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Load data for 7 mm KM Katzmaier + .284 | 142gr | Lehigh Defense Controlled Chaos

Recommended Powder(s): ADI AR 2225, Hodgdon Retumbo, ReloadSwiss RS 76, ReloadSwiss RS 80, Vihtavuori N565

7 mm KM Katzmaier + .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 mm KM Katzmaier load data
Case Length (l3):
2.720" | 69.1mm
Cartridge Length (C.O.L.):
3.664" | 93.1mm
Seated Depth:
0.431" | 10.9mm
Shank Seated Depth:
0.254" | 6.4mm
Case Capacity:
112.5 Grains of Water | 7.30 cm³
Primer Size:
Large Rifle Magnum (LRM)
Max. allowed Pressure:
63817 psi | 4400 bar
LID:
LID_B11015_C1057
Last updated:
2025-11-09
Recommended Twist Rate:
1:10 - 1:8

Load data for 90 loads in caliber 7 mm KM Katzmaier with .284 | 142gr | Lehigh Defense Controlled Chaos bullet and 45 powders such as ADI AR 2225, Hodgdon Retumbo, ReloadSwiss RS 76, ReloadSwiss RS 80, 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%
57377
90%
**43
100%
ADI AR 2213
<<locked>>
87%
57305
90%
**76
100%
ADI AR 2217
<<locked>>
95%
57203
90%
**50
100%
ADI AR 2218
<<locked>>
97%
53243
83%
**89
97%
ADI AR 2225 👍
<<locked>>
97%
55695
87%
**66
100%
Accurate 3100
<<locked>>
86%
56956
89%
**61
100%
[Accurate 8700]*
<<locked>>
97%
42438
67%
**61
93%
Accurate MAGPRO
<<locked>>
86%
56826
89%
**69
99%
Alliant Reloder-19
<<locked>>
84%
56942
89%
**20
100%
Alliant Reloder-22
<<locked>>
86%
57014
89%
**53
100%
Alliant Reloder-23
<<locked>>
87%
57246
90%
**84
100%
Alliant Reloder-25
<<locked>>
91%
57276
90%
**53
100%
Alliant Reloder-33
<<locked>>
96%
56811
89%
**92
98%
Alliant Reloder-50
<<locked>>
97%
50937
80%
**81
96%
Hodgdon H1000
<<locked>>
95%
57203
90%
**50
100%
Hodgdon H4831
<<locked>>
89%
56942
89%
**14
99%
Hodgdon H4831 SC
<<locked>>
86%
56942
89%
**14
99%
Hodgdon Retumbo 👍
<<locked>>
97%
55695
87%
**66
100%
Hodgdon TrailBoss
<<locked>>
97%
36332
57%
**14
100%
IMR 4831
<<locked>>
84%
57363
90%
**64
100%
IMR 4955 Enduron
<<locked>>
87%
57305
90%
**87
99%
IMR 7828 SSC
<<locked>>
86%
57348
90%
**82
100%
IMR 7977 Enduron
<<locked>>
92%
57319
90%
**58
95%
IMR 8133 Enduron
<<locked>>
97%
51155
80%
**81
99%
[Lovex D100]*
<<locked>>
95%
57290
90%
**71
93%
Lovex S071
<<locked>>
91%
56956
89%
**61
100%
Norma 217
<<locked>>
97%
52721
83%
**04
100%
Norma MRP
<<locked>>
84%
57043
89%
**63
100%
Ramshot Magnum
<<locked>>
87%
56855
89%
**14
100%
ReloadSwiss RS 14
<<locked>>
97%
37115
58%
**57
100%
ReloadSwiss RS 76 👍
<<locked>>
91%
56666
89%
**19
100%
ReloadSwiss RS 80 👍
<<locked>>
93%
57334
90%
**99
99%
Rottweil R 904
<<locked>>
84%
57276
90%
**97
100%
Rottweil R 905
<<locked>>
84%
56855
89%
**17
100%
[SNPE Vectan SP 13]*
<<locked>>
97%
44135
69%
**74
93%
Somchem S361
<<locked>>
83%
57363
90%
**68
99%
Somchem S385
<<locked>>
84%
57276
90%
**91
100%
Vihtavuori N165
<<locked>>
