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Load data for .270 Weath. Mag. + .277 | 130gr | Atomic 29 HP

Recommended Powder(s): Alliant Reloder-26, Ramshot Hunter, ReloadSwiss RS 70, Vihtavuori N555, Winchester StaBALL HD

.270 Weath. Mag. + .277 | 130gr | Atomic 29 HP

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.277 | 130gr | Atomic 29 HP
Bullet Weight:
130gr | 8.4g
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_B12227_C270
Last updated:
2026-02-07

Load data for 156 loads in caliber .270 Weath. Mag. with .277 | 130gr | Atomic 29 HP bullet and 78 powders such as Alliant Reloder-26, Ramshot Hunter, ReloadSwiss RS 70, Vihtavuori N555, Winchester StaBALL HD. 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 2208
<<locked>>
85%
57000
89%
**41
100%
ADI AR 2209
<<locked>>
95%
57145
90%
**36
98%
ADI AR 2213
<<locked>>
97%
53330
84%
**04
97%
[ADI AR 2225]*
<<locked>>
97%
34621
54%
**20
93%
Accurate 2700
<<locked>>
86%
57348
90%
**12
99%
Accurate 3100
<<locked>>
97%
53214
83%
**22
100%
Accurate 4350
<<locked>>
90%
57174
90%
**07
100%
[Accurate MAGPRO]*
<<locked>>
97%
52359
82%
**00
94%
Alliant Reloder- TS 15.5
<<locked>>
84%
57232
90%
**58
100%
Alliant Reloder-16
<<locked>>
92%
57246
90%
**56
100%
Alliant Reloder-17
<<locked>>
87%
56797
89%
**53
100%
Alliant Reloder-19
<<locked>>
96%
57406
90%
**40
99%
Alliant Reloder-22
<<locked>>
97%
52721
83%
**94
98%
Alliant Reloder-23
<<locked>>
97%
50386
79%
**41
100%
Alliant Reloder-25
<<locked>>
97%
43743
69%
**59
99%
Alliant Reloder-26 👍
<<locked>>
96%
56898
89%
**28
100%
[Baschieri & Pellagri 109]*
<<locked>>
97%
53142
83%
**05
93%
Bofors RP15
<<locked>>
97%
48878
77%
**28
97%
Bofors RP3
<<locked>>
84%
57174
90%
**54
100%
[Bofors RP30]*
<<locked>>
97%
39755
62%
**61
93%
Bofors RP5
<<locked>>
97%
52721
83%
**94
98%
Bofors RP7
<<locked>>
88%
56724
89%
**48
99%
Hodgdon H380
<<locked>>
84%
57348
90%
**74
100%
Hodgdon H414
<<locked>>
86%
56884
89%
**27
99%
Hodgdon H4350
<<locked>>
93%
57000
89%
**74
99%
Hodgdon H4831
<<locked>>
97%
49676
78%
**69
95%
Hodgdon H4831 SC
<<locked>>
97%
55999
88%
**87
96%
Hodgdon Hybrid 100V
<<locked>>
93%
57087
89%
**61
100%
Hodgdon LVR
<<locked>>
89%
57363
90%
**14
100%
[Hodgdon Retumbo]*
<<locked>>
97%
34621
54%
**20
93%
Hodgdon Superperformance
<<locked>>
88%
56608
89%
**53
99%
Hodgdon VARGET
<<locked>>
85%
56608
89%
**38
100%
Hodgdon TrailBoss
<<locked>>
97%
35215
55%
**03
100%
IMR 4064
<<locked>>
85%
57072
89%
**35
100%
IMR 4166 Enduron
<<locked>>
86%
56985
89%
**31
99%
IMR 4350
<<locked>>
91%
56942
89%
**71
99%
IMR 4451 Enduron
<<locked>>
87%
57421
90%
**61
99%
IMR 4831
<<locked>>
95%
57072
89%
**84
100%
IMR 4955 Enduron
<<locked>>
97%
55172
86%
**35
96%
IMR 7828 SSC
<<locked>>
97%
55419
87%
**53
97%
Lovex S065
<<locked>>
89%
56956
89%
**45
100%
Lovex S070
<<locked>>
90%
56826
89%
**64
99%
Lovex S071
<<locked>>
97%
44396
70%
**61
98%
Norma 204
<<locked>>
91%
56579
89%
**04
98%
Norma MRP
