top of page

Load data for 9.3 x 66 Sako (370 Sako Mag) + .366 | 225gr | Brenneke TAG

Recommended Powder(s): Accurate 2460, Accurate 2520, Somchem S321, Vihtavuori N530, Winchester 748

9.3 x 66 Sako (370 Sako Mag) + .366 | 225gr | Brenneke TAG

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.366 | 225gr | Brenneke TAG
Bullet Weight:
225gr | 14.6g
Bullet Diameter:
0.366" | 9.30mm
Bullet Length:
1.296" | 32.9mm
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:
0.596" | 15.1mm
Shank Seated Depth:
0.535" | 13.6mm
Case Capacity:
81.0 Grains of Water | 5.26 cm³
Primer Size:
Large Rifle (LR)
Max. allowed Pressure:
60191 psi | 4150 bar
LID:
LID_B1187_C1263
Last updated:
2025-01-01
Recommended Twist Rate:
1:16 - 1:14

Load data for 156 loads in caliber 9.3 x 66 Sako (370 Sako Mag) with .366 | 225gr | Brenneke TAG bullet and 78 powders such as Accurate 2460, Accurate 2520, Somchem S321, Vihtavuori N530, Winchester 748. 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>>
97%
53156
88%
**74
98%
ADI AR 2207
<<locked>>
85%
53548
89%
**62
100%
ADI AR 2208
<<locked>>
97%
44585
74%
**10
95%
ADI AR 2219
<<locked>>
88%
53606
89%
**57
100%
Accurate 2015
<<locked>>
93%
53737
89%
**08
100%
Accurate 2200
<<locked>>
95%
53737
89%
**35
96%
Accurate 2230
<<locked>>
91%
53911
90%
**41
98%
Accurate 2460 👍
<<locked>>
91%
54099
90%
**57
99%
Accurate 2495
<<locked>>
97%
51967
86%
**64
100%
Accurate 2520 👍
<<locked>>
96%
53998
90%
**00
100%
Accurate 4064
<<locked>>
97%
42772
71%
**39
99%
Alliant AR-Comp
<<locked>>
97%
53896
90%
**77
100%
Alliant Reloder- TS 15.5
<<locked>>
97%
42844
71%
**30
97%
Alliant Reloder-10x
<<locked>>
90%
53490
89%
**18
100%
Alliant Reloder-15
<<locked>>
97%
46775
78%
**98
96%
[Alliant Reloder-17]*
<<locked>>
97%
38493
64%
**93
94%
Alliant Reloder-7
<<locked>>
84%
53577
89%
**56
100%
Baschieri & Pellagri 106
<<locked>>
88%
53388
89%
**59
100%
Baschieri & Pellagri 107
<<locked>>
97%
52185
87%
**71
96%
Hodgdon BL-C2
<<locked>>
96%
53563
89%
**13
99%
Hodgdon Benchmark
<<locked>>
93%
53476
89%
**05
99%
Hodgdon CFE BLK
<<locked>>
85%
53766
89%
**69
99%
Hodgdon CFE223
<<locked>>
97%
46427
77%
**08
95%
Hodgdon H322
<<locked>>
93%
53606
89%
**57
100%
Hodgdon H335
<<locked>>
88%
53925
90%
**74
100%
[Hodgdon H380]*
<<locked>>
97%
44701
74%
**46
94%
Hodgdon H4198
<<locked>>
86%
53766
89%
**62
100%
Hodgdon VARGET
<<locked>>
97%
44425
74%
**10
95%
IMR 3031
<<locked>>
97%
46456
77%
**12
100%
IMR 4064
<<locked>>
97%
43352
72%
**87
95%
IMR 4198
<<locked>>
90%
53388
89%
**69
100%
IMR 4895
<<locked>>
97%
48080
80%
**31
97%
IMR 8208 XBR
<<locked>>
95%
53592
89%
**54
99%
Lovex D073.4
<<locked>>
90%
53563
89%
**38
99%
Lovex D073.5
<<locked>>
91%
53606
89%
**51
99%
Lovex D073.6
<<locked>>
97%
50691
84%
**51
100%
Lovex S060
<<locked>>
97%
53940
90%
**08
98%
Lovex S062
<<locked>>
97%
45905
76%
**52
98%
Norma 200
<<locked>>
86%
53534
89%
**95
100%
Norma 201
<<locked>>
97%
51227
85%
**21
99%
Norma 202
<<locked>>
97%
51735
86%
**41
100%
Norma 203B
<<locked>>
97%
45934
76%
