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Load data for 9.3 x 66 Sako (370 Sako Mag) + .366 | 250gr | Hornady GMX

Recommended Powder(s): Accurate 2520, Hodgdon BL-C2, Lovex D073.6, Winchester 748, Winchester StaBALL Match

9.3 x 66 Sako (370 Sako Mag) + .366 | 250gr | Hornady GMX

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.366 | 250gr | Hornady GMX
Manufacturer SKU:
3562
Bullet Weight:
250gr | 16.2g
Bullet Diameter:
0.366" | 9.30mm
Bullet Length:
1.381" | 35.1mm
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:
0.681" | 17.3mm
Shank Seated Depth:
0.681" | 17.3mm
Case Capacity:
81.0 Grains of Water | 5.26 cm³
Primer Size:
Large Rifle (LR)
Max. allowed Pressure:
60191 psi | 4150 bar
LID:
LID_B2801_C1263
Last updated:
2025-01-01

Load data for 170 loads in caliber 9.3 x 66 Sako (370 Sako Mag) with .366 | 250gr | Hornady GMX bullet and 85 powders such as Accurate 2520, Hodgdon BL-C2, Lovex D073.6, 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>>
96%
53635
89%
**26
99%
ADI AR 2207
<<locked>>
83%
53272
88%
**92
100%
ADI AR 2208
<<locked>>
97%
46688
78%
**08
97%
ADI AR 2219
<<locked>>
87%
53519
89%
**97
100%
Accurate 2015
<<locked>>
92%
53432
89%
**48
100%
Accurate 2200
<<locked>>
93%
53127
88%
**70
97%
Accurate 2230
<<locked>>
89%
53795
89%
**84
99%
Accurate 2460
<<locked>>
90%
53243
88%
**90
100%
Accurate 2495
<<locked>>
96%
53359
89%
**20
100%
Accurate 2520 👍
<<locked>>
95%
53606
89%
**36
100%
Accurate 4064
<<locked>>
97%
45484
76%
**34
100%
Alliant AR-Comp
<<locked>>
95%
53940
90%
**10
100%
Alliant Reloder- TS 15.5
<<locked>>
97%
44788
74%
**21
98%
Alliant Reloder-10x
<<locked>>
89%
53621
89%
**54
100%
Alliant Reloder-15
<<locked>>
97%
49371
82%
**87
97%
Alliant Reloder-17
<<locked>>
97%
39769
66%
**88
96%
Alliant Reloder-7
<<locked>>
83%
53940
90%
**02
100%
Baschieri & Pellagri 106
<<locked>>
87%
53490
89%
**02
100%
Baschieri & Pellagri 107
<<locked>>
96%
53403
89%
**39
97%
Hodgdon BL-C2 👍
<<locked>>
95%
53911
90%
**62
99%
Hodgdon Benchmark
<<locked>>
92%
53853
89%
**61
100%
Hodgdon CFE BLK
<<locked>>
84%
54143
90%
**28
99%
Hodgdon CFE223
<<locked>>
97%
48080
80%
**93
96%
Hodgdon H322
<<locked>>
92%
53084
88%
**93
100%
Hodgdon H335
<<locked>>
87%
54012
90%
**20
100%
Hodgdon H380
<<locked>>
97%
46470
77%
**28
95%
Hodgdon H4198
<<locked>>
85%
53476
89%
**02
100%
[Hodgdon Hybrid 100V]*
<<locked>>
97%
32053
53%
**69
92%
[Hodgdon LVR]*
<<locked>>
97%
38493
64%
**13
92%
Hodgdon VARGET
<<locked>>
97%
46485
77%
**98
97%
IMR 3031
<<locked>>
96%
48240
80%
**84
100%
IMR 4064
<<locked>>
97%
45759
76%
**85
97%
[IMR 4166 Enduron]*
<<locked>>
97%
46296
77%
**43
92%
IMR 4198
<<locked>>
88%
53345
89%
**08
100%
IMR 4895
<<locked>>
97%
50299
84%
**13
98%
IMR 8208 XBR
<<locked>>
94%
54085
90%
**03
99%
Lovex D073.4
<<locked>>
88%
53592
89%
**80
100%
Lovex D073.5
<<locked>>
90%
53737
89%
**93
100%
Lovex D073.6 👍
<<locked>>
97%
53374
89%
**26
100%
Lovex S060
<<locked>>
95%
53708
89%
**54
98%
Lovex S062
<<locked>>
97%
48283
80%
**41
99%
[Lovex S065]*
<<locked>>
97%
39523
66%
**80
92%
Norma 200
<<locked>>
85%
53795
89%
**34
100%
Norma 201
<<locked>>
96%
53127
88%
**90
99%
Norma 202
<<locked>>
97%
53809
89%
**10
100%
Norma 203B
<<locked>>
97%
48501
81%
**80
98%
Ramshot Big Game
<<locked>>
97%
48791
81%
