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Load data for .270 Win. Ackley Improved + .277 | 120gr | Barnes X S

Recommended Powder(s): Accurate 4350, Hodgdon H380, Hodgdon LVR, ReloadSwiss RS 62, Vihtavuori N550

.270 Win. Ackley Improved + .277 | 120gr | Barnes X S

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.277 | 120gr | Barnes X S
Manufacturer SKU:
27712
Bullet Weight:
120gr | 7.8g
Bullet Diameter:
0.277" | 7.04mm
Bullet Length:
<<locked>>
Caliber:
.270 Win. Ackley Improved load data
Case Length (l3):
2.540" | 64.5mm
Cartridge Length (C.O.L.):
<<locked>>
Seated Depth:
<<locked>>
Shank Seated Depth:
<<locked>>
Case Capacity:
70.0 Grains of Water | 4.55 cm³
Primer Size:
Large Rifle (LR)
Max. allowed Pressure:
72519 psi | 5000 bar
LID:
LID_B533_C272
Last updated:
2026-01-20

Load data for 220 loads in caliber .270 Win. Ackley Improved with .277 | 120gr | Barnes X S bullet and 110 powders such as Accurate 4350, Hodgdon H380, Hodgdon LVR, ReloadSwiss RS 62, Vihtavuori N550. 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".

  • No data yet

  • 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.

    .

