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

Recommended Powder(s):

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

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.277 | 140gr | Sierra Tipped GameKing
Manufacturer SKU:
4440
Bullet Weight:
140gr | 9.1g
Bullet Diameter:
0.277" | 7.04mm
Bullet Length:
<<locked>>
Caliber:
.270 Weath. Mag. load data
Case Length (l3):
2.549" | 64.7mm
Cartridge Length (C.O.L.):
<<locked>>
Seated Depth:
<<locked>>
Shank Seated Depth:
<<locked>>
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_B5829_C270
Last updated:
2026-01-21
Recommended Twist Rate:
1:11 - 1:9

Load data for 154 loads in caliber .270 Weath. Mag. with .277 | 140gr | Sierra Tipped GameKing bullet and 77 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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  • 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 2209
<<locked>>
93%
56594
89%
**35
99%
ADI AR 2213
<<locked>>
97%
56797
89%
**74
98%
[ADI AR 2217]*
<<locked>>
97%
41989
66%
**79
94%
ADI AR 2225
<<locked>>
97%
37130
58%
**26
96%
Accurate 2700
<<locked>>
84%
57348
90%
**23
99%
Accurate 3100 👍
<<locked>>
97%
57145
90%
**89
100%
Accurate 4350
<<locked>>
88%
56724
89%
**99
100%
Accurate MAGPRO
<<locked>>
97%
56376
88%
**81
96%
Alliant Reloder-16
<<locked>>
89%
56913
89%
**48
100%
Alliant Reloder-17
<<locked>>
85%
57406
90%
**48
100%
Alliant Reloder-19
<<locked>>
94%
56637
89%
**35
99%
Alliant Reloder-22
<<locked>>
97%
57392
90%
**84
99%
Alliant Reloder-23
<<locked>>
97%
54868
86%
**05
100%
Alliant Reloder-25
<<locked>>
97%
46905
73%
**36
100%
Alliant Reloder-26 👍
<<locked>>
94%
57014
89%
**17
100%
Baschieri & Pellagri 109
<<locked>>
97%
55941
88%
**86
95%
Bofors RP15
<<locked>>
97%
52562
82%
**05
98%
Bofors RP30
<<locked>>
97%
42931
67%
**51
96%
Bofors RP5
<<locked>>
97%
57392
90%
**84
99%
Bofors RP7
<<locked>>
86%
56739
89%
**56
99%
[Hodgdon H1000]*
<<locked>>
97%
41989
66%
**79
94%
Hodgdon H414
<<locked>>
84%
57392
90%
**41
100%
Hodgdon H4350
<<locked>>
91%
56782
89%
**76
99%
Hodgdon H4831
<<locked>>
97%
52939
83%
**53
97%
Hodgdon H4831 SC
<<locked>>
95%
57000
89%
**22
98%
Hodgdon Hybrid 100V
<<locked>>
91%
57261
90%
**72
100%
Hodgdon LVR
<<locked>>
86%
56739
89%
**02
100%
Hodgdon Retumbo
<<locked>>
97%
37130
58%
**26
96%
Hodgdon Superperformance
<<locked>>
87%
57101
89%
**58
100%
Hodgdon VARGET
<<locked>>
83%
57246
90%
**46
100%
Hodgdon TrailBoss
<<locked>>
97%
35404
55%
**44
100%
IMR 4064
<<locked>>
84%
57276
90%
**36
100%
IMR 4166 Enduron
<<locked>>
84%
56550
89%
**33
100%
IMR 4350 👍
<<locked>>
90%
56971
89%
**82
100%
IMR 4451 Enduron
<<locked>>
86%
57276
90%
**69
100%
IMR 4831
<<locked>>
93%
56405
88%
**79
100%
IMR 4955 Enduron
<<locked>>
96%
56637
89%
**76
98%
IMR 7828 SSC
<<locked>>
96%
57334
90%
**97
98%
Lovex S065
<<locked>>
87%
57334
90%
**63
100%
Lovex S070
<<locked>>
88%
56840
89%
**79
100%
Lovex S071
<<locked>>
97%
48037
75%
**41
99%
Norma 204
<<locked>>
