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Load data for .270 Weath. Mag. + .277 | 140gr | Sierra SBT GameKing

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Recommended Powder(s):

.270 Weath. Mag. + .277 | 140gr | Sierra SBT GameKing

Load Specifications

Bullet:
.277 | 140gr | Sierra SBT GameKing
Manufacturer SKU:
1845
Bullet Weight:
140gr | 9.1g
Bullet Diameter:
0.277" | 7.04mm
Bullet Length:
1.280" | 32.5mm
Caliber:
.270 Weath. Mag.
Case Length (l3):
2.549" | 64.7mm
Cartridge Length (C.O.L.):
3.246" | 82.4mm
Seated Depth:
0.583" | 14.8mm
Shank Seated Depth:
0.443" | 11.3mm
Case Capacity:
82.0 Grains of Water | 5.32 cm³
Primer Size:
Large Rifle Magnum (LRM)
Max. allowed Pressure:
63817 psi | 4400 bar
LID:
LID_B5830_C270

>> Use the Personalized Load Calculator further below to adjust input parameters. 

Load data for 146 loads in caliber .270 Weath. Mag. with .277 | 140gr | Sierra SBT GameKing bullet and 73 powder(s). 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>>
83%
57276
90%
**49
100%
ADI AR 2209
<<locked>>
94%
57232
90%
**48
99%
ADI AR 2213
<<locked>>
97%
56637
89%
**74
98%
[ADI AR 2217]*
<<locked>>
97%
41147
64%
**53
94%
ADI AR 2225
<<locked>>
97%
37014
58%
**13
96%
Accurate 2700
<<locked>>
84%
56913
89%
**13
99%
Accurate 3100 👍
<<locked>>
97%
56826
89%
**86
100%
Accurate 4350
<<locked>>
88%
57246
90%
**12
100%
Accurate MAGPRO
<<locked>>
97%
56289
88%
**81
96%
Alliant Reloder-16
<<locked>>
90%
57406
90%
**61
100%
Alliant Reloder-17
<<locked>>
85%
56594
89%
**38
100%
Alliant Reloder-19
<<locked>>
94%
57246
90%
**38
99%
Alliant Reloder-22
<<locked>>
97%
56449
88%
**64
99%
Alliant Reloder-23
<<locked>>
97%
53548
84%
**92
100%
Alliant Reloder-25
<<locked>>
97%
46717
73%
**33
100%
Alliant Reloder-26 👍
<<locked>>
94%
56826
89%
**20
100%
[Hodgdon H1000]*
<<locked>>
97%
41147
64%
**53
94%
Hodgdon H414
<<locked>>
85%
56927
89%
**31
100%
Hodgdon H4350
<<locked>>
92%
57319
90%
**86
99%
Hodgdon H4831
<<locked>>
97%
52591
82%
**46
97%
Hodgdon H4831 SC
<<locked>>
95%
56971
89%
**12
97%
Hodgdon Hybrid 100V
<<locked>>
92%
57377
90%
**69
100%
Hodgdon LVR
<<locked>>
87%
57276
90%
**12
100%
Hodgdon Retumbo
<<locked>>
97%
37014
58%
**13
96%
Hodgdon Superperformance
<<locked>>
87%
56913
89%
**54
100%
Hodgdon VARGET
<<locked>>
84%
57276
90%
**49
100%
Hodgdon TrailBoss
<<locked>>
97%
35447
56%
**41
100%
IMR 4064
<<locked>>
84%
56971
89%
**40
100%
IMR 4166 Enduron
<<locked>>
85%
57276
90%
**46
100%
IMR 4350
<<locked>>
90%
56840
89%
**79
100%
IMR 4451 Enduron
<<locked>>
86%
56797
89%
**59
100%
IMR 4831
<<locked>>
93%
57000
89%
**92
100%
IMR 4955 Enduron
<<locked>>
96%
57000
89%
**76
98%
IMR 7828 SSC
<<locked>>
96%
57319
90%
**97
98%
Lovex S065
<<locked>>
87%
57145
90%
**56
100%
Lovex S070
<<locked>>
89%
57435
90%
**82
100%
Lovex S071
<<locked>>
97%
47645
75%
**35
99%
Norma 204
<<locked>>
