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Load data for 9.3 x 66 Sako (370 Sako Mag) + .366 | 286gr | Swift A-Frame

Recommended Powder(s): Hodgdon CFE223, IMR 4895, Ramshot Big Game, ReloadSwiss RS 52, SNPE Vectan SP 11

9.3 x 66 Sako (370 Sako Mag) + .366 | 286gr | Swift A-Frame

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.366 | 286gr | Swift A-Frame
Bullet Weight:
286gr | 18.5g
Bullet Diameter:
0.366" | 9.30mm
Bullet Length:
1.315" | 33.4mm
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:
0.615" | 15.6mm
Shank Seated Depth:
0.615" | 15.6mm
Case Capacity:
81.0 Grains of Water | 5.26 cm³
Primer Size:
Large Rifle (LR)
Max. allowed Pressure:
60191 psi | 4150 bar
LID:
LID_B10863_C1263
Last updated:
2025-02-02

Load data for 184 loads in caliber 9.3 x 66 Sako (370 Sako Mag) with .366 | 286gr | Swift A-Frame bullet and 92 powders such as Hodgdon CFE223, IMR 4895, Ramshot Big Game, 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".

  • Muzzle velocity vs. barrel length

    Every 1 inch additional barrel length increases muzzle velocity by approx. 21.3 fps

  • 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.

    .