    Loading_icon.gif

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 APS 450
<<locked>>
86%
64368
89%
**64
101%
ADI AR 2206H
<<locked>>
87%
65079
90%
**02
100%
ADI AR 2208
<<locked>>
93%
64716
89%
**79
100%
ADI AR 2209
<<locked>>
97%
52388
72%
**61
95%
Accurate 2015
<<locked>>
83%
64513
89%
**64
100%
Accurate 2200
<<locked>>
86%
64498
89%
**63
100%
Accurate 2495
<<locked>>
84%
64919
90%
**20
100%
Accurate 2520
<<locked>>
84%
64861
89%
**63
100%
Accurate 2700
<<locked>>
93%
64977
90%
**20
98%
Accurate 3100
<<locked>>
97%
46238
64%
**20
97%
Accurate 4064
<<locked>>
90%
65253
90%
**50
100%
Accurate 4350 👍
<<locked>>
97%
62134
86%
**12
100%
Alliant AR-Comp
<<locked>>
85%
64571
89%
**00
100%
Alliant Power Pro 2000-MR
<<locked>>
89%
64571
89%
**23
100%
Alliant Reloder- TS 15.5
<<locked>>
92%
64759
89%
**92
100%
Alliant Reloder-15
<<locked>>
90%
64629
89%
**12
100%
Alliant Reloder-16
<<locked>>
97%
57609
79%
**92
100%
Alliant Reloder-17
<<locked>>
95%
65064
90%
**10
100%
Alliant Reloder-19
<<locked>>
97%
51213
71%
**38
95%
[Alliant Reloder-22]*
<<locked>>
97%
45527
63%
**69
93%
Alliant Reloder-23
<<locked>>
97%
43410
60%
**40
99%
Alliant Reloder-25
<<locked>>
97%
38595
53%
**31
95%
Alliant Reloder-26
<<locked>>
97%
48834
67%
**17
99%
Baschieri & Pellagri 107
<<locked>>
87%
64585
89%
**09
100%
[Bofors RP15]*
<<locked>>
97%
42467
59%
**04
92%
Bofors RP3
<<locked>>
91%
65224
90%
**05
100%
[Bofors RP5]*
<<locked>>
97%
45527
63%
**69
93%
Bofors RP7
<<locked>>
96%
65093
90%
**86
98%
Hodgdon BL-C2
<<locked>>
85%
65224
90%
**09
100%
Hodgdon Benchmark
<<locked>>
85%
64905
89%
**17
100%
Hodgdon CFE223
<<locked>>
90%
65079
90%
**51
100%
Hodgdon H322
<<locked>>
84%
65180
90%
**43
100%
Hodgdon H380 👍
<<locked>>
91%
64948
90%
**12
100%
Hodgdon H414
<<locked>>
94%
65137
90%
**71
99%
Hodgdon H4350
<<locked>>
97%
55898
77%
**68
97%
Hodgdon Hybrid 100V
<<locked>>
97%
54795
76%
**68
100%
Hodgdon LVR 👍
<<locked>>
97%
64614
89%
**51
100%
Hodgdon Superperformance
<<locked>>
97%
64672
89%
**01
99%
Hodgdon VARGET
<<locked>>
93%
64194
89%
**76
100%
Hodgdon TrailBoss
<<locked>>
96%
34882
48%
**90
100%
IMR 3031
<<locked>>
89%
64832
89%
**66
100%
IMR 4064
<<locked>>
93%
64034
88%
**59
100%
IMR 4166 Enduron
<<locked>>
94%
64977
90%
**66
99%
IMR 4350
<<locked>>
97%
59509
82%
**17
98%
IMR 4451 Enduron
<<locked>>
95%
65224
90%
**99
99%
IMR 4831
<<locked>>
97%
52562
72%
**48
99%
IMR 4895
<<locked>>
89%
65151
90%
**28
100%
[IMR 4955 Enduron]*
<<locked>>
97%
48312
67%
**17
92%
[IMR 7828 SSC]*
<<locked>>
97%
48080
66%
**09
92%
IMR 8208 XBR
<<locked>>
86%
65093
90%
**69
100%
Lovex D073.6
<<locked>>
87%
65224
90%
**66
100%
Lovex S060
<<locked>>
88%
64934
90%
**36
100%
Lovex S062
<<locked>>
91%
64992
90%
**69
100%
Lovex S065
<<locked>>
97%
63976
88%
**76
100%
Lovex S070
<<locked>>
97%
62294
86%
**63
99%
Lovex S071
<<locked>>
97%
39537
55%
