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Load data for .260 Ackley Improved + .264 | 140gr | Barnes X S

Recommended Powder(s):

.260 Ackley Improved + .264 | 140gr | Barnes X S

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.264 | 140gr | Barnes X S
Manufacturer SKU:
26405
Bullet Weight:
140gr | 9.1g
Bullet Diameter:
0.264" | 6.71mm
Bullet Length:
<<locked>>
Caliber:
.260 Ackley Improved load data
Case Length (l3):
2.030" | 51.6mm
Cartridge Length (C.O.L.):
<<locked>>
Seated Depth:
<<locked>>
Shank Seated Depth:
<<locked>>
Case Capacity:
56.0 Grains of Water | 3.64 cm³
Primer Size:
Large Rifle (LR)
Max. allowed Pressure:
62366 psi | 4300 bar
LID:
LID_B520_C995
Last updated:
2026-07-02

Load data for 184 loads in caliber .260 Ackley Improved with .264 | 140gr | Barnes X S bullet and 92 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".

  • 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.

    .

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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>>
88%
55216
89%
**38
100%
ADI AR 2209
<<locked>>
97%
50691
81%
**57
97%
[ADI AR 2213]*
<<locked>>
96%
45237
73%
**72
93%
Accurate 2495
<<locked>>
83%
55187
88%
**62
100%
Accurate 2700
<<locked>>
85%
55143
88%
**98
98%
Accurate 3100
<<locked>>
96%
44643
72%
**30
98%
Accurate 4064
<<locked>>
85%
55535
89%
**12
100%
Accurate 4350
<<locked>>
94%
55274
89%
**07
100%
[Accurate MAGPRO]*
<<locked>>
97%
46122
74%
**38
92%
Alliant Power Pro 2000-MR
<<locked>>
84%
54853
88%
**62
100%
Alliant Reloder- TS 15.5
<<locked>>
88%
55796
89%
**64
100%
Alliant Reloder-15
<<locked>>
85%
55477
89%
**71
100%
Alliant Reloder-16 👍
<<locked>>
96%
55912
90%
**59
100%
Alliant Reloder-17
<<locked>>
91%
56043
90%
**76
100%
Alliant Reloder-19
<<locked>>
96%
49806
80%
**44
97%
Alliant Reloder-22
<<locked>>
96%
44164
71%
**89
95%
Alliant Reloder-23
<<locked>>
97%
42351
68%
**59
100%
Alliant Reloder-25
<<locked>>
97%
37217
60%
**64
96%
Alliant Reloder-26
<<locked>>
97%
47471
76%
**23
100%
[Bofors RP15]*
<<locked>>
97%
41220
66%
**30
94%
Bofors RP3
<<locked>>
87%
55216
89%
**61
100%
Bofors RP5
<<locked>>
96%
44164
71%
**89
95%
Bofors RP7
<<locked>>
91%
55245
89%
**44
98%
Hodgdon H380
<<locked>>
86%
55216
89%
**64
100%
Hodgdon H414
<<locked>>
93%
55259
89%
**23
99%
Hodgdon H4350
<<locked>>
91%
55825
90%
**84
98%
[Hodgdon H4831]*
<<locked>>
97%
49052
79%
**02
94%
[Hodgdon H4831 SC]*
<<locked>>
96%
47616
76%
**72
93%
Hodgdon Hybrid 100V
<<locked>>
96%
53316
85%
**51
100%
Hodgdon LEVERevolution
<<locked>>
84%
54940
88%
**84
100%
Hodgdon Superformance
<<locked>>
93%
55753
89%
**69
99%
Hodgdon TrailBoss
<<locked>>
96%
34621
56%