    Loading_icon.gif

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>>
90%
53287
89%
**65
100%
ADI AR 2208
<<locked>>
95%
53359
89%
**56
99%
Accurate 2015
<<locked>>
86%
53650
89%
**74
100%
Accurate 2200
<<locked>>
88%
53606
89%
**36
99%
Accurate 2230
<<locked>>
84%
53301
89%
**23
100%
Accurate 2460
<<locked>>
84%
53592
89%
**29
100%
Accurate 2495
<<locked>>
89%
53882
90%
**43
100%
Accurate 2520
<<locked>>
88%
53287
89%
**62
100%
Accurate 2700
<<locked>>
96%
53519
89%
**93
95%
Accurate 4064
<<locked>>
95%
53592
89%
**65
100%
Accurate 4350
<<locked>>
97%
41858
70%
**70
97%
Alliant AR-Comp
<<locked>>
89%
53417
89%
**23
100%
Alliant Reloder- TS 15.5
<<locked>>
96%
54157
90%
**88
100%
Alliant Reloder-10x
<<locked>>
83%
53447
89%
**77
100%
Alliant Reloder-15
<<locked>>
93%
53592
89%
**88
99%
Alliant Reloder-16
<<locked>>
96%
42206
70%
**74
97%
Alliant Reloder-17
<<locked>>
97%
48283
80%
**98
99%
[Alliant Reloder-23]*
<<locked>>
97%
30893
51%
**67
94%
Baschieri & Pellagri 107
<<locked>>
91%
53780
89%
**92
99%
Hodgdon BL-C2
<<locked>>
89%
53954
90%
**02
100%
Hodgdon Benchmark
<<locked>>
87%
53969
90%
**03
100%
Hodgdon CFE223 👍
<<locked>>
94%
53534
89%
**28
99%
Hodgdon H322
<<locked>>
86%
53403
89%
**29
100%
Hodgdon H380
<<locked>>
95%
53301
89%
**75
98%
Hodgdon H414
<<locked>>
97%
49806
83%
**82
96%
[Hodgdon H4350]*
<<locked>>
97%
41539
69%
**82
92%
Hodgdon Hybrid 100V
<<locked>>
97%
38841
65%
**82
98%
Hodgdon LVR
<<locked>>
97%
45977
76%
**16
97%
[Hodgdon Superperformance]*
<<locked>>
97%
46369
77%
**29
94%
Hodgdon VARGET
<<locked>>
96%
54041
90%
**62
99%
IMR 3031
<<locked>>
94%
53983
90%
**75
100%
IMR 4064
<<locked>>
96%
53635
89%
**46
99%
IMR 4166 Enduron
<<locked>>
96%
53432
89%
**16
96%
IMR 4198
<<locked>>
83%
53969
90%
**44
100%
[IMR 4350]*
<<locked>>
97%
43555
72%
**21
93%
IMR 4451 Enduron
<<locked>>
97%
51605
86%
**20
96%
IMR 4831
<<locked>>
97%
36506
61%
**59
95%
IMR 4895 👍
<<locked>>
93%
53998
90%
**05
100%
IMR 8208 XBR
<<locked>>
88%
53316
89%
**36
100%
Lovex D073.5
<<locked>>
84%
54128
90%
**33
100%
Lovex D073.6
<<locked>>
90%
53287
89%
**62
100%
Lovex S060
<<locked>>
90%
53795
89%
**06
100%
Lovex S062
<<locked>>
94%
53766
89%
**52
100%
Lovex S065
<<locked>>
97%
47877
80%
**74
97%
Lovex S070
<<locked>>
97%
45179
75%
**54
95%
Norma 201
<<locked>>
90%
53577
89%
**39
100%
Norma 202
<<locked>>
91%
53461
89%
**43
100%
Norma 203B
<<locked>>
94%
53606
89%
**92
100%
Norma URP
<<locked>>
97%
42598
71%
**74
97%
Ramshot Big Game 👍
<<locked>>
94%
53664
89%
**15
100%
[Ramshot Hunter]*
<<locked>>
97%
41510
69%
**51
94%
Ramshot TAC
<<locked>>
88%
53287
89%
**46
98%
Ramshot Wild Boar
<<locked>>
89%
53983
90%
**85
100%
Ramshot X-Terminator
<<locked>>
86%
53838
89%
**29
99%
ReloadSwiss RS 40
<<locked>>
85%
53548
89%
**29
100%
ReloadSwiss RS 50
<<locked>>
95%
53940
90%
**59
97%
ReloadSwiss RS 52 👍
<<locked>>
95%
53272
88%
**18
100%
ReloadSwiss RS 60
<<locked>>
97%
47050
78%
**98
100%
ReloadSwiss RS 62
<<locked>>
97%
41989
70%
**90
96%
ReloadSwiss RS 70
<<locked>>
97%
43279
72%
**00
96%
Rottweil R 901
<<locked>>
87%
53403
89%
**06
100%
Rottweil R 902
<<locked>>
92%
53766
89%
**29
100%
Rottweil R 903
<<locked>>
97%
51692
86%
**59
100%
