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Load data for 9.3 x 66 Sako (370 Sako Mag) + .366 | 320gr | Woodleigh RN SN

Recommended Powder(s): Alliant Power Pro 2000-MR, Alliant Reloder-17, Hodgdon CFE223, ReloadSwiss RS 52, SNPE Vectan SP 11

9.3 x 66 Sako (370 Sako Mag) + .366 | 320gr | Woodleigh RN SN

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.366 | 320gr | Woodleigh RN SN
Manufacturer SKU:
49
Bullet Weight:
320gr | 20.7g
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_B12156_C1263
Last updated:
2026-01-30

Load data for 200 loads in caliber 9.3 x 66 Sako (370 Sako Mag) with .366 | 320gr | Woodleigh RN SN bullet and 100 powders such as Alliant Power Pro 2000-MR, Alliant Reloder-17, Hodgdon CFE223, ReloadSwiss RS 52, SNPE Vectan SP 11. 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>>
89%
53940
90%
**51
100%
ADI AR 2208
<<locked>>
94%
53388
89%
**34
100%
[ADI AR 2209]*
<<locked>>
97%
39392
65%
**83
92%
Accurate 2015
<<locked>>
85%
53693
89%
**52
100%
Accurate 2200
<<locked>>
87%
53563
89%
**15
99%
Accurate 2495
<<locked>>
88%
53780
89%
**15
100%
Accurate 2520
<<locked>>
87%
53432
89%
**34
100%
Accurate 2700
<<locked>>
95%
53809
89%
**92
97%
[Accurate 3100]*
<<locked>>
97%
31227
52%
**65
93%
Accurate 4064
<<locked>>
94%
53838
89%
**41
100%
Accurate 4350
<<locked>>
97%
44324
74%
**95
99%
Alliant AR-Comp
<<locked>>
87%
53737
89%
**95
100%
Alliant Power Pro 2000-MR 👍
<<locked>>
91%
53679
89%
**59
100%
Alliant Reloder- TS 15.5
<<locked>>
94%
53287
89%
**60
100%
Alliant Reloder-15
<<locked>>
92%
53563
89%
**67
100%
Alliant Reloder-16
<<locked>>
97%
44063
73%
**01
99%
Alliant Reloder-17 👍
<<locked>>
97%
51140
85%
**26
100%
[Alliant Reloder-19]*
<<locked>>
97%
38624
64%
**83
92%
Alliant Reloder-23
<<locked>>
97%
31705
53%
**98
97%
Alliant Reloder-26
<<locked>>
97%
34214
57%
**00
95%
Baschieri & Pellagri 107
<<locked>>
89%
53577
89%
**67
100%
Bofors RP3
<<locked>>
94%
53722
89%
**74
100%
Bofors RP7
<<locked>>
97%
52199
87%
**18
97%
Hodgdon BL-C2
<<locked>>
87%
53229
88%
**67
100%
Hodgdon Benchmark
<<locked>>
86%
53447
89%
**75
100%
Hodgdon CFE223 👍
<<locked>>
93%
53954
90%
**16
100%
Hodgdon H322
<<locked>>
85%
53272
89%
**98
100%
Hodgdon H380
<<locked>>
93%
53185
88%
**57
99%
Hodgdon H414
<<locked>>
97%
52692
88%
**06
98%
Hodgdon H4350
<<locked>>
97%
43308
72%
**16
95%
Hodgdon H4895
<<locked>>
88%
53664
89%
**51
100%
Hodgdon Hybrid 100V
<<locked>>
97%
40698
68%
**10
99%
Hodgdon LVR
<<locked>>
97%
48747
81%
**41
99%
Hodgdon Superperformance
<<locked>>
97%
48965
81%
**70
96%
Hodgdon VARGET
<<locked>>
95%
53824
89%
**38
100%
IMR 3031
<<locked>>
92%
53795
89%
**41
100%
IMR 4064
<<locked>>
95%
53606
89%
**28
100%
IMR 4166 Enduron
<<locked>>
95%
54012
90%
**11
98%
IMR 4350
<<locked>>
97%
45411
75%
**46
96%
