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

Recommended Powder(s): Alliant Reloder-15, IMR 4895, Norma 203B, Ramshot Big Game, ReloadSwiss RS 52

9.3 x 66 Sako (370 Sako Mag) + .366 | 286gr | Norma PlastSpitz

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.366 | 286gr | Norma PlastSpitz
Manufacturer SKU:
69303
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_B3904_C1263
Last updated:
2025-01-01

Load data for 192 loads in caliber 9.3 x 66 Sako (370 Sako Mag) with .366 | 286gr | Norma PlastSpitz bullet and 96 powders such as Alliant Reloder-15, IMR 4895, Norma 203B, Ramshot Big Game, ReloadSwiss RS 52. 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>>
91%
53359
89%
**82
100%
ADI AR 2208
<<locked>>
97%
52939
88%
**59
99%
Accurate 2015
<<locked>>
87%
53621
89%
**90
100%
Accurate 2200
<<locked>>
89%
53490
89%
**43
99%
Accurate 2230
<<locked>>
85%
53447
89%
**39
100%
Accurate 2460
<<locked>>
85%
53563
89%
**39
100%
Accurate 2495
<<locked>>
91%
53679
89%
**59
100%
Accurate 2520
<<locked>>
90%
54085
90%
**82
100%
Accurate 2700
<<locked>>
97%
52736
88%
**97
95%
Accurate 4064
<<locked>>
97%
53664
89%
**82
100%
Accurate 4350
<<locked>>
97%
39233
65%
**41
96%
Alliant AR-Comp
<<locked>>
90%
53693
89%
**39
100%
Alliant Reloder- TS 15.5
<<locked>>
97%
52330
87%
**79
100%
Alliant Reloder-10x
<<locked>>
85%
53708
89%
**97
100%
Alliant Reloder-15 👍
<<locked>>
95%
53751
89%
**02
99%
Alliant Reloder-16
<<locked>>
96%
40234
67%
**51
96%
Alliant Reloder-17
<<locked>>
97%
46137
77%
**82
99%
[Alliant Reloder-23]*
<<locked>>
97%
28689
48%
**24
93%
Baschieri & Pellagri 106
<<locked>>
83%
53795
89%
**57
100%
Baschieri & Pellagri 107
<<locked>>
92%
53447
89%
**98
99%
Hodgdon BL-C2
<<locked>>
90%
54099
90%
**15
100%
Hodgdon Benchmark
<<locked>>
88%
53679
89%
**10
100%
Hodgdon CFE223
<<locked>>
96%
53925
90%
**44
99%
Hodgdon H322
<<locked>>
88%
54027
90%
**46
100%
Hodgdon H335
<<locked>>
83%
53911
90%
**59
100%
Hodgdon H380
<<locked>>
97%
54157
90%
**02
99%
Hodgdon H414
<<locked>>
97%
47572
79%
**56
95%
[Hodgdon H4350]*
<<locked>>
97%
39421
65%
**59
92%
Hodgdon Hybrid 100V
<<locked>>
97%
36724
61%
**59
97%
Hodgdon LVR
<<locked>>
97%
43990
73%
**93
97%
[Hodgdon Superperformance]*
<<locked>>
97%
44237
73%
**06
93%
Hodgdon VARGET
<<locked>>
97%
52721
88%
**49
99%
IMR 3031
<<locked>>
95%
54172
90%
**92
100%
IMR 4064
<<locked>>
96%
51532
86%
**26
99%
IMR 4166 Enduron
<<locked>>
97%
52199
87%
**06
96%
IMR 4198
<<locked>>
85%
54128
90%
**54
100%
[IMR 4350]*
<<locked>>
97%
41321
69%
**92
92%
IMR 4451 Enduron
<<locked>>
97%
49342
82%
**97
95%
IMR 4831
<<locked>>
97%
34098
57%
**26
95%
IMR 4895 👍
<<locked>>
94%
53301
