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Load data for 9.3 x 66 Sako (370 Sako Mag) + .366 | 250gr | Fox Classic Hunter

Recommended Powder(s): Accurate 2520, Somchem S321, Vihtavuori N530, Winchester 748, Winchester StaBALL Match

9.3 x 66 Sako (370 Sako Mag) + .366 | 250gr | Fox Classic Hunter

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.366 | 250gr | Fox Classic Hunter
Manufacturer SKU:
9.3 mm (0.366) - 250 gr
Bullet Weight:
250gr | 16.2g
Bullet Diameter:
0.366" | 9.30mm
Bullet Length:
1.490" | 37.8mm
Caliber:
9.3 x 66 Sako (370 Sako Mag) load data
Case Length (l3):
2.590" | 65.8mm
Cartridge Length (C.O.L.):
3.290" | 83.6mm
Seated Depth:
0.790" | 20.1mm
Shank Seated Depth:
0.790" | 20.1mm
Case Capacity:
81.0 Grains of Water | 5.26 cm³
Primer Size:
Large Rifle (LR)
Max. allowed Pressure:
60191 psi | 4150 bar
LID:
LID_B7125_C1263
Last updated:
2025-01-01

Load data for 160 loads in caliber 9.3 x 66 Sako (370 Sako Mag) with .366 | 250gr | Fox Classic Hunter bullet and 80 powders such as Accurate 2520, Somchem S321, Vihtavuori N530, Winchester 748, Winchester StaBALL Match. 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 2206H
<<locked>>
97%
52011
86%
**84
98%
ADI AR 2207
<<locked>>
85%
53548
89%
**75
100%
ADI AR 2208
<<locked>>
97%
44164
73%
**39
96%
ADI AR 2219
<<locked>>
88%
53519
89%
**80
100%
Accurate 2015
<<locked>>
93%
53505
89%
**25
100%
Accurate 2200
<<locked>>
95%
53592
89%
**51
97%
Accurate 2230
<<locked>>
91%
54070
90%
**67
99%
Accurate 2460
<<locked>>
91%
53940
90%
**74
100%
Accurate 2495
<<locked>>
97%
51895
86%
**87
100%
Accurate 2520 👍
<<locked>>
96%
53171
88%
**10
100%
Accurate 4064
<<locked>>
97%
42714
71%
**69
100%
Alliant AR-Comp
<<locked>>
97%
53229
88%
**87
100%
Alliant Reloder- TS 15.5
<<locked>>
97%
42685
71%
**62
97%
Alliant Reloder-10x
<<locked>>
90%
53476
89%
**34
100%
Alliant Reloder-15
<<locked>>
97%
46137
77%
**18
96%
[Alliant Reloder-17]*
<<locked>>
97%
37637
63%
**20
94%
Alliant Reloder-7
<<locked>>
84%
53867
89%
**85
100%
Baschieri & Pellagri 106
<<locked>>
88%
53664
89%
**85
100%
Baschieri & Pellagri 107
<<locked>>
97%
52025
86%
**93
97%
Hodgdon BL-C2
<<locked>>
96%
53751
89%
**39
99%
Hodgdon Benchmark
<<locked>>
94%
53940
90%
**38
99%
Hodgdon CFE BLK
<<locked>>
85%
53998
90%
**05
99%
Hodgdon CFE223
<<locked>>
97%
46050
77%
**34
95%
Hodgdon H322
<<locked>>
94%
53519
89%
**80
100%
Hodgdon H335
<<locked>>
89%
53838
89%
**90
100%
[Hodgdon H380]*
<<locked>>
97%
44324
74%
**69
94%
Hodgdon H4198
<<locked>>
86%
53708
89%
**82
100%
Hodgdon VARGET
<<locked>>
97%
43947
73%
**39
96%
IMR 3031
<<locked>>
97%
46093
77%
**34
100%
IMR 4064
<<locked>>
97%
43192
72%
**20
96%
IMR 4198
<<locked>>
90%
53127
88%
**88
100%
IMR 4895
<<locked>>
97%
46978
78%
**44
97%
IMR 8208 XBR
<<locked>>
96%
54128
90%
**80
99%
Lovex D073.4
<<locked>>
90%
53127
88%
**51
100%
Lovex D073.5
<<locked>>
92%
53447
89%
**67
100%
Lovex D073.6
<<locked>>
97%
50140
83%
**67
100%
Lovex S060
<<locked>>
97%
53534
89%
**31
98%
Lovex S062
<<locked>>
97%
45484
76%
**75
98%
Norma 200
<<locked>>
87%
53896
90%
**18
100%
Norma 201
<<locked>>
97%
51401
85%
**48
99%
Norma 202
<<locked>>
97%
51561
86%