IMR 4451 Enduron
<<locked>>
97%
53853
89%
**38
98%
IMR 4831
<<locked>>
97%
38174
63%
**83
97%
IMR 4895
<<locked>>
91%
54012
90%
**83
100%
IMR 8208 XBR
<<locked>>
87%
53925
90%
**21
100%
Lovex D073.6
<<locked>>
89%
53432
89%
**34
100%
Lovex S060
<<locked>>
89%
54128
90%
**92
100%
Lovex S062
<<locked>>
93%
53722
89%
**28
100%
Lovex S065
<<locked>>
97%
49937
83%
**98
98%
Lovex S070
<<locked>>
97%
47065
78%
**75
97%
Norma 201
<<locked>>
89%
53911
90%
**18
100%
Norma 202
<<locked>>
89%
53432
89%
**15
100%
Norma 203B
<<locked>>
92%
53606
89%
**67
100%
[Norma 204]*
<<locked>>
97%
45353
75%
**72
94%
[Norma MRP]*
<<locked>>
97%
34824
58%
**73
92%
Norma URP
<<locked>>
97%
44425
74%
**95
99%
Ramshot Big Game
<<locked>>
93%
54099
90%
**93
100%
Ramshot Hunter
<<locked>>
97%
43642
73%
**85
97%
Ramshot TAC
<<locked>>
87%
54128
90%
**41
99%
Ramshot Wild Boar
<<locked>>
87%
53606
89%
**54
100%
Ramshot X-Terminator
<<locked>>
84%
53534
89%
**08
100%
ReloadSwiss RS 40
<<locked>>
84%
54070
90%
**15
100%
ReloadSwiss RS 50
<<locked>>
93%
54070
90%
**47
98%
ReloadSwiss RS 52 👍
<<locked>>
90%
53722
89%
**23
100%
ReloadSwiss RS 60
<<locked>>
96%
53592
89%
**56
100%
ReloadSwiss RS 62
<<locked>>
97%
44411
74%
**21
98%
ReloadSwiss RS 70
<<locked>>
97%
44657
74%
**24
98%
Rottweil R 901
<<locked>>
86%
53417
89%
**85
100%
Rottweil R 902
<<locked>>
91%
54114
90%
**15
100%
Rottweil R 903
<<locked>>
97%
53925
90%
**70
100%
[Rottweil R 905]*
<<locked>>
97%
37086
62%
**64
91%
Rottweil R 907
<<locked>>
97%
52199
87%
**18
97%
SNPE Vectan SP 11 👍
<<locked>>
96%
54085
90%
**00
100%
SNPE Vectan SP 7
<<locked>>
88%
53490
89%
**34
99%
SNPE Vectan SP 9
<<locked>>
90%
53490
89%
**44
100%
SNPE Vectan Tubal 3000
<<locked>>
88%
53867
89%
**46
100%
SNPE Vectan Tubal 5000
<<locked>>
94%
53345
89%
**46
100%
SNPE Vectan Tubal 7000
<<locked>>
97%
49458
82%
**52
97%
Shooters World Long Rifle
<<locked>>
97%
49937
83%
**98
98%
Shooters World Match Rifle
<<locked>>
89%
53432
89%
**34
100%
Shooters World Precision
<<locked>>
93%
53722
89%
**28
100%
Somchem S321
<<locked>>
84%
53679
89%
**34
100%
Somchem S335
<<locked>>
89%
54070
90%
**59
100%
Somchem S341
<<locked>>
88%
53780
89%
**38
100%
Somchem S355
<<locked>>
96%
53316
89%
**54
100%
Somchem S365
<<locked>>
97%
39668
66%
**56
100%
[Somchem S385]*
<<locked>>
97%
37217
62%
**57
93%
Vihtavuori N130
<<locked>>
85%
53925
90%
**19
100%
Vihtavuori N133
<<locked>>
91%
53650
89%
**33
100%
Vihtavuori N135
<<locked>>
97%
52388
87%
**78
100%
Vihtavuori N140
<<locked>>
92%
54143
90%
**01
100%
Vihtavuori N150
<<locked>>
97%
46833
78%
**46
100%
Vihtavuori N160
<<locked>>
97%
49211
82%
**21
99%
Vihtavuori N530
<<locked>>
85%
53592
89%
**24
100%
Vihtavuori N540
<<locked>>
92%
53809
89%
**28
100%
Vihtavuori N550
<<locked>>
97%
49574
82%
**64
99%
Vihtavuori N555