**88
100%
Hodgdon VARGET
<<locked>>
83%
55042
88%
**31
100%
IMR 4064
<<locked>>
86%
55970
90%
**38
100%
IMR 4166 Enduron
<<locked>>
85%
55753
89%
**28
99%
IMR 4350
<<locked>>
95%
55535
89%
**67
98%
IMR 4451 Enduron
<<locked>>
90%
55666
89%
**54
99%
IMR 4831
<<locked>>
96%
56086
90%
**07
100%
IMR 4895
<<locked>>
84%
55608
89%
**84
100%
IMR 4955 Enduron
<<locked>>
97%
50633
81%
**92
95%
[IMR 7828 SSC]*
<<locked>>
97%
44121
71%
**66
93%
Lovex S060
<<locked>>
83%
55956
90%
**95
100%
Lovex S062
<<locked>>
85%
54810
88%
**15
100%
Lovex S065
<<locked>>
92%
55898
90%
**54
100%
Lovex S070
<<locked>>
94%
56115
90%
**74
99%
Lovex S071
<<locked>>
97%
38174
61%
**11
96%
Norma 201
<<locked>>
83%
56072
90%
**18
100%
Norma 203B
<<locked>>
86%
55941
90%
**77
100%
Norma 204
<<locked>>
95%
55259
89%
**07
97%
Norma MRP
<<locked>>
96%
46398
74%
**61
97%
Norma URP
<<locked>>
95%
55332
89%
**17
100%
Ramshot Big Game
<<locked>>
85%
55782
89%
**94
100%
[Ramshot Grand]*
<<locked>>
96%
43178
69%
**52
93%
Ramshot Hunter 👍
<<locked>>
95%
55027
88%
**26
99%
[Ramshot Magnum]*
<<locked>>
97%
39334
63%
**67
94%
ReloadSwiss RS 14
<<locked>>
95%
34954
56%
**21
100%
ReloadSwiss RS 50
<<locked>>
87%
55347
89%
**48
99%
ReloadSwiss RS 52
<<locked>>
83%
56130
90%
**36
100%
ReloadSwiss RS 60
<<locked>>
89%
55434
89%
**62
100%
ReloadSwiss RS 62 👍
<<locked>>
94%
55767
89%
**49
100%
ReloadSwiss RS 70 👍
<<locked>>
95%
55027
88%
**79
100%
[ReloadSwiss RS 76]*
<<locked>>
97%
36361
58%
**64
93%
Rottweil R 902
<<locked>>
85%
56115
90%
**12
100%
Rottweil R 903
<<locked>>
89%
55796
89%
**61
100%
Rottweil R 904
<<locked>>
97%
52634
84%
**28
96%
Rottweil R 905
<<locked>>
97%
49298
79%
**38
97%
Rottweil R 907
<<locked>>
91%
55245
89%
**44
98%
SNPE Vectan SP 11
<<locked>>
89%
55840
90%
**03
100%
SNPE Vectan SP 9
<<locked>>
83%
55216
89%
**44
100%
SNPE Vectan Tubal 5000
<<locked>>
88%
54940
88%
**26
100%
SNPE Vectan Tubal 7000
<<locked>>
92%
55593
89%
**08
99%
SNPE Vectan Tubal 8000
<<locked>>
97%
48820
78%
**31
96%
Shooters World Long Rifle
<<locked>>
92%
55898
90%
**54
100%
Shooters World Precision
<<locked>>
85%
54810
88%
**15
100%
Shooters World SW4350
<<locked>>
94%
56115
90%
**74
99%
Somchem S355
<<locked>>
89%
55477
89%
**48
100%
Somchem S361
<<locked>>
97%
54491
87%
**28
95%
Somchem S365
<<locked>>
97%
53737
86%
**13
100%
Somchem S385
<<locked>>
96%
49705
80%
**12
97%
Vihtavuori N135
<<locked>>
86%
55985
90%
**72
100%
Vihtavuori N140
<<locked>>
85%
55840
90%
**85
100%
Vihtavuori N150
<<locked>>
90%
55753
89%
**15
100%
Vihtavuori N160
<<locked>>
94%
55767
89%
**80
100%
Vihtavuori N165
<<locked>>
96%
43018
69%
**84
95%
Vihtavuori N540
<<locked>>
86%
55941
90%
