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Load data for 7 x 66 SE v. Hofe + .284 | 140gr | Impala RNFP KO

Recommended Powder(s): ADI AR 2209, Alliant Reloder-19, Alliant Reloder-25, Norma MRP, Rottweil R 905

7 x 66 SE v. Hofe + .284 | 140gr | Impala RNFP KO

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.284 | 140gr | Impala RNFP KO
Bullet Weight:
140gr | 9.1g
Bullet Diameter:
0.284" | 7.21mm
Bullet Length:
1.255" | 31.9mm
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:
0.596" | 15.1mm
Shank Seated Depth:
0.596" | 15.1mm
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_B2982_C1097
Last updated:
2025-01-01

Load data for 122 loads in caliber 7 x 66 SE v. Hofe with .284 | 140gr | Impala RNFP KO bullet and 61 powders such as ADI AR 2209, Alliant Reloder-19, Alliant Reloder-25, Norma MRP, Rottweil R 905. 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 2209 👍
<<locked>>
91%
56811
89%
**27
99%
ADI AR 2213
<<locked>>
94%
56956
89%
**63
98%
ADI AR 2217
<<locked>>
97%
45759
72%
**40
96%
ADI AR 2225
<<locked>>
97%
41336
65%
**97
98%
Accurate 3100
<<locked>>
94%
57029
89%
**61
100%
Accurate 4350
<<locked>>
85%
57174
90%
**81
100%
Accurate MAGPRO
<<locked>>
95%
56855
89%
**63
96%
Alliant Reloder-16
<<locked>>
87%
56768
89%
**27
100%
Alliant Reloder-19 👍
<<locked>>
91%
56971
89%
**14
99%
Alliant Reloder-22
<<locked>>
94%
57334
90%
**59
99%
Alliant Reloder-23
<<locked>>
96%
57174
90%
**14
100%
Alliant Reloder-25 👍
<<locked>>
97%
51242
80%
**84
100%
Alliant Reloder-26
<<locked>>
91%
56971
89%
**96
100%
Hodgdon H1000
<<locked>>
97%
45759
72%
**40
96%
Hodgdon H4350
<<locked>>
89%
57145
90%
**64
99%
Hodgdon H4831
<<locked>>
97%
56927
89%
**00
98%
Hodgdon H4831 SC
<<locked>>
93%
56536
89%
**87
97%
Hodgdon Hybrid 100V
<<locked>>
89%
56942
89%
**38
100%
Hodgdon LVR
<<locked>>
84%
56637
89%
**81
100%
Hodgdon Retumbo
<<locked>>
97%
41336
65%
**97
98%
Hodgdon Superperformance
<<locked>>
85%
57261
90%
**40
100%
Hodgdon TrailBoss
<<locked>>
96%
35621
56%
**16
100%
IMR 4350
<<locked>>
88%
57116
89%
**61
100%
IMR 4451 Enduron
<<locked>>
83%
56565
89%
**41
100%
IMR 4831
<<locked>>
91%
57232
90%
**74
100%
IMR 4955 Enduron
<<locked>>
94%
57305
90%
**74
98%
IMR 7828 SSC
<<locked>>
94%
57101
89%
**76
98%
[IMR 8133 Enduron]*
<<locked>>
97%
37420
59%
**92
93%
Lovex S065
<<locked>>
85%
57174
90%
**35
100%
Lovex S070
<<locked>>
86%
56811
89%
**54
100%
Lovex S071
<<locked>>
97%
52765
83%
**92
100%
Norma 204
<<locked>>
87%
57000
89%
**94
99%
Norma 217
<<locked>>
97%
37420
59%
**25
96%
Norma MRP 👍
<<locked>>
92%
57217
90%
**92
100%
Norma URP
<<locked>>
86%
56753
89%
**87
100%
Ramshot Hunter
<<locked>>
87%
57145
90%
**14
100%
Ramshot Magnum
<<locked>>
95%
57203
90%
**43
100%
ReloadSwiss RS 14
<<locked>>
96%
36434
57%
**62
100%
ReloadSwiss RS 60
<<locked>>
84%
57334
90%
**59
100%
ReloadSwiss RS 62
<<locked>>
86%
57217
90%
**07
100%
ReloadSwiss RS 70
<<locked>>
87%
57334
90%
**66
100%
ReloadSwiss RS 76
<<locked>>
97%
50589
79%
**33
100%
ReloadSwiss RS 80
<<locked>>
97%
46296
73%
**15
95%
Rottweil R 904
<<locked>>
90%
56507
89%
**61
98%
Rottweil R 905 👍
<<locked>>
92%
56782
89%
**14
99%
Rottweil R 907
<<locked>>
84%
56840
89%
**45
99%
SNPE Vectan Tubal 7000
<<locked>>
85%
57145
90%
**95
100%
Shooters World Long Rifle
<<locked>>
85%
57174
90%
**35
100%
Somchem S361
<<locked>>
90%
56927
89%
**28
97%
Somchem S365
<<locked>>
88%
57377
90%
**94
100%
Somchem S385
<<locked>>
91%
57000
89%
**74
99%
Vihtavuori N150
<<locked>>
87%
56826
89%
**79
100%
Vihtavuori N160
<<locked>>
84%
56927
89%
**48
100%
Vihtavuori N165
<<locked>>
97%
56594
89%
**61
99%
Vihtavuori N550