<<locked>>
97%
33562
56%
**60
97%
Winchester 6.5 StaBALL
<<locked>>
97%
47036
78%
**78
100%
Winchester 748
<<locked>>
85%
53838
89%
**64
100%
Winchester 760
<<locked>>
97%
52692
88%
**06
98%
Winchester StaBALL HD
<<locked>>
97%
27775
46%
**62
95%
Winchester StaBALL Match
<<locked>>
83%
54128
90%
**64
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2206H
<<locked>>
81%
42337
70%
**93
99%
ADI AR 2208
<<locked>>
81%
36085
60%
**75
97%
[ADI AR 2209]*
<<locked>>
94%
36318
60%
**24
90%
Accurate 2015
<<locked>>
81%
47921
80%
**83
100%
Accurate 2200
<<locked>>
81%
44570
74%
**93
98%
Accurate 2495
<<locked>>
81%
43062
72%
**87
100%
Accurate 2520
<<locked>>
81%
43526
72%
**16
100%
[Accurate 2700]*
<<locked>>
81%
34214
57%
**96
91%
[Accurate 3100]*
<<locked>>
91%
26397
44%
**57
90%
Accurate 4064
<<locked>>
81%
36245
60%
**01
100%
[Accurate 4350]*
<<locked>>
81%
26020
43%
**54
93%
Alliant AR-Comp
<<locked>>
81%
44193
73%
**87
100%
Alliant Power Pro 2000-MR
<<locked>>
81%
38145
63%
**13
98%
Alliant Reloder- TS 15.5
<<locked>>
81%
35360
59%
**91
99%
Alliant Reloder-15
<<locked>>
81%
37985
63%
**41
98%
[Alliant Reloder-16]*
<<locked>>
81%
27789
46%
**70
93%
Alliant Reloder-17
<<locked>>
81%
30429
51%
**69
97%
[Alliant Reloder-19]*
<<locked>>
94%
35679
59%
**21
90%
[Alliant Reloder-23]*
<<locked>>
85%
22263
37%
**49
90%
[Alliant Reloder-26]*
<<locked>>
90%
27021
45%
**19
90%
Baschieri & Pellagri 107
<<locked>>
81%
41365
69%
**00
98%
Bofors RP3
<<locked>>
81%
34534
57%
**95
99%
[Bofors RP7]*
<<locked>>
81%
32053
53%
**86
91%
Hodgdon BL-C2
<<locked>>
81%
43192
72%
**33
100%
Hodgdon Benchmark
<<locked>>
81%
46499
77%
**87
100%
Hodgdon CFE223
<<locked>>
81%
36085
60%
**47
97%
Hodgdon H322
<<locked>>
81%
47326
79%
**26
100%
Hodgdon H380
<<locked>>
81%
35926
60%
**98
96%
[Hodgdon H414]*
<<locked>>
81%
31357
52%
**49
91%
[Hodgdon H4350]*
<<locked>>
86%
31459
52%
**96
90%
Hodgdon H4895
<<locked>>
81%
42670
71%
**03
99%
[Hodgdon Hybrid 100V]*
<<locked>>
81%
25309
42%
**98
94%
[Hodgdon LVR]*
<<locked>>
81%
29834
50%
**09
93%
[Hodgdon Superperformance]*
<<locked>>
85%
32750
54%
**85
90%
Hodgdon VARGET
<<locked>>
81%
35752
59%
**69
97%
IMR 3031
<<locked>>
81%
38754
64%
**44
100%
IMR 4064
<<locked>>
81%
35433
59%
**55
97%
[IMR 4166 Enduron]*
<<locked>>
81%
35708
59%
**29
93%
[IMR 4350]*
<<locked>>
84%
31140
52%
**90
90%
[IMR 4451 Enduron]*
<<locked>>
81%
33431
56%
**16
92%
[IMR 4831]*
<<locked>>
81%
23743
39%
**72
91%
IMR 4895
<<locked>>
81%
38957
65%
**67
99%
IMR 8208 XBR
<<locked>>
81%
44440
74%
**96
100%
Lovex D073.6
<<locked>>
81%
40727
68%
**73
100%
Lovex S060
<<locked>>
81%
42699
71%
**44
99%
Lovex S062
<<locked>>
81%
37478
62%
**05
99%
[Lovex S065]*
<<locked>>
81%
30806
51%
**77
93%
[Lovex S070]*
<<locked>>
81%
28906
48%
**50
90%
Norma 201
<<locked>>