**97
98%
Ramshot TAC
<<locked>>
94%
54114
90%
**97
96%
Ramshot Wild Boar
<<locked>>
94%
53766
89%
**33
98%
Ramshot X-Terminator
<<locked>>
91%
53708
89%
**80
98%
ReloadSwiss RS 40
<<locked>>
90%
53374
89%
**87
100%
[ReloadSwiss RS 50]*
<<locked>>
97%
48066
80%
**18
94%
ReloadSwiss RS 52
<<locked>>
97%
46891
78%
**97
99%
ReloadSwiss RS 60
<<locked>>
97%
39059
65%
**75
96%
Rottweil R 901
<<locked>>
94%
53519
89%
**77
100%
Rottweil R 902
<<locked>>
97%
50705
84%
**54
99%
Rottweil R 903
<<locked>>
97%
41292
69%
**65
97%
SNPE Vectan SP 10
<<locked>>
86%
53606
89%
**00
100%
SNPE Vectan SP 11
<<locked>>
97%
43947
73%
**25
97%
SNPE Vectan SP 7
<<locked>>
95%
53954
90%
**03
97%
SNPE Vectan SP 9
<<locked>>
97%
53998
90%
**26
99%
SNPE Vectan Tubal 3000
<<locked>>
95%
53374
89%
**18
100%
SNPE Vectan Tubal 5000
<<locked>>
97%
46427
77%
**36
100%
[Shooters World Long Rifle]*
<<locked>>
97%
39523
66%
**80
92%
Shooters World Match Rifle
<<locked>>
97%
53374
89%
**26
100%
Shooters World Precision
<<locked>>
97%
48283
80%
**41
99%
Shooters World Tactical Rifle
<<locked>>
88%
53867
89%
**64
99%
Somchem S321
<<locked>>
91%
53780
89%
**20
100%
Somchem S335
<<locked>>
96%
53940
90%
**48
100%
Somchem S341
<<locked>>
95%
53896
90%
**10
98%
Somchem S355
<<locked>>
97%
43207
72%
**82
97%
[Somchem S365]*
<<locked>>
97%
30632
51%
**92
94%
Vihtavuori N120
<<locked>>
86%
53127
88%
**46
100%
Vihtavuori N130
<<locked>>
91%
53417
89%
**05
100%
Vihtavuori N133
<<locked>>
97%
52272
87%
**08
100%
Vihtavuori N135
<<locked>>
97%
41104
68%
**23
100%
Vihtavuori N140
<<locked>>
97%
50111
83%
**41
100%
Vihtavuori N150
<<locked>>
97%
36245
60%
**38
97%
[Vihtavuori N160]*
<<locked>>
97%
38377
64%
**93
93%
Vihtavuori N530
<<locked>>
92%
53983
90%
**13
99%
Vihtavuori N540
<<locked>>
97%
50256
83%
**70
100%
[Vihtavuori N550]*
<<locked>>
97%
37826
63%
**29
93%
Winchester 6.5 StaBALL
<<locked>>
97%
38145
63%
**57
95%
Winchester 748 👍
<<locked>>
92%
53490
89%
**56
100%
Winchester StaBALL Match 👍
<<locked>>
90%
53664
89%
**39
99%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
[ADI AR 2206H]*
<<locked>>
81%
33823
56%
**85
94%
ADI AR 2207
<<locked>>
81%
49719
83%
**49
100%
[ADI AR 2208]*
<<locked>>
81%
28993
48%
**54
90%
ADI AR 2219
<<locked>>
81%
44498
74%
**69
100%
Accurate 2015
<<locked>>
81%
38450
64%
**31
100%
[Accurate 2200]*
<<locked>>
81%
36027
60%
**85
92%
Accurate 2230
<<locked>>
81%
40132
67%
**80
97%
Accurate 2460
<<locked>>
81%
40059
67%
**90
98%
Accurate 2495
<<locked>>
81%
32779
54%
**01
100%
Accurate 2520
<<locked>>
81%
33591
56%
**08
97%
Accurate 4064
<<locked>>
81%
27572
46%
**87
96%
Alliant AR-Comp
<<locked>>
81%
33852
56%
**21
100%
[Alliant Reloder- TS 15.5]*
<<locked>>
81%
27470
46%
**60
92%
Alliant Reloder-10x
<<locked>>
81%
42148
70%
**93
100%
[Alliant Reloder-15]*
<<locked>>
81%
29805
50%
**13
91%
[Alliant Reloder-17]*
<<locked>>
87%
29269
49%
**39
90%
Alliant Reloder-7
<<locked>>
81%
50633
84%
**59
100%
Baschieri & Pellagri 106
<<locked>>
81%
44628
74%
**83
100%
[Baschieri & Pellagri 107]*
<<locked>>
81%
33011
55%
**75
91%
Hodgdon BL-C2
<<locked>>
81%
33475
56%
**18
95%
Hodgdon Benchmark
<<locked>>
81%
38247
64%
**11
97%
Hodgdon CFE BLK
<<locked>>
81%
49110
82%
**59
99%
[Hodgdon CFE223]*
<<locked>>
84%
31734
53%
**72
90%
Hodgdon H322
