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Load data for .357 Magnum + .356 | 123gr | LOS FP

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Recommended Powder(s): Vihtavuori 3N37, Vihtavuori N350

.357 Magnum + .356 | 123gr | LOS FP

Load Specifications

Bullet:
.356 | 123gr | LOS FP
Bullet Weight:
123gr | 8.0g
Bullet Diameter:
0.356" | 9.04mm
Bullet Length:
0.567" | 14.4mm
Caliber:
.357 Magnum
Case Length (l3):
1.290" | 32.8mm
Cartridge Length (C.O.L.):
1.566" | 39.8mm
Seated Depth:
0.291" | 7.4mm
Shank Seated Depth:
0.291" | 7.4mm
Case Capacity:
25.6 Grains of Water | 1.66 cm³
Primer Size:
Small Pistol Magnum (SPM)
Max. allowed Pressure:
43511 psi | 3000 bar
LID:
LID_B3509_C513

>> Use the Personalized Load Calculator further below to adjust input parameters. 

Load data for 116 loads in caliber .357 Magnum with .356 | 123gr | LOS FP bullet and 58 powders such as Vihtavuori 3N37, Vihtavuori N350. 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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    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.

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 AP 100
<<locked>>
95%
35607
82%
**19
98%
ADI AP 70N
<<locked>>
68%
38435
88%
**40
100%
ADI APS 350
<<locked>>
77%
38870
89%
**60
100%
ADI APS 450
<<locked>>
75%
36738
84%
**66
100%
ADI AS 30
<<locked>>
78%
38072
88%
**29
100%
ADI AS 50N
<<locked>>
74%
37652
87%
**75
100%
Accurate No. 2
<<locked>>
75%
37333
86%
**53
100%
Accurate No. 7
<<locked>>
76%
37260
86%
**91
90%
[Accurate No. 9]*
<<locked>>
85%
37681
87%
**81
84%
Accurate Solo 1000
<<locked>>
78%
38377
88%
**68
100%
Accurate Solo 1250
<<locked>>
83%
38928
89%
**30
100%
[Accurate TCM]*
<<locked>>
86%
38885
89%
**94
86%
[Alliant BLUE DOT]*
<<locked>>
97%
35462
81%
**58
88%
Alliant BULLSEYE
<<locked>>
72%
37913
87%
**93
100%
Alliant POWER PISTOL
<<locked>>
82%
38928
89%
**17
98%
Alliant UNIQUE
<<locked>>
81%
37188
85%
**90
100%
Baschieri & Pellagri 100
<<locked>>
77%
37057
85%
**55
100%
Hodgdon Clays
<<locked>>
73%
36608
84%
**43
100%
Hodgdon HS-6
<<locked>>
67%
37869
87%
**35
100%
Hodgdon Longshot
<<locked>>
63%
36709
84%
**06
100%
Hodgdon Universal
<<locked>>
75%
38435
88%
**40
100%
Hodgdon TrailBoss
<<locked>>
92%
15229
35%
**8
100%
Lovex D037.1
<<locked>>
76%
37260
86%
**91
90%
[Lovex D037.2]*
<<locked>>
85%
37681
87%
**81
84%
Lovex S011
<<locked>>
66%
37057
85%
**81
100%
Lovex S020
<<locked>>
74%
37971
87%
**57
100%
Maxam CSB 1
<<locked>>
85%
37797
87%
**11
100%
Maxam CSB 2
<<locked>>
80%
36825
85%
**01
100%
Maxam CSB 3
<<locked>>
79%
37275
86%
**88
100%
Maxam CSB 4
<<locked>>
78%
38319
88%
**71
100%
Maxam CSB 5
<<locked>>
74%
38986
90%
**32
100%
Ramshot Silhouette
<<locked>>
67%
37898
87%
**03
100%
Ramshot True Blue
<<locked>>
63%
38130
88%
**22
100%
ReloadSwiss RS 12
<<locked>>
70%
37507
86%
**98
100%
ReloadSwiss RS 14
<<locked>>
93%
14301
33%
**8
100%
ReloadSwiss RS 20
<<locked>>
83%
38116
88%
**90
100%
ReloadSwiss RS 24
<<locked>>
84%
37942
87%
**94
93%
Rottweil P 801
<<locked>>
67%
38754
89%
**75
100%
Rottweil P 806
<<locked>>
89%
38972
90%
**31
100%
SNPE Vectan A0
<<locked>>
84%
37579
86%
**50
100%
SNPE Vectan BA 9
<<locked>>
77%
37594
86%
**17
100%
SNPE Vectan BA10
<<locked>>
70%
36724
84%
**66
100%
SNPE Vectan BA7 1/2
<<locked>>
89%
37173
85%
**03
100%
SNPE Vectan BA9 1/2
<<locked>>
78%
38087
88%
**34
100%
[Shooters World Heavy Pistol]*
<<locked>>
85%
37681
87%
**81
84%
Shooters World Major Pistol
<<locked>>
76%
37260
86%
**91
90%
Somchem MP200
<<locked>>
76%
38624
89%
**99
100%
Somchem MS200
<<locked>>
78%
36637
84%
**53
100%
Somchem S221
<<locked>>
70%
37913
87%
**62
96%
Vihtavuori 3N37 👍
<<locked>>
82%
37347
86%
**22
100%
Vihtavuori 3N38
<<locked>>
94%
37434
86%
**78
94%
Vihtavuori N105
<<locked>>
96%
31125
72%
**29
95%
Vihtavuori N320
<<locked>>
73%
36825
85%
**55
100%
Vihtavuori N32C Tin Star
<<locked>>
94%
32880
76%
**30
100%
Vihtavuori N330
<<locked>>
77%
38899
89%
**44
100%
Vihtavuori N340
<<locked>>
80%
37942
87%
**67
100%
Vihtavuori N350 👍
<<locked>>
84%
36492
84%
**16
100%
Winchester 231
<<locked>>
65%
38493
88%
**21
100%