Rottweil R 907
<<locked>>
97%
49734
83%
**93
95%
SNPE Vectan SP 11 👍
<<locked>>
97%
52634
87%
**08
100%
SNPE Vectan SP 7
<<locked>>
89%
53505
89%
**49
98%
SNPE Vectan SP 9
<<locked>>
92%
54143
90%
**79
100%
SNPE Vectan Tubal 3000
<<locked>>
90%
54172
90%
**74
100%
SNPE Vectan Tubal 5000
<<locked>>
96%
53708
89%
**70
100%
SNPE Vectan Tubal 7000
<<locked>>
97%
47123
78%
**31
95%
Shooters World Long Rifle
<<locked>>
97%
47877
80%
**74
97%
Shooters World Match Rifle
<<locked>>
90%
53287
89%
**62
100%
Shooters World Precision
<<locked>>
94%
53766
89%
**52
100%
Somchem S321
<<locked>>
86%
53911
90%
**59
100%
Somchem S335
<<locked>>
90%
53722
89%
**80
100%
Somchem S341
<<locked>>
90%
53476
89%
**56
100%
Somchem S355
<<locked>>
97%
52475
87%
**65
100%
Somchem S365
<<locked>>
97%
37898
63%
**28
99%
Vihtavuori N130
<<locked>>
86%
53519
89%
**41
100%
Vihtavuori N133
<<locked>>
92%
53896
90%
**64
100%
Vihtavuori N135
<<locked>>
97%
49951
83%
**74
100%
Vihtavuori N140
<<locked>>
93%
54027
90%
**26
100%
Vihtavuori N150
<<locked>>
97%
44672
74%
**28
100%
Vihtavuori N160
<<locked>>
97%
46572
77%
**97
98%
Vihtavuori N530
<<locked>>
87%
54012
90%
**56
100%
Vihtavuori N540
<<locked>>
93%
53882
90%
**52
100%
Vihtavuori N550
<<locked>>
97%
46731
78%
**39
98%
[Vihtavuori N555]*
<<locked>>
97%
32430
54%
**29
94%
Winchester 6.5 StaBALL
<<locked>>
97%
45614
76%
**60
99%
Winchester 748
<<locked>>
86%
53621
89%
**88
100%
Winchester 760
<<locked>>
97%
49806
83%
**82
96%
Winchester StaBALL Match
<<locked>>
85%
53969
90%
**88
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2206H
<<locked>>
81%
40843
68%
**75
98%
ADI AR 2208
<<locked>>
81%
35201
58%
**57
95%
Accurate 2015
<<locked>>
81%
46325
77%
**85
100%
Accurate 2200
<<locked>>
81%
42975
71%
**78
97%
Accurate 2230
<<locked>>
81%
48544
81%
**60
99%
Accurate 2460
<<locked>>
81%
48878
81%
**67
100%
Accurate 2495
<<locked>>
81%
42192
70%
**92
100%
Accurate 2520
<<locked>>
81%
41959
70%
**01
100%
[Accurate 2700]*
<<locked>>
84%
36448
61%
**28
90%
Accurate 4064
<<locked>>
81%
35679
59%
**96
100%
[Accurate 4350]*
<<locked>>
82%
26063
43%
**39
90%
Alliant AR-Comp
<<locked>>
81%
42047
70%
**82
100%
Alliant Reloder- TS 15.5
<<locked>>
81%
34185
57%
**77
97%
Alliant Reloder-10x
<<locked>>
81%
50198
83%
**38
100%
Alliant Reloder-15
<<locked>>
81%
36825
61%
**23
96%
[Alliant Reloder-16]*
<<locked>>
82%
27673
46%
**46
90%
[Alliant Reloder-17]*
<<locked>>
81%
29675
49%
**34
94%
[Alliant Reloder-23]*
<<locked>>
89%
25222
42%
**06
90%
Baschieri & Pellagri 107
<<locked>>
81%
39552
66%
**75
96%
Hodgdon BL-C2
<<locked>>
81%
41307
69%
**18
99%
Hodgdon Benchmark
<<locked>>
81%
45034
75%
**78
100%
Hodgdon CFE223
<<locked>>
81%
34853
58%
**16
95%
Hodgdon H322
<<locked>>
81%
45411
75%
**21
100%
[Hodgdon H380]*
<<locked>>
81%
34896
58%
**77
94%
[Hodgdon H414]*
<<locked>>
84%
33982
56%
**93
90%
[Hodgdon H4350]*
<<locked>>
92%
36260
60%
**87
90%
[Hodgdon Hybrid 100V]*
<<locked>>
81%
24903
41%
**60
91%
[Hodgdon LVR]*
<<locked>>
81%
29124
48%
**75
90%
[Hodgdon Superperformance]*
<<locked>>
90%
37391
62%
**65
90%
Hodgdon VARGET
<<locked>>
81%
34853
58%
**51
95%
IMR 3031
<<locked>>
81%
36753
61%
**33
100%
IMR 4064
<<locked>>
81%
34548