81%
41553
69%
**57
100%
Norma 202
<<locked>>
81%
41655
69%
**60
100%
Norma 203B
<<locked>>
81%
37507
62%
**34
98%
[Norma 204]*
<<locked>>
89%
35578
59%
**05
90%
[Norma MRP]*
<<locked>>
94%
32097
53%
**14
90%
[Norma URP]*
<<locked>>
81%
27050
45%
**60
93%
Ramshot Big Game
<<locked>>
81%
36782
61%
**44
98%
[Ramshot Hunter]*
<<locked>>
82%
28079
47%
**80
90%
Ramshot TAC
<<locked>>
81%
44179
73%
**03
97%
Ramshot Wild Boar
<<locked>>
81%
43424
72%
**19
99%
Ramshot X-Terminator
<<locked>>
81%
47979
80%
**39
100%
ReloadSwiss RS 40
<<locked>>
81%
49980
83%
**62
100%
[ReloadSwiss RS 50]*
<<locked>>
81%
36230
60%
**82
94%
ReloadSwiss RS 52
<<locked>>
81%
39363
65%
**23
98%
ReloadSwiss RS 60
<<locked>>
81%
32387
54%
**21
99%
[ReloadSwiss RS 62]*
<<locked>>
81%
26353
44%
**64
92%
[ReloadSwiss RS 70]*
<<locked>>
81%
27369
45%
**73
90%
Rottweil R 901
<<locked>>
81%
45411
75%
**83
100%
Rottweil R 902
<<locked>>
81%
39682
66%
**21
99%
Rottweil R 903
<<locked>>
81%
32532
54%
**49
98%
[Rottweil R 905]*
<<locked>>
94%
34142
57%
**05
90%
[Rottweil R 907]*
<<locked>>
81%
32053
53%
**86
91%
SNPE Vectan SP 11
<<locked>>
81%
33692
56%
**91
97%
SNPE Vectan SP 7
<<locked>>
81%
42351
70%
**83
98%
SNPE Vectan SP 9
<<locked>>
81%
40698
68%
**70
99%
SNPE Vectan Tubal 3000
<<locked>>
81%
43352
72%
**21
100%
SNPE Vectan Tubal 5000
<<locked>>
81%
35650
59%
**16
100%
[SNPE Vectan Tubal 7000]*
<<locked>>
81%
29631
49%
**34
91%
[Shooters World Long Rifle]*
<<locked>>
81%
30806
51%
**77
93%
Shooters World Match Rifle
<<locked>>
81%
40727
68%
**73
100%
Shooters World Precision
<<locked>>
81%
37478
62%
**05
99%
Somchem S321
<<locked>>
81%
47950
80%
**62
100%
Somchem S335
<<locked>>
81%
42525
71%
**18
100%
Somchem S341
<<locked>>
81%
42250
70%
**83
99%
Somchem S355
<<locked>>
81%
33678
56%
**55
98%
Somchem S365
<<locked>>
81%
24279
40%
**21
95%
[Somchem S385]*
<<locked>>
91%
31053
52%
**36
90%
Vihtavuori N130
<<locked>>
81%
48254
80%
**57
100%
Vihtavuori N133
<<locked>>
81%
40596
67%
**75
100%
Vihtavuori N135
<<locked>>
81%
32909
55%
**13
100%
Vihtavuori N140
<<locked>>
81%
39001
65%
**05
100%
Vihtavuori N150
<<locked>>
81%
28616
48%
**44
98%
[Vihtavuori N160]*
<<locked>>
81%
29428
49%
**86
94%
Vihtavuori N530
<<locked>>
81%
47079
78%
**42
100%
Vihtavuori N540
<<locked>>
81%
38392
64%
**21
100%
[Vihtavuori N550]*
<<locked>>
81%
29849
50%
**26
94%
[Vihtavuori N555]*
<<locked>>
84%
22495
37%
**81
90%
Winchester 6.5 StaBALL
<<locked>>
81%
28689
48%
**50
96%
Winchester 748
<<locked>>
81%
47224
78%
**82
100%
[Winchester 760]*
<<locked>>
81%
31357
52%
**49
91%
[Winchester StaBALL HD]*
<<locked>>
91%
23438
39%
**21
90%
Winchester StaBALL Match
<<locked>>
81%
49966
83%
**15
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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