89%
57174
90%
**77
100%
Vihtavuori N170
<<locked>>
97%
55869
88%
**77
96%
Vihtavuori N555
<<locked>>
85%
57406
90%
**00
100%
Vihtavuori N560
<<locked>>
86%
57188
90%
**79
99%
Vihtavuori N565 👍
<<locked>>
90%
57029
89%
**50
99%
Vihtavuori N568
<<locked>>
93%
57145
90%
**96
99%
Vihtavuori N570
<<locked>>
94%
56739
89%
**19
97%
Winchester StaBALL HD
<<locked>>
87%
56608
89%
**59
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2209
<<locked>>
81%
51648
81%
**38
99%
ADI AR 2213
<<locked>>
81%
46847
73%
**72
98%
[ADI AR 2217]*
<<locked>>
81%
34911
55%
**84
94%
[ADI AR 2218]*
<<locked>>
88%
38566
60%
**35
90%
ADI AR 2225
<<locked>>
81%
32010
50%
**51
96%
Accurate 3100
<<locked>>
81%
47442
74%
**00
100%
[Accurate 8700]*
<<locked>>
94%
38072
60%
**56
90%
Accurate MAGPRO
<<locked>>
81%
46934
74%
**72
96%
Alliant Reloder-19
<<locked>>
81%
51459
81%
**31
100%
Alliant Reloder-22
<<locked>>
81%
47543
74%
**82
99%
Alliant Reloder-23
<<locked>>
81%
46195
72%
**17
100%
Alliant Reloder-25
<<locked>>
81%
40045
63%
**41
100%
[Alliant Reloder-33]*
<<locked>>
84%
36854
58%
**72
90%
[Alliant Reloder-50]*
<<locked>>
89%
38218
60%
**82
90%
[Hodgdon H1000]*
<<locked>>
81%
34911
55%
**84
94%
Hodgdon H4831
<<locked>>
81%
43526
68%
**51
96%
Hodgdon H4831 SC
<<locked>>
81%
48646
76%
**56
98%
Hodgdon Retumbo
<<locked>>
81%
32010
50%
**51
96%
Hodgdon TrailBoss
<<locked>>
81%
28892
45%
**47
100%
IMR 4831
<<locked>>
81%
52736
83%
**95
100%
IMR 4955 Enduron
<<locked>>
81%
47137
74%
**10
98%
IMR 7828 SSC
<<locked>>
81%
48515
76%
**22
98%
[IMR 7977 Enduron]*
<<locked>>
84%
44063
69%
**02
90%
[IMR 8133 Enduron]*
<<locked>>
81%
29457
46%
**56
91%
[Lovex D100]*
<<locked>>
90%
47718
75%
**00
90%
Lovex S071
<<locked>>
81%
40669
64%
**66
99%
[Norma 217]*
<<locked>>
81%
29747
47%
**85
94%
Norma MRP
<<locked>>
81%
50618
79%
**58
100%
Ramshot Magnum
<<locked>>
81%
45818
72%
**23
99%
ReloadSwiss RS 14
<<locked>>
81%
29617
46%
**86
100%
ReloadSwiss RS 76
<<locked>>
81%
38841
61%
**54
99%
[ReloadSwiss RS 80]*
<<locked>>
81%
35766
56%
**33
93%
Rottweil R 904
<<locked>>
81%
52185
82%
**09
99%
Rottweil R 905
<<locked>>
81%
51126
80%
**15
99%
[SNPE Vectan SP 13]*
<<locked>>
93%
38479
60%
**43
90%
Somchem S361
<<locked>>
81%
53548
84%
**95
99%
Somchem S385
<<locked>>
81%
51721
81%
**95
100%
Vihtavuori N165
<<locked>>
81%
44005
69%
**31
99%
[Vihtavuori N170]*
<<locked>>
86%
39624
62%
**36
90%
Vihtavuori N555
<<locked>>
81%
51068
80%
**92
100%
Vihtavuori N560
<<locked>>
81%
47776
75%
**09
98%
Vihtavuori N565
<<locked>>
81%
41916
66%
**54
96%
[Vihtavuori N568]*
<<locked>>
81%
36724
58%
**56
92%
[Vihtavuori N570]*
<<locked>>
83%
37652
59%
**05
90%
Winchester StaBALL HD
<<locked>>
81%
45295
71%
**82
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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