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Load data for 7 x 66 SE v. Hofe + .284 | 145gr | Hasler ARIETE

Recommended Powder(s): Alliant Reloder-26, Ramshot Hunter, Somchem S385, Vihtavuori N555, Winchester StaBALL HD

7 x 66 SE v. Hofe + .284 | 145gr | Hasler ARIETE

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.284 | 145gr | Hasler ARIETE
Manufacturer SKU:
A7-145
Bullet Weight:
145gr | 9.4g
Bullet Diameter:
0.284" | 7.21mm
Bullet Length:
1.421" | 36.1mm
Caliber:
7 x 66 SE v. Hofe load data
Case Length (l3):
2.598" | 66.0mm
Cartridge Length (C.O.L.):
3.257" | 82.7mm
Seated Depth:
0.762" | 19.3mm
Shank Seated Depth:
0.591" | 15.0mm
Case Capacity:
93.0 Grains of Water | 6.04 cm³
Primer Size:
Large Rifle Magnum (LRM)
Max. allowed Pressure:
63817 psi | 4400 bar
LID:
LID_B7065_C1097
Last updated:
2025-01-01
Recommended Twist Rate:
1:9 - 1:8

Load data for 148 loads in caliber 7 x 66 SE v. Hofe with .284 | 145gr | Hasler ARIETE bullet and 74 powders such as Alliant Reloder-26, Ramshot Hunter, Somchem S385, 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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    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.