<<locked>>
97%
56159
88%
**92
99%
Norma URP
<<locked>>
91%
56637
89%
**00
100%
Ramshot Grand
<<locked>>
96%
57072
89%
**96
98%
Ramshot Hunter 👍
<<locked>>
92%
57421
90%
**33
100%
Ramshot Magnum
<<locked>>
97%
51605
81%
**61
98%
ReloadSwiss RS 14
<<locked>>
96%
35331
55%
**36
100%
ReloadSwiss RS 50
<<locked>>
84%
57159
90%
**54
100%
ReloadSwiss RS 60
<<locked>>
85%
56681
89%
**46
100%
ReloadSwiss RS 62
<<locked>>
90%
57203
90%
**30
100%
ReloadSwiss RS 70 👍
<<locked>>
91%
57232
90%
**86
100%
ReloadSwiss RS 76
<<locked>>
97%
42366
66%
**63
97%
Rottweil R 903
<<locked>>
85%
56956
89%
**51
100%
Rottweil R 904
<<locked>>
95%
57377
90%
**91
97%
Rottweil R 905
<<locked>>
96%
57159
90%
**30
99%
Rottweil R 907
<<locked>>
88%
56724
89%
**48
99%
SNPE Vectan SP 11
<<locked>>
85%
56695
89%
**81
100%
SNPE Vectan Tubal 5000
<<locked>>
85%
57145
90%
**23
100%
SNPE Vectan Tubal 7000
<<locked>>
89%
56811
89%
**05
99%
Shooters World Long Rifle
<<locked>>
89%
56956
89%
**45
100%
Somchem S355
<<locked>>
86%
57072
89%
**45
100%
Somchem S361
<<locked>>
93%
56782
89%
**38
97%
Somchem S365
<<locked>>
93%
56884
89%
**07
100%
Somchem S385
<<locked>>
96%
57130
90%
**97
99%
Vihtavuori N135
<<locked>>
87%
57319
90%
**63
100%
Vihtavuori N150
<<locked>>
91%
56913
89%
**02
100%
Vihtavuori N160
<<locked>>
88%
56942
89%
**61
100%
Vihtavuori N165
<<locked>>
97%
49574
78%
**56
98%
Vihtavuori N550
<<locked>>
88%
57305
90%
**14
100%
Vihtavuori N555 👍
<<locked>>
97%
55912
88%
**17
100%
Vihtavuori N560
<<locked>>
97%
53388
84%
**36
96%
[Vihtavuori N565]*
<<locked>>
97%
45295
71%
**56
94%
Winchester 6.5 StaBALL
<<locked>>
90%
56594
89%
**25
100%
Winchester 760
<<locked>>
86%
56884
89%
**27
99%
Winchester StaBALL HD 👍
<<locked>>
97%
45948
72%
**97
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2208
<<locked>>
81%
50778
80%
**36
100%
[ADI AR 2209]*
<<locked>>
81%
35302
55%
**80
92%
[ADI AR 2213]*
<<locked>>
85%
36550
57%
**23
90%
[ADI AR 2225]*
<<locked>>
93%
30487
48%
**85
90%
Accurate 2700
<<locked>>
81%
49023
77%
**71
98%
[Accurate 3100]*
<<locked>>
81%
30821
48%
**36
93%
Accurate 4350
<<locked>>
81%
41829
66%
**28
99%
[Accurate MAGPRO]*
<<locked>>
90%
40321
63%
**51
90%
Alliant Reloder- TS 15.5
<<locked>>
81%
51750
81%
**69
100%
Alliant Reloder-16
<<locked>>
81%
40379
63%
**38
99%
Alliant Reloder-17
<<locked>>
81%
46398
73%
**79
100%
[Alliant Reloder-19]*
<<locked>>
81%
35143
55%
**74
92%
[Alliant Reloder-22]*
<<locked>>
82%
31850
50%
**18
90%
Alliant Reloder-23
<<locked>>
81%
29863
47%
**72
97%
[Alliant Reloder-25]*
<<locked>>
81%
26455
41%
**57
90%
Alliant Reloder-26
<<locked>>
81%
32053
50%
**87
95%
[Baschieri & Pellagri 109]*
<<locked>>
92%
45310
71%
**54
90%
[Bofors RP15]*
<<locked>>
84%
32024
50%
**25
90%
Bofors RP3
<<locked>>
81%
52127
82%
**79
100%
[Bofors RP30]*
<<locked>>
92%
34156
54%
**03
90%
[Bofors RP5]*
<<locked>>
82%
31850
50%
**18
90%
Bofors RP7
<<locked>>
81%
45585
71%
**44
97%
Hodgdon H380