**64
100%
Norma 203B
<<locked>>
97%
45266
75%
**05
97%
Ramshot Big Game
<<locked>>
97%
45716
76%
**25
96%
Ramshot TAC
<<locked>>
95%
53505
89%
**67
96%
Ramshot Wild Boar
<<locked>>
96%
53621
89%
**13
98%
Ramshot X-Terminator
<<locked>>
92%
53853
89%
**57
98%
ReloadSwiss RS 40
<<locked>>
91%
53432
89%
**70
100%
[ReloadSwiss RS 50]*
<<locked>>
97%
45005
75%
**46
92%
ReloadSwiss RS 52
<<locked>>
97%
43801
73%
**21
98%
ReloadSwiss RS 60
<<locked>>
97%
36666
61%
**97
95%
Rottweil R 901
<<locked>>
96%
53998
90%
**61
100%
Rottweil R 902
<<locked>>
97%
48196
80%
**92
98%
Rottweil R 903
<<locked>>
97%
38885
65%
**03
96%
SNPE Vectan BA6 1/2
<<locked>>
85%
54070
90%
**56
100%
SNPE Vectan SP 10
<<locked>>
88%
53185
88%
**74
100%
SNPE Vectan SP 11
<<locked>>
97%
41452
69%
**59
95%
SNPE Vectan SP 7
<<locked>>
97%
53954
90%
**80
96%
SNPE Vectan SP 9
<<locked>>
97%
50763
84%
**64
98%
SNPE Vectan Tubal 3000
<<locked>>
96%
53969
90%
**05
100%
SNPE Vectan Tubal 5000
<<locked>>
96%
43787
73%
**80
100%
Shooters World Match Rifle
<<locked>>
97%
50140
83%
**67
100%
Shooters World Precision
<<locked>>
97%
45484
76%
**75
98%
Shooters World Tactical Rifle
<<locked>>
89%
53766
89%
**34
99%
Somchem S321 👍
<<locked>>
93%
53998
90%
**03
99%
Somchem S335
<<locked>>
97%
53127
88%
**15
100%
Somchem S341
<<locked>>
97%
53272
88%
**84
98%
Somchem S355
<<locked>>
97%
40625
68%
**20
96%
[Somchem S365]*
<<locked>>
97%
29138
48%
**33
92%
Vihtavuori N120
<<locked>>
88%
54070
90%
**39
100%
Vihtavuori N130
<<locked>>
93%
53954
90%
**95
100%
Vihtavuori N133
<<locked>>
97%
49806
83%
**59
100%
Vihtavuori N135
<<locked>>
97%
38856
65%
**67
100%
Vihtavuori N140
<<locked>>
96%
47297
79%
**82
100%
Vihtavuori N150
<<locked>>
97%
34330
57%
**85
96%
Vihtavuori N530 👍
<<locked>>
94%
53954
90%
**87
99%
Vihtavuori N540
<<locked>>
97%
47123
78%
**08
100%
[Vihtavuori N550]*
<<locked>>
97%
35955
60%
**67
91%
[Winchester 6.5 StaBALL]*
<<locked>>
97%
35969
60%
**85
93%
Winchester 748 👍
<<locked>>
94%
53359
89%
**30
100%
Winchester StaBALL Match 👍
<<locked>>
91%
53214
88%
**13
99%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
[ADI AR 2206H]*
<<locked>>
81%
31981
53%
**26
92%
ADI AR 2207
<<locked>>
81%
47123
78%
**00
100%
[ADI AR 2208]*
<<locked>>
84%
30139
50%
**64
90%
ADI AR 2219
<<locked>>
81%
42177
70%
**20
100%
Accurate 2015
<<locked>>
81%
36753
61%
**82
100%
[Accurate 2200]*
<<locked>>
81%
34287
57%
**33
91%
Accurate 2230
<<locked>>
81%
37550
62%
**15
96%
Accurate 2460
<<locked>>
81%
37782
63%
**31
97%
Accurate 2495
<<locked>>
81%
30516
51%
**42
99%
Accurate 2520
<<locked>>
81%
31459
52%
**52
96%
Accurate 4064
<<locked>>
81%
25701
43%
**24
95%
Alliant AR-Comp
<<locked>>
81%
32155
53%
**69
100%
[Alliant Reloder- TS 15.5]*
<<locked>>
81%
26121
43%
**08
90%
Alliant Reloder-10x
<<locked>>
81%
40103
67%
**47
100%
[Alliant Reloder-15]*
<<locked>>
82%
29225
49%
**83
90%
[Alliant Reloder-17]*
<<locked>>
90%
30792
51%
**56
90%
Alliant Reloder-7
<<locked>>
81%
48472
81%
**13
100%
Baschieri & Pellagri 106
<<locked>>
81%
42583
71%
**34
100%
[Baschieri & Pellagri 107]*
<<locked>>
82%
31792
53%
**29
90%
[Hodgdon BL-C2]*
<<locked>>
81%
31763
53%
**62
94%
Hodgdon Benchmark