<<locked>>
84%
57072
89%
**84
100%
Vihtavuori N555
<<locked>>
92%
57348
90%
**17
100%
Vihtavuori N560
<<locked>>
94%
57363
90%
**79
98%
Vihtavuori N565
<<locked>>
97%
53722
84%
**94
97%
[Vihtavuori N568]*
<<locked>>
97%
47181
74%
**18
94%
Winchester 6.5 StaBALL
<<locked>>
86%
57130
90%
**22
100%
Winchester StaBALL HD
<<locked>>
97%
57014
89%
**41
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2209
<<locked>>
81%
40930
64%
**15
95%
[ADI AR 2213]*
<<locked>>
81%
36637
57%
**23
92%
[ADI AR 2217]*
<<locked>>
87%
33721
53%
**35
90%
[ADI AR 2225]*
<<locked>>
85%
28616
45%
**16
90%
Accurate 3100
<<locked>>
81%
37405
59%
**94
97%
Accurate 4350
<<locked>>
81%
49472
78%
**59
100%
[Accurate MAGPRO]*
<<locked>>
82%
37782
59%
**66
90%
Alliant Reloder-16
<<locked>>
81%
46456
73%
**46
100%
Alliant Reloder-19
<<locked>>
81%
41017
64%
**05
96%
[Alliant Reloder-22]*
<<locked>>
81%
36767
58%
**36
94%
Alliant Reloder-23
<<locked>>
81%
35418
55%
**13
99%
Alliant Reloder-25
<<locked>>
81%
31140
49%
**08
95%
Alliant Reloder-26
<<locked>>
81%
39059
61%
**58
99%
[Hodgdon H1000]*
<<locked>>
87%
33721
53%
**35
90%
Hodgdon H4350
<<locked>>
81%
44585
70%
**25
98%
[Hodgdon H4831]*
<<locked>>
81%
34780
54%
**25
90%
[Hodgdon H4831 SC]*
<<locked>>
81%
38392
60%
**23
92%
Hodgdon Hybrid 100V
<<locked>>
81%
44411
70%
**28
100%
Hodgdon LVR
<<locked>>
81%
51227
80%
**92
100%
[Hodgdon Retumbo]*
<<locked>>
85%
28616
45%
**16
90%
Hodgdon Superperformance
<<locked>>
81%
50372
79%
**18
99%
Hodgdon TrailBoss
<<locked>>
81%
28471
45%
**59
100%
IMR 4350
<<locked>>
81%
46702
73%
**74
98%
IMR 4451 Enduron
<<locked>>
81%
52678
83%
**69
99%
IMR 4831
<<locked>>
81%
42699
67%
**12
100%
[IMR 4955 Enduron]*
<<locked>>
81%
38551
60%
**90
92%
[IMR 7828 SSC]*
<<locked>>
81%
37536
59%
**59
92%
[IMR 8133 Enduron]*
<<locked>>
93%
32895
52%
**74
90%
Lovex S065
<<locked>>
81%
50560
79%
**23
100%
Lovex S070
<<locked>>
81%
48994
77%
**13
99%
Lovex S071
<<locked>>
81%
32416
51%
**56
95%
Norma 204
<<locked>>
81%
46905
73%
**17
97%
[Norma 217]*
<<locked>>
88%
28456
45%
**49
90%
Norma MRP
<<locked>>
81%
38450
60%
**12
96%
Norma URP
<<locked>>
81%
48298
76%
**40
100%
Ramshot Hunter
<<locked>>
81%
46775
73%
**23
99%
[Ramshot Magnum]*
<<locked>>
81%
34418
54%
**71
94%
ReloadSwiss RS 14
<<locked>>
81%
29240
46%
**01
100%
ReloadSwiss RS 60
<<locked>>
81%
52127
82%
**74
100%
ReloadSwiss RS 62
<<locked>>
81%
48965
77%
**66
100%
ReloadSwiss RS 70
<<locked>>
81%
46934
74%
**79
100%
[ReloadSwiss RS 76]*
<<locked>>
81%
29733
47%
**89
91%
[ReloadSwiss RS 80]*
<<locked>>
90%
36666
57%
**82
90%
Rottweil R 904
<<locked>>
81%
42163
66%
**85
95%
Rottweil R 905
<<locked>>
81%
40509
63%
**95
96%
Rottweil R 907
<<locked>>
81%
51401
81%
**49
99%
SNPE Vectan Tubal 7000
<<locked>>
81%
49719
78%
**74
99%
Shooters World Long Rifle
<<locked>>
81%
50560
79%
**23
100%
[Somchem S361]*
<<locked>>
81%
43091
68%
**69
94%
Somchem S365
<<locked>>
81%
45194
71%
**94
100%
Somchem S385
<<locked>>
81%
41060
64%
**76
97%
Vihtavuori N150
<<locked>>
81%
48225
76%
**44
100%
Vihtavuori N160
<<locked>>
81%
51329
80%
**59
100%
[Vihtavuori N165]*
<<locked>>
81%
34838
55%
**12
94%
Vihtavuori N550
<<locked>>
81%
52373
82%
**12
100%
Vihtavuori N555
<<locked>>
81%
40045
63%
**99
99%
[Vihtavuori N560]*
<<locked>>
81%
36985
58%
**62
92%
[Vihtavuori N565]*
<<locked>>
82%
33373
52%
**48
90%
[Vihtavuori N568]*
<<locked>>
90%
37492
59%
**92
90%
Winchester 6.5 StaBALL
<<locked>>
81%
48602
76%
**84
100%
Winchester StaBALL HD
<<locked>>
81%
31241
49%
**36
100%

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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