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Load data for 7 x 66 SE v. Hofe + .284 | 142gr | Lehigh Defense Controlled Chaos

Recommended Powder(s): ADI AR 2209, Alliant Reloder-19, Alliant Reloder-26, Norma MRP, Rottweil R 905

7 x 66 SE v. Hofe + .284 | 142gr | Lehigh Defense Controlled Chaos

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.284 | 142gr | Lehigh Defense Controlled Chaos
Manufacturer SKU:
284142CuSP
Bullet Weight:
142gr | 9.2g
Bullet Diameter:
0.284" | 7.21mm
Bullet Length:
<<locked>>
Caliber:
7 x 66 SE v. Hofe load data
Case Length (l3):
2.598" | 66.0mm
Cartridge Length (C.O.L.):
<<locked>>
Seated Depth:
<<locked>>
Shank Seated Depth:
<<locked>>
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_B11015_C1097
Last updated:
2025-11-04
Recommended Twist Rate:
1:10 - 1:8

Load data for 0 loads in caliber 7 x 66 SE v. Hofe with .284 | 142gr | Lehigh Defense Controlled Chaos bullet and 0 powders such as ADI AR 2209, Alliant Reloder-19, Alliant Reloder-26, 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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  • 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>>
83%
57072
89%
**15
100%
ADI AR 2209
<<locked>>
93%
57319
90%
**17
99%
ADI AR 2213
<<locked>>
96%
56797
89%
**53
98%
[ADI AR 2217]*
<<locked>>
97%
41669
65%
**31
94%
ADI AR 2225
<<locked>>
97%
37275
58%
**92
96%
Accurate 2700
<<locked>>
84%
57319
90%
**92
99%
Accurate 3100
<<locked>>
97%
56695
89%
**45
100%
Accurate 4350
<<locked>>
88%
57159
90%
**77
100%
Accurate MAGPRO
<<locked>>
97%
56971
89%
**53
97%
Alliant Reloder-16
<<locked>>
89%
57000
89%
**23
100%
Alliant Reloder-17
<<locked>>
84%
56666
89%
**17
100%
Alliant Reloder-19
<<locked>>
94%
57276
90%
**14
99%
Alliant Reloder-22 👍
<<locked>>
97%
57348
90%
**59
99%
Alliant Reloder-23
<<locked>>
97%
54752
86%
**77
100%
Alliant Reloder-25
<<locked>>
97%
46963
74%
**02
100%
Alliant Reloder-26 👍
<<locked>>
94%
57072
89%
**96
100%
Baschieri & Pellagri 109
<<locked>>
97%
56188
88%
**54
95%
Bofors RP15
<<locked>>
97%
52228
82%
**71
98%
Bofors RP30
<<locked>>
97%
43482
68%
**30
96%
Bofors RP5
<<locked>>
97%
57348
90%
**59
99%
Bofors RP7
<<locked>>
86%
56942
89%
**31
99%
Hodgdon H1000
<<locked>>
97%
46137
72%
**40
97%
Hodgdon H414
<<locked>>
87%
57406
90%
**14
100%
Hodgdon H4350
<<locked>>
85%
57392
90%
**77
99%
Hodgdon H4831
<<locked>>
94%
56884
89%
**84
98%
Hodgdon H4831 SC
<<locked>>
95%
57130
90%
**97
98%
Hodgdon Hybrid 100V
<<locked>>
91%
56985
89%
**35
100%
Hodgdon Retumbo
<<locked>>
97%
46151
72%
**45
98%
Hodgdon Superperformance
<<locked>>
87%
57232
90%
**30
100%
Hodgdon TrailBoss
<<locked>>
97%
35375
55%
**03
100%
IMR 4350
<<locked>>
89%
56768
89%
**48
100%
IMR 4451 Enduron
<<locked>>
86%
57246
90%
**45
100%
IMR 4831
<<locked>>
90%
56927
89%
**58
100%
IMR 4955 Enduron
<<locked>>
94%
56985
89%
**54
98%
IMR 7828 SSC
<<locked>>
97%
55288
87%
**33
98%
Lovex S065
