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Load data for 9.3 x 66 Sako (370 Sako Mag) + .366 | 286gr | Woodleigh HS

Recommended Powder(s): Hodgdon BL-C2, IMR 4895, Ramshot Big Game, ReloadSwiss RS 52, ReloadSwiss RS 60

9.3 x 66 Sako (370 Sako Mag) + .366 | 286gr | Woodleigh HS

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.366 | 286gr | Woodleigh HS
Manufacturer SKU:
H9.3
Bullet Weight:
286gr | 18.5g
Bullet Diameter:
0.366" | 9.30mm
Bullet Length:
<<locked>>
Caliber:
9.3 x 66 Sako (370 Sako Mag) load data
Case Length (l3):
2.590" | 65.8mm
Cartridge Length (C.O.L.):
<<locked>>
Seated Depth:
<<locked>>
Shank Seated Depth:
<<locked>>
Case Capacity:
81.0 Grains of Water | 5.26 cm³
Primer Size:
Large Rifle (LR)
Max. allowed Pressure:
60191 psi | 4150 bar
LID:
LID_B12050_C1263
Last updated:
2026-02-04

Load data for 200 loads in caliber 9.3 x 66 Sako (370 Sako Mag) with .366 | 286gr | Woodleigh HS bullet and 100 powders such as Hodgdon BL-C2, IMR 4895, Ramshot Big Game, ReloadSwiss RS 52, ReloadSwiss RS 60. 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".

