top of page

Load data for 9.3 x 66 Sako (370 Sako Mag) + .366 | 286gr | Nosler Partition SP

Recommended Powder(s): Baschieri & Pellagri 107, Hodgdon BL-C2, IMR 4895, Ramshot Big Game, ReloadSwiss RS 52

9.3 x 66 Sako (370 Sako Mag) + .366 | 286gr | Nosler Partition SP

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.366 | 286gr | Nosler Partition SP
Manufacturer SKU:
44750
Bullet Weight:
286gr | 18.5g
Bullet Diameter:
0.366" | 9.30mm
Bullet Length:
1.375" | 34.9mm
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:
0.675" | 17.1mm
Shank Seated Depth:
0.675" | 17.1mm
Case Capacity:
81.0 Grains of Water | 5.26 cm³
Primer Size:
Large Rifle (LR)
Max. allowed Pressure:
60191 psi | 4150 bar
LID:
LID_B4176_C1263
Last updated:
2025-01-01

Load data for 192 loads in caliber 9.3 x 66 Sako (370 Sako Mag) with .366 | 286gr | Nosler Partition SP bullet and 96 powders such as Baschieri & Pellagri 107, Hodgdon BL-C2, IMR 4895, 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".

  • 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.

    .

    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>>
92%
53447
89%
**69
100%
ADI AR 2208
<<locked>>
97%
52098
87%
**36
99%
ADI AR 2219
<<locked>>
83%
53156
88%
**26
100%
Accurate 2015
<<locked>>
88%
53664
89%
**80
100%
Accurate 2200
<<locked>>
90%
53403
89%
**29
99%
Accurate 2230
<<locked>>
86%
53737
89%
**29
100%
Accurate 2460
<<locked>>
86%
53606
89%
**33
100%
Accurate 2495
<<locked>>
92%
53954
90%
**52
100%
Accurate 2520
<<locked>>
91%
53940
90%
**69
100%
[Accurate 2700]*
<<locked>>
97%
50995
85%
**57
94%
Accurate 4064
<<locked>>
97%
52156
87%
**52
100%
Accurate 4350
<<locked>>
97%
38290
64%
**15
96%
Alliant AR-Comp
<<locked>>
91%
53229
88%
**29
100%
Alliant Reloder- TS 15.5
<<locked>>
97%
50792
84%
**49
100%
Alliant Reloder-10x
<<locked>>
86%
53751
89%
**87
100%
Alliant Reloder-15
<<locked>>
96%
53795
89%
**88
99%
Alliant Reloder-16
<<locked>>
97%
39581
66%
**21
96%
Alliant Reloder-17
<<locked>>
97%
44730
74%
**46
99%
[Alliant Reloder-23]*
<<locked>>
97%
27978
46%
**95
92%
Baschieri & Pellagri 106
<<locked>>
84%
53345
89%
**41
100%
Baschieri & Pellagri 107 👍
<<locked>>
93%
54027
90%
**95
99%
Hodgdon BL-C2 👍
<<locked>>
91%
54070
90%
**05
100%
Hodgdon Benchmark
<<locked>>
89%
54012
90%
**03
100%
Hodgdon CFE223
<<locked>>
97%
54157
90%
**31
99%
Hodgdon H322
<<locked>>
89%
53606
89%
**29
100%
Hodgdon H335
<<locked>>
84%
53751
89%
**49
100%
Hodgdon H380
<<locked>>
97%
52576
87%
**69
98%
Hodgdon H414
<<locked>>
97%
46151
77%
**23
95%
Hodgdon Hybrid 100V
<<locked>>
97%
36071
60%
**33
97%
Hodgdon LVR
<<locked>>
97%
43149
72%
**70
96%
[Hodgdon Superperformance]*
<<locked>>
97%
42844
71%
**64
92%
Hodgdon VARGET
<<locked>>
97%
51663
86%
**26
99%
IMR 3031
<<locked>>