<<locked>>
87%
57087
89%
**28
100%
Lovex S070
<<locked>>
88%
57000
89%
**51
100%
Lovex S071
<<locked>>
97%
47877
75%
**00
99%
Norma 204
<<locked>>
89%
57188
90%
**91
99%
[Norma 217]*
<<locked>>
97%
32880
52%
**94
93%
Norma MRP 👍
<<locked>>
95%
56956
89%
**73
100%
Norma URP
<<locked>>
89%
57174
90%
**87
100%
Ramshot Grand
<<locked>>
97%
56304
88%
**56
98%
Ramshot Hunter
<<locked>>
89%
57392
90%
**14
100%
Ramshot Magnum
<<locked>>
97%
50401
79%
**15
99%
ReloadSwiss RS 14
<<locked>>
96%
35766
56%
**42
100%
ReloadSwiss RS 62
<<locked>>
88%
56739
89%
**97
100%
ReloadSwiss RS 70
<<locked>>
88%
56666
89%
**46
100%
ReloadSwiss RS 76
<<locked>>
97%
46369
73%
**38
99%
[ReloadSwiss RS 80]*
<<locked>>
97%
41234
65%
**94
93%
Rottweil R 903
<<locked>>
84%
57058
89%
**28
100%
Rottweil R 904
<<locked>>
93%
56985
89%
**64
98%
Rottweil R 905
<<locked>>
94%
56840
89%
**00
99%
Rottweil R 907
<<locked>>
86%
56942
89%
**31
99%
SNPE Vectan Tubal 5000
<<locked>>
84%
56826
89%
**87
100%
SNPE Vectan Tubal 7000
<<locked>>
88%
57130
90%
**92
100%
Shooters World Long Rifle
<<locked>>
87%
57087
89%
**28
100%
Somchem S355
<<locked>>
84%
56927
89%
**15
100%
Somchem S361
<<locked>>
92%
57290
90%
**31
98%
Somchem S365
<<locked>>
91%
57058
89%
**74
100%
Somchem S385 👍
<<locked>>
94%
56753
89%
**68
100%
Vihtavuori N150
<<locked>>
85%
56826
89%
**69
100%
Vihtavuori N160
<<locked>>
88%
56956
89%
**48
100%
Vihtavuori N165
<<locked>>
97%
55317
87%
**31
99%
Vihtavuori N550
<<locked>>
88%
57029
89%
**61
100%
Vihtavuori N555
<<locked>>
95%
56739
89%
**97
100%
Vihtavuori N560
<<locked>>
95%
56985
89%
**73
98%
Vihtavuori N565
<<locked>>
97%
49110
77%
**12
96%
[Vihtavuori N568]*
<<locked>>
97%
43004
67%
**17
93%
Winchester 6.5 StaBALL
<<locked>>
88%
57246
90%
**12
100%
Winchester 760
<<locked>>
87%
57406
90%
**14
100%
Winchester StaBALL HD 👍
<<locked>>
97%
51663
81%
**43
100%
Winchester Supreme 780
<<locked>>
95%
56768
89%
**64
99%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2208
<<locked>>
81%
53432
84%
**66
100%
[ADI AR 2209]*
<<locked>>
81%
37710
59%
**30
94%
[ADI AR 2213]*
<<locked>>
81%
33823
53%
**38
90%
[ADI AR 2217]*
<<locked>>
90%
33692
53%
**28
90%
[ADI AR 2225]*
<<locked>>
89%
28485
45%
**16
90%
Accurate 2700
<<locked>>
81%
51605
81%
**00
99%
Accurate 3100
<<locked>>
81%
32938
52%
**79
96%
Accurate 4350
<<locked>>
81%
44860
70%
**71
100%
[Accurate MAGPRO]*
<<locked>>
86%
37855
59%
**69
90%
Alliant Reloder-16
<<locked>>
81%
43091
68%
**74
100%
Alliant Reloder-17
<<locked>>
81%
49980
78%
**09
100%
[Alliant Reloder-19]*
<<locked>>
81%
37478
59%
**23
94%
[Alliant Reloder-22]*
<<locked>>
81%
33040
52%
**41
92%
Alliant Reloder-23
<<locked>>
81%
31647
50%
**08
99%
[Alliant Reloder-25]*
<<locked>>
81%
27673
43%
**90
93%
Alliant Reloder-26
<<locked>>
81%
34519
54%
**36
98%
[Baschieri & Pellagri 109]*
<<locked>>
88%
41843
66%
**59
90%
[Bofors RP15]*
<<locked>>
81%
30632
48%
**62
90%