**89
96%
Ramshot Big Game
<<locked>>
97%
46427
77%
**02
96%
Ramshot TAC
<<locked>>
95%
53853
89%
**41
95%
Ramshot Wild Boar
<<locked>>
96%
53969
90%
**90
98%
Ramshot X-Terminator
<<locked>>
92%
53911
90%
**31
98%
ReloadSwiss RS 40
<<locked>>
91%
54070
90%
**54
100%
[ReloadSwiss RS 50]*
<<locked>>
97%
45614
76%
**20
92%
ReloadSwiss RS 52
<<locked>>
97%
44208
73%
**98
98%
[ReloadSwiss RS 60]*
<<locked>>
97%
37492
62%
**74
94%
Rottweil R 901
<<locked>>
95%
53824
89%
**41
100%
Rottweil R 902
<<locked>>
97%
48805
81%
**75
98%
Rottweil R 903
<<locked>>
97%
39334
65%
**74
95%
SNPE Vectan BA6 1/2
<<locked>>
85%
53664
89%
**20
100%
SNPE Vectan SP 10
<<locked>>
88%
53693
89%
**61
100%
SNPE Vectan SP 11
<<locked>>
97%
41800
69%
**23
95%
SNPE Vectan SP 7
<<locked>>
96%
53563
89%
**44
96%
SNPE Vectan SP 9
<<locked>>
97%
51184
85%
**44
97%
SNPE Vectan Tubal 3000
<<locked>>
96%
53548
89%
**75
100%
SNPE Vectan Tubal 5000
<<locked>>
97%
44686
74%
**61
100%
Shooters World Match Rifle
<<locked>>
97%
50691
84%
**51
100%
Shooters World Precision
<<locked>>
97%
45905
76%
**52
98%
Shooters World Tactical Rifle
<<locked>>
89%
54172
90%
**21
99%
Somchem S321 👍
<<locked>>
93%
53751
89%
**80
99%
Somchem S335
<<locked>>
97%
52953
88%
**89
100%
Somchem S341
<<locked>>
97%
53461
89%
**57
98%
Somchem S355
<<locked>>
97%
40524
67%
**77
96%
Vihtavuori N120
<<locked>>
87%
53330
89%
**07
100%
Vihtavuori N130
<<locked>>
93%
53751
89%
**72
100%
Vihtavuori N133
<<locked>>
97%
49951
83%
**36
100%
Vihtavuori N135
<<locked>>
97%
38783
64%
**34
100%
Vihtavuori N140
<<locked>>
97%
48356
80%
**72
100%
Vihtavuori N150
<<locked>>
97%
34287
57%
**36
95%
Vihtavuori N530 👍
<<locked>>
93%
53925
90%
**71
99%
Vihtavuori N540
<<locked>>
97%
47616
79%
**89
100%
[Winchester 6.5 StaBALL]*
<<locked>>
97%
36042
60%
**39
93%
Winchester 748 👍
<<locked>>
93%
53243
88%
**07
99%
Winchester StaBALL Match
<<locked>>
91%
54041
90%
**03
98%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
[ADI AR 2206H]*
<<locked>>
81%
32372
54%
**83
92%
ADI AR 2207
<<locked>>
81%
47558
79%
**77
100%
[ADI AR 2208]*
<<locked>>
86%
32053
53%
**54
90%
ADI AR 2219
<<locked>>
81%
42496
71%
**93
100%
Accurate 2015
<<locked>>
81%
36941
61%
**46
100%
[Accurate 2200]*
<<locked>>
81%
34606
58%
**87
90%
Accurate 2230
<<locked>>
81%
38014
63%
**75
95%
Accurate 2460
<<locked>>
81%
37768
63%
**88
97%
Accurate 2495
<<locked>>
81%
30806
51%
**97
99%
Accurate 2520
<<locked>>
81%
31792
53%
**10
96%
Accurate 4064
<<locked>>
81%
26063
43%
**75
95%
Alliant AR-Comp
<<locked>>
81%
32184
53%
**26
100%
[Alliant Reloder- TS 15.5]*
<<locked>>
82%
27021
45%
**72
90%
Alliant Reloder-10x
<<locked>>
81%
40350
67%
**18
100%
[Alliant Reloder-15]*
<<locked>>
84%
30893
51%
**70
90%
[Alliant Reloder-17]*
<<locked>>
91%
31865
53%
**29
90%
Alliant Reloder-7
<<locked>>
81%
48530
81%
**90
100%
Baschieri & Pellagri 106
<<locked>>
81%
42482
71%
**95
100%
[Baschieri & Pellagri 107]*
<<locked>>
83%
33997
56%
**29
90%
[Hodgdon BL-C2]*
<<locked>>
81%
32039
53%
**20
93%
Hodgdon Benchmark