**05
100%
Vihtavuori N550
<<locked>>
94%
55564
89%
**97
100%
Vihtavuori N555
<<locked>>
97%
47369
76%
**31
100%
[Vihtavuori N560]*
<<locked>>
96%
46862
75%
**41
93%
Winchester 6.5 StaBALL
<<locked>>
93%
55071
88%
**51
100%
Winchester 760 👍
<<locked>>
93%
55782
89%
**30
99%
Winchester StaBALL HD
<<locked>>
97%
38145
61%
**89
100%
Winchester Supreme 780
<<locked>>
97%
47050
75%
**59
96%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2208
<<locked>>
81%
45687
73%
**90
100%
[ADI AR 2209]*
<<locked>>
82%
33257
53%
**93
90%
[ADI AR 2213]*
<<locked>>
91%
38377
62%
**31
90%
Accurate 2495
<<locked>>
81%
51779
83%
**20
100%
Accurate 2700
<<locked>>
81%
48675
78%
**00
97%
[Accurate 3100]*
<<locked>>
81%
27717
44%
**62
92%
Accurate 4064
<<locked>>
81%
48994
79%
**23
100%
Accurate 4350
<<locked>>
81%
36985
59%
**98
98%
[Accurate MAGPRO]*
<<locked>>
92%
39914
64%
**10
90%
Alliant Power Pro 2000-MR
<<locked>>
81%
49284
79%
**77
100%
Alliant Reloder- TS 15.5
<<locked>>
81%
46340
74%
**16
100%
Alliant Reloder-15
<<locked>>
81%
48747
78%
**72
100%
Alliant Reloder-16
<<locked>>
81%
35984
58%
**95
98%
Alliant Reloder-17
<<locked>>
81%
40379
65%
**13
100%
[Alliant Reloder-19]*
<<locked>>
82%
32924
53%
**90
90%
[Alliant Reloder-22]*
<<locked>>
87%
33054
53%
**36
90%
Alliant Reloder-23
<<locked>>
81%
26905
43%
**78
95%
[Alliant Reloder-25]*
<<locked>>
85%
27296
44%
**78
90%
[Alliant Reloder-26]*
<<locked>>
81%
28645
46%
**77
93%
[Bofors RP15]*
<<locked>>
89%
33156
53%
**36
90%
Bofors RP3
<<locked>>
81%
46717
75%
**33
100%
[Bofors RP5]*
<<locked>>
87%
33054
53%
**36
90%
Bofors RP7
<<locked>>
81%
41191
66%
**02
95%
Hodgdon H380
<<locked>>
81%
46659
75%
**30
99%
Hodgdon H414
<<locked>>
81%
38508
62%
**28
95%
Hodgdon H4350
<<locked>>
81%
41553
67%
**41
95%
[Hodgdon H4831]*
<<locked>>
89%
38798
62%
**02
90%
[Hodgdon H4831 SC]*
<<locked>>
90%
39233
63%
**08
90%
Hodgdon Hybrid 100V
<<locked>>
81%
33721
54%
**06
98%
Hodgdon LEVERevolution
<<locked>>
81%
50517
81%
**18
100%
[Hodgdon Superformance]*
<<locked>>
81%
37579
60%
**31
94%
Hodgdon TrailBoss
<<locked>>
83%
28921
46%
**80
100%
Hodgdon VARGET
<<locked>>
81%
51764
83%
**89
100%
IMR 4064
<<locked>>
81%
48138
77%
**16
100%
IMR 4166 Enduron
<<locked>>
81%
50314
81%
**39
98%
[IMR 4350]*
<<locked>>
81%
36709
59%
**33
94%
IMR 4451 Enduron
<<locked>>
81%
42395
68%
**25
96%
IMR 4831
<<locked>>
81%
35665
57%
**56
97%
IMR 4895
<<locked>>
81%
50067
80%
**98
100%
[IMR 4955 Enduron]*
<<locked>>
87%
37768
61%
**49
90%
[IMR 7828 SSC]*
<<locked>>
92%
38145
61%
**34
90%
Lovex S060
<<locked>>
81%
52475
84%
**49
100%
Lovex S062
<<locked>>
81%
48385
78%
**16
100%
Lovex S065
<<locked>>
81%
40147
64%
**88
97%
