top of page

Load data for .260 Ackley Improved + .264 | 159gr | RWS TMR

Recommended Powder(s):

.260 Ackley Improved + .264 | 159gr | RWS TMR

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.264 | 159gr | RWS TMR
Manufacturer SKU:
2145685
Bullet Weight:
159gr | 10.3g
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_B5382_C995
Last updated:
2026-07-02

Load data for 164 loads in caliber .260 Ackley Improved with .264 | 159gr | RWS TMR bullet and 82 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.

    .

    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 AR 2208
<<locked>>
85%
55230
89%
**10
100%
ADI AR 2209
<<locked>>
96%
55361
89%
**12
99%
ADI AR 2213
<<locked>>
97%
50154
80%
**62
97%
[ADI AR 2217]*
<<locked>>
97%
36347
58%
**87
92%
[ADI AR 2225]*
<<locked>>
96%
31995
51%
**44
94%
Accurate 3100
<<locked>>
97%
48791
78%
**80
100%
Accurate 4064
<<locked>>
83%
55187
88%
**74
100%
Accurate 4350
<<locked>>
91%
55738
89%
**79
100%
Accurate MAGPRO
<<locked>>
97%
50952
82%
**12
96%
Alliant Reloder- TS 15.5
<<locked>>
85%
55927
90%
**26
100%
Alliant Reloder-16
<<locked>>
93%
55477
89%
**21
100%
Alliant Reloder-17
<<locked>>
88%
55970
90%
**31
100%
Alliant Reloder-19
<<locked>>
97%
54911
88%
**02
99%
Alliant Reloder-22
<<locked>>
97%
48979
79%
**66
98%
Alliant Reloder-23
<<locked>>
97%
46775
75%
**10
100%
Alliant Reloder-25
<<locked>>
96%
40030
64%
**28
99%
Alliant Reloder-26 👍
<<locked>>
97%
52605
84%
**71
100%
[Baschieri & Pellagri 109]*
<<locked>>
96%
49269
79%
**70
93%
Bofors RP15
<<locked>>
97%
44730
72%
**87
97%
Bofors RP3
<<locked>>
84%
54940
88%
**20
100%
[Bofors RP30]*
<<locked>>
97%
36390
58%
**52
94%
Bofors RP5
<<locked>>
97%
48979
79%
**66
98%
Bofors RP7
<<locked>>
89%
56014
90%
**33
100%
Hodgdon H1000
<<locked>>
97%
40219
64%
**82
95%
Hodgdon H380
<<locked>>
84%
55434
89%
**43
100%
Hodgdon H414 👍
<<locked>>
90%
56057
90%
**08
100%
Hodgdon H4350
<<locked>>
88%
55869
90%
**72
99%
Hodgdon H4831
<<locked>>
97%
53853
86%
**66
97%
Hodgdon H4831 SC
<<locked>>
97%
52620
84%
**46
97%
Hodgdon Hybrid 100V
<<locked>>
94%
55129
88%
**36
100%
Hodgdon Retumbo
<<locked>>
96%
39030
63%
**51
96%
Hodgdon Superformance 👍
<<locked>>
90%
54839
88%
**31
100%
Hodgdon TrailBoss
<<locked>>
97%
35143
56%
**22
100%
IMR 4064
<<locked>>
84%
55811
89%
**07
100%
IMR 4350
<<locked>>
92%
55535
89%
**52
100%
IMR 4451 Enduron
<<locked>>
88%
55477
89%
**30
100%
IMR 4831
<<locked>>
93%
56115
90%
**69
100%
IMR 4955 Enduron
<<locked>>
96%
54708
88%
**43
97%
IMR 7828 SSC
<<locked>>
96%
47282
76%
**33
97%
Lovex S062
<<locked>>
84%
55709
89%
**90
100%
Lovex S065
<<locked>>
90%
55970
90%
**33
100%
Lovex S070
<<locked>>
91%
55753
89%
**52
100%
Lovex S071
<<locked>>
97%
41249
66%
**59
99%
Norma 204
<<locked>>
92%
56028
90%
**92
99%
Norma MRP
<<locked>>
96%
51053
82%
**21
100%
Norma URP
<<locked>>
92%
55651
89%
**85
100%
Ramshot Grand
<<locked>>
97%
47210
76%
**36
97%
Ramshot Hunter 👍
<<locked>>
92%
54969
88%
**98
100%
Ramshot Magnum
<<locked>>
97%
42496
68%
**41
98%
ReloadSwiss RS 14
