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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:
1.375" | 34.9mm
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:
0.716" | 18.2mm
Shank Seated Depth:
0.538" | 13.7mm
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 140 loads in caliber 7 x 66 SE v. Hofe with .284 | 142gr | Lehigh Defense Controlled Chaos bullet and 70 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 2209 👍
<<locked>>
93%
56956
89%
**07
99%
ADI AR 2213
<<locked>>
96%
57116
89%
**46
98%
ADI AR 2217
<<locked>>
97%
42714
67%
**61
95%
ADI AR 2225
<<locked>>
97%
38580
60%
**12
97%
Accurate 2700
<<locked>>
83%
57043
89%
**82
99%
Accurate 3100
<<locked>>
96%
56913
89%
**45
100%
Accurate 4350
<<locked>>
87%
57087
89%
**68
100%
Accurate MAGPRO
<<locked>>
96%
56710
89%
**46
96%
Alliant Reloder-16
<<locked>>
89%
57406
90%
**30
100%
Alliant Reloder-17
<<locked>>
84%
57188
90%
**10
100%
Alliant Reloder-19 👍
<<locked>>
93%
56811
89%
**04
99%
Alliant Reloder-22
<<locked>>
96%
57058
89%
**50
99%
Alliant Reloder-23
<<locked>>
97%
56028
88%
**91
100%
Alliant Reloder-25
<<locked>>
97%
48095
75%
**18
100%
Alliant Reloder-26 👍
<<locked>>
93%
57058
89%
**92
100%
Hodgdon H1000
<<locked>>
97%
42714
67%
**61
95%
Hodgdon H414
<<locked>>
83%
56521
89%
**87
100%
Hodgdon H4350
<<locked>>
91%
57058
89%
**51
100%
Hodgdon H4831
<<locked>>
97%
54331
85%
**45
97%
Hodgdon H4831 SC
<<locked>>
94%
56652
89%
**84
98%
Hodgdon Hybrid 100V
<<locked>>
90%
56695
89%
**28
100%
Hodgdon LVR
<<locked>>
86%
57130
90%
**81
100%
Hodgdon Retumbo
<<locked>>
97%
38580
60%
**12
97%
Hodgdon Superperformance
<<locked>>
86%
56913
89%
**20
100%
Hodgdon TrailBoss
<<locked>>
97%
35534
56%
**03
100%
IMR 4064
<<locked>>
83%
57334
90%
**09
100%
IMR 4166 Enduron
<<locked>>
84%
57116
89%
**12
100%
IMR 4350
<<locked>>
89%
57029
89%
**48
100%
IMR 4451 Enduron
<<locked>>
85%
56710
89%
**31
100%
IMR 4831
<<locked>>
92%
56826
89%
**51
100%
IMR 4955 Enduron
<<locked>>
95%
56782
89%
**41
98%
IMR 7828 SSC
<<locked>>
95%
56840
89%
**59
98%
Lovex S065
<<locked>>
86%
56652
89%
**15
100%
Lovex S070
<<locked>>
88%
56826
89%
**41
100%
Lovex S071
<<locked>>
97%
49501
78%
**27
100%
Norma 204
<<locked>>
88%
56971
89%
**84
99%
[Norma 217]*
<<locked>>
97%
34345
54%
**30
94%
Norma MRP 👍
<<locked>>
94%
56782
89%
**69
100%
Norma URP
<<locked>>
88%
56913
89%
**77
100%
Ramshot Hunter
<<locked>>
89%
56942
89%
**00
100%
Ramshot Magnum
<<locked>>
96%
57029
89%
**27
100%
ReloadSwiss RS 14
<<locked>>
96%
35998
56%
**42
100%
ReloadSwiss RS 60
<<locked>>
85%
56666
89%