**79
95%
Norma 201
<<locked>>
88%
64817
89%
**56
100%
Norma 202
<<locked>>
87%
64527
89%
**36
100%
Norma 203B
<<locked>>
90%
64875
89%
**19
100%
Norma 204
<<locked>>
97%
59785
82%
**66
97%
Norma MRP
<<locked>>
97%
47877
66%
**58
96%
Norma URP
<<locked>>
97%
60597
84%
**96
100%
Ramshot Big Game
<<locked>>
90%
64585
89%
**28
100%
[Ramshot Grand]*
<<locked>>
97%
50227
69%
**54
93%
Ramshot Hunter
<<locked>>
97%
58682
81%
**86
99%
[Ramshot Magnum]*
<<locked>>
97%
44570
61%
**17
93%
Ramshot TAC
<<locked>>
86%
65209
90%
**86
100%
Ramshot Wild Boar
<<locked>>
86%
65079
90%
**02
100%
Ramshot X-Terminator
<<locked>>
83%
64658
89%
**46
100%
ReloadSwiss RS 14
<<locked>>
96%
35404
49%
**36
100%
ReloadSwiss RS 50
<<locked>>
91%
64382
89%
**86
99%
ReloadSwiss RS 52
<<locked>>
88%
65035
90%
**84
100%
ReloadSwiss RS 60
<<locked>>
93%
64585
89%
**14
100%
ReloadSwiss RS 62 👍
<<locked>>
97%
62178
86%
**41
100%
ReloadSwiss RS 70
<<locked>>
97%
59567
82%
**55
100%
Rottweil R 901
<<locked>>
85%
64643
89%
**20
100%
Rottweil R 902
<<locked>>
89%
64527
89%
**40
100%
Rottweil R 903
<<locked>>
93%
64469
89%
**86
100%
[Rottweil R 904]*
<<locked>>
97%
54085
75%
**31
94%
Rottweil R 905
<<locked>>
97%
50488
70%
**35
95%
Rottweil R 907
<<locked>>
96%
65093
90%
**86
98%
SNPE Vectan SP 11
<<locked>>
93%
65195
90%
**41
100%
SNPE Vectan SP 7
<<locked>>
86%
64745
89%
**79
100%
SNPE Vectan SP 9
<<locked>>
88%
64832
89%
**89
100%
SNPE Vectan Tubal 3000
<<locked>>
88%
65151
90%
**77
100%
SNPE Vectan Tubal 5000
<<locked>>
93%
64846
89%
**54
100%
SNPE Vectan Tubal 7000
<<locked>>
97%
64846
89%
**27
99%
Shooters World Long Rifle
<<locked>>
97%
63976
88%
**76
100%
Shooters World Match Rifle
<<locked>>
87%
65224
90%
**66
100%
Shooters World Precision
<<locked>>
91%
64992
90%
**69
100%
Somchem S335
<<locked>>
88%
64992
90%
**71
100%
Somchem S341
<<locked>>
86%
64861
89%
**69
100%
Somchem S355
<<locked>>
93%
64469
89%
**89
100%
[Somchem S361]*
<<locked>>
97%
55579
77%
**18
94%
Somchem S365
<<locked>>
97%
55637
77%
**46
100%
Somchem S385
<<locked>>
97%
51227
71%
**05
96%
Vihtavuori N130
<<locked>>
84%
64817
89%
**31
100%
Vihtavuori N133
<<locked>>
90%
64701
89%
**48
100%
Vihtavuori N135
<<locked>>
95%
64324
89%
**94
100%
Vihtavuori N140
<<locked>>
89%
64600
89%
**14
100%
Vihtavuori N150
<<locked>>
97%
60945
84%
**94
100%
Vihtavuori N160
<<locked>>
96%
65093
90%
**12
100%
[Vihtavuori N165]*
<<locked>>
97%
43381
60%
**35
93%
Vihtavuori N530
<<locked>>
84%
63889
88%
**63
100%
Vihtavuori N540
<<locked>>
90%
65006
90%
**46
100%
Vihtavuori N550 👍
<<locked>>
96%
65195
90%
**61
100%
Vihtavuori N555
<<locked>>
97%
48863
67%
**35
99%
Winchester 6.5 StaBALL
<<locked>>
97%
62062
86%
**40
100%
Winchester 760
<<locked>>
94%
65137
90%
**71
99%
Winchester StaBALL HD
<<locked>>
97%
39175
54%
**56
99%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI APS 450
