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

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

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

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.284 | 120gr | Merlin Virtus
Manufacturer SKU:
Merlin-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.):
3.664" | 93.1mm
Seated Depth:
0.206" | 5.2mm
Shank Seated Depth:
0.084" | 2.1mm
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_B10756_C1057
Last updated:
2025-01-01
Recommended Twist Rate:
1:12 - 1:10

Load data for 90 loads in caliber 7 mm KM Katzmaier with .284 | 120gr | Merlin Virtus bullet and 45 powders such as ADI AR 2213, 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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  • 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%
57246
90%
**50
99%
ADI AR 2213 👍
<<locked>>
90%
57421
90%
**83
99%
ADI AR 2217
<<locked>>
97%
54244
85%
**94
99%
ADI AR 2225
<<locked>>
97%
49110
77%
**45
100%
Accurate 3100
<<locked>>
89%
56710
89%
**51
100%
Accurate MAGPRO
<<locked>>
89%
56826
89%
**60
97%
Alliant Reloder-19
<<locked>>
87%
57029
89%
**33
99%
Alliant Reloder-22
<<locked>>
89%
57058
89%
**63
99%
Alliant Reloder-23
<<locked>>
91%
57319
90%
**01
100%
Alliant Reloder-25 👍
<<locked>>
94%
56985
89%
**63
100%
Alliant Reloder-26
<<locked>>
86%
56927
89%
**66
100%
Alliant Reloder-33
<<locked>>
97%
52170
82%
**87
95%
Hodgdon H1000
<<locked>>
97%
54244
85%
**94
99%
Hodgdon H4350
<<locked>>
85%
56869
89%
**84
100%
Hodgdon H4831
<<locked>>
92%
57246
90%
**14
98%
Hodgdon H4831 SC
<<locked>>
89%
57072
89%
**04
98%
Hodgdon Hybrid 100V
<<locked>>
85%
56942
89%
**48
100%
Hodgdon Retumbo
<<locked>>
97%
49110
77%
**45
100%
Hodgdon TrailBoss
<<locked>>
96%
35491
56%
**65
100%
IMR 4350
<<locked>>
84%
56927
89%
**84
100%
IMR 4831
<<locked>>
86%
56956
89%
**71
100%
IMR 4955 Enduron
<<locked>>
90%
57130
90%
**87
98%
IMR 7828 SSC
<<locked>>
88%
57116
89%
**73
99%
[IMR 7977 Enduron]*
<<locked>>
94%
56782
89%
**22
92%
IMR 8133 Enduron
<<locked>>
97%
45034
71%
**40
96%
Lovex S071
<<locked>>
95%
56710
89%
**51
100%
Norma 217
<<locked>>
97%
45368
71%
**59
98%
Norma MRP
<<locked>>
87%
57174
90%
**73
100%
Ramshot Magnum 👍
<<locked>>
90%
57363
90%
**23
100%
ReloadSwiss RS 14
<<locked>>
96%
36376
57%
**18
100%
ReloadSwiss RS 76 👍
<<locked>>
94%
56971
89%
**19
100%
ReloadSwiss RS 80
<<locked>>
96%
57014
89%
**76
98%
Rottweil R 904
<<locked>>
87%
57276
90%
**94
99%
Rottweil R 905
<<locked>>
87%
57406
90%
**33
99%
Somchem S361
<<locked>>
86%
57145
90%
**51
98%
Somchem S365
<<locked>>
84%
57203
90%
**84
100%
Somchem S385
<<locked>>
87%
56956
89%
**91
100%
Vihtavuori N165
<<locked>>
92%
57363
90%
**71
100%
[Vihtavuori N170]*
<<locked>>
97%
50401