[Bofors RP30]*
<<locked>>
88%
31763
50%
**21
90%
[Bofors RP5]*
<<locked>>
81%
33040
52%
**41
92%
Bofors RP7
<<locked>>
81%
47877
75%
**77
98%
[Hodgdon H1000]*
<<locked>>
86%
32068
50%
**89
90%
Hodgdon H414
<<locked>>
81%
46673
73%
**17
99%
Hodgdon H4350
<<locked>>
81%
49574
78%
**36
98%
[Hodgdon H4831]*
<<locked>>
81%
35650
56%
**48
91%
[Hodgdon H4831 SC]*
<<locked>>
81%
34983
55%
**35
90%
Hodgdon Hybrid 100V
<<locked>>
81%
40582
64%
**56
100%
[Hodgdon Retumbo]*
<<locked>>
85%
30980
49%
**35
90%
Hodgdon Superperformance
<<locked>>
81%
46456
73%
**46
98%
Hodgdon TrailBoss
<<locked>>
81%
28036
44%
**39
100%
IMR 4350
<<locked>>
81%
43569
68%
**08
97%
IMR 4451 Enduron
<<locked>>
81%
49516
78%
**10
99%
IMR 4831
<<locked>>
81%
42612
67%
**15
100%
[IMR 4955 Enduron]*
<<locked>>
81%
37753
59%
**74
92%
[IMR 7828 SSC]*
<<locked>>
83%
33721
53%
**54
90%
Lovex S065
<<locked>>
81%
46688
73%
**44
99%
Lovex S070
<<locked>>
81%
44904
70%
**31
98%
[Lovex S071]*
<<locked>>
81%
28050
44%
**38
93%
Norma 204
<<locked>>
81%
43511
68%
**44
96%
[Norma 217]*
<<locked>>
93%
28674
45%
**52
90%
Norma MRP
<<locked>>
81%
34563
54%
**07
95%
Norma URP
<<locked>>
81%
44005
69%
**51
100%
[Ramshot Grand]*
<<locked>>
83%
33243
52%
**44
90%
Ramshot Hunter
<<locked>>
81%
43149
68%
**44
98%
[Ramshot Magnum]*
<<locked>>
82%
28877
45%
**00
90%
ReloadSwiss RS 14
<<locked>>
81%
28485
45%
**75
100%
ReloadSwiss RS 62
<<locked>>
81%
44817
70%
**81
100%
ReloadSwiss RS 70
<<locked>>
81%
43265
68%
**00
99%
[ReloadSwiss RS 76]*
<<locked>>
84%
28848
45%
**52
90%
[ReloadSwiss RS 80]*
<<locked>>
93%
36245
57%
**69
90%
Rottweil R 903
<<locked>>
81%
51837
81%
**40
100%
[Rottweil R 904]*
<<locked>>
81%
38943
61%
**03
93%
[Rottweil R 905]*
<<locked>>
81%
36709
58%
**03
94%
Rottweil R 907
<<locked>>
81%
47877
75%
**77
98%
SNPE Vectan Tubal 5000
<<locked>>
81%
52446
82%
**25
100%
SNPE Vectan Tubal 7000
<<locked>>
81%
45934
72%
**99
98%
Shooters World Long Rifle
<<locked>>
81%
46688
73%
**44
99%
Somchem S355
<<locked>>
81%
52011
81%
**40
100%
[Somchem S361]*
<<locked>>
81%
39711
62%
**90
93%
Somchem S365
<<locked>>
81%
40944
64%
**12
100%
Somchem S385
<<locked>>
81%
37086
58%
**80
95%
Vihtavuori N150
<<locked>>
81%
49705
78%
**61
100%
Vihtavuori N160
<<locked>>
81%
45745
72%
**54
100%
[Vihtavuori N165]*
<<locked>>
81%
32155
50%
**43
93%
Vihtavuori N550
<<locked>>
81%
44918
70%
**48
100%
Vihtavuori N555
<<locked>>
81%
35505
56%
**97
99%
[Vihtavuori N560]*
<<locked>>
81%
34954
55%
**97
90%
[Vihtavuori N565]*
<<locked>>
86%
33547
53%
**54
90%
[Vihtavuori N568]*
<<locked>>
93%
37855
59%
**02
90%
Winchester 6.5 StaBALL
<<locked>>
81%
44933
70%
**12
100%
Winchester 760
<<locked>>
81%
46673
73%
**17
99%
Winchester StaBALL HD
<<locked>>
81%
26948
42%
**95
98%
[Winchester Supreme 780]*
<<locked>>
81%
33968
53%
**02
93%

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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