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Load data for 7 mm KM Katzmaier + .284 | 120gr | Osprey Virtus

Recommended Powder(s): Alliant Reloder-22, Alliant Reloder-25, Ramshot Magnum, ReloadSwiss RS 76, Winchester StaBALL HD

7 mm KM Katzmaier + .284 | 120gr | Osprey Virtus

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.284 | 120gr | Osprey Virtus
Manufacturer SKU:
Osprey-0.284-120
Bullet Weight:
120gr | 7.8g
Bullet Diameter:
0.284" | 7.21mm
Bullet Length:
1.150" | 29.2mm
Caliber:
7 mm KM Katzmaier load data
Case Length (l3):
2.720" | 69.1mm
Cartridge Length (C.O.L.):
3.549" | 90.1mm
Seated Depth:
0.321" | 8.2mm
Shank Seated Depth:
0.203" | 5.2mm
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_B10755_C1057
Last updated:
2025-01-01
Recommended Twist Rate:
1:12 - 1:10

Load data for 98 loads in caliber 7 mm KM Katzmaier with .284 | 120gr | Osprey Virtus bullet and 49 powders such as Alliant Reloder-22, Alliant Reloder-25, Ramshot Magnum, ReloadSwiss RS 76, Winchester StaBALL HD. 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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    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.

