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Load data for .270 Weath. Mag. + .277 | 140gr | Winchester FailSafe

Recommended Powder(s): ADI AR 2209, Alliant Reloder-19, Alliant Reloder-26, Norma MRP, Rottweil R 905

.270 Weath. Mag. + .277 | 140gr | Winchester FailSafe

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.277 | 140gr | Winchester FailSafe
Bullet Weight:
140gr | 9.1g
Bullet Diameter:
0.277" | 7.04mm
Bullet Length:
1.200" | 30.5mm
Caliber:
.270 Weath. Mag. load data
Case Length (l3):
2.549" | 64.7mm
Cartridge Length (C.O.L.):
3.246" | 82.4mm
Seated Depth:
0.503" | 12.8mm
Shank Seated Depth:
0.503" | 12.8mm
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_B6620_C270
Last updated:
2025-01-01

Load data for 138 loads in caliber .270 Weath. Mag. with .277 | 140gr | Winchester FailSafe bullet and 69 powders such as ADI AR 2209, Alliant Reloder-19, Alliant Reloder-26, Norma MRP, Rottweil R 905. 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%
56797
89%
**38
99%
ADI AR 2213
<<locked>>
96%
57217
90%
**71
98%
ADI AR 2217
<<locked>>
97%
42931
67%
**99
95%
ADI AR 2225
<<locked>>
97%
38116
60%
**40
97%
Accurate 2700
<<locked>>
84%
57072
89%
**10
99%
Accurate 3100
<<locked>>
96%
56913
89%
**79
100%
Accurate 4350
<<locked>>
87%
57217
90%
**05
100%
Accurate MAGPRO
<<locked>>
97%
57159
90%
**94
97%
Alliant Reloder-16
<<locked>>
89%
56608
89%
**38
100%
Alliant Reloder-17
<<locked>>
84%
57290
90%
**51
100%
Alliant Reloder-19 👍
<<locked>>
93%
57000
89%
**31
99%
Alliant Reloder-22
<<locked>>
96%
57087
89%
**77
99%
Alliant Reloder-23
<<locked>>
97%
55100
86%
**09
100%
Alliant Reloder-25
<<locked>>
97%
48080
75%
**56
100%
Alliant Reloder-26 👍
<<locked>>
93%
56695
89%
**10
100%
Hodgdon H1000
<<locked>>
97%
42931
67%
**99
95%
Hodgdon H414
<<locked>>
84%
57290
90%
**31
100%
Hodgdon H4350
<<locked>>
91%
56956
89%
**76
99%
Hodgdon H4831
<<locked>>
97%
53853
84%
**63
97%
Hodgdon H4831 SC
<<locked>>
95%
57232
90%
**15
98%
Hodgdon Hybrid 100V
<<locked>>
91%
57130
90%
**63
100%
Hodgdon LVR
<<locked>>
86%
56884
89%
**05
100%
Hodgdon Retumbo
<<locked>>
97%
38116
60%
**40
97%
Hodgdon Superperformance
<<locked>>
86%
57363
90%
**64
100%
Hodgdon TrailBoss
<<locked>>
97%
35592
56%
**47
100%
IMR 4064
<<locked>>
83%
57334
90%
**36
100%
IMR 4166 Enduron
<<locked>>
84%
57029
89%
**36
100%
IMR 4350
<<locked>>
89%
57305
90%
**76
100%
IMR 4451 Enduron
<<locked>>
85%
56840
89%
**56
100%
IMR 4831
<<locked>>
93%
57363
90%
**92
100%
IMR 4955 Enduron
<<locked>>
96%
57246
90%
**82
98%
IMR 7828 SSC
<<locked>>
95%
57305
90%
**91
98%
Lovex S065
<<locked>>
87%
56724
89%
**46
100%
Lovex S070
<<locked>>
88%
57305
90%
**76
100%
Lovex S071
<<locked>>
97%
48834
77%
**44
99%
