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Load data for 7 mm KM Katzmaier + .284 | 125gr | Hasler ARIETE

Recommended Powder(s):

7 mm KM Katzmaier + .284 | 125gr | Hasler ARIETE

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.284 | 125gr | Hasler ARIETE
Manufacturer SKU:
A7-125
Bullet Weight:
125gr | 8.1g
Bullet Diameter:
0.284" | 7.21mm
Bullet Length:
<<locked>>
Caliber:
7 mm KM Katzmaier load data
Case Length (l3):
2.720" | 69.1mm
Cartridge Length (C.O.L.):
<<locked>>
Seated Depth:
<<locked>>
Shank Seated Depth:
<<locked>>
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_B7062_C1057
Last updated:
2026-03-26
Recommended Twist Rate:
1:11 - 1:9

Load data for 104 loads in caliber 7 mm KM Katzmaier with .284 | 125gr | Hasler ARIETE bullet and 52 powder(s). 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%
57290
90%
**97
100%
ADI AR 2213
<<locked>>
89%
57232
90%
**20
99%
ADI AR 2217
<<locked>>
97%
55158
86%
**71
99%
[ADI AR 2218]*
<<locked>>
97%
47645
75%
**89
93%
ADI AR 2225
<<locked>>
97%
49763
78%
**12
100%
Accurate 3100
<<locked>>
89%
57276
90%
**19
100%
Accurate MAGPRO
<<locked>>
89%
57232
90%
**27
98%
Alliant Reloder-19
<<locked>>
87%
56797
89%
**84
100%
Alliant Reloder-22
<<locked>>
89%
56956
89%
**04
100%
Alliant Reloder-23
<<locked>>
90%
57174
90%
**51
100%
Alliant Reloder-25 👍
<<locked>>
94%
57276
90%
**20
100%
Alliant Reloder-26
<<locked>>
86%
57276
90%
**23
100%
Alliant Reloder-33
<<locked>>
97%
53345
84%
**64
95%
Baschieri & Pellagri 109
<<locked>>
91%
56956
89%
**48
97%
Bofors RP15 👍
<<locked>>
92%
57261
90%
**01
100%
Bofors RP30
<<locked>>
96%
57246
90%
**17
99%
Bofors RP5
<<locked>>
89%
56956
89%
**04
100%
Hodgdon H1000
<<locked>>
97%
55158
86%
**71
99%
Hodgdon H4350
<<locked>>
85%
57145
90%
**38
100%
Hodgdon H4831
<<locked>>
92%
57087
89%
**71
98%
Hodgdon H4831 SC
<<locked>>
88%
57392
90%
**68
98%
Hodgdon Hybrid 100V
<<locked>>
85%
57217
90%
**99
100%
Hodgdon Retumbo
<<locked>>
97%
49763
78%
**12
100%
Hodgdon TrailBoss
<<locked>>
97%
35853
56%
**33
100%
IMR 4350
<<locked>>
83%
57377
90%
**35
100%
IMR 4831
<<locked>>
86%
57145
90%
**38
100%
IMR 4955 Enduron
<<locked>>
90%
57334
90%
**48
99%
IMR 7828 SSC
<<locked>>
88%
57261
90%
**30
99%
[IMR 7977 Enduron]*
<<locked>>
94%
57000
89%
**82
93%
IMR 8133 Enduron
<<locked>>
97%
45600
71%
**07
97%
Lovex S071
<<locked>>
95%
57276
90%
**19
100%
Norma 217
<<locked>>
97%
45992
72%
**27
99%
Norma MRP
<<locked>>
87%
56913
89%
**27
100%
Ramshot Grand 👍
<<locked>>
86%
57421
90%
**33
99%
Ramshot Magnum
<<locked>>
89%
57130
90%
**78
100%
ReloadSwiss RS 14
<<locked>>
96%
36448
57%
**72
100%
ReloadSwiss RS 76 👍
<<locked>>
94%
56956
89%
**83
100%
ReloadSwiss RS 80
<<locked>>
96%
57072
89%
**27
98%
Rottweil R 904
<<locked>>
86%
56956
89%
**45
99%
Rottweil R 905
<<locked>>
87%
57043
89%
**81
100%
Somchem S361
<<locked>>
85%
57319
90%
**05
99%
Somchem S365
<<locked>>
83%
57261
90%
**41
100%
Somchem S385
<<locked>>
87%
57319
90%
**38
100%
Vihtavuori N165
<<locked>>
92%
56884
89%
**15
100%
[Vihtavuori N170]*
<<locked>>
97%
51068
80%
**17
93%
Vihtavuori N555
<<locked>>
87%
57130
90%