96%
53519
89%
**72
100%
IMR 4064
<<locked>>
97%
50734
84%
**06
99%
IMR 4166 Enduron
<<locked>>
96%
50763
84%
**77
96%
IMR 4198
<<locked>>
85%
53940
90%
**44
100%
[IMR 4350]*
<<locked>>
97%
40393
67%
**65
92%
IMR 4451 Enduron
<<locked>>
97%
48269
80%
**70
95%
[IMR 4831]*
<<locked>>
96%
32880
55%
**90
94%
IMR 4895 👍
<<locked>>
95%
53969
90%
**05
100%
IMR 8208 XBR
<<locked>>
91%
53606
89%
**39
100%
Lovex D073.4
<<locked>>
85%
53330
89%
**20
100%
Lovex D073.5
<<locked>>
86%
53098
88%
**26
100%
Lovex D073.6
<<locked>>
93%
53940
90%
**69
100%
Lovex S060
<<locked>>
92%
53896
90%
**06
100%
Lovex S062
<<locked>>
96%
53563
89%
**52
100%
Lovex S065
<<locked>>
97%
44280
74%
**24
96%
[Lovex S070]*
<<locked>>
97%
41481
69%
**95
93%
Norma 201
<<locked>>
93%
53751
89%
**43
100%
Norma 202
<<locked>>
93%
53635
89%
**46
100%
Norma 203B
<<locked>>
96%
53592
89%
**95
100%
Norma URP
<<locked>>
97%
38899
65%
**11
96%
Ramshot Big Game 👍
<<locked>>
96%
53954
90%
**18
99%
[Ramshot Hunter]*
<<locked>>
97%
39044
65%
**05
93%
Ramshot TAC
<<locked>>
90%
53780
89%
**49
98%
Ramshot Wild Boar
<<locked>>
91%
53780
89%
**79
100%
Ramshot X-Terminator
<<locked>>
88%
54056
90%
**36
99%
ReloadSwiss RS 40
<<locked>>
87%
53809
89%
**33
100%
ReloadSwiss RS 50
<<locked>>
97%
53476
89%
**52
97%
ReloadSwiss RS 52 👍
<<locked>>
97%
53534
89%
**21
100%
ReloadSwiss RS 60
<<locked>>
97%
43613
72%
**36
99%
ReloadSwiss RS 62
<<locked>>
97%
38421
64%
**28
95%
[ReloadSwiss RS 70]*
<<locked>>
97%
40176
67%
**41
94%
Rottweil R 901
<<locked>>
91%
53998
90%
**16
100%
Rottweil R 902
<<locked>>
95%
53679
89%
**33
100%
Rottweil R 903
<<locked>>
97%
47079
78%
**06
99%
[Rottweil R 907]*
<<locked>>
97%
46499
77%
**38
94%
SNPE Vectan SP 11
<<locked>>
97%
49545
82%
**62
99%
SNPE Vectan SP 7
<<locked>>
91%
53258
88%
**49
98%
SNPE Vectan SP 9
<<locked>>
93%
53896
90%
**72
100%
SNPE Vectan Tubal 3000
<<locked>>
91%
53403
89%
**64
100%
SNPE Vectan Tubal 5000
<<locked>>
97%
51909
86%
**54
100%
[SNPE Vectan Tubal 7000]*
<<locked>>
97%
43772
73%
**82
94%
Shooters World Long Rifle
<<locked>>
97%
44280
74%
**24
96%
Shooters World Match Rifle
<<locked>>
93%
53940
90%
**69
100%
Shooters World Precision
<<locked>>
96%
53563
89%
**52
100%
Shooters World Tactical Rifle
<<locked>>
85%
54143
90%
**16
100%
Somchem S321
<<locked>>
88%
54143
90%
**69
100%
Somchem S335
<<locked>>
92%
53272
89%
**74
100%
Somchem S341
<<locked>>
92%
53490
89%
**56
99%
Somchem S355
<<locked>>
97%
48704
81%
**13
99%
Somchem S365
<<locked>>
97%
34664
58%
**65
98%
Vihtavuori N130
<<locked>>
88%
53983
90%
**44
100%
Vihtavuori N133
<<locked>>
94%
53722
89%
**60
100%
Vihtavuori N135
<<locked>>
97%
46804
78%
**41
100%
Vihtavuori N140
<<locked>>
95%
53534
89%
**20
100%
Vihtavuori N150
<<locked>>
97%
41017
68%