89%
**11
100%
IMR 8208 XBR
<<locked>>
90%
53795
89%
**56
100%
Lovex D073.4
<<locked>>
84%
53447
89%
**26
100%
Lovex D073.5
<<locked>>
86%
53809
89%
**46
100%
Lovex D073.6
<<locked>>
92%
54085
90%
**82
100%
Lovex S060
<<locked>>
91%
53447
89%
**13
100%
Lovex S062
<<locked>>
96%
53824
89%
**65
100%
Lovex S065
<<locked>>
97%
45397
75%
**54
96%
[Lovex S070]*
<<locked>>
97%
42772
71%
**31
94%
Norma 201
<<locked>>
92%
53359
89%
**49
100%
Norma 202
<<locked>>
92%
53592
89%
**52
100%
Norma 203B 👍
<<locked>>
96%
53563
89%
**05
100%
Norma URP
<<locked>>
97%
40292
67%
**47
96%
Ramshot Big Game 👍
<<locked>>
96%
54085
90%
**28
100%
[Ramshot Hunter]*
<<locked>>
97%
39465
66%
**28
94%
Ramshot TAC
<<locked>>
90%
53621
89%
**62
98%
Ramshot Wild Boar
<<locked>>
90%
53693
89%
**92
100%
Ramshot X-Terminator
<<locked>>
87%
54041
90%
**43
100%
ReloadSwiss RS 40
<<locked>>
86%
53925
90%
**49
100%
ReloadSwiss RS 50
<<locked>>
96%
53171
88%
**65
97%
ReloadSwiss RS 52 👍
<<locked>>
96%
53388
89%
**31
100%
ReloadSwiss RS 60
<<locked>>
97%
44773
74%
**69
100%
ReloadSwiss RS 62
<<locked>>
97%
39581
66%
**60
96%
ReloadSwiss RS 70
<<locked>>
97%
41307
69%
**77
95%
Rottweil R 901
<<locked>>
90%
53940
90%
**29
100%
Rottweil R 902
<<locked>>
94%
53722
89%
**46
100%
Rottweil R 903
<<locked>>
97%
48878
81%
**36
100%
[Rottweil R 907]*
<<locked>>
97%
47630
79%
**70
94%
SNPE Vectan SP 11
<<locked>>
97%
50183
83%
**85
99%
SNPE Vectan SP 7
<<locked>>
91%
53490
89%
**62
98%
SNPE Vectan SP 9
<<locked>>
93%
53867
89%
**82
100%
SNPE Vectan Tubal 3000
<<locked>>
91%
53795
89%
**80
100%
SNPE Vectan Tubal 5000
<<locked>>
97%
53156
88%
**77
100%
[SNPE Vectan Tubal 7000]*
<<locked>>
97%
44512
74%
**01
94%
Shooters World Long Rifle
<<locked>>
97%
45397
75%
**54
96%
Shooters World Match Rifle
<<locked>>
92%
54085
90%
**82
100%
Shooters World Precision
<<locked>>
96%
53824
89%
**65
100%
Shooters World Tactical Rifle
<<locked>>
84%
53563
89%
**13
100%
Somchem S321
<<locked>>
87%
53882
90%
**72
100%
Somchem S335
<<locked>>
92%
53853
89%
**90
100%
Somchem S341
<<locked>>
91%
53983
90%
**72
100%
Somchem S355
<<locked>>
97%
49995
83%
**43
100%
Somchem S365
<<locked>>
97%
35563
59%
**95
98%
Vihtavuori N130
<<locked>>
88%
53824
89%
**54
100%
Vihtavuori N133
<<locked>>
93%
53650
89%
**70
100%
Vihtavuori N135
<<locked>>
97%
47398
79%
**60
100%
Vihtavuori N140
<<locked>>
94%
53621
89%
**29
100%
Vihtavuori N150
<<locked>>
97%
42308
70%
**08
99%
Vihtavuori N160
<<locked>>
97%
44266
74%
**74
97%
Vihtavuori N530
<<locked>>
88%
53476
89%
**59
100%
Vihtavuori N540
<<locked>>
95%
54070
90%
**69
100%
Vihtavuori N550
<<locked>>
97%
44614
74%
**20
97%
[Vihtavuori N555]*
<<locked>>