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>>
84%
57087
89%
**92
100%
ADI AR 2209
<<locked>>
94%
57159
90%
**87
99%
ADI AR 2213
<<locked>>
97%
56318
88%
**14
98%
[ADI AR 2217]*
<<locked>>
97%
40915
64%
**02
94%
ADI AR 2225
<<locked>>
97%
36245
57%
**46
96%
Accurate 2700
<<locked>>
84%
57058
89%
**59
99%
Accurate 3100
<<locked>>
97%
55419
87%
**05
100%
Accurate 4350
<<locked>>
89%
57377
90%
**58
100%
Accurate MAGPRO
<<locked>>
97%
56028
88%
**23
97%
Alliant Reloder- TS 15.5
<<locked>>
83%
57290
90%
**99
100%
Alliant Reloder-16
<<locked>>
90%
57261
90%
**04
100%
Alliant Reloder-17
<<locked>>
85%
56724
89%
**81
100%
Alliant Reloder-19
<<locked>>
94%
57116
90%
**84
99%
Alliant Reloder-22
<<locked>>
97%
55811
87%
**07
99%
Alliant Reloder-23
<<locked>>
97%
53200
83%
**25
100%
Alliant Reloder-25
<<locked>>
97%
45832
72%
**59
100%
Alliant Reloder-26 👍
<<locked>>
94%
57377
90%
**69
100%
[Hodgdon H1000]*
<<locked>>
97%
40915
64%
**02
94%
Hodgdon H414
<<locked>>
85%
57421
90%
**81
100%
Hodgdon H4350
<<locked>>
92%
56913
89%
**28
100%
Hodgdon H4831
<<locked>>
97%
52011
81%
**76
97%
Hodgdon H4831 SC
<<locked>>
95%
56623
89%
**54
98%
Hodgdon Hybrid 100V
<<locked>>
92%
57116
90%
**15
100%
Hodgdon LVR
<<locked>>
87%
57159
90%
**58
100%
Hodgdon Retumbo
<<locked>>
97%
36245
57%
**46
96%
Hodgdon Superperformance
<<locked>>
87%
57188
90%
**00
100%
Hodgdon VARGET
<<locked>>
84%
56797
89%
**89
100%
Hodgdon TrailBoss
<<locked>>
97%
35143
55%
**77
100%
IMR 4064
<<locked>>
84%
56913
89%
**79
100%
IMR 4166 Enduron
<<locked>>
85%
56956
89%
**86
100%
IMR 4350
<<locked>>
90%
57276
90%
**28
100%
IMR 4451 Enduron
<<locked>>
86%
57305
90%
**22
100%
IMR 4831
<<locked>>
94%
56739
89%
**31
100%
IMR 4955 Enduron
<<locked>>
96%
56797
89%
**25
98%
IMR 7828 SSC
<<locked>>
96%
56695
89%
**27
98%
Lovex S065
<<locked>>
88%
56927
89%
**05
100%
Lovex S070
<<locked>>
89%
56985
89%
**28
100%
Lovex S071
<<locked>>
97%
46151
72%
**48
99%
Norma 204
<<locked>>
89%
57116
89%
**64
99%
[Norma 217]*
<<locked>>
97%
31618
50%
**41
93%
Norma MRP
<<locked>>
95%
56913
89%
**46
100%
Norma URP
<<locked>>
89%
57188
90%
**64
100%
Ramshot Hunter 👍
<<locked>>
90%
56985
89%
**77
100%
Ramshot Magnum
<<locked>>
97%
55390
87%
**84
100%
ReloadSwiss RS 14
<<locked>>
97%
35810
56%
**16
100%
ReloadSwiss RS 60
<<locked>>
86%
57290
90%
**20
100%
ReloadSwiss RS 62
<<locked>>
88%
57116
90%
**77
100%
ReloadSwiss RS 70
<<locked>>
89%
57334
90%
**33
100%
ReloadSwiss RS 76
<<locked>>
97%
44657
70%
**79
99%
[ReloadSwiss RS 80]*
<<locked>>
97%
39827
62%
**44
92%
Rottweil R 903
<<locked>>
84%
56782
89%
**99
100%
Rottweil R 904
<<locked>>
93%
57276
90%
**35
98%
Rottweil R 905
<<locked>>
94%
56536
89%
**68
99%
Rottweil R 907
<<locked>>
87%
56913
89%
**09
100%
SNPE Vectan SP 11
<<locked>>
83%
57145
90%
**31
100%
SNPE Vectan Tubal 5000
<<locked>>
84%
56855
89%
**61
100%
SNPE Vectan Tubal 7000
<<locked>>
88%
57392
90%
**72
100%
Shooters World Long Rifle
<<locked>>
88%
56927
89%
**05
100%
Somchem S355
<<locked>>
84%
56855
89%
**89
100%
Somchem S361
<<locked>>
92%
57305
90%
**09
98%
Somchem S365
<<locked>>
91%
57305
90%
**51
100%
Somchem S385 👍
<<locked>>
94%
56739
89%
**38
100%
Vihtavuori N135
<<locked>>
86%
57029
89%
**00
100%
Vihtavuori N150
<<locked>>
89%
56753
89%
**49
100%
Vihtavuori N160
<<locked>>
87%
57421
90%
**25
100%
Vihtavuori N165
<<locked>>
97%
52054
82%
**49
99%
Vihtavuori N550
<<locked>>
87%
57159
90%
**58
100%
Vihtavuori N555 👍
<<locked>>
96%
57305
90%
**77
100%
Vihtavuori N560
<<locked>>
97%
56579
89%
**36
98%
Vihtavuori N565
<<locked>>
97%
47703
75%
**56
96%
[Vihtavuori N568]*
<<locked>>
97%
41582
65%
**67
92%
Winchester 6.5 StaBALL
<<locked>>
88%
57101
89%
**82
100%
Winchester 760
<<locked>>
85%
57421
90%
**81
100%
Winchester StaBALL HD 👍
<<locked>>
97%
50459
79%
**04
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2208
<<locked>>
81%
52678
