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

Recommended Powder(s):

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:	<<locked>>
Caliber:	9 x 21 load data
Case Length (l3):	0.830" \| 21.1mm
Cartridge Length (C.O.L.):	<<locked>>
Seated Depth:	<<locked>>
Shank Seated Depth:	<<locked>>
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:	2026-02-07

Load data for 114 loads in caliber 9 x 21 with .357 | 125gr | Speer JSP bullet and 57 powder(s). 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".
A load must fulfill certain criteria to be listed in the default view below - see "powder criteria to fulfill to be listed".

Our load data might deviate from other sources - see the "most common reasons for deviations".

All loads are based on the bullet and case dimensions shown under "Load Specifications" - see "reloading suggestions" if you deviate.

You can set your specifications in the "Personalized Load Calculator".

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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.
Case Length (Inch)
Case Length (mm)
CaseCapacity (GoW)
Min z (%)
Min FR (%)
Max FR*
Barrel Length (Inch)
Barrel Length (cm)
Safety Buffer (%)
.

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>>	97%	23975	70%	**68	87%
ADI AP 70N	<<locked>>	73%	30269	89%	**14	100%
ADI APS 350	<<locked>>	74%	30095	88%	**20	100%
ADI APS 450	<<locked>>	77%	30255	89%	**60	100%
ADI AS 30	<<locked>>	81%	30269	89%	**06	100%
ADI AS 50N	<<locked>>	78%	30632	90%	**58	100%
Accurate No. 2	<<locked>>	79%	29907	88%	**98	99%
Accurate No. 5	<<locked>>	67%	30530	90%	**76	93%
Accurate Solo 1000	<<locked>>	79%	30066	88%	**32	100%
Accurate Solo 1250	<<locked>>	88%	30603	90%	**01	100%
Alliant BE-86	<<locked>>	85%	29791	87%	**88	100%
Alliant BULLSEYE 👍	<<locked>>	77%	30618	90%	**57	100%
Alliant Herco	<<locked>>	96%	25353	74%	**84	99%
Alliant POWER PISTOL	<<locked>>	89%	30400	89%	**19	90%
Alliant Sport Pistol	<<locked>>	71%	30052	88%	**47	100%
Alliant UNIQUE	<<locked>>	89%	30429	89%	**66	100%
Baschieri & Pellagri 100	<<locked>>	81%	29907	88%	**38	100%
Baschieri & Pellagri 102 Pistol	<<locked>>	96%	25541	75%	**12	100%
Baschieri & Pellagri 103 Pistol	<<locked>>	79%	30560	90%	**78	100%
Hodgdon Clays	<<locked>>	74%	30284	89%	**37	100%
Hodgdon HS-6	<<locked>>	73%	30661	90%	**66	95%
Hodgdon Longshot	<<locked>>	69%	30327	89%	**63	97%
Hodgdon Universal	<<locked>>	81%	30269	89%	**14	100%
Hodgdon CFE Pistol	<<locked>>	84%	30516	90%	**14	100%
Lovex D036	<<locked>>	67%	30487	89%	**83	93%
Lovex S011	<<locked>>	69%	29791	87%	**55	100%
Lovex S020	<<locked>>	80%	30008	88%	**24	100%
Maxam CSB 1	<<locked>>	91%	30458	89%	**91	100%
Maxam CSB 2	<<locked>>	89%	30182	89%	**14	100%
Maxam CSB 3	<<locked>>	84%	30081	88%	**65	100%
Maxam CSB 4	<<locked>>	81%	29892	88%	**48	100%
Maxam CSB 5	<<locked>>	75%	29892	88%	**96	100%
Ramshot Silhouette 👍	<<locked>>	73%	30472	89%	**57	99%
Ramshot True Blue	<<locked>>	68%	30182	89%	**57	97%
ReloadSwiss RS 12	<<locked>>	77%	30443	89%	**98	100%
ReloadSwiss RS 20 👍	<<locked>>	91%	29936	88%	**66	100%
[ReloadSwiss RS 24]*	<<locked>>	92%	29907	88%	**99	83%
Rottweil P 801	<<locked>>	71%	29878	88%	**55	100%
Rottweil P 806	<<locked>>	97%	24947	73%	**99	94%
SNPE Vectan A0	<<locked>>	91%	30545	90%	**11	100%
SNPE Vectan BA 9	<<locked>>	81%	30458	89%	**91	100%
SNPE Vectan BA10	<<locked>>	71%	30240	89%	**60	100%
SNPE Vectan BA7 1/2	<<locked>>	96%	30037	88%	**40	96%
SNPE Vectan BA9 1/2	<<locked>>	83%	30008	88%	**94	100%
SNPE Vectan SP 2	<<locked>>	86%	29936	88%	**39	92%
Shooters World Auto Pistol	<<locked>>	67%	30487	89%	**83	93%