**78
99%
Vihtavuori N160
<<locked>>
97%
43685
73%
**51
97%
Vihtavuori N530
<<locked>>
88%
53243
88%
**46
100%
Vihtavuori N540
<<locked>>
95%
53708
89%
**56
100%
Vihtavuori N550
<<locked>>
97%
43004
71%
**83
97%
[Vihtavuori N555]*
<<locked>>
97%
28674
48%
**47
92%
Winchester 6.5 StaBALL
<<locked>>
97%
42163
70%
**05
98%
Winchester 748
<<locked>>
88%
53490
89%
**88
100%
Winchester 760
<<locked>>
97%
46151
77%
**23
95%
Winchester StaBALL Match
<<locked>>
87%
54012
90%
**88
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2206H
<<locked>>
81%
37797
63%
**26
97%
[ADI AR 2208]*
<<locked>>
81%
32198
53%
**01
94%
ADI AR 2219
<<locked>>
81%
49705
83%
**83
100%
Accurate 2015
<<locked>>
81%
43163
72%
**46
100%
Accurate 2200
<<locked>>
81%
39972
66%
**29
96%
Accurate 2230
<<locked>>
81%
44556
74%
**05
99%
Accurate 2460
<<locked>>
81%
44759
74%
**15
100%
Accurate 2495
<<locked>>
81%
37550
62%
**33
100%
Accurate 2520
<<locked>>
81%
38159
63%
**49
99%
[Accurate 2700]*
<<locked>>
87%
37260
62%
**47
90%
Accurate 4064
<<locked>>
81%
31575
52%
**37
99%
[Accurate 4350]*
<<locked>>
86%
26339
44%
**59
90%
Alliant AR-Comp
<<locked>>
81%
38479
64%
**39
100%
Alliant Reloder- TS 15.5
<<locked>>
81%
30893
51%
**14
96%
Alliant Reloder-10x
<<locked>>
81%
46717
78%
**98
100%
Alliant Reloder-15
<<locked>>
81%
33620
56%
**64
95%
[Alliant Reloder-16]*
<<locked>>
85%
28152
47%
**62
90%
[Alliant Reloder-17]*
<<locked>>
81%
27079
45%
**65
92%
[Alliant Reloder-23]*
<<locked>>
94%
25483
42%
**19
90%
Baschieri & Pellagri 106
<<locked>>
81%
48631
81%
**88
100%
Baschieri & Pellagri 107
<<locked>>
81%
36506
61%
**19
95%
Hodgdon BL-C2
<<locked>>
81%
38130
63%
**69
98%
Hodgdon Benchmark
<<locked>>
81%
42148
70%
**39
99%
[Hodgdon CFE223]*
<<locked>>
81%
32126
53%
**60
93%
Hodgdon H322
<<locked>>
81%
42003
70%
**78
100%
Hodgdon H335
<<locked>>
81%
48921
81%
**83
100%
[Hodgdon H380]*
<<locked>>
81%
31633
53%
**14
92%
[Hodgdon H414]*
<<locked>>
88%
34287
57%
**06
90%
[Hodgdon Hybrid 100V]*
<<locked>>
83%
23873
40%
**41
90%
[Hodgdon LVR]*
<<locked>>
84%
29167
48%
**85
90%
[Hodgdon Superperformance]*
<<locked>>
93%
38101
63%
**78
90%
[Hodgdon VARGET]*
<<locked>>
81%
32010
53%
**98
94%
IMR 3031
<<locked>>
81%
33562
56%
**80
100%
[IMR 4064]*
<<locked>>
81%
31575
52%
**82
94%
[IMR 4166 Enduron]*
<<locked>>
83%
34214
57%
**95
90%
IMR 4198
<<locked>>
81%
47906
80%
**72
100%
[IMR 4350]*
<<locked>>
93%
36593
61%
**96
90%
[IMR 4451 Enduron]*
<<locked>>
85%
34360
57%
**31
90%
[IMR 4831]*
<<locked>>
89%
26614
44%
**39
90%
IMR 4895
<<locked>>
81%
34418
57%
**93
96%
IMR 8208 XBR
<<locked>>
81%
39827
66%
**39
99%
Lovex D073.4
<<locked>>
81%
46688
78%
**31
100%
Lovex D073.5
<<locked>>
81%
44309
74%
**08
100%
Lovex D073.6
<<locked>>
81%
35592
59%
**06
99%
Lovex S060