  • No data yet

  • 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>>
92%
53316
89%
**65
100%
ADI AR 2208
<<locked>>
97%
52156
87%
**33
99%
ADI AR 2219
<<locked>>
84%
54157
90%
**36
100%
Accurate 2015
<<locked>>
88%
53751
89%
**83
100%
Accurate 2200
<<locked>>
90%
53461
89%
**29
99%
Accurate 2230
<<locked>>
86%
53824
89%
**29
100%
Accurate 2460
<<locked>>
86%
53693
89%
**33
100%
Accurate 2495
<<locked>>
92%
53417
89%
**49
100%
Accurate 2520
<<locked>>
91%
54012
90%
**72
100%
[Accurate 2700]*
<<locked>>
97%
50879
85%
**57
94%
Accurate 4064
<<locked>>
97%
51721
86%
**49
100%
Accurate 4350
<<locked>>
97%
38174
63%
**15
96%
Alliant AR-Comp
<<locked>>
91%
53301
89%
**29
100%
Alliant Power Pro 2000-MR
<<locked>>
95%
54172
90%
**80
99%
Alliant Reloder- TS 15.5
<<locked>>
97%
50894
85%
**49
100%
Alliant Reloder-10x
<<locked>>
86%
53809
89%
**87
100%
Alliant Reloder-15
<<locked>>
96%
53867
89%
**92
99%
Alliant Reloder-16
<<locked>>
97%
39624
66%
**21
96%
Alliant Reloder-17
<<locked>>
97%
44802
74%
**49
99%
[Alliant Reloder-23]*
<<locked>>
97%
27746
46%
**88
92%
Baschieri & Pellagri 106
<<locked>>
84%
53388
89%
**41
100%
Baschieri & Pellagri 107
<<locked>>
93%
53911
90%
**95
99%
Bofors RP3
<<locked>>
97%
50647
84%
**59
100%
[Bofors RP7]*
<<locked>>
97%
45977
76%
**31
94%
Hodgdon BL-C2 👍
<<locked>>
91%
54157
90%
**05
100%
Hodgdon Benchmark
<<locked>>
89%
53490
89%
**97
100%
Hodgdon CFE223
<<locked>>
97%
54027
90%
**31
99%
Hodgdon H322
<<locked>>
89%
53679
89%
**33
100%
Hodgdon H335
<<locked>>
84%
53824
89%
**49
100%
Hodgdon H380
<<locked>>
97%
52446
87%
**69
98%
Hodgdon H414
<<locked>>
97%
46209
77%
**23
95%
Hodgdon H4895
<<locked>>
92%
53911
90%
**79
100%
Hodgdon Hybrid 100V
<<locked>>
97%
36129
60%
**36
97%
Hodgdon LVR
<<locked>>
97%
43207
72%
**70
96%
[Hodgdon Superperformance]*
<<locked>>
97%
42917
71%
**67
92%
Hodgdon VARGET
<<locked>>
97%
51735
86%
**26
99%
IMR 3031
<<locked>>
96%
53592
89%
**75
100%
IMR 4064
<<locked>>
97%
50618
84%
**03
99%
IMR 4166 Enduron
<<locked>>
96%
50821
84%
**77
96%
IMR 4198
<<locked>>
85%
53998
90%
**47
100%
[IMR 4350]*
<<locked>>
97%
40799
68%
**72
92%
IMR 4451 Enduron
<<locked>>
96%
48124
80%
**67
95%
[IMR 4831]*
<<locked>>
96%
32924
55%
**90
94%
IMR 4895 👍
<<locked>>
95%
54041
90%
**05
100%
IMR 8208 XBR
<<locked>>
91%
53679
89%
**39
100%
Lovex D073.4
<<locked>>
85%
53403
89%
**20
100%
Lovex D073.5
<<locked>>
86%
53185
88%
**29
100%
Lovex D073.6
<<locked>>
93%
54012
90%
**72
100%
Lovex S060
<<locked>>
92%
53969
90%
**06
100%
Lovex S062
<<locked>>
96%
53432
89%
**49
100%
Lovex S065
<<locked>>
97%
43947
73%
**18
96%
[Lovex S070]*
<<locked>>
97%
41553
69%
**98
93%
Norma 201
<<locked>>
93%
53330
89%
**36
100%
Norma 202
<<locked>>
93%
53505
89%
**46
100%
Norma 203B
<<locked>>
96%
53679
89%
**95
100%
Norma URP
<<locked>>
97%
38972
65%
**11
96%
Ramshot Big Game 👍
<<locked>>
96%
54041
90%
**18
100%
[Ramshot Hunter]*
<<locked>>
97%
38943
65%
**01
93%
Ramshot TAC
<<locked>>
90%
53853
89%
**49
98%
Ramshot Wild Boar
<<locked>>
91%
53853
89%
**82
100%
Ramshot X-Terminator
<<locked>>
88%
54128
90%
**36
99%
ReloadSwiss RS 40
<<locked>>
87%
53882
90%
**33
100%
ReloadSwiss RS 50
<<locked>>
97%
53548
89%
**52
97%
ReloadSwiss RS 52 👍
<<locked>>
94%
54099
90%
**54
99%
ReloadSwiss RS 60 👍
<<locked>>
97%
47776
79%
**05
100%
ReloadSwiss RS 62
<<locked>>
97%
38493
64%
**28
95%
[ReloadSwiss RS 70]*
<<locked>>
97%
40248
67%
**44
94%
Rottweil R 901
<<locked>>
91%
54070
90%
**20
100%
Rottweil R 902
<<locked>>