Norma 204
<<locked>>
88%
56579
89%
**09
99%
[Norma 217]*
<<locked>>
97%
34360
54%
**74
94%
Norma MRP 👍
<<locked>>
94%
56855
89%
**00
100%
Norma URP
<<locked>>
88%
57217
90%
**09
100%
Ramshot Hunter
<<locked>>
89%
56913
89%
**22
100%
Ramshot Magnum
<<locked>>
97%
57029
89%
**58
100%
ReloadSwiss RS 14
<<locked>>
96%
35810
56%
**73
100%
ReloadSwiss RS 60
<<locked>>
85%
56753
89%
**61
100%
ReloadSwiss RS 62
<<locked>>
87%
57290
90%
**28
100%
ReloadSwiss RS 70
<<locked>>
88%
56855
89%
**71
100%
ReloadSwiss RS 76
<<locked>>
97%
46949
74%
**86
99%
[ReloadSwiss RS 80]*
<<locked>>
97%
42221
66%
**51
93%
Rottweil R 904
<<locked>>
92%
56724
89%
**79
98%
Rottweil R 905 👍
<<locked>>
93%
56521
89%
**28
99%
Rottweil R 907
<<locked>>
86%
57305
90%
**63
100%
SNPE Vectan Tubal 5000
<<locked>>
83%
57246
90%
**22
100%
SNPE Vectan Tubal 7000
<<locked>>
87%
56898
89%
**13
100%
Shooters World Long Rifle
<<locked>>
87%
56724
89%
**46
100%
Somchem S355
<<locked>>
83%
57101
89%
**43
100%
Somchem S361
<<locked>>
91%
56797
89%
**49
97%
Somchem S365
<<locked>>
90%
57029
89%
**02
100%
Somchem S385
<<locked>>
93%
57058
89%
**99
100%
Vihtavuori N135
<<locked>>
84%
57188
90%
**54
100%
Vihtavuori N150
<<locked>>
88%
56811
89%
**00
100%
Vihtavuori N160
<<locked>>
86%
57058
89%
**69
100%
Vihtavuori N165
<<locked>>
97%
54186
85%
**40
99%
Vihtavuori N550
<<locked>>
86%
56985
89%
**02
100%
Vihtavuori N555
<<locked>>
94%
57130
90%
**31
100%
Vihtavuori N560
<<locked>>
96%
56927
89%
**91
98%
Vihtavuori N565
<<locked>>
97%
50009
78%
**49
97%
[Vihtavuori N568]*
<<locked>>
97%
43729
69%
**67
93%
Winchester 6.5 StaBALL
<<locked>>
87%
56753
89%
**27
100%
Winchester 760
<<locked>>
84%
57290
90%
**31
100%
Winchester StaBALL HD
<<locked>>
97%
51808
81%
**77
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2209
<<locked>>
81%
38580
60%
**84
95%
[ADI AR 2213]*
<<locked>>
81%
34534
54%
**95
91%
[ADI AR 2217]*
<<locked>>
90%
33939
53%
**66
90%
[ADI AR 2225]*
<<locked>>
87%
28137
44%
**41
90%
Accurate 2700
<<locked>>
81%
52591
82%
**41
99%
Accurate 3100
<<locked>>
81%
34664
54%
**52
96%
Accurate 4350
<<locked>>
81%
46441
73%
**28
100%
[Accurate MAGPRO]*
<<locked>>
85%
37782
59%
**00
90%
Alliant Reloder-16
<<locked>>
81%
43830
69%
**18
100%
Alliant Reloder-17
<<locked>>
81%
50604
79%
**49
100%
Alliant Reloder-19
<<locked>>
81%
38479
60%
**71
95%
[Alliant Reloder-22]*
<<locked>>
81%
34360
54%
**05
93%
Alliant Reloder-23
<<locked>>
81%
32909
52%
**79
99%
[Alliant Reloder-25]*
<<locked>>
81%
28906
45%
**70
94%
Alliant Reloder-26
<<locked>>
81%
36071
57%
**13
98%
[Hodgdon H1000]*
<<locked>>
90%
33939
53%
**66
90%
Hodgdon H414
<<locked>>
81%
51576
81%
**33
99%
Hodgdon H4350
<<locked>>
81%
42337
66%
**07
97%
