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Load data for 7 mm KM Katzmaier + .284 | 145gr | Hasler ARIETE

Recommended Powder(s):

7 mm KM Katzmaier + .284 | 145gr | Hasler ARIETE

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.284 | 145gr | Hasler ARIETE
Manufacturer SKU:
A7-145
Bullet Weight:
145gr | 9.4g
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_B7065_C1057
Last updated:
2026-03-26
Recommended Twist Rate:
1:9 - 1:8

Load data for 106 loads in caliber 7 mm KM Katzmaier with .284 | 145gr | Hasler ARIETE bullet and 53 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>>
85%
57435
90%
**07
100%
ADI AR 2213
<<locked>>
87%
57000
89%
**43
100%
ADI AR 2217
<<locked>>
95%
57014
89%
**40
100%
ADI AR 2218
<<locked>>
97%
52315
82%
**46
97%
ADI AR 2225 👍
<<locked>>
97%
54694
86%
**23
100%
Accurate 3100
<<locked>>
87%
57000
89%
**35
100%
[Accurate 8700]*
<<locked>>
97%
41234
65%
**12
92%
Accurate MAGPRO
<<locked>>
87%
57261
90%
**46
99%
Alliant Reloder-19
<<locked>>
85%
57014
89%
**00
100%
Alliant Reloder-22
<<locked>>
87%
57217
90%
**30
100%
Alliant Reloder-23
<<locked>>
88%
57029
89%
**61
100%
Alliant Reloder-25
<<locked>>
92%
57116
90%
**30
100%
Alliant Reloder-26
<<locked>>
83%
56913
89%
**36
100%
Alliant Reloder-33
<<locked>>
96%
57159
90%
**82
98%
Alliant Reloder-50
<<locked>>
97%
49617
78%
**25
95%
Baschieri & Pellagri 109
<<locked>>
89%
57159
90%
**94
98%
Bofors RP15
<<locked>>
89%
57377
90%
**33
100%
Bofors RP30 👍
<<locked>>
94%
57290
90%
**56
100%
Bofors RP5
<<locked>>
87%
57217
90%
**30
100%
Hodgdon H1000
<<locked>>
95%
57014
89%
**40
100%
Hodgdon H4831
<<locked>>
90%
57348
90%
**94
99%
Hodgdon H4831 SC
<<locked>>
86%
57348
90%
**94
99%
Hodgdon Retumbo 👍
<<locked>>
97%
54694
86%
**23
100%
Hodgdon TrailBoss
<<locked>>
97%
36201
57%
**91
100%
IMR 4831
<<locked>>
84%
57043
89%
**38
100%
IMR 4955 Enduron
<<locked>>
88%
57261
90%
**68
99%
IMR 7828 SSC
<<locked>>
86%
56739
89%
**50
100%
IMR 7977 Enduron
<<locked>>
92%
57058
89%
**28
95%
IMR 8133 Enduron
<<locked>>
97%
49835
78%
**31
99%
[Lovex D100]*
<<locked>>
96%
56913
89%
**45
93%
Lovex S071
<<locked>>
92%
57000
89%
**35
100%
Norma 217
<<locked>>
97%
51227
80%
**68
100%
Norma MRP
<<locked>>
85%
56840
89%
**40
100%
Ramshot Grand
<<locked>>
84%
57203
90%
**59
100%
Ramshot Magnum
<<locked>>
87%
57203
90%
**97
100%
ReloadSwiss RS 14
<<locked>>
97%
37086
58%
**34
100%
ReloadSwiss RS 76 👍
<<locked>>
91%
56985
89%
**86
100%
ReloadSwiss RS 80
<<locked>>
94%
56971
89%
**73
99%
Rottweil R 904
<<locked>>
84%
57319
90%
**77
100%
Rottweil R 905
<<locked>>
85%
57421
90%
**07
100%
[SNPE Vectan SP 13]*
<<locked>>
97%
43323
68%
**38
93%
[Shooters World 50 BMG]*
<<locked>>
96%
56913
89%
**45
93%
Somchem S361
<<locked>>
83%
57087
89%
**38
99%
Somchem S385
<<locked>>
85%
57305
90%
**68
100%
Vihtavuori N165
<<locked>>
90%
57377
90%
**54
100%
Vihtavuori N170
<<locked>>
97%
54810
86%
**31
96%
Vihtavuori N555
<<locked>>
85%
57406
90%
**81
100%
Vihtavuori N560
<<locked>>
87%
57087
89%
**56
99%
Vihtavuori N565 👍
<<locked>>
91%
57363
90%
**27
100%
