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Load data for 7-.300 Norma Magnum + .284 | 142gr | Lehigh Defense Controlled Chaos

Recommended Powder(s): ADI AR 2213, Alliant Reloder-22, Alliant Reloder-25, Ramshot Magnum, ReloadSwiss RS 76

7-.300 Norma Magnum + .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-.300 Norma Magnum load data
Case Length (l3):
2.492" | 63.3mm
Cartridge Length (C.O.L.):
3.579" | 90.9mm
Seated Depth:
0.288" | 7.3mm
Shank Seated Depth:
0.110" | 2.8mm
Case Capacity:
102.0 Grains of Water | 6.62 cm³
Primer Size:
Large Rifle Magnum (LRM)
Max. allowed Pressure:
63817 psi | 4400 bar
LID:
LID_B11015_C366
Last updated:
2025-11-05
Recommended Twist Rate:
1:10 - 1:8

Load data for 92 loads in caliber 7-.300 Norma Magnum with .284 | 142gr | Lehigh Defense Controlled Chaos bullet and 46 powders such as ADI AR 2213, Alliant Reloder-22, Alliant Reloder-25, Ramshot Magnum, ReloadSwiss RS 76. 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>>
87%
57058
89%
**59
100%
ADI AR 2213 👍
<<locked>>
90%
57188
90%
**92
99%
ADI AR 2217
<<locked>>
97%
53592
84%
**23
99%
[ADI AR 2218]*
<<locked>>
97%
46340
73%
**51
93%
ADI AR 2225
<<locked>>
97%
48298
76%
**84
100%
Accurate 3100
<<locked>>
89%
56637
89%
**74
100%
Accurate MAGPRO
<<locked>>
90%
57392
90%
**09
98%
Alliant Reloder-19
<<locked>>
87%
57014
89%
**53
100%
Alliant Reloder-22 👍
<<locked>>
90%
56869
89%
**76
100%
Alliant Reloder-23
<<locked>>
91%
57087
89%
**20
100%
Alliant Reloder-25 👍
<<locked>>
95%
57363
90%
**96
100%
Alliant Reloder-26
<<locked>>
86%
57072
89%
**05
100%
Alliant Reloder-33
<<locked>>
97%
50981
80%
**20
95%
Hodgdon H1000
<<locked>>
97%
53592
84%
**23
99%
Hodgdon H4350
<<locked>>
85%
57000
89%
**97
100%
Hodgdon H4831
<<locked>>
92%
56956
89%
**30
99%
Hodgdon H4831 SC
<<locked>>
89%
57290
90%
**46
99%
Hodgdon Hybrid 100V
<<locked>>
85%
57392
90%
**68
100%
Hodgdon Retumbo
<<locked>>
97%
48298
76%
**84
100%
Hodgdon TrailBoss
<<locked>>
96%
35853
56%
**82
100%
IMR 4350
<<locked>>
83%
56840
89%
**87
100%
IMR 4831
<<locked>>
86%
56840
89%
**87
100%
IMR 4955 Enduron
<<locked>>
90%
57029
89%
**04
99%
IMR 7828 SSC
<<locked>>
89%
56942
89%
**05
99%
[IMR 7977 Enduron]*
<<locked>>
95%
57246
90%
**64
93%
IMR 8133 Enduron
<<locked>>
97%
44382
70%
**82
97%
Lovex S071
<<locked>>
95%
57145
90%
**91
100%
Norma 217
<<locked>>
97%
45252
71%
**09
99%
Norma MRP
<<locked>>
88%
57043
89%
**92
100%
Ramshot Magnum 👍
<<locked>>
90%
57392
90%
**56
100%
ReloadSwiss RS 14
<<locked>>
96%
36608
57%
**24
100%
ReloadSwiss RS 76 👍
<<locked>>
95%
57348
90%
**74
100%
ReloadSwiss RS 80
<<locked>>
97%
56507
89%
**25
99%
Rottweil R 904
<<locked>>
87%
57101
89%
**20
99%
Rottweil R 905
<<locked>>
87%
56869
89%
**46
100%
Somchem S361
<<locked>>
86%
57217
90%
**84
99%
Somchem S365
<<locked>>
84%
57174
90%
**94
100%
Somchem S385
<<locked>>
87%
57116
89%
**07
100%
Vihtavuori N165
