638
79%
**18
100%
Hodgdon CFE223
<<locked>>
81%
48515
67%
**12
100%
Hodgdon H322
<<locked>>
81%
60075
83%
**71
100%
Hodgdon H380
<<locked>>
81%
47036
65%
**36
99%
Hodgdon H414
<<locked>>
81%
42148
58%
**97
96%
[Hodgdon H4350]*
<<locked>>
81%
34853
48%
**80
93%
[Hodgdon H4831]*
<<locked>>
93%
38856
54%
**98
90%
[Hodgdon H4831 SC]*
<<locked>>
89%
38856
54%
**98
90%
Hodgdon H4895
<<locked>>
81%
54882
76%
**61
100%
Hodgdon Hybrid 100V
<<locked>>
81%
33518
46%
**84
98%
Hodgdon LVR
<<locked>>
81%
39798
55%
**35
98%
[Hodgdon Superperformance]*
<<locked>>
81%
38029
52%
**38
94%
Hodgdon VARGET
<<locked>>
81%
45788
63%
**90
100%
Hodgdon TrailBoss
<<locked>>
86%
29660
41%
**47
100%
IMR 3031
<<locked>>
81%
50807
70%
**69
100%
IMR 4064
<<locked>>
81%
45339
63%
**74
100%
IMR 4166 Enduron
<<locked>>
81%
44541
61%
**38
97%
[IMR 4350]*
<<locked>>
81%
36637
51%
**20
94%
IMR 4451 Enduron
<<locked>>
81%
42583
59%
**31
96%
IMR 4831
<<locked>>
81%
32126
44%
**48
96%
IMR 4895
<<locked>>
81%
50981
70%
**22
100%
[IMR 4955 Enduron]*
<<locked>>
88%
37840
52%
**43
90%
[IMR 7828 SSC]*
<<locked>>
90%
38174
53%
**31
90%
IMR 8208 XBR
<<locked>>
81%
56420
78%
**48
100%
Lovex D073.6
<<locked>>
81%
54447
75%
**22
100%
Lovex S060
<<locked>>
81%
53447
74%
**79
100%
Lovex S062
<<locked>>
81%
48834
67%
**30
100%
Lovex S065
<<locked>>
81%
39987
55%
**82
97%
Lovex S070
<<locked>>
81%
38406
53%
**62
95%
[Lovex S071]*
<<locked>>
85%
26063
36%
**80
90%
Norma 201
<<locked>>
81%
52939
73%
**92
100%
Norma 202
<<locked>>
81%
53606
74%
**89
100%
Norma 203B
<<locked>>
81%
49124
68%
**82
100%
[Norma 204]*
<<locked>>
81%
36274
50%
**39
92%
[Norma MRP]*
<<locked>>
83%
30400
42%
**70
90%
Norma URP
<<locked>>
81%
36825
51%
**79
97%
Ramshot Big Game
<<locked>>
81%
49342
68%
**02
100%
[Ramshot Grand]*
<<locked>>
88%
37188
51%
**15
90%
Ramshot Hunter
<<locked>>
81%
35578
49%
**56
95%
[Ramshot Magnum]*
<<locked>>
88%
32082
44%
**74
90%
Ramshot TAC
<<locked>>
81%
56724
78%
**71
100%
Ramshot Wild Boar
<<locked>>
81%
56768
78%
**84
100%
ReloadSwiss RS 14
<<locked>>
81%
28065
39%
**40
100%
ReloadSwiss RS 50
<<locked>>
81%
47326
65%
**30
98%
ReloadSwiss RS 52
<<locked>>
81%
53766
74%
**10
100%
ReloadSwiss RS 60
<<locked>>
81%
43453
60%
**79
100%
ReloadSwiss RS 62
<<locked>>
81%
36434
50%
**95
97%
ReloadSwiss RS 70
<<locked>>
81%
35810
49%
**98
96%
[ReloadSwiss RS 76]*
<<locked>>
93%
32184
44%
**33
90%
Rottweil R 901
<<locked>>
81%
57421
79%
**22
100%
Rottweil R 902
<<locked>>
81%
50517
70%
**46
100%
Rottweil R 903
<<locked>>
81%
44048
61%
**77
100%
[Rottweil R 904]*
<<locked>>
84%
36085
50%
**10
90%
[Rottweil R 905]*
<<locked>>
83%
31995
44%
**64
90%
Rottweil R 907
<<locked>>
81%
41205
57%
**02
95%
SNPE Vectan SP 11
<<locked>>
81%
45078
62%
**30
100%
SNPE Vectan SP 7
<<locked>>
81%
55521
77%
**51
100%
SNPE Vectan SP 9
<<locked>>
81%
52808
73%
**22
100%
SNPE Vectan Tubal 3000
<<locked>>
81%
53838
74%
**30
100%
SNPE Vectan Tubal 5000
<<locked>>
81%
45252
62%
**92
100%
SNPE Vectan Tubal 7000
<<locked>>
81%
39581
55%
**30
96%
Shooters World Long Rifle
<<locked>>
81%
39987
55%
**82
97%
Shooters World Match Rifle
<<locked>>
81%
54447
75%
**22
100%
Shooters World Precision
<<locked>>
81%
48834
67%
**30
100%
Somchem S335
<<locked>>
81%
53447
74%
**23
100%
Somchem S341
<<locked>>
81%
55129
76%
**41
100%
Somchem S355
<<locked>>
81%
44164
61%
**74
100%
[Somchem S361]*
<<locked>>
85%
38159
53%
**30
90%
Somchem S365
<<locked>>
81%
32938
45%
**33
99%
[Somchem S385]*
<<locked>>
81%
30777
42%
**98
91%
Vihtavuori N130
<<locked>>
81%
59219
82%
**59
100%
Vihtavuori N133
<<locked>>
81%
50807
70%
**64
100%
Vihtavuori N135
<<locked>>
81%
43366
60%
**95
100%
Vihtavuori N140
<<locked>>
81%
50270
69%
**13
100%
Vihtavuori N150
<<locked>>
81%
37985
52%
**26
100%
Vihtavuori N160
<<locked>>
81%
39653
55%
**05
98%
[Vihtavuori N165]*
<<locked>>
87%
31067
43%
**98
90%
Vihtavuori N530
<<locked>>
81%
60133
83%
**07
100%
Vihtavuori N540
<<locked>>
81%
49879
69%
**40
100%
Vihtavuori N550
<<locked>>
81%
40016
55%
**44
98%
Vihtavuori N555
<<locked>>
81%
28790
40%
**15
95%
[Vihtavuori N560]*
<<locked>>
91%
38203
53%
**54
90%
Winchester 6.5 StaBALL
<<locked>>
81%
37449
52%
**52
99%
Winchester 760
<<locked>>
81%
42148
58%
**97
96%
[Winchester StaBALL HD]*
<<locked>>
81%
23250
32%
**83
92%
[Winchester Supreme 780]*
<<locked>>
83%
32909
45%
**51
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.

<<locked>>... you need to buy an access license to unlock the data

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