Vihtavuori N568
<<locked>>
94%
57058
89%
**63
99%
Vihtavuori N570
<<locked>>
95%
57000
89%
**05
97%
Winchester StaBALL HD
<<locked>>
88%
57406
90%
**50
100%
Winchester Supreme 780
<<locked>>
84%
57000
89%
**58
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2209
<<locked>>
81%
50894
80%
**99
99%
ADI AR 2213
<<locked>>
81%
45876
72%
**33
98%
[ADI AR 2217]*
<<locked>>
81%
33837
53%
**44
94%
[ADI AR 2218]*
<<locked>>
88%
37637
59%
**95
90%
ADI AR 2225
<<locked>>
81%
30951
48%
**92
96%
Accurate 3100
<<locked>>
81%
46238
72%
**51
100%
[Accurate 8700]*
<<locked>>
94%
37289
58%
**17
90%
Accurate MAGPRO
<<locked>>
81%
45977
72%
**30
96%
Alliant Reloder-19
<<locked>>
81%
50720
79%
**95
99%
Alliant Reloder-22
<<locked>>
81%
46470
73%
**40
99%
Alliant Reloder-23
<<locked>>
81%
45252
71%
**74
100%
Alliant Reloder-25
<<locked>>
81%
39305
62%
**99
100%
Alliant Reloder-26
<<locked>>
81%
51967
81%
**51
100%
[Alliant Reloder-33]*
<<locked>>
85%
36492
57%
**43
90%
[Alliant Reloder-50]*
<<locked>>
90%
37695
59%
**62
90%
Baschieri & Pellagri 109
<<locked>>
81%
43932
69%
**38
95%
Bofors RP15
<<locked>>
81%
43120
68%
**67
98%
Bofors RP30
<<locked>>
81%
36521
57%
**17
95%
Bofors RP5
<<locked>>
81%
46470
73%
**40
99%
[Hodgdon H1000]*
<<locked>>
81%
33837
53%
**44
94%
Hodgdon H4831
<<locked>>
81%
42569
67%
**12
96%
Hodgdon H4831 SC
<<locked>>
81%
47558
75%
**17
98%
Hodgdon Retumbo
<<locked>>
81%
30951
48%
**92
96%
Hodgdon TrailBoss
<<locked>>
81%
28660
45%
**21
100%
IMR 4831
<<locked>>
81%
51909
81%
**66
100%
IMR 4955 Enduron
<<locked>>
81%
46441
73%
**71
98%
IMR 7828 SSC
<<locked>>
81%
47819
75%
**82
98%
[IMR 7977 Enduron]*
<<locked>>
84%
43743
69%
**69
90%
[IMR 8133 Enduron]*
<<locked>>
81%
28442
45%
**03
90%
[Lovex D100]*
<<locked>>
91%
47311
74%
**71
90%
Lovex S071
<<locked>>
81%
39537
62%
**10
99%
[Norma 217]*
<<locked>>
81%
28558
45%
**23
93%
Norma MRP
<<locked>>
81%
49806
78%
**18
100%
Ramshot Grand
<<locked>>
81%
50908
80%
**45
99%
Ramshot Magnum
<<locked>>
81%
44773
70%
**84
99%
ReloadSwiss RS 14
<<locked>>
81%
29544
46%
**67
100%
ReloadSwiss RS 76
<<locked>>
81%
37724
59%
**18
99%
[ReloadSwiss RS 80]*
<<locked>>
81%
34606
54%
**90
92%
Rottweil R 904
<<locked>>
81%
51634
81%
**72
99%
Rottweil R 905
<<locked>>
81%
50256
79%
**86
100%
[SNPE Vectan SP 13]*
<<locked>>
93%
37869
59%
**10
90%
[Shooters World 50 BMG]*
<<locked>>
91%
47311
74%
**71
90%
Somchem S361
<<locked>>
81%
52605
82%
**63
99%
Somchem S385
<<locked>>
81%
50372
79%
**53
100%
Vihtavuori N165
<<locked>>
81%
42772
67%
**95
99%
[Vihtavuori N170]*
<<locked>>
87%
39363
62%
**10
90%
Vihtavuori N555
<<locked>>
81%
49937
78%
**59
100%
Vihtavuori N560
<<locked>>
81%
46963
74%
**69
98%
Vihtavuori N565
<<locked>>
81%
40872
64%
**02
96%
[Vihtavuori N568]*
<<locked>>
81%
35795
56%
**17
92%
[Vihtavuori N570]*
<<locked>>
83%
37347
59%
**76
90%
Winchester StaBALL HD
<<locked>>
81%
44106
69%
**30
100%
Winchester Supreme 780
<<locked>>
81%
51126
80%
**59
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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