<<locked>>
92%
57363
90%
**04
100%
[Vihtavuori N170]*
<<locked>>
97%
50038
78%
**79
93%
Vihtavuori N555
<<locked>>
88%
56884
89%
**27
100%
Vihtavuori N560
<<locked>>
89%
57014
89%
**99
99%
Vihtavuori N565
<<locked>>
94%
57232
90%
**89
99%
Vihtavuori N568
<<locked>>
97%
57058
89%
**15
98%
Vihtavuori N570
<<locked>>
97%
54810
86%
**09
96%
Winchester StaBALL HD
<<locked>>
91%
57203
90%
**12
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2209
<<locked>>
81%
46702
73%
**69
98%
ADI AR 2213
<<locked>>
81%
42003
66%
**90
96%
[ADI AR 2217]*
<<locked>>
81%
31125
49%
**95
91%
[ADI AR 2218]*
<<locked>>
93%
41104
64%
**20
90%
[ADI AR 2225]*
<<locked>>
81%
28398
45%
**36
92%
Accurate 3100
<<locked>>
81%
42453
67%
**22
99%
[Accurate MAGPRO]*
<<locked>>
81%
41626
65%
**77
93%
Alliant Reloder-19
<<locked>>
81%
46557
73%
**59
98%
Alliant Reloder-22
<<locked>>
81%
42598
67%
**00
97%
Alliant Reloder-23
<<locked>>
81%
41263
65%
**41
100%
Alliant Reloder-25
<<locked>>
81%
35578
56%
**62
98%
Alliant Reloder-26
<<locked>>
81%
46586
73%
**22
100%
[Alliant Reloder-33]*
<<locked>>
90%
39044
61%
**54
90%
[Hodgdon H1000]*
<<locked>>
81%
31125
49%
**95
91%
Hodgdon H4350
<<locked>>
81%
49980
78%
**76
99%
[Hodgdon H4831]*
<<locked>>
81%
39305
62%
**82
94%
Hodgdon H4831 SC
<<locked>>
81%
43932
69%
**77
96%
Hodgdon Hybrid 100V
<<locked>>
81%
50502
79%
**63
100%
[Hodgdon Retumbo]*
<<locked>>
81%
28398
45%
**36
92%
Hodgdon TrailBoss
<<locked>>
81%
28761
45%
**18
100%
IMR 4350
<<locked>>
81%
52576
82%
**15
100%
IMR 4831
<<locked>>
81%
47979
75%
**40
100%
IMR 4955 Enduron
<<locked>>
81%
43352
68%
**41
96%
IMR 7828 SSC
<<locked>>
81%
43091
68%
**27
96%
[IMR 7977 Enduron]*
<<locked>>
89%
47282
74%
**74
90%
[IMR 8133 Enduron]*
<<locked>>
86%
30153
47%
**05
90%
Lovex S071
<<locked>>
81%
36695
58%
**87
98%
[Norma 217]*
<<locked>>
82%
26542
42%
**97
90%
Norma MRP
<<locked>>
81%
45121
71%
**82
99%
Ramshot Magnum
<<locked>>
81%
40205
63%
**31
98%
ReloadSwiss RS 14
<<locked>>
81%
29457
46%
**60
100%
ReloadSwiss RS 76
<<locked>>
81%
33953
53%
**46
96%
[ReloadSwiss RS 80]*
<<locked>>
83%
33475
52%
**00
90%
Rottweil R 904
<<locked>>
81%
47732
75%
**43
98%
Rottweil R 905
<<locked>>
81%
46224
72%
**46
98%
Somchem S361
<<locked>>
81%
48631
76%
**20
97%
Somchem S365
<<locked>>
81%
52156
82%
**25
100%
Somchem S385
<<locked>>
81%
46688
73%
**27
99%
Vihtavuori N165
<<locked>>
81%
39436
62%
**56
97%
[Vihtavuori N170]*
<<locked>>
92%
42453
67%
**28
90%
Vihtavuori N555
<<locked>>
81%
45832
72%
**27
100%
Vihtavuori N560
<<locked>>
81%
42772
67%
**13
95%
[Vihtavuori N565]*
<<locked>>
81%
37057
58%
**53
93%
[Vihtavuori N568]*
<<locked>>
83%
34650
54%
**30
90%
[Vihtavuori N570]*
<<locked>>
88%
39871
62%
**94
90%
Winchester StaBALL HD
<<locked>>
81%
38943
61%
**90
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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