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

Recommended Powder(s): Alliant Reloder-26, Norma URP, Ramshot Hunter, ReloadSwiss RS 62, ReloadSwiss RS 70

.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:
2026-03-25

Load data for 166 loads in caliber .270 Weath. Mag. with .277 | 130gr | Atomic 29 HP bullet and 83 powders such as Alliant Reloder-26, Norma URP, Ramshot Hunter, ReloadSwiss RS 62, ReloadSwiss RS 70. 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%
56869
89%
**41
100%
ADI AR 2209
<<locked>>
96%
57029
89%
**36
98%
ADI AR 2213
<<locked>>
97%
52069
82%
**87
96%
[ADI AR 2225]*
<<locked>>
97%
33489
52%
**87
92%
Accurate 2700
<<locked>>
86%
57130
90%
**12
99%
Accurate 3100
<<locked>>
97%
51634
81%
**02
99%
Accurate 4064
<<locked>>
83%
56739
89%
**05
100%
Accurate 4350
<<locked>>
90%
56492
89%
**00
100%
[Accurate MAGPRO]*
<<locked>>
97%
51010
80%
**81
94%
Alliant Reloder- TS 15.5
<<locked>>
85%
56826
89%
**58
100%
Alliant Reloder-16
<<locked>>
92%
57043
89%
**56
100%
Alliant Reloder-17
<<locked>>
88%
57334
90%
**56
100%
Alliant Reloder-19
<<locked>>
96%
56971
89%
**33
98%
Alliant Reloder-22
<<locked>>
97%
51416
81%
**77
98%
Alliant Reloder-23
<<locked>>
97%
49124
77%
**28
100%
Alliant Reloder-25
<<locked>>
97%
42395
66%
**33
99%
Alliant Reloder-26 👍
<<locked>>
97%
57014
89%
**35
100%
[Baschieri & Pellagri 109]*
<<locked>>
97%
52286
82%
**99
93%
Bofors RP15
<<locked>>
97%
47659
75%
**12
97%
Bofors RP3
<<locked>>
85%
57246
90%
**68
100%
[Bofors RP30]*
<<locked>>
97%
38319
60%
**25
92%
Bofors RP5
<<locked>>
97%
51416
81%
**77
98%
Bofors RP7
<<locked>>
89%
57305
90%
**64
99%
Hodgdon H380
<<locked>>
84%
56898
89%
**68
100%
Hodgdon H414
<<locked>>
87%
56652
89%
**23
99%
Hodgdon H4350
<<locked>>
94%
56797
89%
**71
99%
Hodgdon H4831
<<locked>>
97%
48486
76%
**53
95%
Hodgdon H4831 SC
<<locked>>
97%
54839
86%
**77
96%
Hodgdon Hybrid 100V
<<locked>>
94%
56536
89%
**68
100%
Hodgdon LVR
<<locked>>
89%
56985
89%
**10
100%
[Hodgdon Retumbo]*
<<locked>>
97%
33489
52%
**87
92%
Hodgdon Superperformance
<<locked>>
89%
57130
90%
**56
99%
Hodgdon VARGET
<<locked>>
86%
57174
90%
**54
100%
Hodgdon TrailBoss
<<locked>>
97%
35012
55%
**00
100%
IMR 4064
<<locked>>
86%
56913
89%
**38
100%
IMR 4166 Enduron
<<locked>>
87%
56840
89%
**31
99%
IMR 4350
<<locked>>
92%
56724
89%
**68
99%
IMR 4451 Enduron
<<locked>>
88%
57101
89%
**58
99%
IMR 4831
<<locked>>
96%
56521
89%
**91
100%
IMR 4955 Enduron
<<locked>>
97%
54128
85%
**28
96%
IMR 7828 SSC
<<locked>>
97%
54085
85%
**36
97%
Lovex S062
<<locked>>
83%
56724
89%
**25
100%
Lovex S065
<<locked>>
90%
57363
90%
**58
100%
Lovex S070
<<locked>>
91%
57217
90%
**77
99%
Lovex S071
<<locked>>
97%
42830
67%
**31
98%
Norma 203B
<<locked>>
83%
57130
90%
**77
100%
Norma 204
<<locked>>
92%
57203
90%
**20
98%
Norma MRP
<<locked>>
97%
54766
86%
**76
99%
Norma URP 👍
<<locked>>
91%
57014
89%
**14
100%
Ramshot Grand
<<locked>>
96%
56884
89%
**96
98%
Ramshot Hunter 👍
<<locked>>
92%
56985
89%
**30
100%
Ramshot Magnum
<<locked>>
97%
50198