**33
100%
ReloadSwiss RS 62
<<locked>>
87%
57334
90%
**94
100%
ReloadSwiss RS 70
<<locked>>
88%
56985
89%
**53
100%
ReloadSwiss RS 76
<<locked>>
97%
47732
75%
**64
99%
[ReloadSwiss RS 80]*
<<locked>>
97%
42525
67%
**23
93%
Rottweil R 903
<<locked>>
83%
56942
89%
**18
100%
Rottweil R 904
<<locked>>
92%
57406
90%
**71
98%
Rottweil R 905 👍
<<locked>>
93%
57435
90%
**10
99%
Rottweil R 907
<<locked>>
86%
57392
90%
**35
100%
SNPE Vectan Tubal 5000
<<locked>>
83%
57232
90%
**87
100%
SNPE Vectan Tubal 7000
<<locked>>
87%
56884
89%
**82
100%
Shooters World Long Rifle
<<locked>>
86%
56652
89%
**15
100%
Somchem S355
<<locked>>
83%
56710
89%
**15
100%
Somchem S361
<<locked>>
91%
57029
89%
**25
98%
Somchem S365
<<locked>>
90%
56782
89%
**77
100%
Somchem S385
<<locked>>
93%
57348
90%
**68
100%
Vihtavuori N135
<<locked>>
84%
56884
89%
**17
100%
Vihtavuori N150
<<locked>>
88%
57232
90%
**76
100%
Vihtavuori N160
<<locked>>
85%
56507
89%
**31
100%
Vihtavuori N165
<<locked>>
97%
53998
85%
**05
99%
Vihtavuori N550
<<locked>>
85%
57043
89%
**71
100%
Vihtavuori N555
<<locked>>
94%
57363
90%
**07
100%
Vihtavuori N560
<<locked>>
96%
56884
89%
**59
98%
Vihtavuori N565
<<locked>>
97%
50792
80%
**41
97%
[Vihtavuori N568]*
<<locked>>
97%
44280
69%
**43
93%
Winchester 6.5 StaBALL
<<locked>>
87%
56768
89%
**02
100%
Winchester 760
<<locked>>
83%
56521
89%
**87
100%
Winchester StaBALL HD
<<locked>>
97%
53330
84%
**66
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2209
<<locked>>
81%
38653
61%
**46
95%
[ADI AR 2213]*
<<locked>>
81%
34447
54%
**54
91%
[ADI AR 2217]*
<<locked>>
90%
33939
53%
**28
90%
[ADI AR 2225]*
<<locked>>
88%
28485
45%
**13
90%
Accurate 2700
<<locked>>
81%
52750
83%
**10
99%
Accurate 3100
<<locked>>
81%
34418
54%
**08
96%
Accurate 4350
<<locked>>
81%
46311
73%
**94
100%
[Accurate MAGPRO]*
<<locked>>
85%
37536
59%
**59
90%
Alliant Reloder-16
<<locked>>
81%
44135
69%
**97
100%
Alliant Reloder-17
<<locked>>
81%
51198
80%
**22
100%
Alliant Reloder-19
<<locked>>
81%
38609
61%
**43
95%
[Alliant Reloder-22]*
<<locked>>
81%
34330
54%
**64
93%
Alliant Reloder-23
<<locked>>
81%
32982
52%
**41
99%
[Alliant Reloder-25]*
<<locked>>
81%
28848
45%
**33
94%
Alliant Reloder-26
<<locked>>
81%
35984
56%
**76
98%
[Hodgdon H1000]*
<<locked>>
90%
33939
53%
**28
90%
Hodgdon H414
<<locked>>
81%
52286
82%
**15
99%
Hodgdon H4350
<<locked>>
81%
42235
66%
**72
97%
[Hodgdon H4831]*
<<locked>>
83%
34592
54%
**21
90%
[Hodgdon H4831 SC]*
<<locked>>
81%
36100
57%
**61
91%
Hodgdon Hybrid 100V
<<locked>>
81%
41829
66%
**76
100%
Hodgdon LVR
<<locked>>
81%
48689