83%
**23
100%
[ADI AR 2209]*
<<locked>>
81%
36564
57%
**74
94%
[ADI AR 2213]*
<<locked>>
82%
33489
52%
**12
90%
[ADI AR 2217]*
<<locked>>
91%
33417
52%
**05
90%
[ADI AR 2225]*
<<locked>>
90%
28108
44%
**84
90%
Accurate 2700
<<locked>>
81%
50502
79%
**58
99%
Accurate 3100
<<locked>>
81%
31459
49%
**16
95%
Accurate 4350
<<locked>>
81%
43250
68%
**08
100%
[Accurate MAGPRO]*
<<locked>>
86%
37231
58%
**36
90%
Alliant Reloder- TS 15.5
<<locked>>
81%
53548
84%
**46
100%
Alliant Reloder-16
<<locked>>
81%
42148
66%
**35
100%
Alliant Reloder-17
<<locked>>
81%
49110
77%
**66
100%
[Alliant Reloder-19]*
<<locked>>
81%
36390
57%
**67
94%
[Alliant Reloder-22]*
<<locked>>
81%
32053
50%
**95
92%
Alliant Reloder-23
<<locked>>
81%
30661
48%
**56
98%
[Alliant Reloder-25]*
<<locked>>
81%
26629
42%
**44
92%
Alliant Reloder-26
<<locked>>
81%
33489
52%
**90
97%
[Hodgdon H1000]*
<<locked>>
91%
33417
52%
**05
90%
Hodgdon H414
<<locked>>
81%
49879
78%
**56
99%
Hodgdon H4350
<<locked>>
81%
40393
63%
**13
97%
[Hodgdon H4831]*
<<locked>>
84%
34185
54%
**89
90%
[Hodgdon H4831 SC]*
<<locked>>
81%
34185
54%
**89
90%
Hodgdon Hybrid 100V
<<locked>>
81%
39639
62%
**17
100%
Hodgdon LVR
<<locked>>
81%
46340
73%
**74
100%
[Hodgdon Retumbo]*
<<locked>>
90%
28108
44%
**84
90%
Hodgdon Superperformance
<<locked>>
81%
45281
71%
**00
98%
Hodgdon VARGET
<<locked>>
81%
52315
82%
**23
100%
Hodgdon TrailBoss
<<locked>>
81%
27746
43%
**13
100%
IMR 4064
<<locked>>
81%
51750
81%
**04
100%
IMR 4166 Enduron
<<locked>>
81%
50488
79%
**81
99%
IMR 4350
<<locked>>
81%
42380
66%
**56
97%
IMR 4451 Enduron
<<locked>>
81%
48834
77%
**71
99%
IMR 4831
<<locked>>
81%
37536
59%
**74
99%
[IMR 4955 Enduron]*
<<locked>>
81%
34621
54%
**66
91%
[IMR 7828 SSC]*
<<locked>>
81%
33069
52%
**18
90%
Lovex S065
<<locked>>
81%
45716
72%
**08
99%
Lovex S070
<<locked>>
81%
43947
69%
**92
98%
[Lovex S071]*
<<locked>>
81%
26672
42%
**79
92%
Norma 204
<<locked>>
81%
42308
66%
**92
96%
[Norma 217]*
<<locked>>
94%
28152
44%
**26
90%
[Norma MRP]*
<<locked>>
81%
33417
52%
**61
94%
Norma URP
<<locked>>
81%
43047
67%
**15
100%
Ramshot Hunter
<<locked>>
81%
41959
66%
**05
98%
[Ramshot Magnum]*
<<locked>>
81%
29254
46%
**03
91%
ReloadSwiss RS 14
<<locked>>
81%
28369
44%
**55
100%
ReloadSwiss RS 60
<<locked>>
81%
47297
74%
**53
100%
ReloadSwiss RS 62
<<locked>>
81%
43642
68%
**44
100%
ReloadSwiss RS 70
<<locked>>
81%
42192
66%
**54
99%
[ReloadSwiss RS 76]*
<<locked>>
85%
28558
45%
**26
90%
[ReloadSwiss RS 80]*
<<locked>>
94%
35911
56%
**33
90%
Rottweil R 903
<<locked>>
81%
50734
80%
**04
100%
[Rottweil R 904]*
<<locked>>
81%
38072
60%
**67
93%
[Rottweil R 905]*
<<locked>>
81%
35462
56%
**54
94%
Rottweil R 907
<<locked>>
81%
46876
73%
**31
98%
SNPE Vectan SP 11
<<locked>>
81%
52663
83%
**63
100%
SNPE Vectan Tubal 5000
<<locked>>
81%
51648
81%
**92
100%
SNPE Vectan Tubal 7000
<<locked>>
81%
44875
70%
**53
98%
Shooters World Long Rifle
<<locked>>
81%
45716
72%
**08
99%
Somchem S355
<<locked>>
81%
50923
80%
**04
100%
[Somchem S361]*
<<locked>>
81%
38711
61%
**57
93%
Somchem S365
<<locked>>
81%
39595
62%
**66
100%
Somchem S385
<<locked>>
81%
36158
57%
**41
95%
Vihtavuori N135
<<locked>>
81%
49371
77%
**92
100%
Vihtavuori N150
<<locked>>
81%
43526
68%
**33
100%
Vihtavuori N160
<<locked>>
81%
46470
73%
**44
100%
[Vihtavuori N165]*
<<locked>>
81%
30066
47%
**70
92%
Vihtavuori N550
<<locked>>
81%
47108
74%
**87
100%
Vihtavuori N555
<<locked>>
81%
34374
54%
**44
98%
[Vihtavuori N560]*
<<locked>>
83%
34185
54%
**64
90%
[Vihtavuori N565]*
<<locked>>
87%
33040
52%
**21
90%
[Vihtavuori N568]*
<<locked>>
94%
37086
58%
**59
90%
Winchester 6.5 StaBALL
<<locked>>
81%
43874
69%
**72
100%
Winchester 760
<<locked>>
81%
49879
78%
**56
99%
Winchester StaBALL HD
<<locked>>
81%
25744
40%
**43
98%

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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