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%
57072
89%
**43
99%
ADI AR 2213
<<locked>>
90%
57116
89%
**76
99%
ADI AR 2217
<<locked>>
97%
52823
83%
**71
98%
ADI AR 2225
<<locked>>
97%
47892
75%
**25
100%
Accurate 3100
<<locked>>
90%
56797
89%
**64
100%
Accurate MAGPRO
<<locked>>
90%
56942
89%
**60
97%
Alliant Reloder-16
<<locked>>
84%
57421
90%
**46
100%
Alliant Reloder-19
<<locked>>
88%
57043
89%
**37
99%
Alliant Reloder-22 👍
<<locked>>
90%
57319
90%
**69
99%
Alliant Reloder-23
<<locked>>
91%
56913
89%
**10
100%
Alliant Reloder-25 👍
<<locked>>
95%
57305
90%
**76
100%
Alliant Reloder-26
<<locked>>
87%
57348
90%
**83
100%
[Alliant Reloder-33]*
<<locked>>
97%
50821
80%
**71
94%
Hodgdon H1000
<<locked>>
97%
52823
83%
**71
98%
Hodgdon H4350
<<locked>>
86%
57188
90%
**81
100%
Hodgdon H4831
<<locked>>
93%
57377
90%
**23
98%
Hodgdon H4831 SC
<<locked>>
89%
57377
90%
**23
98%
Hodgdon Hybrid 100V
<<locked>>
85%
56826
89%
**48
100%
Hodgdon Retumbo
<<locked>>
97%
47892
75%
**25
100%
Hodgdon TrailBoss
<<locked>>
97%
35621
56%
**62
100%
IMR 4350
<<locked>>
84%
57261
90%
**84
100%
IMR 4831
<<locked>>
87%
57290
90%
**87
100%
IMR 4955 Enduron
<<locked>>
90%
56956
89%
**78
98%
IMR 7828 SSC
<<locked>>
89%
57392
90%
**79
99%
[IMR 7977 Enduron]*
<<locked>>
95%
57406
90%
**32
92%
IMR 8133 Enduron
<<locked>>
97%
43743
69%
**14
96%
Lovex S071
<<locked>>
95%
57116
90%
**64
100%
Norma 204
<<locked>>
83%
57029
89%
**17
99%
Norma 217
<<locked>>
97%
44280
69%
**33
98%
Norma MRP
<<locked>>
88%
57348
90%
**79
100%
Ramshot Hunter
<<locked>>
83%
56840
89%
**17
100%
Ramshot Magnum 👍
<<locked>>
90%
56971
89%
**17
100%
ReloadSwiss RS 14
<<locked>>
97%
36477
57%
**11
100%
ReloadSwiss RS 76 👍
<<locked>>
95%
57058
89%
**28
100%
ReloadSwiss RS 80
<<locked>>
97%
56478
89%
**69
98%
Rottweil R 904
<<locked>>
87%
57029
89%
**01
99%
Rottweil R 905
<<locked>>
88%
57319
90%
**37
99%
Somchem S361
<<locked>>
86%
57261
90%
**58
98%
Somchem S365
<<locked>>
84%
56768
89%
**91
100%
Somchem S385
<<locked>>
87%
56753
89%
**87
100%
Vihtavuori N150
<<locked>>
84%
57130
90%
**09
100%
Vihtavuori N165
<<locked>>
93%
57145
90%
**68
100%
[Vihtavuori N170]*
<<locked>>
97%
49182
77%
**17
92%
Vihtavuori N555
<<locked>>
88%
56956
89%
**07
100%
Vihtavuori N560
<<locked>>
90%
57116
89%
**89
98%
Vihtavuori N565
<<locked>>
94%
56869
89%
**43
98%
Vihtavuori N568
<<locked>>
97%
56565
89%
**83
97%
Vihtavuori N570
<<locked>>
97%
54766
86%
**69
95%
Winchester StaBALL HD 👍
<<locked>>
91%
56811
89%
**92
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2209
<<locked>>
81%
45832
72%
**23
97%
[ADI AR 2213]*
<<locked>>
81%
40843
64%
**31
94%
[ADI AR 2217]*
<<locked>>
84%
32996
52%
**95
90%
[ADI AR 2225]*
<<locked>>
82%
27862
44%
**57
90%
Accurate 3100
<<locked>>
81%
41249
65%
**63
98%
[Accurate MAGPRO]*
<<locked>>
81%
40640
64%
**15
92%
Alliant Reloder-16
<<locked>>
81%
52504
82%
**74
100%
Alliant Reloder-19
<<locked>>
81%
45687
72%
**04
97%
Alliant Reloder-22
<<locked>>
81%
41336
65%
**41
96%
Alliant Reloder-23
<<locked>>
81%
39929
63%
**89
100%
Alliant Reloder-25
<<locked>>
81%
34403
54%
**77
97%
Alliant Reloder-26
<<locked>>
81%
45571
71%
**59
100%
[Alliant Reloder-33]*
<<locked>>
92%
41321
65%
**48
90%
[Hodgdon H1000]*
<<locked>>
84%
32996
52%
**95
90%
Hodgdon H4350
<<locked>>
81%
49008
77%
**36
99%
[Hodgdon H4831]*
<<locked>>
81%
38232
60%
**04
92%
[Hodgdon H4831 SC]*
<<locked>>
81%
42743
67%
**25
94%
Hodgdon Hybrid 100V
<<locked>>
81%
49400
77%
**30
100%
[Hodgdon Retumbo]*
<<locked>>
82%
27862
44%
**57
90%
Hodgdon TrailBoss
<<locked>>
81%
28297
44%
**88
100%
IMR 4350
<<locked>>
81%
51677
81%
**79
99%
IMR 4831
<<locked>>
81%
46717
73%
**94
100%
[IMR 4955 Enduron]*
<<locked>>
81%
42221
66%
**79
94%
IMR 7828 SSC
<<locked>>
81%
42250
66%
**71
95%
[IMR 7977 Enduron]*
<<locked>>
91%
50082
78%
**00
90%
[IMR 8133 Enduron]*
<<locked>>
89%
32750
51%
**18
90%
Lovex S071
<<locked>>
81%
35012
55%
**02
96%
Norma 204
<<locked>>
81%
52359
82%
**41
99%
[Norma 217]*
<<locked>>
85%
28993
45%
**17
90%
Norma MRP
<<locked>>
81%
43932
69%
**14
98%
Ramshot Hunter
<<locked>>
81%
52344
82%
**32
100%
Ramshot Magnum
<<locked>>
81%
39146
61%
**63
96%
ReloadSwiss RS 14
<<locked>>
81%
29080
46%
**34
100%
[ReloadSwiss RS 76]*
<<locked>>
81%
32953
52%
**64
94%
[ReloadSwiss RS 80]*
<<locked>>
86%
35737
56%
**10
90%
Rottweil R 904
<<locked>>
81%
46630
73%
**91
96%
Rottweil R 905
<<locked>>
81%
45136
71%
**94
97%
Somchem S361
<<locked>>
81%
47790
75%
**81
96%
Somchem S365
<<locked>>
81%
50821
80%
**86
100%
Somchem S385
<<locked>>
81%
45353
71%
**61
98%
Vihtavuori N150
<<locked>>
81%
52460
82%
**36
100%
Vihtavuori N165
<<locked>>
81%
38334
60%
**94
96%
[Vihtavuori N170]*
<<locked>>
94%
45107
71%
**35
90%
Vihtavuori N555
<<locked>>
81%
44251
69%
**77
100%
[Vihtavuori N560]*
<<locked>>
81%
41655
65%
**58
94%
[Vihtavuori N565]*
<<locked>>
81%
35911
56%
**71
91%
[Vihtavuori N568]*
<<locked>>
86%
37231
58%
**46
90%
[Vihtavuori N570]*
<<locked>>
91%
43105
68%
**14
90%
Winchester StaBALL HD
<<locked>>
81%
37434
59%
**09
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.

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