89%
56565
89%
**15
99%
[Norma 217]*
<<locked>>
97%
32793
51%
**25
93%
Norma MRP 👍
<<locked>>
95%
56695
89%
**94
100%
Norma URP
<<locked>>
89%
56565
89%
**99
100%
Ramshot Hunter
<<locked>>
89%
56710
89%
**25
100%
Ramshot Magnum
<<locked>>
97%
55651
87%
**35
99%
ReloadSwiss RS 14
<<locked>>
96%
35607
56%
**73
100%
ReloadSwiss RS 60
<<locked>>
86%
57145
90%
**71
100%
ReloadSwiss RS 62
<<locked>>
88%
57392
90%
**31
100%
ReloadSwiss RS 70
<<locked>>
89%
57116
89%
**77
100%
ReloadSwiss RS 76
<<locked>>
97%
45803
72%
**66
99%
[ReloadSwiss RS 80]*
<<locked>>
97%
40843
64%
**22
92%
Rottweil R 903
<<locked>>
84%
56768
89%
**40
100%
Rottweil R 904
<<locked>>
93%
57000
89%
**86
98%
Rottweil R 905
<<locked>>
94%
56811
89%
**35
99%
Rottweil R 907
<<locked>>
86%
56840
89%
**63
99%
SNPE Vectan SP 11
<<locked>>
83%
57305
90%
**92
100%
SNPE Vectan Tubal 5000
<<locked>>
84%
57290
90%
**25
100%
SNPE Vectan Tubal 7000
<<locked>>
88%
57217
90%
**13
100%
Shooters World Long Rifle
<<locked>>
87%
57145
90%
**56
100%
Somchem S355
<<locked>>
84%
57217
90%
**49
100%
Somchem S361
<<locked>>
92%
57087
89%
**56
97%
Somchem S365
<<locked>>
91%
57116
90%
**05
100%
Somchem S385 👍
<<locked>>
94%
57188
90%
**05
100%
Vihtavuori N135
<<locked>>
85%
56811
89%
**54
100%
Vihtavuori N150
<<locked>>
89%
57246
90%
**07
100%
Vihtavuori N160
<<locked>>
87%
57290
90%
**76
100%
Vihtavuori N165
<<locked>>
97%
52185
82%
**07
99%
Vihtavuori N550
<<locked>>
86%
57217
90%
**12
100%
Vihtavuori N555
<<locked>>
95%
57087
89%
**38
100%
Vihtavuori N560
<<locked>>
97%
56318
88%
**91
98%
Vihtavuori N565
<<locked>>
97%
48834
77%
**30
96%
[Vihtavuori N568]*
<<locked>>
97%
42337
66%
**41
92%
Winchester 6.5 StaBALL
<<locked>>
88%
57159
90%
**36
100%
Winchester 760
<<locked>>
85%
56927
89%
**31
100%
Winchester StaBALL HD 👍
<<locked>>
97%
50517
79%
**71
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2208
<<locked>>
81%
53229
83%
**87
100%
[ADI AR 2209]*
<<locked>>
81%
37376
59%
**54
94%
[ADI AR 2213]*
<<locked>>
81%
33852
53%
**82
90%
[ADI AR 2217]*
<<locked>>
91%
33924
53%
**72
90%
[ADI AR 2225]*
<<locked>>
89%
28543
45%
**51
90%
Accurate 2700
<<locked>>
81%
51605
81%
**25
99%
Accurate 3100
<<locked>>
81%
33156
52%
**20
96%
Accurate 4350
<<locked>>
81%
44614
70%
**92
100%
[Accurate MAGPRO]*
<<locked>>
86%
37826
59%
**07
90%
Alliant Reloder-16
<<locked>>
81%
42960
67%
**02
100%
Alliant Reloder-17
<<locked>>
81%
49226
77%
**30
100%
[Alliant Reloder-19]*
<<locked>>
81%
37275
58%
**54
94%
[Alliant Reloder-22]*
<<locked>>
81%
33098
52%
**79
92%
Alliant Reloder-23
<<locked>>
81%
31763
50%
**56
99%
[Alliant Reloder-25]*
<<locked>>
81%
27746
43%
**34
93%
Alliant Reloder-26
<<locked>>
81%
34592
54%
**84
98%
[Hodgdon H1000]*
<<locked>>
91%
33924
53%
**72
90%
Hodgdon H414
<<locked>>
81%
50676
79%
**17
99%
Hodgdon H4350
<<locked>>
81%
40973
64%
**77
97%
[Hodgdon H4831]*