79%
**40
92%
Vihtavuori N555
<<locked>>
88%
57392
90%
**14
100%
Vihtavuori N560
<<locked>>
89%
57406
90%
**92
98%
Vihtavuori N565
<<locked>>
93%
57000
89%
**37
98%
Vihtavuori N568
<<locked>>
96%
57334
90%
**83
98%
Vihtavuori N570
<<locked>>
97%
56130
88%
**83
95%
Winchester StaBALL HD 👍
<<locked>>
91%
57000
89%
**76
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2209
<<locked>>
81%
46746
73%
**40
98%
ADI AR 2213
<<locked>>
81%
41684
65%
**45
95%
[ADI AR 2217]*
<<locked>>
83%
32866
52%
**92
90%
[ADI AR 2225]*
<<locked>>
81%
27905
44%
**57
90%
Accurate 3100
<<locked>>
81%
41872
66%
**76
99%
[Accurate MAGPRO]*
<<locked>>
81%
41553
65%
**38
92%
Alliant Reloder-19
<<locked>>
81%
46325
73%
**20
97%
Alliant Reloder-22
<<locked>>
81%
42206
66%
**54
96%
Alliant Reloder-23
<<locked>>
81%
40828
64%
**05
100%
Alliant Reloder-25
<<locked>>
81%
35215
55%
**97
97%
Alliant Reloder-26
<<locked>>
81%
46514
73%
**79
100%
[Alliant Reloder-33]*
<<locked>>
91%
41133
64%
**45
90%
[Hodgdon H1000]*
<<locked>>
83%
32866
52%
**92
90%
Hodgdon H4350
<<locked>>
81%
49908
78%
**50
99%
[Hodgdon H4831]*
<<locked>>
81%
38856
61%
**23
93%
Hodgdon H4831 SC
<<locked>>
81%
43569
68%
**38
95%
Hodgdon Hybrid 100V
<<locked>>
81%
50082
78%
**43
100%
[Hodgdon Retumbo]*
<<locked>>
81%
27905
44%
**57
90%
Hodgdon TrailBoss
<<locked>>
81%
28340
44%
**91
100%
IMR 4350
<<locked>>
81%
52562
82%
**05
99%
IMR 4831
<<locked>>
81%
47747
75%
**14
100%
IMR 4955 Enduron
<<locked>>
81%
42873
67%
**05
95%
IMR 7828 SSC
<<locked>>
81%
43120
68%
**84
95%
[IMR 7977 Enduron]*
<<locked>>
90%
49574
78%
**94
90%
[IMR 8133 Enduron]*
<<locked>>
88%
32750
51%
**08
90%
Lovex S071
<<locked>>
81%
35853
56%
**28
97%
[Norma 217]*
<<locked>>
85%
28848
45%
**03
90%
Norma MRP
<<locked>>
81%
44918
70%
**40
98%
Ramshot Magnum
<<locked>>
81%
40248
63%
**86
97%
ReloadSwiss RS 14
<<locked>>
81%
29153
46%
**41
100%
ReloadSwiss RS 76
<<locked>>
81%
33721
53%
**87
95%
[ReloadSwiss RS 80]*
<<locked>>
85%
35810
56%
**00
90%
Rottweil R 904
<<locked>>
81%
47500
74%
**07
97%
Rottweil R 905
<<locked>>
81%
45832
72%
**10
98%
Somchem S361
<<locked>>
81%
48617
76%
**94
96%
Somchem S365
<<locked>>
81%
51909
81%
**99
100%
Somchem S385
<<locked>>
81%
46224
72%
**87
98%
Vihtavuori N165
<<locked>>
81%
39160
61%
**10
96%
[Vihtavuori N170]*
<<locked>>
93%
44382
70%
**22
90%
Vihtavuori N555
<<locked>>
81%
45281
71%
**94
100%
[Vihtavuori N560]*
<<locked>>
81%
42525
67%
**71
94%
[Vihtavuori N565]*
<<locked>>
81%
36709
58%
**97
92%
[Vihtavuori N568]*
<<locked>>
85%
37188
58%
**33
90%
[Vihtavuori N570]*
<<locked>>
90%
42337
66%
**94
90%
Winchester StaBALL HD
<<locked>>
81%
38667
61%
**38
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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