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Load data for 9 x 21 + .357 | 125gr | Speer JSP

Recommended Powder(s): Alliant BULLSEYE, Ramshot Silhouette, ReloadSwiss RS 20, Somchem MP200, Somchem MS200

9 x 21 + .357 | 125gr | Speer JSP

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.357 | 125gr | Speer JSP
Manufacturer SKU:
4011
Bullet Weight:
125gr | 8.1g
Bullet Diameter:
0.357" | 9.07mm
Bullet Length:
0.515" | 13.1mm
Caliber:
9 x 21 load data
Case Length (l3):
0.830" | 21.1mm
Cartridge Length (C.O.L.):
1.154" | 29.3mm
Seated Depth:
0.191" | 4.9mm
Shank Seated Depth:
0.191" | 4.9mm
Case Capacity:
15.5 Grains of Water | 1.01 cm³
Primer Size:
Small Pistol (SP)
Max. allowed Pressure:
34084 psi | 2350 bar
LID:
LID_B6217_C1232
Last updated:
2025-01-01

Load data for 104 loads in caliber 9 x 21 with .357 | 125gr | Speer JSP bullet and 52 powders such as Alliant BULLSEYE, Ramshot Silhouette, ReloadSwiss RS 20, Somchem MP200, Somchem MS200. 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
96%
68%
86%
ADI AP 70N
73%
89%
100%
ADI APS 350
72%
85%
100%
ADI APS 450
75%
86%
100%
ADI AS 30
79%
86%
100%
ADI AS 50N
78%
90%
100%
Accurate No. 2
78%
85%
99%
Accurate No. 5
67%
90%
93%
Accurate Solo 1000
79%
88%
100%
Accurate Solo 1250
87%
88%
100%
Alliant BULLSEYE
76%
87%
100%
Alliant POWER PISTOL
89%
89%
90%
Alliant UNIQUE
88%
87%
100%
Baschieri & Pellagri 100
81%
88%
100%
Hodgdon Clays
72%
85%
100%
Hodgdon HS-6
73%
90%
95%
Hodgdon Longshot
69%
86%
96%
Hodgdon Universal
81%
89%
100%
Hodgdon TrailBoss
93%
30%
100%
Lovex D036
67%
89%
93%
Lovex S011
69%
87%
100%
Lovex S020
79%
85%
100%
Maxam CSB 1
90%
87%
100%
Maxam CSB 2
88%
86%
100%
Maxam CSB 3
84%
88%
100%
Maxam CSB 4
81%
88%
100%
Maxam CSB 5
75%
88%
100%
Ramshot Silhouette
72%
87%
99%
Ramshot True Blue
68%
89%
97%
ReloadSwiss RS 12
77%
89%
100%
ReloadSwiss RS 14
96%
28%
99%
ReloadSwiss RS 20
91%
88%
100%
ReloadSwiss RS 24
91%
86%
82%
Rottweil P 801
69%
85%
100%
Rottweil P 806
96%
71%
93%
SNPE Vectan A0
91%
90%
100%
SNPE Vectan BA 9
81%
89%
100%
SNPE Vectan BA10
70%
86%
100%
SNPE Vectan BA7 1/2
96%
88%
96%
SNPE Vectan BA9 1/2
83%
88%
100%
Shooters World Auto Pistol
67%
89%
93%
Somchem MP200
81%
89%
100%
Somchem MS200
84%
86%
100%
Somchem S221
77%
88%
87%
Vihtavuori 3N37
89%
87%
97%
Vihtavuori N310
65%
89%
100%
Vihtavuori N320
78%
84%
100%
Vihtavuori N32C Tin Star
94%
67%
100%
Vihtavuori N330
82%
85%
100%
Vihtavuori N340
85%
85%
100%
Vihtavuori N350
93%
85%
97%
Winchester 231
68%
88%
100%

Max Load - Barrel Length: 5.50''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AP 100
84%
52%
81%
ADI AP 70N
62%
64%
100%
ADI APS 350
62%
67%
100%
ADI APS 450
60%
59%
100%
ADI AS 30
61%
55%
100%
ADI AS 50N
62%
59%
100%
Accurate No. 2
62%
50%
93%
Accurate No. 5
61%
72%
90%
Accurate Solo 1000
62%
57%
100%
Accurate Solo 1250
60%
43%
99%
Alliant BULLSEYE
62%
59%
98%
Alliant POWER PISTOL
71%
54%
81%
Alliant UNIQUE
61%
43%
94%
Baschieri & Pellagri 100
60%
49%
100%
Hodgdon Clays
62%
67%
100%
Hodgdon HS-6
60%
59%
89%
Hodgdon Longshot
61%
66%
93%
Hodgdon Universal
61%
52%
100%
Hodgdon TrailBoss
75%
21%
99%
Lovex D036
61%
72%
90%
Lovex S011
60%
66%
100%
Lovex S020
61%
49%
98%
Maxam CSB 1
61%
41%
98%
Maxam CSB 2
62%
42%
100%
Maxam CSB 3
60%
47%
100%
Maxam CSB 4
61%
53%
100%
Maxam CSB 5
61%
60%
100%
Ramshot Silhouette
61%
62%
96%
Ramshot True Blue
60%
68%
93%
ReloadSwiss RS 12
61%
55%
100%
ReloadSwiss RS 14
78%
21%
95%
ReloadSwiss RS 20
61%
38%
94%
ReloadSwiss RS 24
88%
78%
81%
Rottweil P 801
60%
65%
100%
Rottweil P 806
75%
37%
81%
SNPE Vectan A0
61%
42%
93%
SNPE Vectan BA 9
61%
52%
99%
SNPE Vectan BA10
62%
69%
100%
SNPE Vectan BA7 1/2
62%
36%
81%
SNPE Vectan BA9 1/2
61%
49%
99%
Shooters World Auto Pistol
61%
72%
90%
Somchem MP200
62%
52%
95%
Somchem MS200
60%
46%
96%
Somchem S221
66%
62%
80%
Vihtavuori 3N37
61%
37%
83%
Vihtavuori N310
62%
82%
100%
Vihtavuori N320
62%
53%
100%
Vihtavuori N32C Tin Star
60%
29%
100%
Vihtavuori N330
60%
44%
100%
Vihtavuori N340
62%
44%
94%
Vihtavuori N350
60%
34%
81%
Winchester 231
60%
68%
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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