<<locked>>
81%
38783
64%
**83
97%
Lovex S062
<<locked>>
81%
33388
55%
**37
97%
[Lovex S065]*
<<locked>>
84%
29776
49%
**52
90%
[Lovex S070]*
<<locked>>
90%
33315
55%
**44
90%
Norma 201
<<locked>>
81%
37275
62%
**93
98%
Norma 202
<<locked>>
81%
37101
62%
**06
100%
Norma 203B
<<locked>>
81%
33011
55%
**57
95%
[Norma URP]*
<<locked>>
85%
27470
46%
**59
90%
Ramshot Big Game
<<locked>>
81%
32648
54%
**64
95%
[Ramshot Hunter]*
<<locked>>
91%
32561
54%
**73
90%
Ramshot TAC
<<locked>>
81%
39624
66%
**33
95%
Ramshot Wild Boar
<<locked>>
81%
38638
64%
**52
97%
Ramshot X-Terminator
<<locked>>
81%
43279
72%
**82
98%
ReloadSwiss RS 40
<<locked>>
81%
44802
74%
**11
100%
[ReloadSwiss RS 50]*
<<locked>>
81%
32198
53%
**01
90%
ReloadSwiss RS 52
<<locked>>
81%
31430
52%
**60
97%
[ReloadSwiss RS 60]*
<<locked>>
81%
26353
44%
**46
92%
[ReloadSwiss RS 62]*
<<locked>>
87%
28094
47%
**98
90%
[ReloadSwiss RS 70]*
<<locked>>
90%
31966
53%
**67
90%
Rottweil R 901
<<locked>>
81%
40872
68%
**36
100%
Rottweil R 902
<<locked>>
81%
35143
58%
**51
98%
Rottweil R 903
<<locked>>
81%
28384
47%
**69
95%
[Rottweil R 907]*
<<locked>>
89%
36114
60%
**64
90%
[SNPE Vectan SP 11]*
<<locked>>
81%
29994
50%
**08
94%
SNPE Vectan SP 7
<<locked>>
81%
37420
62%
**06
95%
SNPE Vectan SP 9
<<locked>>
81%
36172
60%
**96
96%
SNPE Vectan Tubal 3000
<<locked>>
81%
38957
65%
**64
100%
SNPE Vectan Tubal 5000
<<locked>>
81%
31981
53%
**55
99%
[SNPE Vectan Tubal 7000]*
<<locked>>
88%
33054
55%
**98
90%
[Shooters World Long Rifle]*
<<locked>>
84%
29776
49%
**52
90%
Shooters World Match Rifle
<<locked>>
81%
35592
59%
**06
99%
Shooters World Precision
<<locked>>
81%
33388
55%
**37
97%
Shooters World Tactical Rifle
<<locked>>
81%
47442
79%
**24
99%
Somchem S321
<<locked>>
81%
42438
71%
**01
99%
Somchem S335
<<locked>>
81%
38508
64%
**70
100%
Somchem S341
<<locked>>
81%
37043
62%
**10
97%
Somchem S355
<<locked>>
81%
29820
50%
**78
95%
[Somchem S365]*
<<locked>>
82%
22075
37%
**31
90%
Vihtavuori N130
<<locked>>
81%
43265
72%
**16
100%
Vihtavuori N133
<<locked>>
81%
36405
60%
**24
100%
Vihtavuori N135
<<locked>>
81%
28892
48%
**46
100%
Vihtavuori N140
<<locked>>
81%
34418
57%
**44
99%
[Vihtavuori N150]*
<<locked>>
81%
25338
42%
**64
94%
[Vihtavuori N160]*
<<locked>>
82%
27383
45%
**26
90%
Vihtavuori N530
<<locked>>
81%
41959
70%
**82
99%
Vihtavuori N540
<<locked>>
81%
34301
57%
**64
99%
[Vihtavuori N550]*
<<locked>>
82%
27064
45%
**52
90%
[Vihtavuori N555]*
<<locked>>
93%
25701
43%
**65
90%
[Winchester 6.5 StaBALL]*
<<locked>>
81%
25556
42%
**54
91%
Winchester 748
<<locked>>
81%
41495
69%
**18
99%
[Winchester 760]*
<<locked>>
88%
34287
57%
**06
90%
Winchester StaBALL Match
<<locked>>
81%
43961
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

bottom of page