<<locked>>
84%
34490
54%
**56
90%
[Hodgdon H4831 SC]*
<<locked>>
81%
35027
55%
**69
90%
Hodgdon Hybrid 100V
<<locked>>
81%
40205
63%
**80
100%
Hodgdon LVR
<<locked>>
81%
47224
74%
**48
100%
[Hodgdon Retumbo]*
<<locked>>
89%
28543
45%
**51
90%
Hodgdon Superperformance
<<locked>>
81%
45963
72%
**64
98%
Hodgdon VARGET
<<locked>>
81%
52547
82%
**81
100%
Hodgdon TrailBoss
<<locked>>
81%
27992
44%
**80
100%
IMR 4064
<<locked>>
81%
52214
82%
**58
100%
IMR 4166 Enduron
<<locked>>
81%
50995
80%
**35
99%
IMR 4350
<<locked>>
81%
43120
68%
**30
97%
IMR 4451 Enduron
<<locked>>
81%
49298
77%
**28
99%
IMR 4831
<<locked>>
81%
38696
61%
**61
99%
[IMR 4955 Enduron]*
<<locked>>
81%
35273
55%
**46
91%
[IMR 7828 SSC]*
<<locked>>
81%
34084
53%
**02
90%
Lovex S065
<<locked>>
81%
46615
73%
**76
99%
Lovex S070
<<locked>>
81%
45034
71%
**59
98%
[Lovex S071]*
<<locked>>
81%
28514
45%
**92
93%
Norma 204
<<locked>>
81%
43221
68%
**62
96%
[Norma 217]*
<<locked>>
93%
28660
45%
**00
90%
Norma MRP
<<locked>>
81%
34592
54%
**48
95%
Norma URP
<<locked>>
81%
43903
69%
**79
100%
Ramshot Hunter
<<locked>>
81%
42786
67%
**76
98%
[Ramshot Magnum]*
<<locked>>
81%
30487
48%
**97
91%
ReloadSwiss RS 14
<<locked>>
81%
28790
45%
**26
100%
ReloadSwiss RS 60
<<locked>>
81%
47543
74%
**20
100%
ReloadSwiss RS 62
<<locked>>
81%
44411
70%
**08
100%
ReloadSwiss RS 70
<<locked>>
81%
42743
67%
**22
99%
[ReloadSwiss RS 76]*
<<locked>>
84%
28819
45%
**93
90%
[ReloadSwiss RS 80]*
<<locked>>
94%
36637
57%
**17
90%
Rottweil R 903
<<locked>>
81%
51938
81%
**67
100%
[Rottweil R 904]*
<<locked>>
81%
38783
61%
**38
93%
[Rottweil R 905]*
<<locked>>
81%
36463
57%
**31
94%
Rottweil R 907
<<locked>>
81%
47761
75%
**95
98%
SNPE Vectan SP 11
<<locked>>
81%
53316
84%
**30
100%
SNPE Vectan Tubal 5000
<<locked>>
81%
52460
82%
**59
100%
SNPE Vectan Tubal 7000
<<locked>>
81%
45876
72%
**30
98%
Shooters World Long Rifle
<<locked>>
81%
46615
73%
**76
99%
Somchem S355
<<locked>>
81%
51663
81%
**64
100%
[Somchem S361]*
<<locked>>
81%
39392
62%
**25
93%
Somchem S365
<<locked>>
81%
40611
64%
**40
100%
Somchem S385
<<locked>>
81%
37275
58%
**18
95%
Vihtavuori N135
<<locked>>
81%
50430
79%
**62
100%
Vihtavuori N150
<<locked>>
81%
44585
70%
**03
100%
Vihtavuori N160
<<locked>>
81%
47239
74%
**05
100%
[Vihtavuori N165]*
<<locked>>
81%
31125
49%
**57
92%
Vihtavuori N550
<<locked>>
81%
48008
75%
**64
100%
Vihtavuori N555
<<locked>>
81%
35650
56%
**35
99%
[Vihtavuori N560]*
<<locked>>
82%
34330
54%
**21
90%
[Vihtavuori N565]*
<<locked>>
86%
33359
52%
**92
90%
[Vihtavuori N568]*
<<locked>>
93%
37652
59%
**26
90%
Winchester 6.5 StaBALL
<<locked>>
81%
44411
70%
**40
100%
Winchester 760
<<locked>>
81%
50676
79%
**17
99%
Winchester StaBALL HD
<<locked>>
81%
26643
42%
**49
98%

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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