<<locked>>
97%
35853
57%
**58
100%
ReloadSwiss RS 50
<<locked>>
84%
55100
88%
**26
100%
ReloadSwiss RS 60
<<locked>>
86%
55564
89%
**18
100%
ReloadSwiss RS 62
<<locked>>
91%
55622
89%
**05
100%
ReloadSwiss RS 70
<<locked>>
92%
55985
90%
**64
100%
ReloadSwiss RS 76
<<locked>>
97%
38827
62%
**48
97%
Rottweil R 903
<<locked>>
86%
55477
89%
**20
100%
Rottweil R 904
<<locked>>
96%
55999
90%
**69
98%
Rottweil R 905
<<locked>>
97%
54172
87%
**89
99%
Rottweil R 907
<<locked>>
89%
56014
90%
**33
100%
SNPE Vectan SP 11
<<locked>>
86%
55695
89%
**62
100%
SNPE Vectan Tubal 5000
<<locked>>
86%
55985
90%
**05
100%
SNPE Vectan Tubal 7000
<<locked>>
90%
54650
88%
**77
100%
SNPE Vectan Tubal 8000
<<locked>>
97%
53708
86%
**85
99%
Shooters World Long Rifle
<<locked>>
90%
55970
90%
**33
100%
Shooters World Precision
<<locked>>
84%
55709
89%
**90
100%
Shooters World SW4350
<<locked>>
91%
55753
89%
**52
100%
Somchem S355
<<locked>>
87%
55854
90%
**23
100%
Somchem S361
<<locked>>
95%
55593
89%
**33
97%
Somchem S365
<<locked>>
94%
55753
89%
**98
100%
Somchem S385
<<locked>>
97%
55245
89%
**79
100%
Vihtavuori N135
<<locked>>
84%
56043
90%
**38
100%
Vihtavuori N150
<<locked>>
88%
55550
89%
**80
100%
Vihtavuori N160
<<locked>>
91%
55259
89%
**43
100%
Vihtavuori N165
<<locked>>
97%
47297
76%
**51
98%
Vihtavuori N550
<<locked>>
92%
56101
90%
**79
100%
Vihtavuori N555
<<locked>>
97%
52025
83%
**69
100%
Vihtavuori N560
<<locked>>
96%
51576
83%
**15
97%
Vihtavuori N565
<<locked>>
97%
41263
66%
**38
95%
Winchester 6.5 StaBALL
<<locked>>
91%
55651
89%
**30
100%
Winchester 760 👍
<<locked>>
90%
56057
90%
**08
100%
Winchester StaBALL HD
<<locked>>
97%
40930
66%
**52
100%
Winchester Supreme 780
<<locked>>
97%
51445
82%
**20
98%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2208
<<locked>>
81%
48675
78%
**18
100%
[ADI AR 2209]*
<<locked>>
81%
33446
54%
**11
93%
[ADI AR 2213]*
<<locked>>
84%
32445
52%
**05
90%
[ADI AR 2217]*
<<locked>>
93%
32619
52%
**98
90%
[ADI AR 2225]*
<<locked>>
91%
27079
43%
**03
90%
Accurate 3100
<<locked>>
81%
29080
47%
**06
95%
Accurate 4064
<<locked>>
81%
51764
83%
**34
100%
Accurate 4350
<<locked>>
81%
39624
64%
**33
99%
[Accurate MAGPRO]*
<<locked>>
85%
33707
54%
**77
90%
Alliant Reloder- TS 15.5
<<locked>>
81%
49211
79%
**38
100%
Alliant Reloder-16
<<locked>>
81%
38159
61%
**36
99%
Alliant Reloder-17
<<locked>>
81%
43816
70%
**54
100%
[Alliant Reloder-19]*
<<locked>>
81%
33489
54%
**11
93%
[Alliant Reloder-22]*
<<locked>>
81%
29167
47%
**49
91%
Alliant Reloder-23
<<locked>>
81%
28297
45%
**36
98%
[Alliant Reloder-25]*
<<locked>>
81%
24729
40%
**28
92%
Alliant Reloder-26
<<locked>>
81%
30037
48%
**38
97%
[Baschieri & Pellagri 109]*
<<locked>>
91%
41394
66%
**26
90%
[Bofors RP15]*
<<locked>>
82%
27905
45%
**10
90%
Bofors RP3
<<locked>>
81%
49255
79%
**44
100%
[Bofors RP30]*
<<locked>>
91%
30008
48%
**98
90%
[Bofors RP5]*
<<locked>>
81%
29167
47%
**49
91%
Bofors RP7
<<locked>>
81%
43439
70%
**39
98%
[Hodgdon H1000]*
<<locked>>
89%
31111
50%
**62
90%
Hodgdon H380
<<locked>>