57%
**37
96%
[IMR 4166 Enduron]*
<<locked>>
81%
34780
58%
**05
91%
IMR 4198
<<locked>>
81%
50633
84%
**05
100%
[IMR 4350]*
<<locked>>
90%
35679
59%
**73
90%
[IMR 4451 Enduron]*
<<locked>>
83%
33997
56%
**18
90%
[IMR 4831]*
<<locked>>
85%
26121
43%
**13
90%
IMR 4895
<<locked>>
81%
37739
63%
**49
97%
IMR 8208 XBR
<<locked>>
81%
42931
71%
**85
99%
Lovex D073.5
<<locked>>
81%
48385
80%
**60
100%
Lovex D073.6
<<locked>>
81%
39276
65%
**62
100%
Lovex S060
<<locked>>
81%
41510
69%
**23
98%
Lovex S062
<<locked>>
81%
36622
61%
**87
98%
[Lovex S065]*
<<locked>>
81%
30342
50%
**52
91%
[Lovex S070]*
<<locked>>
85%
32416
54%
**18
90%
Norma 201
<<locked>>
81%
40538
67%
**42
99%
Norma 202
<<locked>>
81%
40263
67%
**52
100%
Norma 203B
<<locked>>
81%
36376
60%
**16
97%
[Norma URP]*
<<locked>>
81%
26774
44%
**32
90%
Ramshot Big Game
<<locked>>
81%
35360
59%
**16
96%
[Ramshot Hunter]*
<<locked>>
87%
31966
53%
**54
90%
Ramshot TAC
<<locked>>
81%
42757
71%
**82
96%
Ramshot Wild Boar
<<locked>>
81%
41539
69%
**98
98%
Ramshot X-Terminator
<<locked>>
81%
46238
77%
**24
99%
ReloadSwiss RS 40
<<locked>>
81%
48153
80%
**54
100%
[ReloadSwiss RS 50]*
<<locked>>
81%
35288
59%
**54
92%
ReloadSwiss RS 52
<<locked>>
81%
34461
57%
**19
98%
[ReloadSwiss RS 60]*
<<locked>>
81%
29138
48%
**18
94%
[ReloadSwiss RS 62]*
<<locked>>
84%
27905
46%
**88
90%
[ReloadSwiss RS 70]*
<<locked>>
87%
31575
52%
**57
90%
Rottweil R 901
<<locked>>
81%
44599
74%
**82
100%
Rottweil R 902
<<locked>>
81%
38725
64%
**03
98%
Rottweil R 903
<<locked>>
81%
31952
53%
**34
96%
[Rottweil R 907]*
<<locked>>
85%
35447
59%
**44
90%
SNPE Vectan SP 11
<<locked>>
81%
32576
54%
**64
95%
SNPE Vectan SP 7
<<locked>>
81%
40930
68%
**62
96%
SNPE Vectan SP 9
<<locked>>
81%
39349
65%
**52
97%
SNPE Vectan Tubal 3000
<<locked>>
81%
41959
70%
**06
100%
SNPE Vectan Tubal 5000
<<locked>>
81%
34650
58%
**01
100%
[SNPE Vectan Tubal 7000]*
<<locked>>
85%
32866
55%
**88
90%
[Shooters World Long Rifle]*
<<locked>>
81%
30342
50%
**52
91%
Shooters World Match Rifle
<<locked>>
81%
39276
65%
**62
100%
Shooters World Precision
<<locked>>
81%
36622
61%
**87
98%
Somchem S321
<<locked>>
81%
46166
77%
**57
100%
Somchem S335
<<locked>>
81%
41379
69%
**10
100%
Somchem S341
<<locked>>
81%
40437
67%
**65
98%
Somchem S355
<<locked>>
81%
32982
55%
**37
96%
[Somchem S365]*
<<locked>>
81%
24062
40%
**86
92%
Vihtavuori N130
<<locked>>
81%
46267
77%
**49
100%
Vihtavuori N133
<<locked>>
81%
39175
65%
**64
100%
Vihtavuori N135
<<locked>>
81%
31952
53%
**98
100%
Vihtavuori N140
<<locked>>
81%
37710
63%
**93
100%
Vihtavuori N150
<<locked>>
81%
28036
47%
**19
96%
[Vihtavuori N160]*
<<locked>>
81%
28805
48%
**52
91%
Vihtavuori N530
<<locked>>
81%
45295
75%
**31
100%
Vihtavuori N540
<<locked>>
81%
37115
62%
**10
100%
[Vihtavuori N550]*
<<locked>>
81%
29109
48%
**95
92%
[Vihtavuori N555]*
<<locked>>
88%
25425
42%
**46
90%
[Winchester 6.5 StaBALL]*
<<locked>>
81%
28152
47%
**19
93%
Winchester 748
<<locked>>
81%
44918
75%
**70
100%
[Winchester 760]*
<<locked>>
84%
33982
56%
**93
90%
Winchester StaBALL Match
<<locked>>
81%
47674
79%
**03
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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