**61
100%
Vihtavuori N560 👍
<<locked>>
89%
56971
89%
**37
99%
Vihtavuori N565
<<locked>>
93%
57421
90%
**04
99%
Vihtavuori N568
<<locked>>
96%
56956
89%
**30
98%
Vihtavuori N570
<<locked>>
97%
56623
89%
**60
96%
Winchester StaBALL HD
<<locked>>
90%
57305
90%
**33
100%
Winchester Supreme 780
<<locked>>
86%
57043
89%
**35
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2209
<<locked>>
81%
47123
74%
**07
98%
ADI AR 2213
<<locked>>
81%
42308
66%
**18
95%
[ADI AR 2217]*
<<locked>>
82%
31807
50%
**17
90%
[ADI AR 2218]*
<<locked>>
94%
42250
66%
**41
90%
[ADI AR 2225]*
<<locked>>
81%
28413
45%
**41
91%
Accurate 3100
<<locked>>
81%
42496
67%
**46
99%
[Accurate MAGPRO]*
<<locked>>
81%
42105
66%
**05
93%
Alliant Reloder-19
<<locked>>
81%
47021
74%
**87
98%
Alliant Reloder-22
<<locked>>
81%
42960
67%
**31
97%
Alliant Reloder-23
<<locked>>
81%
41510
65%
**72
100%
Alliant Reloder-25
<<locked>>
81%
35723
56%
**77
98%
Alliant Reloder-26
<<locked>>
81%
47210
74%
**46
100%
[Alliant Reloder-33]*
<<locked>>
90%
40132
63%
**86
90%
[Baschieri & Pellagri 109]*
<<locked>>
81%
41176
65%
**20
91%
Bofors RP15
<<locked>>
81%
39595
62%
**43
96%
[Bofors RP30]*
<<locked>>
81%
33011
52%
**72
91%
Bofors RP5
<<locked>>
81%
42960
67%
**31
97%
[Hodgdon H1000]*
<<locked>>
82%
31807
50%
**17
90%
Hodgdon H4350
<<locked>>
81%
50546
79%
**14
99%
[Hodgdon H4831]*
<<locked>>
81%
39421
62%
**94
93%
Hodgdon H4831 SC
<<locked>>
81%
44280
69%
**12
95%
Hodgdon Hybrid 100V
<<locked>>
81%
50763
80%
**04
100%
[Hodgdon Retumbo]*
<<locked>>
81%
28413
45%
**41
91%
Hodgdon TrailBoss
<<locked>>
81%
28500
45%
**55
100%
IMR 4350
<<locked>>
81%
52910
83%
**56
100%
IMR 4831
<<locked>>
81%
48283
76%
**71
100%
IMR 4955 Enduron
<<locked>>
81%
43424
68%
**72
95%
IMR 7828 SSC
<<locked>>
81%
43598
68%
**61
96%
[IMR 7977 Enduron]*
<<locked>>
89%
48646
76%
**25
90%
[IMR 8133 Enduron]*
<<locked>>
87%
31908
50%
**53
90%
Lovex S071
<<locked>>
81%
36376
57%
**95
97%
[Norma 217]*
<<locked>>
84%
28123
44%
**41
90%
Norma MRP
<<locked>>
81%
45716
72%
**00
99%
Ramshot Grand
<<locked>>
81%
46543
73%
**23
97%
Ramshot Magnum
<<locked>>
81%
40886
64%
**56
97%
ReloadSwiss RS 14
<<locked>>
81%
29124
46%
**98
100%
ReloadSwiss RS 76
<<locked>>
81%
34229
54%
**61
95%
[ReloadSwiss RS 80]*
<<locked>>
84%
34766
54%
**38
90%
Rottweil R 904
<<locked>>
81%
48153
75%
**74
97%
Rottweil R 905
<<locked>>
81%
46456
73%
**77
98%
Somchem S361
<<locked>>
81%
49110
77%
**58
97%
Somchem S365
<<locked>>
81%
52446
82%
**63
100%
Somchem S385
<<locked>>
81%
46963
74%
**58
99%
Vihtavuori N165
<<locked>>
81%
39479
62%
**77
97%
[Vihtavuori N170]*
<<locked>>
92%
43221
68%
**56
90%
Vihtavuori N555
<<locked>>
81%
45992
72%
**61
100%
Vihtavuori N560
<<locked>>
81%
42975
67%
**48
95%
[Vihtavuori N565]*
<<locked>>
81%
37217
58%
**64
93%
[Vihtavuori N568]*
<<locked>>
84%
36390
57%
**77
90%
[Vihtavuori N570]*
<<locked>>
89%
41220
65%
**28
90%
Winchester StaBALL HD
<<locked>>
81%
39349
62%
**02
100%
Winchester Supreme 780
<<locked>>
81%
47398
74%
**51
98%

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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