97%
29834
50%
**87
93%
Winchester 6.5 StaBALL
<<locked>>
97%
43627
72%
**44
99%
Winchester 748
<<locked>>
88%
53795
89%
**02
100%
Winchester 760
<<locked>>
97%
47572
79%
**56
95%
Winchester StaBALL Match
<<locked>>
86%
54070
90%
**02
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2206H
<<locked>>
81%
38725
64%
**52
97%
ADI AR 2208
<<locked>>
81%
33054
55%
**31
95%
Accurate 2015
<<locked>>
81%
43947
73%
**65
100%
Accurate 2200
<<locked>>
81%
40959
68%
**56
96%
Accurate 2230
<<locked>>
81%
46079
77%
**38
99%
Accurate 2460
<<locked>>
81%
45977
76%
**44
100%
Accurate 2495
<<locked>>
81%
38638
64%
**59
100%
Accurate 2520
<<locked>>
81%
39334
65%
**82
100%
[Accurate 2700]*
<<locked>>
86%
36593
61%
**44
90%
Accurate 4064
<<locked>>
81%
32503
54%
**57
99%
[Accurate 4350]*
<<locked>>
84%
25628
43%
**46
90%
Alliant AR-Comp
<<locked>>
81%
39740
66%
**65
100%
Alliant Reloder- TS 15.5
<<locked>>
81%
31937
53%
**44
96%
Alliant Reloder-10x
<<locked>>
81%
47921
80%
**21
100%
Alliant Reloder-15
<<locked>>
81%
34490
57%
**93
96%
[Alliant Reloder-16]*
<<locked>>
84%
27572
46%
**59
90%
[Alliant Reloder-17]*
<<locked>>
81%
27702
46%
**95
93%
[Alliant Reloder-23]*
<<locked>>
92%
25034
42%
**19
90%
Baschieri & Pellagri 106
<<locked>>
81%
49922
83%
**15
100%
Baschieri & Pellagri 107
<<locked>>
81%
37594
62%
**52
96%
Hodgdon BL-C2
<<locked>>
81%
38986
65%
**95
99%
Hodgdon Benchmark
<<locked>>
81%
43004
71%
**62
99%
[Hodgdon CFE223]*
<<locked>>
81%
32750
54%
**87
94%
Hodgdon H322
<<locked>>
81%
43294
72%
**08
100%
Hodgdon H335
<<locked>>
81%
49864
83%
**06
100%
[Hodgdon H380]*
<<locked>>
81%
32532
54%
**47
93%
[Hodgdon H414]*
<<locked>>
86%
33852
56%
**10
90%
[Hodgdon H4350]*
<<locked>>
94%
36056
60%
**96
90%
[Hodgdon Hybrid 100V]*
<<locked>>
82%
23728
39%
**47
90%
[Hodgdon LVR]*
<<locked>>
83%
28529
47%
**78
90%
[Hodgdon Superperformance]*
<<locked>>
92%
37695
63%
**85
90%
Hodgdon VARGET
<<locked>>
81%
32735
54%
**24
95%
IMR 3031
<<locked>>
81%
34534
57%
**06
100%
IMR 4064
<<locked>>
81%
32401
54%
**11
95%
[IMR 4166 Enduron]*
<<locked>>
82%
33475
56%
**91
90%
IMR 4198
<<locked>>
81%
48921
81%
**95
100%
[IMR 4350]*
<<locked>>
92%
35969
60%
**93
90%
[IMR 4451 Enduron]*
<<locked>>
84%
33736
56%
**28
90%
[IMR 4831]*
<<locked>>
88%
25918
43%
**32
90%
IMR 4895
<<locked>>
81%
35331
59%
**19
97%
IMR 8208 XBR
<<locked>>
81%
40770
68%
**65
99%
Lovex D073.4
<<locked>>
81%
47674
79%
**57
100%
Lovex D073.5
<<locked>>
81%
45701
76%
**41
100%
Lovex D073.6
<<locked>>
81%
36651
61%
**33
99%
Lovex S060
<<locked>>
81%
39494
66%
**06
98%
Lovex S062
<<locked>>
81%
34127
57%
**60
98%
[Lovex S065]*
<<locked>>
83%
29414
49%
**52
90%
[Lovex S070]*