95%
53548
89%
**33
100%
Rottweil R 903
<<locked>>
97%
47166
78%
**03
99%
[Rottweil R 907]*
<<locked>>
97%
45977
76%
**31
94%
SNPE Vectan SP 11
<<locked>>
97%
49632
82%
**62
99%
SNPE Vectan SP 7
<<locked>>
91%
53127
88%
**46
98%
SNPE Vectan SP 9
<<locked>>
93%
53983
90%
**72
100%
SNPE Vectan Tubal 3000
<<locked>>
92%
53780
89%
**67
100%
SNPE Vectan Tubal 5000
<<locked>>
97%
51314
85%
**47
100%
[SNPE Vectan Tubal 7000]*
<<locked>>
97%
43845
73%
**85
94%
Shooters World Long Rifle
<<locked>>
97%
43947
73%
**18
96%
Shooters World Match Rifle
<<locked>>
93%
54012
90%
**72
100%
Shooters World Precision
<<locked>>
96%
53432
89%
**49
100%
Shooters World Tactical Rifle
<<locked>>
84%
53490
89%
**03
100%
Somchem S321
<<locked>>
88%
53519
89%
**59
100%
Somchem S335
<<locked>>
92%
53809
89%
**83
100%
Somchem S341
<<locked>>
92%
53577
89%
**52
99%
Somchem S355
<<locked>>
97%
48138
80%
**06
99%
Somchem S365
<<locked>>
97%
34896
58%
**72
98%
Vihtavuori N130
<<locked>>
88%
53867
89%
**44
100%
Vihtavuori N133
<<locked>>
94%
53780
89%
**64
100%
Vihtavuori N135
<<locked>>
97%
46688
78%
**41
100%
Vihtavuori N140
<<locked>>
95%
53606
89%
**20
100%
Vihtavuori N150
<<locked>>
97%
41075
68%
**82
99%
Vihtavuori N160
<<locked>>
97%
42801
71%
**41
97%
Vihtavuori N530
<<locked>>
88%
53316
89%
**43
100%
Vihtavuori N540
<<locked>>
95%
53127
88%
**46
100%
Vihtavuori N550
<<locked>>
97%
43076
72%
**83
97%
[Vihtavuori N555]*
<<locked>>
97%
28732
48%
**47
92%
Winchester 6.5 StaBALL
<<locked>>
97%
42235
70%
**05
98%
Winchester 748
<<locked>>
88%
53563
89%
**88
100%
Winchester 760
<<locked>>
97%
46209
77%
**23
95%
Winchester StaBALL Match
<<locked>>
87%
53882
90%
**88
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2206H
<<locked>>
81%
37710
63%
**26
97%
[ADI AR 2208]*
<<locked>>
81%
32242
54%
**01
94%
ADI AR 2219
<<locked>>
81%
49603
82%
**83
100%
Accurate 2015
<<locked>>
81%
43221
72%
**46
100%
Accurate 2200
<<locked>>
81%
40030
66%
**29
96%
Accurate 2230
<<locked>>
81%
44628
74%
**05
99%
Accurate 2460
<<locked>>
81%
44831
74%
**18
100%
Accurate 2495
<<locked>>
81%
37275
62%
**29
100%
Accurate 2520
<<locked>>
81%
38218
63%
**52
99%
[Accurate 2700]*
<<locked>>
87%
37304
62%
**47
90%
Accurate 4064
<<locked>>
81%
31502
52%
**31
99%
[Accurate 4350]*
<<locked>>
86%
26266
44%
**55
90%
Alliant AR-Comp
<<locked>>
81%
38522
64%
**39
100%
[Alliant Power Pro 2000-MR]*
<<locked>>
81%
33968
56%
**23
94%
Alliant Reloder- TS 15.5
<<locked>>
81%
30937
51%
**14
96%
Alliant Reloder-10x
<<locked>>
81%
46775
78%
**98
100%
Alliant Reloder-15
<<locked>>
81%
33533
56%
**64
95%
[Alliant Reloder-16]*
<<locked>>
85%
28195
47%
**65
90%
[Alliant Reloder-17]*
<<locked>>
81%
27108
45%
**65
92%
[Alliant Reloder-23]*
<<locked>>
94%
25672
43%
**26
90%
Baschieri & Pellagri 106
<<locked>>
81%
48530
81%
**88
100%
Baschieri & Pellagri 107
<<locked>>
81%
36405
60%
**19
95%
Bofors RP3
<<locked>>
81%
30023
50%
**11
96%
[Bofors RP7]*
<<locked>>
88%
35969
60%
**64
90%
Hodgdon BL-C2
<<locked>>
81%
38189
63%
**72
98%
Hodgdon Benchmark
<<locked>>
81%
41974
70%
**33
99%
[Hodgdon CFE223]*
<<locked>>
81%
32169
53%
**60
93%
Hodgdon H322
<<locked>>
81%
42047
70%
**78
100%
Hodgdon H335
<<locked>>
81%
48994
81%
**83
100%
[Hodgdon H380]*
<<locked>>
81%
31676
53%
**14
92%
[Hodgdon H414]*
<<locked>>
88%
34330
57%
**06
90%
Hodgdon H4895
<<locked>>
81%
38058
63%
**36
98%
[Hodgdon Hybrid 100V]*
<<locked>>
83%
23902
40%
**41
90%
[Hodgdon LVR]*
<<locked>>
84%
29211
49%
**85
90%