81%
49937
80%
**64
100%
Hodgdon H414
<<locked>>
81%
41394
66%
**79
98%
Hodgdon H4350
<<locked>>
81%
44193
71%
**88
97%
[Hodgdon H4831]*
<<locked>>
82%
33170
53%
**85
90%
[Hodgdon H4831 SC]*
<<locked>>
83%
33170
53%
**85
90%
Hodgdon Hybrid 100V
<<locked>>
81%
35955
58%
**41
100%
[Hodgdon Retumbo]*
<<locked>>
87%
29109
47%
**88
90%
Hodgdon Superformance
<<locked>>
81%
40379
65%
**92
97%
Hodgdon TrailBoss
<<locked>>
93%
33214
53%
**90
100%
IMR 4064
<<locked>>
81%
51271
82%
**48
100%
IMR 4350
<<locked>>
81%
38899
62%
**80
97%
IMR 4451 Enduron
<<locked>>
81%
44962
72%
**69
98%
IMR 4831
<<locked>>
81%
37768
61%
**90
99%
[IMR 4955 Enduron]*
<<locked>>
81%
33692
54%
**69
91%
[IMR 7828 SSC]*
<<locked>>
84%
31966
51%
**01
90%
Lovex S062
<<locked>>
81%
51126
82%
**34
100%
Lovex S065
<<locked>>
81%
42656
68%
**26
99%
Lovex S070
<<locked>>
81%
40625
65%
**13
98%
[Lovex S071]*
<<locked>>
81%
25048
40%
**95
93%
Norma 204
<<locked>>
81%
38551
62%
**06
95%
[Norma MRP]*
<<locked>>
81%
30197
48%
**05
94%
Norma URP
<<locked>>
81%
39131
63%
**29
99%
[Ramshot Grand]*
<<locked>>
85%
31734
51%
**08
90%
Ramshot Hunter
<<locked>>
81%
38072
61%
**23
98%
[Ramshot Magnum]*
<<locked>>
84%
27340
44%
**90
90%
ReloadSwiss RS 14
<<locked>>
89%
32082
51%
**93
100%
ReloadSwiss RS 50
<<locked>>
81%
49603
80%
**48
100%
ReloadSwiss RS 60
<<locked>>
81%
46528
75%
**97
100%
ReloadSwiss RS 62
<<locked>>
81%
39131
63%
**52
99%
ReloadSwiss RS 70
<<locked>>
81%
37695
60%
**56
99%
[ReloadSwiss RS 76]*
<<locked>>
87%
27804
45%
**49
91%
Rottweil R 903
<<locked>>
81%
46717
75%
**02
100%
[Rottweil R 904]*
<<locked>>
81%
34867
56%
**01
93%
[Rottweil R 905]*
<<locked>>
81%
32358
52%
**95
93%
Rottweil R 907
<<locked>>
81%
43439
70%
**39
98%
SNPE Vectan SP 11
<<locked>>
81%
48008
77%
**51
100%
SNPE Vectan Tubal 5000
<<locked>>
81%
48022
77%
**06
100%
SNPE Vectan Tubal 7000
<<locked>>
81%
41379
66%
**77
98%
[SNPE Vectan Tubal 8000]*
<<locked>>
81%
32053
51%
**95
93%
Shooters World Long Rifle
<<locked>>
81%
42656
68%
**26
99%
Shooters World Precision
<<locked>>
81%
51126
82%
**34
100%
Shooters World SW4350
<<locked>>
81%
40625
65%
**13
98%
Somchem S355
<<locked>>
81%
47195
76%
**02
100%
[Somchem S361]*
<<locked>>
81%
35114
56%
**85
91%
Somchem S365
<<locked>>
81%
35389
57%
**87
100%
Somchem S385
<<locked>>
81%
32793
53%
**85
95%
Vihtavuori N135
<<locked>>
81%
51242
82%
**82
100%
Vihtavuori N150
<<locked>>
81%
44802
72%
**33
100%
Vihtavuori N160
<<locked>>
81%
40698
65%
**26
99%
[Vihtavuori N165]*
<<locked>>
81%
28558
46%
**77
92%
Vihtavuori N550
<<locked>>
81%
40103
64%
**29
99%
Vihtavuori N555
<<locked>>
81%
31125
50%
**01
98%
[Vihtavuori N560]*
<<locked>>
83%
32822
53%
**44
90%
[Vihtavuori N565]*
<<locked>>
88%
31125
50%
**15
90%
Winchester 6.5 StaBALL
<<locked>>
81%
39595
63%
**93
100%
Winchester 760
<<locked>>
81%
41394
66%
**79
98%
Winchester StaBALL HD
<<locked>>
81%
24932
40%
**23
98%
[Winchester Supreme 780]*
<<locked>>
81%
30095
48%
**13
92%

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

bottom of page