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Load data for 7 mm Rem. Ultra Mag + .284 | 142gr | Lehigh Defense Controlled Chaos

Recommended Powder(s): ADI AR 2225, Bofors RP30, Hodgdon Retumbo, ReloadSwiss RS 76, Vihtavuori N565

7 mm Rem. Ultra Mag + .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 mm Rem. Ultra Mag load data
Case Length (l3):
2.850" | 72.4mm
Cartridge Length (C.O.L.):
<<locked>>
Seated Depth:
<<locked>>
Shank Seated Depth:
<<locked>>
Case Capacity:
112.0 Grains of Water | 7.27 cm³
Primer Size:
Large Rifle Magnum (LRM)
Max. allowed Pressure:
63817 psi | 4400 bar
LID:
LID_B11015_C1063
Last updated:
2026-03-21
Recommended Twist Rate:
1:10 - 1:8

Load data for 108 loads in caliber 7 mm Rem. Ultra Mag with .284 | 142gr | Lehigh Defense Controlled Chaos bullet and 54 powders such as ADI AR 2225, Bofors RP30, Hodgdon Retumbo, ReloadSwiss RS 76, Vihtavuori N565. 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>>
84%
56913
89%
**22
100%
ADI AR 2213
<<locked>>
87%
57363
90%
**61
100%
ADI AR 2217
<<locked>>
96%
57377
90%
**45
100%
ADI AR 2218
<<locked>>
97%
52605
82%
**58
98%
ADI AR 2225 👍
<<locked>>
97%
54868
86%
**28
100%
Accurate 3100
<<locked>>
87%
57188
90%
**43
100%
[Accurate 8700]*
<<locked>>
97%
41379
65%
**26
93%
Accurate MAGPRO
<<locked>>
87%
56956
89%
**54
99%
Alliant Reloder-19
<<locked>>
85%
57406
90%
**25
100%
Alliant Reloder-22
<<locked>>
87%
57130
90%
**38
100%
Alliant Reloder-23
<<locked>>
88%
57377
90%
**76
100%
Alliant Reloder-25
<<locked>>
92%
57305
90%
**31
100%
Alliant Reloder-26
<<locked>>
83%
56927
89%
**35
100%
Alliant Reloder-33
<<locked>>
96%
57334
90%
**81
98%
Alliant Reloder-50
<<locked>>
97%
50169
79%
**46
96%
Baschieri & Pellagri 109
<<locked>>
89%
57203
90%
**02
98%
Bofors RP15
<<locked>>
89%
57246
90%
**45
100%
Bofors RP30 👍
<<locked>>
94%
57348
90%
**48
100%
Bofors RP5
<<locked>>
87%
57130
90%
**38
100%
Hodgdon H1000
<<locked>>
96%
57377
90%
**45
100%
Hodgdon H4831
<<locked>>
90%
56753
89%
**89
99%
Hodgdon H4831 SC
<<locked>>
86%
57087
89%
**02
99%
Hodgdon Retumbo 👍
<<locked>>
97%
54868
86%
**28
100%
Hodgdon TrailBoss
<<locked>>
97%
36100
57%
**59
100%
IMR 4831
<<locked>>
84%
57290
90%
**56
100%
IMR 4955 Enduron
<<locked>>
87%
56913
89%
**72
99%
IMR 7828 SSC
<<locked>>
86%
56869
89%
**58
100%
IMR 7977 Enduron
<<locked>>
92%
57232
90%
**33
95%
IMR 8133 Enduron
<<locked>>
97%
50314
79%
**49
99%
[Lovex D100]*
<<locked>>
96%
57188
90%
**49
94%
Lovex S071
<<locked>>
92%
57188
90%
**43
100%
Norma 217
<<locked>>
97%
51039
80%
**66
100%
Norma MRP
<<locked>>
85%
57145
90%
**51
100%
Ramshot Grand
<<locked>>
84%
57014
89%
**58
100%
Ramshot Magnum
<<locked>>
87%
56942
89%
**92
100%
ReloadSwiss RS 14
<<locked>>
96%
36825
58%
**01
100%
ReloadSwiss RS 76 👍
<<locked>>
91%
56811
89%
**91
100%
ReloadSwiss RS 80
<<locked>>
93%
56884
89%
**61
99%
Rottweil R 904
<<locked>>
84%
56811
89%
**76
100%
Rottweil R 905
<<locked>>
85%
56797
89%
**05
100%
[SNPE Vectan SP 13]*
<<locked>>
97%
43366
68%
**46
93%
[Shooters World 50 BMG]*
<<locked>>
96%
57188
90%
**49
94%
Somchem S361
<<locked>>
84%
57392
90%
**49
99%
Somchem S385
<<locked>>
85%
56971
89%
**69
100%
[Vihtavuori 24N41]*
<<locked>>
97%
53113
83%
**53
92%
Vihtavuori N165
<<locked>>
90%
57261
90%
**49
100%
Vihtavuori N170
<<locked>>
97%
55303
87%
**46
96%
Vihtavuori N555