[Hodgdon Superperformance]*
<<locked>>
93%
38174
63%
**82
90%
[Hodgdon VARGET]*
<<locked>>
81%
32053
53%
**98
94%
IMR 3031
<<locked>>
81%
33605
56%
**80
100%
[IMR 4064]*
<<locked>>
81%
31618
53%
**82
94%
[IMR 4166 Enduron]*
<<locked>>
83%
34258
57%
**95
90%
IMR 4198
<<locked>>
81%
47964
80%
**72
100%
[IMR 4350]*
<<locked>>
93%
36477
61%
**93
90%
[IMR 4451 Enduron]*
<<locked>>
86%
34592
57%
**34
90%
[IMR 4831]*
<<locked>>
89%
26542
44%
**36
90%
IMR 4895
<<locked>>
81%
34330
57%
**90
96%
IMR 8208 XBR
<<locked>>
81%
39885
66%
**42
99%
Lovex D073.4
<<locked>>
81%
46760
78%
**31
100%
Lovex D073.5
<<locked>>
81%
44367
74%
**11
100%
Lovex D073.6
<<locked>>
81%
35650
59%
**06
99%
Lovex S060
<<locked>>
81%
38827
65%
**83
97%
Lovex S062
<<locked>>
81%
33431
56%
**37
97%
[Lovex S065]*
<<locked>>
84%
30153
50%
**55
90%
[Lovex S070]*
<<locked>>
90%
33373
55%
**44
90%
Norma 201
<<locked>>
81%
36927
61%
**87
98%
Norma 202
<<locked>>
81%
37014
61%
**06
100%
Norma 203B
<<locked>>
81%
33054
55%
**57
96%
[Norma URP]*
<<locked>>
85%
27514
46%
**62
90%
Ramshot Big Game
<<locked>>
81%
32561
54%
**64
95%
[Ramshot Hunter]*
<<locked>>
91%
32619
54%
**70
90%
Ramshot TAC
<<locked>>
81%
39668
66%
**33
95%
Ramshot Wild Boar
<<locked>>
81%
38696
64%
**52
97%
Ramshot X-Terminator
<<locked>>
81%
43337
72%
**82
98%
ReloadSwiss RS 40
<<locked>>
81%
44860
75%
**11
100%
[ReloadSwiss RS 50]*
<<locked>>
81%
32242
54%
**98
90%
ReloadSwiss RS 52
<<locked>>
81%
34505
57%
**39
95%
ReloadSwiss RS 60
<<locked>>
81%
28747
48%
**21
96%
[ReloadSwiss RS 62]*
<<locked>>
87%
28152
47%
**01
90%
[ReloadSwiss RS 70]*
<<locked>>
90%
32024
53%
**67
90%
Rottweil R 901
<<locked>>
81%
40915
68%
**33
100%
Rottweil R 902
<<locked>>
81%
35201
58%
**51
98%
Rottweil R 903
<<locked>>
81%
28427
47%
**69
95%
[Rottweil R 907]*
<<locked>>
88%
35969
60%
**64
90%
[SNPE Vectan SP 11]*
<<locked>>
81%
29907
50%
**08
94%
SNPE Vectan SP 7
<<locked>>
81%
37478
62%
**10
95%
SNPE Vectan SP 9
<<locked>>
81%
36230
60%
**96
96%
SNPE Vectan Tubal 3000
<<locked>>
81%
38769
64%
**64
100%
SNPE Vectan Tubal 5000
<<locked>>
81%
31560
52%
**49
99%
[SNPE Vectan Tubal 7000]*
<<locked>>
88%
32967
55%
**98
90%
[Shooters World Long Rifle]*
<<locked>>
84%
30153
50%
**55
90%
Shooters World Match Rifle
<<locked>>
81%
35650
59%
**06
99%
Shooters World Precision
<<locked>>
81%
33431
56%
**37
97%
Shooters World Tactical Rifle
<<locked>>
81%
47500
79%
**28
99%
Somchem S321
<<locked>>
81%
42496
71%
**01
99%
Somchem S335
<<locked>>
81%
38043
63%
**64
100%
Somchem S341
<<locked>>
81%
37101
62%
**06
97%
Somchem S355
<<locked>>
81%
29515
49%
**72
95%
[Somchem S365]*
<<locked>>
81%
21843
36%
**24
90%
Vihtavuori N130
<<locked>>
81%
43308
72%
**16
100%
Vihtavuori N133
<<locked>>
81%
36318
60%
**24
100%
Vihtavuori N135
<<locked>>
81%
28935
48%
**49
100%
Vihtavuori N140
<<locked>>
81%
34461
57%
**44
99%
[Vihtavuori N150]*
<<locked>>
81%
25382
42%
**67
94%
[Vihtavuori N160]*
<<locked>>
82%
27427
46%
**23
90%
Vihtavuori N530
<<locked>>
81%
42018
70%
**82
99%
Vihtavuori N540
<<locked>>
81%
33997
56%
**54
99%
[Vihtavuori N550]*
<<locked>>
82%
27093
45%
**55
90%
[Vihtavuori N555]*
<<locked>>
93%
25744
43%
**69
90%
[Winchester 6.5 StaBALL]*
<<locked>>
81%
25599
43%
**57
91%
Winchester 748
<<locked>>
81%
41394
69%
**18
99%
[Winchester 760]*
<<locked>>
88%
34330
57%
**06
90%
Winchester StaBALL Match
<<locked>>
81%
44034
73%
**51
99%

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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