Max Load - Barrel Length: 5.50''

Powder
Charge
FR
MaxP
%
V(0)
z
[ADI AP 100]*
<<locked>>
61%
14547
33%
**56
83%
ADI AP 70N
<<locked>>
60%
30908
71%
**39
100%
ADI APS 350
<<locked>>
61%
27688
64%
**15
100%
ADI APS 450
<<locked>>
61%
26614
61%
**29
100%
ADI AS 30
<<locked>>
60%
24990
57%
**45
100%
ADI AS 50N
<<locked>>
61%
27543
63%
**30
100%
Accurate No. 2
<<locked>>
61%
24265
56%
**50
100%
[Accurate No. 7]*
<<locked>>
63%
22742
52%
**25
81%
[Accurate No. 9]*
<<locked>>
80%
31662
73%
**90
81%
Accurate Solo 1000
<<locked>>
61%
25614
59%
**88
100%
Accurate Solo 1250
<<locked>>
61%
22089
51%
**84
100%
[Accurate TCM]*
<<locked>>
77%
28601
66%
**24
80%
[Alliant BLUE DOT]*
<<locked>>
83%
24860
57%
**48
81%
Alliant BULLSEYE
<<locked>>
61%
27818
64%
**48
100%
[Alliant POWER PISTOL]*
<<locked>>
61%
20987
48%
**70
89%
Alliant UNIQUE
<<locked>>
61%
22118
51%
**43
100%
Baschieri & Pellagri 100
<<locked>>
61%
24700
57%
**78
100%
Hodgdon Clays
<<locked>>
61%
28195
65%
**32
100%
Hodgdon HS-6
<<locked>>
61%
31212
72%
**34
99%
Hodgdon Longshot
<<locked>>
61%
34389
79%
**80
100%
Hodgdon Universal
<<locked>>
61%
26469
61%
**70
100%
Hodgdon TrailBoss
<<locked>>
60%
8166
19%
**5
100%
[Lovex D037.1]*
<<locked>>
63%
22742
52%
**25
81%
[Lovex D037.2]*
<<locked>>
79%
31662
73%
**90
81%
Lovex S011
<<locked>>
61%
31720
73%
**16
100%
Lovex S020
<<locked>>
61%
25425
58%
**80
100%
Maxam CSB 1
<<locked>>
60%
20204
46%
**42
100%
Maxam CSB 2
<<locked>>
62%
22800
52%
**01
100%
Maxam CSB 3
<<locked>>
60%
23003
53%
**75
100%
Maxam CSB 4
<<locked>>
62%
25657
59%
**98
100%
Maxam CSB 5
<<locked>>
61%
27876
64%
**88
100%
Ramshot Silhouette
<<locked>>
61%
31024
71%
**01
100%
Ramshot True Blue
<<locked>>
61%
35795
82%
**86
100%
ReloadSwiss RS 12
<<locked>>
62%
29791
68%
**93
100%
ReloadSwiss RS 14
<<locked>>
61%
8035
18%
**1
99%
ReloadSwiss RS 20
<<locked>>
61%
20523
47%
**20
100%
[ReloadSwiss RS 24]*
<<locked>>
61%
18927
43%
**14
80%
Rottweil P 801
<<locked>>
61%
33533
77%
**12
100%
Rottweil P 806
<<locked>>
61%
15461
36%
**71
90%
SNPE Vectan A0
<<locked>>
61%
20929
48%
**81
100%
SNPE Vectan BA 9
<<locked>>
61%
24424
56%
**30
100%
SNPE Vectan BA10
<<locked>>
60%
28979
67%
**68
100%
SNPE Vectan BA7 1/2
<<locked>>
61%
17651
41%
**35
93%
SNPE Vectan BA9 1/2
<<locked>>
61%
24236
56%
**34
100%
[Shooters World Heavy Pistol]*
<<locked>>
79%
31662
73%
**90
81%
[Shooters World Major Pistol]*
<<locked>>
63%
22742
52%
**25
81%
Somchem MP200
<<locked>>
61%
25425
58%
**99
100%
Somchem MS200
<<locked>>
62%
23583
54%
**40
100%
Somchem S221
<<locked>>
61%
28268
65%
**11
92%
Vihtavuori 3N37
<<locked>>
60%
19711
45%
**11
96%
[Vihtavuori 3N38]*
<<locked>>
70%
18463
42%
**01
81%
[Vihtavuori N105]*
<<locked>>
72%
15606
36%
**65
81%
Vihtavuori N320
<<locked>>
61%
26136
60%
**17
100%
Vihtavuori N32C Tin Star
<<locked>>
61%
15650
36%
**1
100%
Vihtavuori N330
<<locked>>
60%
23917
55%
**37
100%
Vihtavuori N340
<<locked>>
61%
21901
50%
**14
100%
Vihtavuori N350
<<locked>>
62%
18724
43%
**84
95%
Winchester 231
<<locked>>
60%
33475
77%
**55
100%

Start Load - Barrel Length: 5.50''

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.

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