<<locked>>
85%
56927
89%
**79
100%
Vihtavuori N560
<<locked>>
87%
57392
90%
**68
100%
Vihtavuori N565 👍
<<locked>>
91%
57348
90%
**31
100%
Vihtavuori N568
<<locked>>
93%
56869
89%
**68
99%
Vihtavuori N570
<<locked>>
94%
57014
89%
**00
98%
Winchester StaBALL HD
<<locked>>
88%
56985
89%
**48
100%
Winchester Supreme 780
<<locked>>
84%
57232
90%
**69
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2209
<<locked>>
81%
50734
79%
**20
100%
ADI AR 2213
<<locked>>
81%
45759
72%
**48
98%
[ADI AR 2217]*
<<locked>>
81%
33663
53%
**72
94%
[ADI AR 2218]*
<<locked>>
88%
36883
58%
**84
90%
ADI AR 2225
<<locked>>
81%
30879
48%
**33
96%
Accurate 3100
<<locked>>
81%
45832
72%
**72
100%
[Accurate 8700]*
<<locked>>
93%
36260
57%
**12
90%
Accurate MAGPRO
<<locked>>
81%
45788
72%
**44
96%
Alliant Reloder-19
<<locked>>
81%
50241
79%
**04
100%
Alliant Reloder-22
<<locked>>
81%
46441
73%
**54
99%
Alliant Reloder-23
<<locked>>
81%
44976
70%
**95
100%
Alliant Reloder-25
<<locked>>
81%
39059
61%
**26
100%
Alliant Reloder-26
<<locked>>
81%
51779
81%
**63
100%
[Alliant Reloder-33]*
<<locked>>
84%
34882
55%
**28
90%
[Alliant Reloder-50]*
<<locked>>
89%
36158
57%
**44
90%
Baschieri & Pellagri 109
<<locked>>
81%
43874
69%
**62
95%
Bofors RP15
<<locked>>
81%
42931
67%
**82
98%
Bofors RP30
<<locked>>
81%
36216
57%
**51
96%
Bofors RP5
<<locked>>
81%
46441
73%
**54
99%
[Hodgdon H1000]*
<<locked>>
81%
33663
53%
**72
94%
Hodgdon H4831
<<locked>>
81%
42525
67%
**36
97%
Hodgdon H4831 SC
<<locked>>
81%
47543
74%
**44
98%
Hodgdon Retumbo
<<locked>>
81%
30879
48%
**33
96%
Hodgdon TrailBoss
<<locked>>
81%
28718
45%
**01
100%
IMR 4831
<<locked>>
81%
51663
81%
**77
100%
IMR 4955 Enduron
<<locked>>
81%
46166
72%
**92
98%
IMR 7828 SSC
<<locked>>
81%
47514
74%
**97
99%
[IMR 7977 Enduron]*
<<locked>>
84%
42772
67%
**74
90%
[IMR 8133 Enduron]*
<<locked>>
81%
28210
44%
**38
90%
[Lovex D100]*
<<locked>>
90%
46064
72%
**53
90%
Lovex S071
<<locked>>
81%
39392
62%
**44
99%
[Norma 217]*
<<locked>>
81%
28340
44%
**57
93%
Norma MRP
<<locked>>
81%
49661
78%
**36
100%
Ramshot Grand
<<locked>>
81%
50966
80%
**53
99%
Ramshot Magnum
<<locked>>
81%
44614
70%
**99
99%
ReloadSwiss RS 14
<<locked>>
81%
29428
46%
**41
100%
ReloadSwiss RS 76
<<locked>>
81%
37652
59%
**36
99%
[ReloadSwiss RS 80]*
<<locked>>
81%
34432
54%
**15
93%
Rottweil R 904
<<locked>>
81%
51416
81%
**94
99%
Rottweil R 905
<<locked>>
81%
50082
78%
**97
100%
[SNPE Vectan SP 13]*
<<locked>>
92%
36724
58%
**02
90%
[Shooters World 50 BMG]*
<<locked>>
90%
46064
72%
**53
90%
Somchem S361
<<locked>>
81%
52649
82%
**71
99%
Somchem S385
<<locked>>
81%
50357
79%
**64
100%
[Vihtavuori 24N41]*
<<locked>>
94%
48312
76%
**61
90%
Vihtavuori N165
<<locked>>
81%
42583
67%
**10
99%
[Vihtavuori N170]*
<<locked>>
86%
37797
59%
**12
90%
Vihtavuori N555
<<locked>>
81%
49661
78%
**64
100%
Vihtavuori N560
<<locked>>
81%
46644
73%
**84
98%
Vihtavuori N565
<<locked>>
81%
40611
64%
**23
96%
[Vihtavuori N568]*
<<locked>>
81%
35694
56%
**48
93%
[Vihtavuori N570]*
<<locked>>
83%
36477
57%
**87
90%
Winchester StaBALL HD
<<locked>>
81%
43772
69%
**51
100%
Winchester Supreme 780
<<locked>>
81%
50995
80%
**77
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.

<<locked>>... you need to buy an access license to unlock the data

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