79%
**41
98%
ReloadSwiss RS 14
<<locked>>
96%
35085
55%
**36
100%
ReloadSwiss RS 50
<<locked>>
84%
56840
89%
**51
100%
ReloadSwiss RS 60
<<locked>>
86%
57246
90%
**59
100%
ReloadSwiss RS 62 👍
<<locked>>
90%
56623
89%
**23
100%
ReloadSwiss RS 70 👍
<<locked>>
91%
56956
89%
**82
100%
ReloadSwiss RS 76
<<locked>>
97%
40944
64%
**27
96%
Rottweil R 903
<<locked>>
86%
57174
90%
**54
100%
Rottweil R 904
<<locked>>
95%
57000
89%
**84
97%
Rottweil R 905
<<locked>>
97%
56724
89%
**23
98%
Rottweil R 907
<<locked>>
89%
57305
90%
**64
99%
SNPE Vectan SP 11
<<locked>>
85%
57217
90%
**94
100%
SNPE Vectan Tubal 5000
<<locked>>
86%
56942
89%
**23
100%
SNPE Vectan Tubal 7000
<<locked>>
90%
57145
90%
**09
99%
Shooters World Long Rifle
<<locked>>
90%
57363
90%
**58
100%
Shooters World Precision
<<locked>>
83%
56724
89%
**25
100%
Somchem S355
<<locked>>
86%
56652
89%
**41
100%
Somchem S361
<<locked>>
94%
57174
90%
**51
97%
Somchem S365
<<locked>>
94%
57421
90%
**23
100%
Somchem S385
<<locked>>
97%
57406
90%
**97
99%
Vihtavuori N135
<<locked>>
88%
56956
89%
**63
100%
Vihtavuori N150
<<locked>>
92%
57246
90%
**15
100%
Vihtavuori N160
<<locked>>
89%
56565
89%
**68
100%
Vihtavuori N165
<<locked>>
97%
48370
76%
**30
97%
Vihtavuori N550
<<locked>>
89%
56797
89%
**07
100%
Vihtavuori N555
<<locked>>
97%
54389
85%
**00
100%
Vihtavuori N560
<<locked>>
97%
52112
82%
**07
96%
[Vihtavuori N565]*
<<locked>>
97%
43947
69%
**30
94%
Winchester 6.5 StaBALL
<<locked>>
90%
57174
90%
**38
100%
Winchester 760
<<locked>>
87%
56652
89%
**23
99%
Winchester StaBALL HD
<<locked>>
97%
44483
70%
**71
100%
Winchester Supreme 780
<<locked>>
95%
56826
89%
**87
98%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2208
<<locked>>
81%
49777
78%
**30
100%
[ADI AR 2209]*
<<locked>>
81%
34200
54%
**57
91%
[ADI AR 2213]*
<<locked>>
86%
36608
57%
**36
90%
[ADI AR 2225]*
<<locked>>
94%
30618
48%
**95
90%
Accurate 2700
<<locked>>
81%
47892
75%
**48
97%
[Accurate 3100]*
<<locked>>
81%
29385
46%
**03
93%
Accurate 4064
<<locked>>
81%
52605
82%
**46
100%
Accurate 4350
<<locked>>
81%
40306
63%
**99
99%
[Accurate MAGPRO]*
<<locked>>
91%
40988
64%
**71
90%
Alliant Reloder- TS 15.5
<<locked>>
81%
50560
79%
**59
100%
Alliant Reloder-16
<<locked>>
81%
39276
62%
**22
99%
Alliant Reloder-17
<<locked>>
81%
45324
71%
**53
100%
[Alliant Reloder-19]*
<<locked>>
81%
34040
53%
**48
91%
[Alliant Reloder-22]*
<<locked>>
83%
31763
50%
**28
90%
Alliant Reloder-23
<<locked>>
81%
28761
45%
**49
97%
[Alliant Reloder-25]*
<<locked>>
83%
26585
42%
**64
90%
Alliant Reloder-26
<<locked>>
81%
30792
48%
**61
95%
[Baschieri & Pellagri 109]*
<<locked>>
93%
45556
71%
**64
90%
[Bofors RP15]*
<<locked>>
85%
32329
51%
**31
90%
Bofors RP3
<<locked>>
81%
50821
80%
**66
100%
[Bofors RP30]*
<<locked>>
94%
34476
54%
**20
90%
[Bofors RP5]*
<<locked>>
83%
31763
50%
**28
90%
Bofors RP7
<<locked>>
81%
44512
70%
**31
97%
Hodgdon H380
<<locked>>
81%
51198
80%
**79
100%
Hodgdon H414
<<locked>>
81%
46601
73%
**43
98%
Hodgdon H4350
<<locked>>
81%
38189
60%
**07
95%