<<locked>>
81%
36637
61%
**59
96%
Hodgdon CFE BLK
<<locked>>
81%
47195
78%
**06
98%
[Hodgdon CFE223]*
<<locked>>
87%
32938
55%
**82
90%
Hodgdon H322
<<locked>>
81%
35766
59%
**08
99%
Hodgdon H335
<<locked>>
81%
41510
69%
**16
99%
[Hodgdon H380]*
<<locked>>
88%
33373
55%
**69
90%
Hodgdon H4198
<<locked>>
81%
45701
76%
**74
100%
[Hodgdon VARGET]*
<<locked>>
84%
30458
51%
**70
90%
IMR 3031
<<locked>>
81%
28094
47%
**90
98%
[IMR 4064]*
<<locked>>
84%
29356
49%
**41
90%
IMR 4198
<<locked>>
81%
41234
69%
**21
100%
[IMR 4895]*
<<locked>>
81%
28703
48%
**83
91%
IMR 8208 XBR
<<locked>>
81%
33910
56%
**49
95%
Lovex D073.4
<<locked>>
81%
39305
65%
**44
98%
Lovex D073.5
<<locked>>
81%
37536
62%
**24
97%
Lovex D073.6
<<locked>>
81%
29341
49%
**03
95%
[Lovex S060]*
<<locked>>
81%
33823
56%
**96
93%
[Lovex S062]*
<<locked>>
81%
28253
47%
**41
93%
Norma 200
<<locked>>
81%
45310
75%
**06
100%
[Norma 201]*
<<locked>>
81%
31502
52%
**00
94%
Norma 202
<<locked>>
81%
31227
52%
**16
97%
[Norma 203B]*
<<locked>>
81%
28021
47%
**57
90%
[Ramshot Big Game]*
<<locked>>
84%
29994
50%
**06
90%
[Ramshot TAC]*
<<locked>>
83%
35694
59%
**69
90%
[Ramshot Wild Boar]*
<<locked>>
81%
32561
54%
**49
92%
[Ramshot X-Terminator]*
<<locked>>
81%
37086
62%
**88
94%
ReloadSwiss RS 40
<<locked>>
81%
38348
64%
**38
98%
[ReloadSwiss RS 50]*
<<locked>>
93%
40001
66%
**57
90%
[ReloadSwiss RS 52]*
<<locked>>
81%
26411
44%
**44
91%
[ReloadSwiss RS 60]*
<<locked>>
90%
29573
49%
**19
90%
Rottweil R 901
<<locked>>
81%
34954
58%
**56
98%
[Rottweil R 902]*
<<locked>>
81%
29936
50%
**57
93%
[Rottweil R 903]*
<<locked>>
84%
25860
43%
**18
90%
SNPE Vectan BA6 1/2
<<locked>>
81%
48660
81%
**93
100%
SNPE Vectan SP 10
<<locked>>
81%
42424
70%
**20
99%
[SNPE Vectan SP 11]*
<<locked>>
86%
29573
49%
**00
90%
[SNPE Vectan SP 7]*
<<locked>>
83%
34084
57%
**52
90%
[SNPE Vectan SP 9]*
<<locked>>
81%
30763
51%
**96
92%
SNPE Vectan Tubal 3000
<<locked>>
81%
33533
56%
**87
97%
SNPE Vectan Tubal 5000
<<locked>>
81%
27267
45%
**69
96%
Shooters World Match Rifle
<<locked>>
81%
29341
49%
**03
95%
[Shooters World Precision]*
<<locked>>
81%
28253
47%
**41
93%
Shooters World Tactical Rifle
<<locked>>
81%
40524
67%
**41
96%
Somchem S321
<<locked>>
81%
35984
60%
**18
96%
Somchem S335
<<locked>>
81%
32721
54%
**90
98%
[Somchem S341]*
<<locked>>
81%
31691
53%
**10
92%
[Somchem S355]*
<<locked>>
83%
26629
44%
**18
90%
[Somchem S365]*
<<locked>>
94%
26789
44%
**64
90%
Vihtavuori N120
<<locked>>
81%
44222
73%
**18
100%
Vihtavuori N130
<<locked>>
81%
37231
62%
**52
100%
Vihtavuori N133
<<locked>>
81%
31212
52%
**57
99%
Vihtavuori N135
<<locked>>
81%
23888
40%
**46
96%
Vihtavuori N140
<<locked>>
81%
29211
49%
**54
96%
[Vihtavuori N150]*
<<locked>>
85%
23714
39%
**19
90%
Vihtavuori N530
<<locked>>
81%
35607
59%
**92
96%
Vihtavuori N540
<<locked>>
81%
28848
48%
**64
96%
[Vihtavuori N550]*
<<locked>>
94%
33286
55%
**08
90%
[Winchester 6.5 StaBALL]*
<<locked>>
91%
30052
50%
**51
90%
Winchester 748
<<locked>>
81%
35027
58%
**28
96%
Winchester StaBALL Match
<<locked>>
81%
36970
61%
**51
95%

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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