<<locked>>
81%
37492
62%
**54
99%
Hodgdon H335
<<locked>>
81%
43598
72%
**65
100%
[Hodgdon H380]*
<<locked>>
86%
32401
54%
**65
90%
Hodgdon H4198
<<locked>>
81%
47471
79%
**20
100%
[Hodgdon Hybrid 100V]*
<<locked>>
92%
28094
47%
**70
90%
[Hodgdon LVR]*
<<locked>>
93%
34287
57%
**28
90%
[Hodgdon VARGET]*
<<locked>>
81%
29153
48%
**57
90%
IMR 3031
<<locked>>
81%
29936
50%
**49
98%
[IMR 4064]*
<<locked>>
81%
28442
47%
**34
90%
[IMR 4166 Enduron]*
<<locked>>
92%
40495
67%
**44
90%
IMR 4198
<<locked>>
81%
43323
72%
**70
100%
[IMR 4895]*
<<locked>>
81%
30472
51%
**42
92%
IMR 8208 XBR
<<locked>>
81%
35795
59%
**01
96%
Lovex D073.4
<<locked>>
81%
41481
69%
**00
98%
Lovex D073.5
<<locked>>
81%
39639
66%
**83
98%
Lovex D073.6
<<locked>>
81%
31662
53%
**69
97%
[Lovex S060]*
<<locked>>
81%
35201
58%
**46
94%
[Lovex S062]*
<<locked>>
81%
29660
49%
**90
94%
[Lovex S065]*
<<locked>>
93%
35273
59%
**95
90%
Norma 200
<<locked>>
81%
47790
79%
**59
100%
Norma 201
<<locked>>
81%
33330
55%
**56
95%
Norma 202
<<locked>>
81%
32866
55%
**69
98%
[Norma 203B]*
<<locked>>
81%
29211
49%
**03
91%
[Ramshot Big Game]*
<<locked>>
81%
29109
48%
**00
90%
[Ramshot TAC]*
<<locked>>
81%
35694
59%
**88
91%
[Ramshot Wild Boar]*
<<locked>>
81%
34461
57%
**08
94%
Ramshot X-Terminator
<<locked>>
81%
39088
65%
**47
95%
ReloadSwiss RS 40
<<locked>>
81%
40132
67%
**87
98%
[ReloadSwiss RS 50]*
<<locked>>
90%
38130
63%
**51
90%
[ReloadSwiss RS 52]*
<<locked>>
81%
27905
46%
**06
93%
[ReloadSwiss RS 60]*
<<locked>>
87%
28384
47%
**10
90%
Rottweil R 901
<<locked>>
81%
36854
61%
**08
98%
Rottweil R 902
<<locked>>
81%
31763
53%
**16
95%
[Rottweil R 903]*
<<locked>>
82%
25382
42%
**21
90%
SNPE Vectan SP 10
<<locked>>
81%
44831
74%
**75
100%
[SNPE Vectan SP 11]*
<<locked>>
83%
28427
47%
**90
90%
[SNPE Vectan SP 7]*
<<locked>>
81%
33460
56%
**59
91%
[SNPE Vectan SP 9]*
<<locked>>
81%
32314
54%
**52
93%
SNPE Vectan Tubal 3000
<<locked>>
81%
35302
59%
**36
98%
SNPE Vectan Tubal 5000
<<locked>>
81%
28601
48%
**21
97%
[Shooters World Long Rifle]*
<<locked>>
93%
35273
59%
**95
90%
Shooters World Match Rifle
<<locked>>
81%
31662
53%
**69
97%
[Shooters World Precision]*
<<locked>>
81%
29660
49%
**90
94%
Shooters World Tactical Rifle
<<locked>>
81%
42598
71%
**97
97%
Somchem S321
<<locked>>
81%
38087
63%
**77
97%
Somchem S335
<<locked>>
81%
34650
58%
**42
99%
[Somchem S341]*
<<locked>>
81%
33330
55%
**69
93%
[Somchem S355]*
<<locked>>
81%
26440
44%
**24
91%
[Somchem S365]*
<<locked>>
91%
25846
43%
**54
90%
Vihtavuori N120
<<locked>>
81%
46369
77%
**60
100%
Vihtavuori N130
<<locked>>
81%
39349
65%
**08
100%
Vihtavuori N133
<<locked>>
81%
33011
55%
**06
99%
Vihtavuori N135
<<locked>>
81%
25498
42%
**01
97%
Vihtavuori N140
<<locked>>
81%
30589
51%
**06
97%
[Vihtavuori N150]*
<<locked>>
82%
23003
38%
**13
90%
[Vihtavuori N160]*
<<locked>>
92%
32460
54%
**69
90%
Vihtavuori N530
<<locked>>
81%
37420
62%
**47
97%
Vihtavuori N540
<<locked>>
81%
30356
50%
**16
97%
[Vihtavuori N550]*
<<locked>>
91%
32097
53%
**05
90%
[Winchester 6.5 StaBALL]*
<<locked>>
88%
28805
48%
**44
90%
Winchester 748
<<locked>>
81%
37057
62%
**90
97%
Winchester StaBALL Match
<<locked>>
81%
39044
65%
**10
96%

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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