<<locked>>
81%
59190
82%
**85
100%
ADI AR 2206H
<<locked>>
81%
53867
74%
**31
100%
ADI AR 2208
<<locked>>
81%
45919
63%
**71
99%
[ADI AR 2209]*
<<locked>>
87%
39305
54%
**82
90%
Accurate 2015
<<locked>>
81%
60974
84%
**15
100%
Accurate 2200
<<locked>>
81%
55869
77%
**31
99%
Accurate 2495
<<locked>>
81%
58929
81%
**41
100%
Accurate 2520
<<locked>>
81%
57928
80%
**68
100%
[Accurate 2700]*
<<locked>>
81%
45078
62%
**92
94%
[Accurate 3100]*
<<locked>>
83%
29921
41%
**30
90%
Accurate 4064
<<locked>>
81%
50212
69%
**33
100%
Accurate 4350
<<locked>>
81%
37898
52%
**62
96%
Alliant AR-Comp
<<locked>>
81%
57464
79%
**12
100%
Alliant Power Pro 2000-MR
<<locked>>
81%
49821
69%
**87
99%
Alliant Reloder- TS 15.5
<<locked>>
81%
46543
64%
**00
100%
Alliant Reloder-15
<<locked>>
81%
49487
68%
**66
99%
Alliant Reloder-16
<<locked>>
81%
36405
50%
**43
96%
Alliant Reloder-17
<<locked>>
81%
40814
56%
**94
99%
[Alliant Reloder-19]*
<<locked>>
87%
37971
52%
**56
90%
[Alliant Reloder-22]*
<<locked>>
90%
37898
52%
**89
90%
[Alliant Reloder-23]*
<<locked>>
81%
27920
38%
**13
93%
[Alliant Reloder-25]*
<<locked>>
90%
31444
43%
**15
90%
[Alliant Reloder-26]*
<<locked>>
81%
29312
40%
**02
90%
Baschieri & Pellagri 107
<<locked>>
81%
53751
74%
**41
99%
[Bofors RP15]*
<<locked>>
93%
38203
53%
**95
90%
Bofors RP3
<<locked>>
81%
47297
65%
**23
100%
[Bofors RP5]*
<<locked>>
90%
37898
52%
**89
90%
[Bofors RP7]*
<<locked>>
81%
41916
58%
**69
94%
Hodgdon BL-C2
<<locked>>
81%
57058
79%
**91
100%
Hodgdon Benchmark
<<locked>>
81%
57217
79%
**15
100%
Hodgdon CFE223
<<locked>>
81%
48051
66%
**76
99%
Hodgdon H322
<<locked>>
81%
59030
81%
**64
100%
Hodgdon H380
<<locked>>
81%
47703
66%
**23
98%
[Hodgdon H414]*
<<locked>>
81%
42322
58%
**67
94%
[Hodgdon H4350]*
<<locked>>
81%
35563
49%
**38
91%
Hodgdon Hybrid 100V
<<locked>>
81%
34243
47%
**51
97%
Hodgdon LVR
<<locked>>
81%
39755
55%
**95
96%
[Hodgdon Superperformance]*
<<locked>>
81%
38305
53%
**89
92%
Hodgdon VARGET
<<locked>>
81%
45672
63%
**58
99%
Hodgdon TrailBoss
<<locked>>
81%
27833
38%
**32
100%
IMR 3031
<<locked>>
81%
50488
70%
**63
100%
IMR 4064
<<locked>>
81%
45281
62%
**44
99%
IMR 4166 Enduron
<<locked>>
81%
44585
61%
**08
95%
[IMR 4350]*
<<locked>>
81%
37333
51%
**87
92%
[IMR 4451 Enduron]*
<<locked>>
81%
43018
59%
**95
94%
[IMR 4831]*
<<locked>>
81%
33228
46%
**28
94%
IMR 4895
<<locked>>
81%
50604
70%
**02
100%
[IMR 4955 Enduron]*
<<locked>>
93%
43482
60%
**15
90%
[IMR 7828 SSC]*
<<locked>>
94%
44512
61%
**27
90%
IMR 8208 XBR
<<locked>>
81%
55608
77%
**28
100%
Lovex D073.6
<<locked>>
81%
54940
76%
**22
100%
Lovex S060
<<locked>>
81%
53011
73%
**49
100%
Lovex S062
<<locked>>
81%
49139
68%
**23
100%
Lovex S065
<<locked>>
81%
41278
57%
**59
96%
[Lovex S070]*
<<locked>>
81%
39102
54%
**23
93%
[Lovex S071]*
<<locked>>
87%
29762
41%
**23
90%
Norma 201
<<locked>>
81%
53490
74%
**89
100%