76%
**33
100%
[Hodgdon Retumbo]*
<<locked>>
88%
28485
45%
**13
90%
Hodgdon Superperformance
<<locked>>
81%
47674
75%
**63
99%
Hodgdon TrailBoss
<<locked>>
81%
28253
44%
**42
100%
IMR 4064
<<locked>>
81%
53534
84%
**53
100%
IMR 4166 Enduron
<<locked>>
81%
52185
82%
**27
99%
IMR 4350
<<locked>>
81%
44570
70%
**22
98%
IMR 4451 Enduron
<<locked>>
81%
50560
79%
**20
99%
IMR 4831
<<locked>>
81%
39929
63%
**46
99%
[IMR 4955 Enduron]*
<<locked>>
81%
36434
57%
**35
92%
[IMR 7828 SSC]*
<<locked>>
81%
35099
55%
**90
91%
Lovex S065
<<locked>>
81%
47964
75%
**71
100%
Lovex S070
<<locked>>
81%
46195
72%
**51
99%
[Lovex S071]*
<<locked>>
81%
29428
46%
**74
94%
Norma 204
<<locked>>
81%
44585
70%
**58
96%
[Norma 217]*
<<locked>>
91%
28747
45%
**52
90%
Norma MRP
<<locked>>
81%
35824
56%
**40
95%
Norma URP
<<locked>>
81%
45165
71%
**67
100%
Ramshot Hunter
<<locked>>
81%
44208
69%
**71
99%
[Ramshot Magnum]*
<<locked>>
81%
31633
50%
**85
92%
ReloadSwiss RS 14
<<locked>>
81%
28732
45%
**78
100%
ReloadSwiss RS 60
<<locked>>
81%
49182
77%
**09
100%
ReloadSwiss RS 62
<<locked>>
81%
46195
72%
**04
100%
ReloadSwiss RS 70
<<locked>>
81%
44469
70%
**20
100%
[ReloadSwiss RS 76]*
<<locked>>
83%
28935
45%
**52
90%
[ReloadSwiss RS 80]*
<<locked>>
93%
36637
57%
**76
90%
Rottweil R 903
<<locked>>
81%
53330
84%
**56
100%
[Rottweil R 904]*
<<locked>>
81%
39885
62%
**30
94%
Rottweil R 905
<<locked>>
81%
37884
59%
**26
95%
Rottweil R 907
<<locked>>
81%
49066
77%
**94
99%
SNPE Vectan Tubal 5000
<<locked>>
81%
53447
84%
**38
100%
SNPE Vectan Tubal 7000
<<locked>>
81%
47282
74%
**15
99%
Shooters World Long Rifle
<<locked>>
81%
47964
75%
**71
100%
Somchem S355
<<locked>>
81%
53171
83%
**59
100%
[Somchem S361]*
<<locked>>
81%
40799
64%
**20
93%
Somchem S365
<<locked>>
81%
42250
66%
**31
100%
Somchem S385
<<locked>>
81%
38479
60%
**10
96%
Vihtavuori N135
<<locked>>
81%
51735
81%
**41
100%
Vihtavuori N150
<<locked>>
81%
45600
71%
**95
100%
Vihtavuori N160
<<locked>>
81%
48834
77%
**07
100%
[Vihtavuori N165]*
<<locked>>
81%
32111
50%
**43
93%
Vihtavuori N550
<<locked>>
81%
49211
77%
**49
100%
Vihtavuori N555
<<locked>>
81%
37028
58%
**20
99%
[Vihtavuori N560]*
<<locked>>
81%
34316
54%
**74
90%
[Vihtavuori N565]*
<<locked>>
85%
33576
53%
**41
90%
[Vihtavuori N568]*
<<locked>>
92%
37623
59%
**82
90%
Winchester 6.5 StaBALL
<<locked>>
81%
46021
72%
**35
100%
Winchester 760
<<locked>>
81%
52286
82%
**15
99%
Winchester StaBALL HD
<<locked>>
81%
28253
44%
**44
99%

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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