<<locked>>
81%
36898
61%
**23
96%
Hodgdon CFE BLK
<<locked>>
81%
47442
79%
**77
98%
[Hodgdon CFE223]*
<<locked>>
88%
34606
57%
**69
90%
Hodgdon H322
<<locked>>
81%
35766
59%
**62
99%
Hodgdon H335
<<locked>>
81%
41858
70%
**84
99%
[Hodgdon H380]*
<<locked>>
90%
35621
59%
**72
90%
Hodgdon H4198
<<locked>>
81%
45774
76%
**41
100%
[Hodgdon VARGET]*
<<locked>>
86%
31763
53%
**44
90%
IMR 3031
<<locked>>
81%
28398
47%
**47
97%
[IMR 4064]*
<<locked>>
85%
30690
51%
**21
90%
IMR 4198
<<locked>>
81%
41800
69%
**02
100%
[IMR 4895]*
<<locked>>
81%
29066
48%
**38
90%
[IMR 8208 XBR]*
<<locked>>
81%
34316
57%
**10
94%
Lovex D073.4
<<locked>>
81%
39581
66%
**11
97%
Lovex D073.5
<<locked>>
81%
37579
62%
**88
97%
Lovex D073.6
<<locked>>
81%
29501
49%
**54
95%
[Lovex S060]*
<<locked>>
81%
33765
56%
**47
92%
[Lovex S062]*
<<locked>>
81%
28210
47%
**75
92%
Norma 200
<<locked>>
81%
45629
76%
**84
100%
[Norma 201]*
<<locked>>
81%
31734
53%
**51
93%
Norma 202
<<locked>>
81%
31328
52%
**67
96%
[Norma 203B]*
<<locked>>
83%
29298
49%
**34
90%
[Ramshot Big Game]*
<<locked>>
85%
31560
52%
**87
90%
[Ramshot TAC]*
<<locked>>
84%
37652
63%
**65
90%
[Ramshot Wild Boar]*
<<locked>>
81%
32967
55%
**10
92%
[Ramshot X-Terminator]*
<<locked>>
81%
37217
62%
**46
93%
ReloadSwiss RS 40
<<locked>>
81%
38682
64%
**02
97%
[ReloadSwiss RS 50]*
<<locked>>
94%
41539
69%
**51
90%
[ReloadSwiss RS 52]*
<<locked>>
81%
26614
44%
**92
91%
[ReloadSwiss RS 60]*
<<locked>>
91%
31198
52%
**06
90%
Rottweil R 901
<<locked>>
81%
35244
59%
**13
97%
[Rottweil R 902]*
<<locked>>
81%
29994
50%
**01
92%
[Rottweil R 903]*
<<locked>>
86%
27209
45%
**95
90%
SNPE Vectan BA6 1/2
<<locked>>
81%
48776
81%
**60
100%
SNPE Vectan SP 10
<<locked>>
81%
43105
72%
**00
99%
[SNPE Vectan SP 11]*
<<locked>>
87%
31314
52%
**93
90%
[SNPE Vectan SP 7]*
<<locked>>
84%
35679
59%
**39
90%
[SNPE Vectan SP 9]*
<<locked>>
81%
30864
51%
**47
91%
SNPE Vectan Tubal 3000
<<locked>>
81%
33663
56%
**38
97%
SNPE Vectan Tubal 5000
<<locked>>
81%
27122
45%
**06
96%
Shooters World Match Rifle
<<locked>>
81%
29501
49%
**54
95%
[Shooters World Precision]*
<<locked>>
81%
28210
47%
**75
92%
Shooters World Tactical Rifle
<<locked>>
81%
41220
68%
**11
96%
Somchem S321
<<locked>>
81%
36318
60%
**75
95%
Somchem S335
<<locked>>
81%
33069
55%
**47
98%
[Somchem S341]*
<<locked>>
81%
31691
53%
**57
91%
[Somchem S355]*
<<locked>>
85%
27949
46%
**95
90%
Vihtavuori N120
<<locked>>
81%
44570
74%
**92
100%
Vihtavuori N130
<<locked>>
81%
37753
63%
**26
100%
Vihtavuori N133
<<locked>>
81%
31444
52%
**11
99%
Vihtavuori N135
<<locked>>
81%
24091
40%
**87
96%
Vihtavuori N140
<<locked>>
81%
29080
48%
**95
96%
[Vihtavuori N150]*
<<locked>>
86%
24860
41%
**90
90%
Vihtavuori N530
<<locked>>
81%
35621
59%
**52
95%
Vihtavuori N540
<<locked>>
81%
28906
48%
**15
95%
[Winchester 6.5 StaBALL]*
<<locked>>
92%
31140
52%
**21
90%
Winchester 748
<<locked>>
81%
35027
58%
**82
96%
Winchester StaBALL Match
<<locked>>
81%
37405
62%
**18
95%

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