Norma 202
<<locked>>
81%
53606
74%
**86
100%
Norma 203B
<<locked>>
81%
48820
67%
**53
99%
[Norma 204]*
<<locked>>
82%
38348
53%
**40
90%
[Norma MRP]*
<<locked>>
86%
34447
48%
**30
90%
Norma URP
<<locked>>
81%
37231
51%
**43
96%
Ramshot Big Game
<<locked>>
81%
48776
67%
**72
99%
[Ramshot Grand]*
<<locked>>
93%
44063
61%
**17
90%
[Ramshot Hunter]*
<<locked>>
81%
35955
50%
**13
93%
[Ramshot Magnum]*
<<locked>>
92%
38029
52%
**53
90%
Ramshot TAC
<<locked>>
81%
55912
77%
**45
99%
Ramshot Wild Boar
<<locked>>
81%
55985
77%
**68
100%
Ramshot X-Terminator
<<locked>>
81%
59930
83%
**81
100%
ReloadSwiss RS 14
<<locked>>
81%
28369
39%
**75
100%
ReloadSwiss RS 50
<<locked>>
81%
47572
66%
**00
97%
ReloadSwiss RS 52
<<locked>>
81%
52634
73%
**91
100%
ReloadSwiss RS 60
<<locked>>
81%
43134
59%
**53
100%
ReloadSwiss RS 62
<<locked>>
81%
37202
51%
**72
96%
[ReloadSwiss RS 70]*
<<locked>>
81%
36289
50%
**49
94%
Rottweil R 901
<<locked>>
81%
57986
80%
**22
100%
Rottweil R 902
<<locked>>
81%
50952
70%
**30
100%
Rottweil R 903
<<locked>>
81%
44686
62%
**61
99%
[Rottweil R 904]*
<<locked>>
88%
41872
58%
**95
90%
[Rottweil R 905]*
<<locked>>
87%
37188
51%
**40
90%
[Rottweil R 907]*
<<locked>>
81%
41916
58%
**69
94%
SNPE Vectan SP 11
<<locked>>
81%
44831
62%
**04
99%
SNPE Vectan SP 7
<<locked>>
81%
55201
76%
**28
99%
SNPE Vectan SP 9
<<locked>>
81%
52243
72%
**95
100%
SNPE Vectan Tubal 3000
<<locked>>
81%
53548
74%
**10
100%
SNPE Vectan Tubal 5000
<<locked>>
81%
45571
63%
**76
100%
[SNPE Vectan Tubal 7000]*
<<locked>>
81%
40132
55%
**94
94%
Shooters World Long Rifle
<<locked>>
81%
41278
57%
**59
96%
Shooters World Match Rifle
<<locked>>
81%
54940
76%
**22
100%
Shooters World Precision
<<locked>>
81%
49139
68%
**23
100%
Somchem S335
<<locked>>
81%
54041
75%
**17
100%
Somchem S341
<<locked>>
81%
54650
75%
**25
100%
Somchem S355
<<locked>>
81%
45034
62%
**61
99%
[Somchem S361]*
<<locked>>
90%
44469
61%
**15
90%
Somchem S365
<<locked>>
81%
34026
47%
**13
98%
[Somchem S385]*
<<locked>>
84%
34737
48%
**51
90%
Vihtavuori N130
<<locked>>
81%
58929
81%
**56
100%
Vihtavuori N133
<<locked>>
81%
50821
70%
**54
100%
Vihtavuori N135
<<locked>>
81%
43598
60%
**82
100%
Vihtavuori N140
<<locked>>
81%
49908
69%
**00
100%
Vihtavuori N150
<<locked>>
81%
38769
53%
**03
99%
Vihtavuori N160
<<locked>>
81%
40161
55%
**72
97%
[Vihtavuori N165]*
<<locked>>
91%
35824
49%
**61
90%
Vihtavuori N530
<<locked>>
81%
59117
82%
**91
100%
Vihtavuori N540
<<locked>>
81%
50140
69%
**33
100%
Vihtavuori N550
<<locked>>
81%
40828
56%
**25
97%
[Vihtavuori N555]*
<<locked>>
81%
30095
42%
**95
94%
Winchester 6.5 StaBALL
<<locked>>
81%
38029
52%
**13
98%
[Winchester 760]*
<<locked>>
81%
42322
58%
**67
94%
[Winchester StaBALL HD]*
<<locked>>
81%
25454
35%
**64
90%

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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