89%
56826
89%
**18
99%
[Norma 217]*
<<locked>>
97%
32938
52%
**41
93%
Norma MRP 👍
<<locked>>
95%
56884
89%
**07
100%
Norma URP
<<locked>>
89%
56913
89%
**05
100%
Ramshot Grand
<<locked>>
94%
56927
89%
**00
99%
Ramshot Hunter
<<locked>>
89%
56985
89%
**28
100%
Ramshot Magnum
<<locked>>
97%
55854
88%
**45
99%
ReloadSwiss RS 14
<<locked>>
97%
36158
57%
**86
100%
ReloadSwiss RS 60
<<locked>>
83%
57276
90%
**48
100%
ReloadSwiss RS 62
<<locked>>
88%
57377
90%
**35
100%
ReloadSwiss RS 70
<<locked>>
89%
56927
89%
**77
100%
ReloadSwiss RS 76
<<locked>>
97%
46238
72%
**69
99%
[ReloadSwiss RS 80]*
<<locked>>
97%
41234
65%
**35
93%
Rottweil R 903
<<locked>>
84%
57043
89%
**46
100%
Rottweil R 904
<<locked>>
93%
57377
90%
**92
98%
Rottweil R 905
<<locked>>
94%
56608
89%
**25
99%
Rottweil R 907
<<locked>>
86%
56739
89%
**56
99%
SNPE Vectan Tubal 5000
<<locked>>
83%
56753
89%
**18
100%
SNPE Vectan Tubal 7000
<<locked>>
88%
57188
90%
**23
100%
Shooters World Long Rifle
<<locked>>
87%
57334
90%
**63
100%
Somchem S355
<<locked>>
84%
56695
89%
**40
100%
Somchem S361
<<locked>>
92%
56782
89%
**56
97%
Somchem S365
<<locked>>
90%
56826
89%
**09
100%
Somchem S385 👍
<<locked>>
94%
57377
90%
**09
100%
Vihtavuori N135
<<locked>>
85%
57203
90%
**54
100%
Vihtavuori N150
<<locked>>
89%
56724
89%
**97
100%
Vihtavuori N160
<<locked>>
86%
57174
90%
**69
100%
Vihtavuori N165
<<locked>>
97%
53069
83%
**27
99%
Vihtavuori N550
<<locked>>
86%
57406
90%
**15
100%
Vihtavuori N555
<<locked>>
95%
57363
90%
**41
100%
Vihtavuori N560
<<locked>>
96%
56507
89%
**91
98%
Vihtavuori N565
<<locked>>
97%
49139
77%
**46
96%
[Vihtavuori N568]*
<<locked>>
97%
42786
67%
**58
93%
Winchester 6.5 StaBALL
<<locked>>
88%
56811
89%
**33
100%
Winchester 760
<<locked>>
84%
57392
90%
**41
100%
Winchester StaBALL HD
<<locked>>
97%
50952
80%
**71
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
[ADI AR 2209]*
<<locked>>
81%
37710
59%
**67
94%
[ADI AR 2213]*
<<locked>>
81%
34142
53%
**85
90%
[ADI AR 2217]*
<<locked>>
90%
34113
53%
**82
90%
[ADI AR 2225]*
<<locked>>
89%
28703
45%
**57
90%
Accurate 2700
<<locked>>
81%
51793
81%
**31
99%
Accurate 3100
<<locked>>
81%
33402
52%
**30
96%
Accurate 4350
<<locked>>
81%
45034
71%
**02
100%
[Accurate MAGPRO]*
<<locked>>
85%
37492
59%
**00
90%
Alliant Reloder-16
<<locked>>
81%
43279
68%
**12
100%
Alliant Reloder-17
<<locked>>
81%
49937
78%
**40
100%
[Alliant Reloder-19]*
<<locked>>
81%
37623
59%
**54
94%
[Alliant Reloder-22]*
<<locked>>
81%
33417
52%
**92
92%
Alliant Reloder-23
<<locked>>
81%
32010
50%
**56
99%
[Alliant Reloder-25]*
<<locked>>
81%
28094
44%
**54
93%
Alliant Reloder-26
<<locked>>
81%
34882
55%
**90
98%
[Baschieri & Pellagri 109]*
<<locked>>
87%
41872
66%
**00
90%
[Bofors RP15]*
<<locked>>
81%
31067
49%
**16
91%
[Bofors RP30]*
<<locked>>
88%
31720
50%
**59
90%
[Bofors RP5]*
<<locked>>
81%
33417
52%
**92
92%
Bofors RP7
<<locked>>
81%
48298
76%
**08
98%
[Hodgdon H1000]*
<<locked>>
90%
34113
53%
**82
90%