Lovex S070
<<locked>>
81%
38464
62%
**72
95%
[Lovex S071]*
<<locked>>
83%
25338
41%
**93
90%
Norma 201
<<locked>>
81%
52591
84%
**75
100%
Norma 203B
<<locked>>
81%
48298
77%
**62
100%
[Norma 204]*
<<locked>>
81%
35955
58%
**49
92%
[Norma MRP]*
<<locked>>
82%
30008
48%
**83
90%
Norma URP
<<locked>>
81%
36637
59%
**88
97%
Ramshot Big Game
<<locked>>
81%
48022
77%
**75
100%
[Ramshot Grand]*
<<locked>>
92%
38029
61%
**38
90%
Ramshot Hunter
<<locked>>
81%
35549
57%
**72
95%
[Ramshot Magnum]*
<<locked>>
91%
32387
52%
**00
90%
ReloadSwiss RS 14
<<locked>>
81%
28326
45%
**93
100%
ReloadSwiss RS 50
<<locked>>
81%
46833
75%
**13
98%
ReloadSwiss RS 52
<<locked>>
81%
52591
84%
**77
100%
ReloadSwiss RS 60
<<locked>>
81%
42699
68%
**66
100%
ReloadSwiss RS 62
<<locked>>
81%
36129
58%
**08
97%
ReloadSwiss RS 70
<<locked>>
81%
35462
57%
**02
96%
[ReloadSwiss RS 76]*
<<locked>>
93%
32663
52%
**56
90%
Rottweil R 902
<<locked>>
81%
50401
81%
**26
100%
Rottweil R 903
<<locked>>
81%
43961
70%
**80
100%
[Rottweil R 904]*
<<locked>>
84%
35882
58%
**16
90%
[Rottweil R 905]*
<<locked>>
83%
32213
52%
**80
90%
Rottweil R 907
<<locked>>
81%
41191
66%
**02
95%
SNPE Vectan SP 11
<<locked>>
81%
44382
71%
**23
100%
SNPE Vectan SP 9
<<locked>>
81%
51721
83%
**98
100%
SNPE Vectan Tubal 5000
<<locked>>
81%
45310
73%
**88
100%
SNPE Vectan Tubal 7000
<<locked>>
81%
39378
63%
**36
96%
[SNPE Vectan Tubal 8000]*
<<locked>>
83%
31952
51%
**80
90%
Shooters World Long Rifle
<<locked>>
81%
40147
64%
**88
97%
Shooters World Precision
<<locked>>
81%
48385
78%
**16
100%
Shooters World SW4350
<<locked>>
81%
38464
62%
**72
95%
Somchem S355
<<locked>>
81%
44034
71%
**74
100%
[Somchem S361]*
<<locked>>
85%
38508
62%
**52
90%
Somchem S365
<<locked>>
81%
33228
53%
**52
99%
[Somchem S385]*
<<locked>>
81%
31140
50%
**38
91%
Vihtavuori N135
<<locked>>
81%
48037
77%
**67
100%
Vihtavuori N140
<<locked>>
81%
50415
81%
**13
100%
Vihtavuori N150
<<locked>>
81%
42221
68%
**11
100%
Vihtavuori N160
<<locked>>
81%
37710
60%
**79
98%
[Vihtavuori N165]*
<<locked>>
85%
30937
50%
**15
90%
Vihtavuori N540
<<locked>>
81%
48370
78%
**03
100%
Vihtavuori N550
<<locked>>
81%
37391
60%
**88
97%
Vihtavuori N555
<<locked>>
81%
29298
47%
**57
96%
[Vihtavuori N560]*
<<locked>>
90%
38290
61%
**64
90%
Winchester 6.5 StaBALL
<<locked>>
81%
37173
60%
**59
99%
Winchester 760
<<locked>>
81%
38783
62%
**38
95%
[Winchester StaBALL HD]*
<<locked>>
81%
24265
39%
**49
93%
[Winchester Supreme 780]*
<<locked>>
85%
32808
53%
**67
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.

<<locked>>... you need to buy an access license to unlock the data

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