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Load data for .357 Auto Magnum + .357 | 158gr | LOS HP

Recommended Powder(s): ADI AP 100

.357 Auto Magnum + .357 | 158gr | LOS HP

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.357 | 158gr | LOS HP
Bullet Weight:
158gr | 10.2g
Bullet Diameter:
0.357" | 9.07mm
Bullet Length:
0.661" | 16.8mm
Caliber:
.357 Auto Magnum load data
Case Length (l3):
1.299" | 33.0mm
Cartridge Length (C.O.L.):
1.576" | 40.0mm
Seated Depth:
0.384" | 9.8mm
Shank Seated Depth:
0.384" | 9.8mm
Case Capacity:
35.0 Grains of Water | 2.27 cm³
Primer Size:
Small Pistol Magnum (SPM)
Max. allowed Pressure:
36985 psi | 2550 bar
LID:
LID_B3516_C511
Last updated:
2025-01-01

Load data for 66 loads in caliber .357 Auto Magnum with .357 | 158gr | LOS HP bullet and 33 powders such as ADI AP 100. 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 AP 100 👍
<<locked>>
77%
31821
86%
**81
100%
ADI APS 450
<<locked>>
63%
33054
89%
**48
100%
[Accurate 4100]*
<<locked>>
80%
32851
89%
**53
84%
Accurate No. 9
<<locked>>
67%
32039
87%
**40
90%
Accurate Solo 1250
<<locked>>
65%
33199
90%
**63
100%
Accurate TCM
<<locked>>
67%
32169
87%
**34
91%
[Alliant 2400]*
<<locked>>
76%
32242
87%
**57
87%
Alliant BLUE DOT
<<locked>>
79%
33185
90%
**44
94%
Alliant POWER PISTOL
<<locked>>
63%
31836
86%
**14
100%
Alliant UNIQUE
<<locked>>
63%
31807
86%
**12
100%
[Hodgdon LilGun]*
<<locked>>
88%
32590
88%
**35
88%
Hodgdon TrailBoss
<<locked>>
96%
21408
58%
**07
100%
Lovex D037.2
<<locked>>
67%
32895
89%
**44
90%
Maxam CSB 1
<<locked>>
66%
31531
85%
**40
100%
Maxam CSB 2
<<locked>>
63%
32808
89%
**47
100%
Maxam CSB 3
<<locked>>
63%
32547
88%
**24
100%
[Ramshot Enforcer]*
<<locked>>
78%
33257
90%
**86
89%
ReloadSwiss RS 14
<<locked>>
96%
20378
55%
**20
100%
ReloadSwiss RS 20
<<locked>>
65%
33112
90%
**16
100%
ReloadSwiss RS 24
<<locked>>
66%
32822
89%
**37
97%
Rottweil P 806
<<locked>>
67%
32227
87%
**21
100%
SNPE Vectan A0
<<locked>>
67%
32779
89%
**89
100%
[SNPE Vectan BA6 1/2]*
<<locked>>
97%
26368
71%
**45
87%
SNPE Vectan BA7 1/2
<<locked>>
70%
32256
87%
**42
100%
Shooters World Heavy Pistol
<<locked>>
67%
32895
89%
**44
90%
Somchem MS200
<<locked>>
63%
32590
88%
**93
100%
Vihtavuori 3N37
<<locked>>
64%
32169
87%
**55
100%
Vihtavuori 3N38
<<locked>>
74%
32097
87%
**07
97%
Vihtavuori N105
<<locked>>
79%
32518
88%
**57
100%
[Vihtavuori N110]*
<<locked>>
97%
33011
89%
**96
88%
Vihtavuori N32C Tin Star
<<locked>>
80%
31720
86%
**32
100%
Vihtavuori N340
<<locked>>
63%
32242
87%
**89
100%
Vihtavuori N350
<<locked>>
66%
31691
86%
**42
100%

Max Load - Barrel Length: 5.50''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AP 100
<<locked>>
61%
20798
56%
**68
96%
ADI APS 450
<<locked>>
61%
31212
84%
**22
100%
[Accurate 4100]*
<<locked>>
75%
27528
74%
**62
80%
[Accurate No. 9]*
<<locked>>
61%
25686
69%
**12
86%
Accurate Solo 1250
<<locked>>
61%
29283
79%
**11
100%
[Accurate TCM]*
<<locked>>
61%
25570
69%
**12
87%
[Alliant 2400]*
<<locked>>
66%
23482
64%
**80
81%
[Alliant BLUE DOT]*
<<locked>>
61%
19624
53%
**71
85%
Alliant POWER PISTOL
<<locked>>
61%
30356
82%
**81
99%
Alliant UNIQUE
<<locked>>
61%
30081
81%
**86
100%
[Hodgdon LilGun]*
<<locked>>
79%
23888
65%
**45
80%
Hodgdon TrailBoss
<<locked>>
61%
10994
30%
**8
100%
[Lovex D037.2]*
<<locked>>
61%
26136
71%
**25
86%
Maxam CSB 1
<<locked>>
61%
28094
76%
**84
100%
Maxam CSB 2
<<locked>>
61%
30980
84%
**20
100%
Maxam CSB 3
<<locked>>
61%
30661
83%
**01
100%
[Ramshot Enforcer]*
<<locked>>
66%
22191
60%
**66
81%
ReloadSwiss RS 14
<<locked>>
62%
10689
29%
**4
100%
ReloadSwiss RS 20
<<locked>>
61%
29457
80%
**70
100%
ReloadSwiss RS 24
<<locked>>
61%
28152
76%
**52
95%
Rottweil P 806
<<locked>>
61%
25759
70%
**09
100%
SNPE Vectan A0
<<locked>>
61%
27644
75%
**17
100%
[SNPE Vectan BA6 1/2]*
<<locked>>
87%
20334
55%
**07
81%
SNPE Vectan BA7 1/2
<<locked>>
61%
24903
67%
**24
100%
[Shooters World Heavy Pistol]*
<<locked>>
61%
26136
71%
**25
86%
Somchem MS200
<<locked>>
61%
30647
83%
**66
100%
Vihtavuori 3N37
<<locked>>
61%
28950
78%
**12
100%
Vihtavuori 3N38
<<locked>>
61%
21437
58%
**11
92%
Vihtavuori N105
<<locked>>
61%
17535
47%
**52
92%
[Vihtavuori N110]*
<<locked>>
84%
22640
61%
**89
80%
Vihtavuori N32C Tin Star
<<locked>>
61%
20987
57%
**8
100%
Vihtavuori N340
<<locked>>
61%
30429
82%
**63
100%
Vihtavuori N350
<<locked>>
61%
26672
72%
**60
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.

<<locked>>... you need to buy an access license to unlock the data

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