<<locked>>
88%
32445
54%
**37
90%
Norma 201
<<locked>>
81%
38000
63%
**16
98%
Norma 202
<<locked>>
81%
37956
63%
**29
100%
Norma 203B
<<locked>>
81%
34011
57%
**87
96%
[Norma URP]*
<<locked>>
84%
26818
45%
**49
90%
Ramshot Big Game
<<locked>>
81%
33373
55%
**87
95%
[Ramshot Hunter]*
<<locked>>
90%
32227
54%
**73
90%
Ramshot TAC
<<locked>>
81%
40683
68%
**62
95%
Ramshot Wild Boar
<<locked>>
81%
39494
66%
**78
98%
Ramshot X-Terminator
<<locked>>
81%
44121
73%
**08
98%
ReloadSwiss RS 40
<<locked>>
81%
45919
76%
**41
100%
[ReloadSwiss RS 50]*
<<locked>>
81%
32996
55%
**28
91%
ReloadSwiss RS 52
<<locked>>
81%
32300
54%
**93
98%
[ReloadSwiss RS 60]*
<<locked>>
81%
27064
45%
**78
93%
[ReloadSwiss RS 62]*
<<locked>>
85%
27514
46%
**95
90%
[ReloadSwiss RS 70]*
<<locked>>
89%
31531
52%
**70
90%
Rottweil R 901
<<locked>>
81%
41756
69%
**56
100%
Rottweil R 902
<<locked>>
81%
36303
60%
**80
98%
Rottweil R 903
<<locked>>
81%
29385
49%
**95
95%
[Rottweil R 907]*
<<locked>>
87%
35563
59%
**64
90%
[SNPE Vectan SP 11]*
<<locked>>
81%
30618
51%
**34
94%
SNPE Vectan SP 7
<<locked>>
81%
38609
64%
**36
95%
SNPE Vectan SP 9
<<locked>>
81%
37101
62%
**26
97%
SNPE Vectan Tubal 3000
<<locked>>
81%
39943
66%
**90
100%
SNPE Vectan Tubal 5000
<<locked>>
81%
32619
54%
**78
100%
[SNPE Vectan Tubal 7000]*
<<locked>>
87%
32126
53%
**91
90%
[Shooters World Long Rifle]*
<<locked>>
83%
29414
49%
**52
90%
Shooters World Match Rifle
<<locked>>
81%
36651
61%
**33
99%
Shooters World Precision
<<locked>>
81%
34127
57%
**60
98%
Shooters World Tactical Rifle
<<locked>>
81%
48414
80%
**51
100%
Somchem S321
<<locked>>
81%
43874
73%
**34
99%
Somchem S335
<<locked>>
81%
39102
65%
**90
100%
Somchem S341
<<locked>>
81%
38363
64%
**39
97%
Somchem S355
<<locked>>
81%
30487
51%
**05
95%
[Somchem S365]*
<<locked>>
81%
22046
37%
**41
91%
Vihtavuori N130
<<locked>>
81%
44063
73%
**33
100%
Vihtavuori N133
<<locked>>
81%
37202
62%
**51
100%
Vihtavuori N135
<<locked>>
81%
29704
49%
**69
100%
Vihtavuori N140
<<locked>>
81%
35505
59%
**70
100%
Vihtavuori N150
<<locked>>
81%
25889
43%
**83
95%
[Vihtavuori N160]*
<<locked>>
81%
26847
45%
**23
90%
Vihtavuori N530
<<locked>>
81%
43105
72%
**15
99%
Vihtavuori N540
<<locked>>
81%
34925
58%
**83
99%
[Vihtavuori N550]*
<<locked>>
81%
26992
45%
**59
90%
[Vihtavuori N555]*
<<locked>>
91%
25208
42%
**62
90%
[Winchester 6.5 StaBALL]*
<<locked>>
81%
26281
44%
**83
92%
Winchester 748
<<locked>>
81%
42685
71%
**47
100%
[Winchester 760]*
<<locked>>
86%
33852
56%
**10
90%
Winchester StaBALL Match
<<locked>>
81%
45266
75%
**77
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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