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Load data for .357 Magnum + .357 | 158gr | Geco FMJ FLAT NOSE

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Recommended Powder(s): ADI AP 100, SNPE Vectan BA7 1/2, Somchem S221, Vihtavuori 3N37, Vihtavuori N350

.357 Magnum + .357 | 158gr | Geco FMJ FLAT NOSE

Load Specifications

Geco Load Data | xxlreloading.com

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

Load data for 244 loads in caliber .357 Magnum with a .357 | 158gr | Geco FMJ FLAT NOSE 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
95%
84%
99%
ADI AP 70N
70%
94%
100%
ADI AS 30
81%
95%
100%
ADI AS 50N
76%
93%
100%
Accurate No. 2
78%
98%
100%
Accurate No. 5
64%
97%
100%
Accurate No. 7
79%
97%
95%
Accurate No. 9
87%
96%
89%
Accurate Solo 1000
80%
95%
100%
Accurate Solo 1250
83%
92%
100%
Accurate TCM
87%
94%
91%
Alliant 2400
95%
86%
85%
Alliant BULLSEYE
75%
97%
100%
Alliant POWER PISTOL
83%
94%
100%
Alliant UNIQUE
85%
98%
100%
Baschieri & Pellagri 100
79%
93%
100%
Hodgdon Clays
79%
97%
100%
Hodgdon HS-6
70%
99%
100%
Hodgdon Longshot
65%
95%
100%
Hodgdon Universal
77%
94%
100%
Hodgdon TrailBoss
93%
36%
100%
Lovex D036
64%
97%
100%
Lovex D037.1
79%
97%
95%
Lovex D037.2
85%
93%
89%
Lovex S011
70%
97%
100%
Lovex S020
76%
95%
100%
Maxam CSB 1
87%
94%
100%
Maxam CSB 2
85%
98%
100%
Maxam CSB 3
84%
98%
100%
Maxam CSB 4
80%
95%
100%
Maxam CSB 5
77%
98%
100%
Ramshot Enforcer
97%
88%
86%
Ramshot Silhouette
71%
99%
100%
Ramshot True Blue
66%
99%
100%
ReloadSwiss RS 12
74%
99%
100%
ReloadSwiss RS 14
91%
32%
100%
ReloadSwiss RS 20
87%
100%
100%
ReloadSwiss RS 24
85%
95%
97%
Rottweil P 801
68%
93%
100%
Rottweil P 806
89%
95%
100%
SNPE Vectan A0
87%
95%
100%
SNPE Vectan BA 9
79%
95%
100%
SNPE Vectan BA10
77%
100%
100%
SNPE Vectan BA7 1/2
91%
93%
100%
SNPE Vectan BA9 1/2
82%
98%
100%
Shooters World Auto Pistol
64%
97%
100%
Shooters World Heavy Pistol
85%
93%
89%
Shooters World Major Pistol
79%
97%
95%
Somchem MP200
79%
99%
100%
Somchem MS200
84%
99%
100%
Somchem S221
73%
100%
99%
Vihtavuori 3N37
84%
94%
100%
Vihtavuori 3N38
95%
91%
97%
Vihtavuori N105
96%
76%
98%
Vihtavuori N310
65%
94%
100%
Vihtavuori N320
79%
100%
100%
Vihtavuori N32C Tin Star
95%
79%
100%
Vihtavuori N330
78%
93%
100%
Vihtavuori N340
81%
92%
100%
Vihtavuori N350
87%
95%
100%
Winchester 231
67%
95%
100%

Max Load - Barrel Length: 

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AP 100
61%
34%
87%
ADI AP 70N
60%
72%
100%
ADI AS 30
60%
59%
100%
ADI AS 50N
61%
64%
100%
Accurate No. 2
62%
59%
100%
Accurate No. 5
62%
90%
100%
Accurate No. 7
61%
50%
84%
Accurate No. 9
73%
59%
80%
Accurate Solo 1000
60%
59%
100%
Accurate Solo 1250
61%
52%
100%
Accurate TCM
70%
53%
80%
Alliant 2400
88%
70%
81%
Alliant BULLSEYE
62%
67%
100%
Alliant POWER PISTOL
61%
50%
93%
Alliant UNIQUE
62%
53%
100%
Baschieri & Pellagri 100
61%
58%
100%
Hodgdon Clays
61%
65%
100%
Hodgdon HS-6
61%
74%
100%
Hodgdon Longshot
61%
82%
100%
Hodgdon Universal
60%
60%
100%
Hodgdon TrailBoss
67%
22%
100%
Lovex D036
62%
90%
100%
Lovex D037.1
61%
50%
84%
Lovex D037.2
73%
61%
81%
Lovex S011
60%
74%
100%
Lovex S020
60%
60%
100%
Maxam CSB 1
62%
50%
100%
Maxam CSB 2
60%
51%
100%
Maxam CSB 3
62%
56%
100%
Maxam CSB 4
61%
59%
100%
Maxam CSB 5
61%
67%
100%
Ramshot Enforcer
89%
67%
81%
Ramshot Silhouette
61%
72%
100%
Ramshot True Blue
61%
86%
100%
ReloadSwiss RS 12
61%
69%
100%
ReloadSwiss RS 14
66%
20%
100%
ReloadSwiss RS 20
61%
48%
100%
ReloadSwiss RS 24
61%
45%
84%
Rottweil P 801
61%
79%
100%
Rottweil P 806
61%
36%
94%
SNPE Vectan A0
60%
48%
100%
SNPE Vectan BA 9
61%
57%
100%
SNPE Vectan BA10
62%
70%
100%
SNPE Vectan BA7 1/2
62%
42%
96%
SNPE Vectan BA9 1/2
62%
58%
100%
Shooters World Auto Pistol
62%
90%
100%
Shooters World Heavy Pistol
73%
61%
81%
Shooters World Major Pistol
61%
50%
84%
Somchem MP200
61%
60%
100%
Somchem MS200
61%
54%
100%
Somchem S221
61%
66%
95%
Vihtavuori 3N37
61%
48%
98%
Vihtavuori 3N38
63%
36%
81%
Vihtavuori N105
66%
30%
81%
Vihtavuori N310
61%
85%
100%
Vihtavuori N320
61%
61%
100%
Vihtavuori N32C Tin Star
60%
36%
100%
Vihtavuori N330
61%
58%
100%
Vihtavuori N340
62%
53%
100%
Vihtavuori N350
61%
43%
98%
Winchester 231
61%
80%
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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