[Hodgdon H4831]*
<<locked>>
83%
34548
54%
**49
90%
[Hodgdon H4831 SC]*
<<locked>>
81%
36172
57%
**98
91%
Hodgdon Hybrid 100V
<<locked>>
81%
41568
65%
**07
100%
Hodgdon LVR
<<locked>>
81%
48530
76%
**58
100%
[Hodgdon Retumbo]*
<<locked>>
87%
28137
44%
**41
90%
Hodgdon Superperformance
<<locked>>
81%
47210
74%
**84
98%
Hodgdon TrailBoss
<<locked>>
81%
28210
44%
**83
100%
IMR 4064
<<locked>>
81%
53432
84%
**74
100%
IMR 4166 Enduron
<<locked>>
81%
51851
81%
**51
99%
IMR 4350
<<locked>>
81%
44527
70%
**46
98%
IMR 4451 Enduron
<<locked>>
81%
50125
79%
**44
99%
IMR 4831
<<locked>>
81%
39769
62%
**77
99%
[IMR 4955 Enduron]*
<<locked>>
81%
36492
57%
**66
92%
[IMR 7828 SSC]*
<<locked>>
81%
34983
55%
**18
91%
Lovex S065
<<locked>>
81%
47993
75%
**02
99%
Lovex S070
<<locked>>
81%
46282
73%
**85
99%
[Lovex S071]*
<<locked>>
81%
29849
47%
**25
94%
Norma 204
<<locked>>
81%
44164
69%
**82
96%
[Norma 217]*
<<locked>>
91%
28877
45%
**00
90%
Norma MRP
<<locked>>
81%
35665
56%
**67
95%
Norma URP
<<locked>>
81%
45295
71%
**05
100%
Ramshot Hunter
<<locked>>
81%
43859
69%
**89
99%
[Ramshot Magnum]*
<<locked>>
81%
31749
50%
**30
92%
ReloadSwiss RS 14
<<locked>>
81%
29037
45%
**29
100%
ReloadSwiss RS 60
<<locked>>
81%
48878
77%
**40
100%
ReloadSwiss RS 62
<<locked>>
81%
45963
72%
**38
100%
ReloadSwiss RS 70
<<locked>>
81%
44077
69%
**48
100%
[ReloadSwiss RS 76]*
<<locked>>
83%
28863
45%
**87
90%
[ReloadSwiss RS 80]*
<<locked>>
93%
36303
57%
**00
90%
[Rottweil R 904]*
<<locked>>
81%
40118
63%
**61
94%
Rottweil R 905
<<locked>>
81%
37855
59%
**57
95%
Rottweil R 907
<<locked>>
81%
49023
77%
**18
98%
SNPE Vectan Tubal 5000
<<locked>>
81%
53229
83%
**62
100%
SNPE Vectan Tubal 7000
<<locked>>
81%
47166
74%
**43
99%
Shooters World Long Rifle
<<locked>>
81%
47993
75%
**02
99%
Somchem S355
<<locked>>
81%
53011
83%
**84
100%
[Somchem S361]*
<<locked>>
81%
40669
64%
**44
93%
Somchem S365
<<locked>>
81%
42177
66%
**62
100%
Somchem S385
<<locked>>
81%
38537
60%
**48
96%
Vihtavuori N135
<<locked>>
81%
51692
81%
**72
100%
Vihtavuori N150
<<locked>>
81%
45585
71%
**20
100%
Vihtavuori N160
<<locked>>
81%
48515
76%
**25
100%
[Vihtavuori N165]*
<<locked>>
81%
32460
51%
**87
93%
Vihtavuori N550
<<locked>>
81%
49313
77%
**74
100%
Vihtavuori N555
<<locked>>
81%
37231
58%
**64
99%
[Vihtavuori N560]*
<<locked>>
81%
34519
54%
**21
90%
[Vihtavuori N565]*
<<locked>>
85%
33504
53%
**89
90%
[Vihtavuori N568]*
<<locked>>
93%
37811
59%
**23
90%
Winchester 6.5 StaBALL
<<locked>>
81%
45701
72%
**59
100%
Winchester 760
<<locked>>
81%
51576
81%
**33
99%
Winchester StaBALL HD
<<locked>>
81%
27992
44%
**75
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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