<<locked>>
81%
52446
82%
**92
100%
Hodgdon H414
<<locked>>
81%
47688
75%
**56
98%
Hodgdon H4350
<<locked>>
81%
39160
61%
**23
95%
[Hodgdon H4831]*
<<locked>>
88%
37144
58%
**03
90%
[Hodgdon H4831 SC]*
<<locked>>
85%
37144
58%
**03
90%
Hodgdon Hybrid 100V
<<locked>>
81%
38116
60%
**30
99%
Hodgdon LVR
<<locked>>
81%
44483
70%
**81
99%
[Hodgdon Retumbo]*
<<locked>>
93%
30487
48%
**85
90%
Hodgdon Superperformance
<<locked>>
81%
42917
67%
**90
97%
Hodgdon VARGET
<<locked>>
81%
50401
79%
**33
100%
Hodgdon TrailBoss
<<locked>>
81%
27775
44%
**39
100%
IMR 4064
<<locked>>
81%
49922
78%
**17
100%
IMR 4166 Enduron
<<locked>>
81%
48631
76%
**87
98%
IMR 4350
<<locked>>
81%
40988
64%
**62
96%
IMR 4451 Enduron
<<locked>>
81%
46992
74%
**81
98%
IMR 4831
<<locked>>
81%
36274
57%
**87
98%
[IMR 4955 Enduron]*
<<locked>>
83%
36230
57%
**48
90%
[IMR 7828 SSC]*
<<locked>>
85%
36637
57%
**36
90%
Lovex S065
<<locked>>
81%
44570
70%
**28
98%
Lovex S070
<<locked>>
81%
42569
67%
**02
97%
[Lovex S071]*
<<locked>>
81%
26571
42%
**08
91%
[Norma 204]*
<<locked>>
81%
40654
64%
**92
94%
[Norma MRP]*
<<locked>>
81%
32358
51%
**61
92%
Norma URP
<<locked>>
81%
41234
65%
**18
99%
[Ramshot Grand]*
<<locked>>
83%
35752
56%
**26
90%
Ramshot Hunter
<<locked>>
81%
40379
63%
**15
97%
[Ramshot Magnum]*
<<locked>>
83%
30719
48%
**72
90%
ReloadSwiss RS 14
<<locked>>
81%
28500
45%
**85
100%
ReloadSwiss RS 50
<<locked>>
81%
52460
82%
**82
99%
ReloadSwiss RS 60
<<locked>>
81%
49240
77%
**28
100%
ReloadSwiss RS 62
<<locked>>
81%
41727
65%
**48
99%
ReloadSwiss RS 70
<<locked>>
81%
40422
63%
**54
98%
[ReloadSwiss RS 76]*
<<locked>>
88%
30922
48%
**35
90%
Rottweil R 903
<<locked>>
81%
49023
77%
**20
100%
[Rottweil R 904]*
<<locked>>
81%
36680
57%
**61
91%
[Rottweil R 905]*
<<locked>>
81%
34418
54%
**61
92%
Rottweil R 907
<<locked>>
81%
45585
71%
**44
97%
SNPE Vectan SP 11
<<locked>>
81%
50488
79%
**76
100%
SNPE Vectan Tubal 5000
<<locked>>
81%
49966
78%
**18
100%
SNPE Vectan Tubal 7000
<<locked>>
81%
43511
68%
**59
97%
Shooters World Long Rifle
<<locked>>
81%
44570
70%
**28
98%
Somchem S355
<<locked>>
81%
49342
77%
**27
100%
[Somchem S361]*
<<locked>>
81%
37463
59%
**51
90%
Somchem S365
<<locked>>
81%
37753
59%
**76
100%
[Somchem S385]*
<<locked>>
81%
34925
55%
**44
93%
Vihtavuori N135
<<locked>>
81%
47906
75%
**22
100%
Vihtavuori N150
<<locked>>
81%
42177
66%
**56
100%
Vihtavuori N160
<<locked>>
81%
44846
70%
**54
99%
[Vihtavuori N165]*
<<locked>>
82%
30124
47%
**07
90%
Vihtavuori N550
<<locked>>
81%
45237
71%
**97
99%
Vihtavuori N555
<<locked>>
81%
33083
52%
**57
97%
[Vihtavuori N560]*
<<locked>>
86%
36782
58%
**69
90%
[Vihtavuori N565]*
<<locked>>
90%
35476
56%
**26
90%
Winchester 6.5 StaBALL
<<locked>>
81%
42250
66%
**92
100%
Winchester 760
<<locked>>
81%
47688
75%
**56
98%
Winchester StaBALL HD
<<locked>>
81%
23917
37%
**46
96%

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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