Hodgdon H414
<<locked>>
81%
51039
80%
**27
99%
Hodgdon H4350
<<locked>>
81%
41452
65%
**94
97%
[Hodgdon H4831]*
<<locked>>
83%
34171
54%
**52
90%
[Hodgdon H4831 SC]*
<<locked>>
81%
35230
55%
**75
91%
Hodgdon Hybrid 100V
<<locked>>
81%
41017
64%
**00
100%
Hodgdon LVR
<<locked>>
81%
47514
74%
**44
100%
[Hodgdon Retumbo]*
<<locked>>
89%
28703
45%
**57
90%
Hodgdon Superperformance
<<locked>>
81%
46137
72%
**67
98%
Hodgdon VARGET
<<locked>>
81%
53142
83%
**90
100%
Hodgdon TrailBoss
<<locked>>
81%
28007
44%
**83
100%
IMR 4064
<<locked>>
81%
52547
82%
**67
100%
IMR 4166 Enduron
<<locked>>
81%
51285
80%
**44
99%
IMR 4350
<<locked>>
81%
43482
68%
**40
97%
IMR 4451 Enduron
<<locked>>
81%
49676
78%
**41
99%
IMR 4831
<<locked>>
81%
39001
61%
**64
99%
[IMR 4955 Enduron]*
<<locked>>
81%
35897
56%
**56
91%
[IMR 7828 SSC]*
<<locked>>
81%
34258
54%
**08
91%
Lovex S065
<<locked>>
81%
46891
73%
**85
99%
Lovex S070
<<locked>>
81%
45295
71%
**69
98%
[Lovex S071]*
<<locked>>
81%
28877
45%
**05
94%
Norma 204
<<locked>>
81%
43439
68%
**69
96%
[Norma 217]*
<<locked>>
92%
28427
45%
**93
90%
Norma MRP
<<locked>>
81%
34896
55%
**57
95%
Norma URP
<<locked>>
81%
44193
69%
**89
100%
[Ramshot Grand]*
<<locked>>
81%
35520
56%
**48
92%
Ramshot Hunter
<<locked>>
81%
43265
68%
**89
99%
[Ramshot Magnum]*
<<locked>>
81%
30676
48%
**03
92%
ReloadSwiss RS 14
<<locked>>
81%
28761
45%
**26
100%
ReloadSwiss RS 60
<<locked>>
81%
52982
83%
**82
100%
ReloadSwiss RS 62
<<locked>>
81%
45179
71%
**25
100%
ReloadSwiss RS 70
<<locked>>
81%
43323
68%
**35
99%
[ReloadSwiss RS 76]*
<<locked>>
84%
28805
45%
**93
90%
[ReloadSwiss RS 80]*
<<locked>>
93%
36158
57%
**03
90%
Rottweil R 903
<<locked>>
81%
52257
82%
**77
100%
[Rottweil R 904]*
<<locked>>
81%
39030
61%
**48
94%
[Rottweil R 905]*
<<locked>>
81%
37072
58%
**48
94%
Rottweil R 907
<<locked>>
81%
48298
76%
**08
98%
SNPE Vectan Tubal 5000
<<locked>>
81%
52779
83%
**59
100%
SNPE Vectan Tubal 7000
<<locked>>
81%
46050
72%
**36
98%
Shooters World Long Rifle
<<locked>>
81%
46891
73%
**85
99%
Somchem S355
<<locked>>
81%
51967
81%
**74
100%
[Somchem S361]*
<<locked>>
81%
39972
63%
**41
93%
Somchem S365
<<locked>>
81%
40930
64%
**49
100%
Somchem S385
<<locked>>
81%
37507
59%
**28
96%
Vihtavuori N135
<<locked>>
81%
50850
80%
**66
100%
Vihtavuori N150
<<locked>>
81%
44918
70%
**13
100%
Vihtavuori N160
<<locked>>
81%
47892
75%
**28
100%
[Vihtavuori N165]*
<<locked>>
81%
31357
49%
**67
92%
Vihtavuori N550
<<locked>>
81%
48269
76%
**71
100%
Vihtavuori N555
<<locked>>
81%
35955
56%
**44
99%
[Vihtavuori N560]*
<<locked>>
81%
33997
53%
**15
90%
[Vihtavuori N565]*
<<locked>>
86%
33736
53%
**92
90%
[Vihtavuori N568]*
<<locked>>
93%
37550
59%
**23
90%
Winchester 6.5 StaBALL
<<locked>>
81%
45063
71%
**49
100%
Winchester 760
<<locked>>
81%
51039
80%
**27
99%
Winchester StaBALL HD
<<locked>>
81%
27079
42%
**52
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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