[Hodgdon H4831]*
<<locked>>
89%
37304
58%
**07
90%
[Hodgdon H4831 SC]*
<<locked>>
85%
37304
58%
**07
90%
Hodgdon Hybrid 100V
<<locked>>
81%
36883
58%
**07
99%
Hodgdon LVR
<<locked>>
81%
43250
68%
**61
99%
[Hodgdon Retumbo]*
<<locked>>
94%
30618
48%
**95
90%
Hodgdon Superperformance
<<locked>>
81%
41742
65%
**71
96%
Hodgdon VARGET
<<locked>>
81%
49298
77%
**23
100%
Hodgdon TrailBoss
<<locked>>
81%
27557
43%
**36
100%
IMR 4064
<<locked>>
81%
48936
77%
**10
100%
IMR 4166 Enduron
<<locked>>
81%
47674
75%
**71
98%
IMR 4350
<<locked>>
81%
39871
62%
**43
95%
IMR 4451 Enduron
<<locked>>
81%
45948
72%
**58
98%
IMR 4831
<<locked>>
81%
35099
55%
**61
97%
[IMR 4955 Enduron]*
<<locked>>
84%
36332
57%
**51
90%
[IMR 7828 SSC]*
<<locked>>
85%
36158
57%
**36
90%
Lovex S062
<<locked>>
81%
52634
82%
**56
100%
Lovex S065
<<locked>>
81%
43381
68%
**02
98%
Lovex S070
<<locked>>
81%
41292
65%
**79
97%
[Lovex S071]*
<<locked>>
81%
25585
40%
**85
90%
Norma 203B
<<locked>>
81%
53084
83%
**12
100%
[Norma 204]*
<<locked>>
81%
39595
62%
**76
94%
[Norma MRP]*
<<locked>>
81%
31140
49%
**25
91%
Norma URP
<<locked>>
81%
40176
63%
**02
98%
[Ramshot Grand]*
<<locked>>
84%
35665
56%
**33
90%
Ramshot Hunter
<<locked>>
81%
39117
61%
**92
97%
[Ramshot Magnum]*
<<locked>>
84%
31053
49%
**82
90%
ReloadSwiss RS 14
<<locked>>
81%
28239
44%
**81
100%
ReloadSwiss RS 50
<<locked>>
81%
51256
80%
**59
99%
ReloadSwiss RS 60
<<locked>>
81%
48138
75%
**18
100%
ReloadSwiss RS 62
<<locked>>
81%
40350
63%
**22
98%
ReloadSwiss RS 70
<<locked>>
81%
39247
61%
**35
98%
[ReloadSwiss RS 76]*
<<locked>>
89%
31183
49%
**38
90%
Rottweil R 903
<<locked>>
81%
47543
75%
**04
100%
[Rottweil R 904]*
<<locked>>
81%
35636
56%
**41
91%
[Rottweil R 905]*
<<locked>>
81%
33257
52%
**35
91%
Rottweil R 907
<<locked>>
81%
44512
70%
**31
97%
SNPE Vectan SP 11
<<locked>>
81%
49298
77%
**63
100%
SNPE Vectan Tubal 5000
<<locked>>
81%
48979
77%
**05
100%
SNPE Vectan Tubal 7000
<<locked>>
81%
42264
66%
**43
97%
Shooters World Long Rifle
<<locked>>
81%
43381
68%
**02
98%
Shooters World Precision
<<locked>>
81%
52634
82%
**56
100%
Somchem S355
<<locked>>
81%
48066
75%
**00
100%
[Somchem S361]*
<<locked>>
81%
36898
58%
**48
90%
Somchem S365
<<locked>>
81%
36477
57%
**53
100%
[Somchem S385]*
<<locked>>
81%
33736
53%
**18
93%
Vihtavuori N135
<<locked>>
81%
46557
73%
**08
100%
Vihtavuori N150
<<locked>>
81%
40930
64%
**40
100%
Vihtavuori N160
<<locked>>
81%
43598
68%
**35
99%
[Vihtavuori N165]*
<<locked>>
83%
30356
48%
**13
90%
Vihtavuori N550
<<locked>>
81%
44092
69%
**81
99%
Vihtavuori N555
<<locked>>
81%
31720
50%
**18
96%
[Vihtavuori N560]*
<<locked>>
87%
37246
58%
**85
90%
[Vihtavuori N565]*
<<locked>>
91%
35839
56%
**33
90%
Winchester 6.5 StaBALL
<<locked>>
81%
41060
64%
**76
100%
Winchester 760
<<locked>>
81%
46601
73%
**43
98%
Winchester StaBALL HD
<<locked>>
81%
22669
36%
**00
95%
[Winchester Supreme 780]*
<<locked>>
81%
33634
53%
**05
91%

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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