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Load data for .357 Magnum + .357 | 158gr | Speer JSP

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Recommended Powder(s): ADI AP 100, Rottweil P 806, SNPE Vectan BA7 1/2, Vihtavuori N105, Vihtavuori N350

.357 Magnum + .357 | 158gr | Speer JSP

Load Specifications

Speer Load Data | xxlreloading.com

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

Load data for 110 loads in caliber .357 Magnum with a .357 | 158gr | Speer JSP bullet based on the specified parameters like bullet length, cartridge length, and case capacity as shown 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".

    • a load must fulfill certain criteria to be listed below - see here.

    • our load data might deviate from other sources - see most common reasons here

    • all loads are based on the bullet and case dimensions shown further below - see here what to do if you deviate.

    • you can set your own specifications in the "Personalized Load Calculator"

    • Go to the bottom of the "My Account " page to set the measure system (imperial vs. metric) 

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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
96%
90%
100%
ADI AP 70N
66%
89%
100%
ADI AS 30
76%
87%
100%
ADI AS 50N
71%
85%
100%
Accurate No. 2
73%
87%
100%
Accurate No. 7
74%
86%
94%
Accurate No. 9
83%
89%
89%
Accurate Solo 1000
73%
83%
100%
Accurate Solo 1250
77%
84%
100%
Accurate TCM
83%
89%
90%
Alliant 2400
93%
86%
85%
Alliant BULLSEYE
70%
88%
100%
Alliant POWER PISTOL
79%
88%
99%
Alliant UNIQUE
79%
89%
100%
Baschieri & Pellagri 100
74%
84%
100%
Hodgdon Clays
74%
89%
100%
Hodgdon HS-6
65%
89%
100%
Hodgdon Universal
74%
89%
100%
Hodgdon TrailBoss
95%
39%
100%
Lovex D037.1
74%
86%
94%
Lovex D037.2
82%
87%
89%
Lovex S011
64%
85%
100%
Lovex S020
72%
90%
100%
Maxam CSB 1
81%
86%
100%
Maxam CSB 2
78%
86%
100%
Maxam CSB 3
78%
89%
100%
Maxam CSB 4
75%
87%
100%
Maxam CSB 5
68%
82%
100%
Ramshot Enforcer
94%
88%
87%
Ramshot Silhouette
66%
89%
100%
ReloadSwiss RS 12
68%
87%
100%
ReloadSwiss RS 14
97%
37%
100%
ReloadSwiss RS 20
79%
87%
100%
ReloadSwiss RS 24
81%
88%
96%
Rottweil P 801
64%
89%
100%
Rottweil P 806
85%
90%
100%
SNPE Vectan A0
83%
90%
100%
SNPE Vectan BA 9
75%
90%
100%
SNPE Vectan BA10
68%
84%
100%
SNPE Vectan BA7 1/2
86%
87%
100%
SNPE Vectan BA9 1/2
76%
90%
100%
Shooters World Heavy Pistol
82%
87%
89%
Shooters World Major Pistol
74%
86%
94%
Somchem MP200
72%
87%
100%
Somchem MS200
77%
87%
100%
Somchem S221
68%
89%
98%
Vihtavuori 3N37
79%
87%
100%
Vihtavuori 3N38
90%
84%
96%
Vihtavuori N105
95%
79%
99%
Vihtavuori N320
72%
87%
100%
Vihtavuori N32C Tin Star
97%
84%
100%
Vihtavuori N330
74%
88%
100%
Vihtavuori N340
76%
83%
100%
Vihtavuori N350
83%
88%
100%
Winchester 231
64%
90%
100%

Max Load - Barrel Length: 

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AP 100
61%
36%
89%
ADI AP 70N
61%
76%
100%
ADI AS 30
60%
60%
100%
ADI AS 50N
60%
65%
100%
Accurate No. 2
61%
60%
100%
Accurate No. 7
61%
53%
86%
Accurate No. 9
70%
57%
81%
Accurate Solo 1000
62%
63%
100%
Accurate Solo 1250
61%
53%
100%
Accurate TCM
67%
52%
81%
Alliant 2400
85%
66%
80%
Alliant BULLSEYE
61%
68%
100%
Alliant POWER PISTOL
61%
52%
94%
Alliant UNIQUE
61%
54%
100%
Baschieri & Pellagri 100
61%
59%
100%
Hodgdon Clays
61%
67%
100%
Hodgdon HS-6
61%
77%
100%
Hodgdon Universal
61%
64%
100%
Hodgdon TrailBoss
66%
22%
100%
Lovex D037.1
61%
53%
86%
Lovex D037.2
70%
58%
81%
Lovex S011
61%
78%
100%
Lovex S020
61%
63%
100%
Maxam CSB 1
61%
51%
100%
Maxam CSB 2
61%
55%
100%
Maxam CSB 3
61%
58%
100%
Maxam CSB 4
60%
61%
100%
Maxam CSB 5
61%
68%
100%
Ramshot Enforcer
85%
63%
81%
Ramshot Silhouette
61%
77%
100%
ReloadSwiss RS 12
62%
73%
100%
ReloadSwiss RS 14
61%
19%
100%
ReloadSwiss RS 20
61%
52%
100%
ReloadSwiss RS 24
61%
46%
86%
Rottweil P 801
62%
82%
100%
Rottweil P 806
61%
39%
95%
SNPE Vectan A0
61%
51%
100%
SNPE Vectan BA 9
61%
60%
100%
SNPE Vectan BA10
61%
71%
100%
SNPE Vectan BA7 1/2
62%
44%
97%
SNPE Vectan BA9 1/2
61%
59%
100%
Shooters World Heavy Pistol
70%
58%
81%
Shooters World Major Pistol
61%
53%
86%
Somchem MP200
61%
63%
100%
Somchem MS200
62%
57%
100%
Somchem S221
61%
68%
96%
Vihtavuori 3N37
61%
50%
99%
Vihtavuori 3N38
60%
34%
81%
Vihtavuori N105
64%
30%
82%
Vihtavuori N320
62%
66%
100%
Vihtavuori N32C Tin Star
60%
38%
100%
Vihtavuori N330
62%
62%
100%
Vihtavuori N340
61%
54%
100%
Vihtavuori N350
61%
45%
98%
Winchester 231
61%
83%
100%

Start Load - Barrel Length: 

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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