Somchem MP200 👍	<<locked>>	81%	30255	89%	**43	100%
Somchem MS200 👍	<<locked>>	85%	30226	89%	**27	100%
[Somchem S221]*	<<locked>>	77%	30647	90%	**93	87%
Vihtavuori 3N37	<<locked>>	91%	30226	89%	**80	97%
Vihtavuori N310	<<locked>>	65%	30356	89%	**70	100%
Vihtavuori N320	<<locked>>	79%	29486	87%	**52	100%
Vihtavuori N32C Tin Star	<<locked>>	96%	23569	69%	**17	100%
Vihtavuori N330	<<locked>>	83%	30081	88%	**20	100%
Vihtavuori N340	<<locked>>	86%	29965	88%	**27	100%
Vihtavuori N350	<<locked>>	94%	29936	88%	**70	97%
Winchester 231	<<locked>>	68%	30066	88%	**81	100%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AP 100]*	<<locked>>	83%	17216	51%	**20	81%
ADI AP 70N	<<locked>>	62%	21843	64%	**89	100%
ADI APS 350	<<locked>>	62%	22742	67%	**8	100%
ADI APS 450	<<locked>>	60%	20160	59%	**5	100%
ADI AS 30	<<locked>>	61%	18695	55%	**2	100%
ADI AS 50N	<<locked>>	62%	20146	59%	**07	100%
Accurate No. 2	<<locked>>	62%	17143	50%	**1	93%
Accurate No. 5	<<locked>>	61%	24671	72%	**78	90%
Accurate Solo 1000	<<locked>>	62%	19580	57%	**8	100%
Accurate Solo 1250	<<locked>>	60%	14605	43%	**5	99%
Alliant BE-86	<<locked>>	61%	15302	45%	**8	100%
Alliant BULLSEYE	<<locked>>	62%	20044	59%	**73	98%
[Alliant Herco]*	<<locked>>	60%	10501	31%	**3	88%
[Alliant POWER PISTOL]*	<<locked>>	70%	17985	53%	**76	81%
Alliant Sport Pistol	<<locked>>	62%	22481	66%	**25	99%
Alliant UNIQUE	<<locked>>	61%	14634	43%	**1	94%
Baschieri & Pellagri 100	<<locked>>	60%	16737	49%	**2	100%
Baschieri & Pellagri 102 Pistol	<<locked>>	63%	10776	32%	**3	100%
Baschieri & Pellagri 103 Pistol	<<locked>>	61%	18014	53%	**7	100%
Hodgdon Clays	<<locked>>	62%	23003	67%	**5	100%
[Hodgdon HS-6]*	<<locked>>	60%	20015	59%	**86	89%
Hodgdon Longshot	<<locked>>	61%	22394	66%	**35	93%
Hodgdon Universal	<<locked>>	61%	17738	52%	**10	100%
Hodgdon CFE Pistol	<<locked>>	61%	16433	48%	**8	99%
Lovex D036	<<locked>>	61%	24627	72%	**84	90%
Lovex S011	<<locked>>	60%	22524	66%	**53	100%
Lovex S020	<<locked>>	61%	16795	49%	**7	98%
Maxam CSB 1	<<locked>>	61%	14112	41%	**9	98%
Maxam CSB 2	<<locked>>	62%	14315	42%	**5	100%
Maxam CSB 3	<<locked>>	60%	15940	47%	**2	100%
Maxam CSB 4	<<locked>>	61%	17970	53%	**8	100%
Maxam CSB 5	<<locked>>	61%	20349	60%	**1	100%
Ramshot Silhouette	<<locked>>	61%	20987	62%	**02	96%
Ramshot True Blue	<<locked>>	60%	23018	68%	**42	93%
ReloadSwiss RS 12	<<locked>>	61%	18913	55%	**33	100%
ReloadSwiss RS 20	<<locked>>	61%	12879	38%	**8	94%
[ReloadSwiss RS 24]*	<<locked>>	88%	26513	78%	**37	81%
Rottweil P 801	<<locked>>	60%	22133	65%	**53	100%
[Rottweil P 806]*	<<locked>>	75%	12502	37%	**10	81%
SNPE Vectan A0	<<locked>>	61%	14388	42%	**2	93%
SNPE Vectan BA 9	<<locked>>	61%	17579	52%	**1	99%
SNPE Vectan BA10	<<locked>>	62%	23554	69%	**4	100%
[SNPE Vectan BA7 1/2]*	<<locked>>	62%	12241	36%	**9	81%
SNPE Vectan BA9 1/2	<<locked>>	61%	16679	49%	**8	99%
[SNPE Vectan SP 2]*	<<locked>>	65%	15389	45%	**43	80%
Shooters World Auto Pistol	<<locked>>	61%	24627	72%	**84	90%
Somchem MP200	<<locked>>	62%	17695	52%	**17	95%
Somchem MS200	<<locked>>	60%	15606	46%	**5	96%
[Somchem S221]*	<<locked>>	66%	21205	62%	**22	80%
[Vihtavuori 3N37]*	<<locked>>	61%	12705	37%	**2	83%
Vihtavuori N310	<<locked>>	62%	28079	82%	**47	100%
Vihtavuori N320	<<locked>>	62%	18043	53%	**8	100%
Vihtavuori N32C Tin Star	<<locked>>	68%	12285	36%	**3	100%
Vihtavuori N330	<<locked>>	60%	15156	44%	**4	100%
Vihtavuori N340	<<locked>>	62%	14895	44%	**1	94%
[Vihtavuori N350]*	<<locked>>	60%	11458	34%	**3	81%
Winchester 231	<<locked>>	60%	23322	68%	**86	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