Load data for 9 x 20 VGW + .357 | 158gr | Speer JSP

Recommended Powder(s): Alliant UNIQUE, ReloadSwiss RS 20, SNPE Vectan A0, Vihtavuori 3N37, Vihtavuori N340

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.357 \| 158gr \| Speer JSP
Manufacturer SKU:	4217
Bullet Weight:	158gr \| 10.2g
Bullet Diameter:	0.357" \| 9.07mm
Bullet Length:	0.630" \| 16.0mm
Caliber:	9 x 20 VGW load data
Case Length (l3):	0.786" \| 20.0mm
Cartridge Length (C.O.L.):	1.190" \| 30.2mm
Seated Depth:	0.226" \| 5.7mm
Shank Seated Depth:	0.226" \| 5.7mm
Case Capacity:	15.2 Grains of Water \| 0.99 cm³
Primer Size:	Small Pistol (SP)
Max. allowed Pressure:	43511 psi \| 3000 bar
LID:	LID_B6224_C1231
Last updated:	2025-01-01

Load data for 116 loads in caliber 9 x 20 VGW with .357 | 158gr | Speer JSP bullet and 58 powders such as Alliant UNIQUE, ReloadSwiss RS 20, SNPE Vectan A0, Vihtavuori 3N37, Vihtavuori N340. 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>>	95%	24918	57%	**20	91%
ADI AP 70N	<<locked>>	79%	38522	89%	**09	100%
ADI APS 350	<<locked>>	81%	36666	84%	**2	100%
ADI APS 450	<<locked>>	85%	37637	87%	**5	100%
ADI AS 30	<<locked>>	89%	38159	88%	**10	100%
ADI AS 50N	<<locked>>	85%	38189	88%	**50	100%
Accurate No. 2	<<locked>>	85%	37971	87%	**06	100%
Accurate No. 5	<<locked>>	70%	36912	85%	**78	98%
[Accurate No. 7]*	<<locked>>	90%	38145	88%	**34	88%
Accurate Solo 1000	<<locked>>	86%	37115	85%	**24	100%
Accurate Solo 1250	<<locked>>	94%	38624	89%	**89	100%
Alliant BULLSEYE	<<locked>>	82%	37579	86%	**45	100%
Alliant POWER PISTOL	<<locked>>	93%	36999	85%	**27	96%
Alliant UNIQUE 👍	<<locked>>	96%	38392	88%	**65	100%
Baschieri & Pellagri 100	<<locked>>	89%	38029	87%	**33	100%
Hodgdon Clays	<<locked>>	81%	37173	85%	**8	100%
Hodgdon HP38	<<locked>>	65%	37304	86%	**66	100%
Hodgdon HS-6	<<locked>>	77%	37449	86%	**68	99%
Hodgdon Longshot	<<locked>>	74%	37884	87%	**71	100%
Hodgdon Universal	<<locked>>	88%	38522	89%	**09	100%
Hodgdon TrailBoss	<<locked>>	94%	11385	26%	**6	100%
Lovex D036	<<locked>>	72%	39117	90%	**01	98%
[Lovex D037.1]*	<<locked>>	90%	38145	88%	**34	88%
Lovex S011	<<locked>>	75%	37681	87%	**53	100%
Lovex S020	<<locked>>	86%	39146	90%	**25	100%
Maxam CSB 1	<<locked>>	95%	36056	83%	**66	100%
Maxam CSB 2	<<locked>>	96%	38464	88%	**99	100%
Maxam CSB 3	<<locked>>	92%	38058	87%	**63	100%
Maxam CSB 4	<<locked>>	87%	37391	86%	**40	100%
Maxam CSB 5	<<locked>>	81%	36535	84%	**8	100%
Ramshot Silhouette	<<locked>>	77%	37159	85%	**45	100%
Ramshot True Blue	<<locked>>	73%	38595	89%	**71	100%
Ramshot Zip	<<locked>>	67%	38334	88%	**83	100%
ReloadSwiss RS 12	<<locked>>	82%	37405	86%	**76	100%
ReloadSwiss RS 20 👍	<<locked>>	95%	35984	83%	**38	100%
ReloadSwiss RS 24	<<locked>>	96%	37391	86%	**11	90%
Rottweil P 801	<<locked>>	76%	36811	85%	**43	100%
Rottweil P 806	<<locked>>	95%	27601	63%	**61	98%
SNPE Vectan A0 👍	<<locked>>	96%	37391	86%	**02	100%
SNPE Vectan BA 9	<<locked>>	87%	37057	85%	**76	100%
SNPE Vectan BA10	<<locked>>	79%	37623	86%	**5	100%
SNPE Vectan BA7 1/2	<<locked>>	96%	32372	74%	**96	98%
SNPE Vectan BA9 1/2	<<locked>>	90%	38464	88%	**02	100%
Shooters World Auto Pistol	<<locked>>	72%	39117	90%	**01	98%
[Shooters World Major Pistol]*	<<locked>>	90%	38145	88%	**34	88%
Somchem MP200	<<locked>>	86%	37289	86%	**38	100%
Somchem MS200	<<locked>>	92%	37811	87%	**22	100%
Somchem S221	<<locked>>	81%	37434	86%	**94	93%
Vihtavuori 3N37 👍	<<locked>>	96%	38348	88%	**88	100%
[Vihtavuori 3N38]*	<<locked>>	95%	25237	58%	**53	85%
[Vihtavuori N105]*	<<locked>>	97%	20175	46%	**07	84%
Vihtavuori N310	<<locked>>	70%	36869	85%	**5	100%
Vihtavuori N320	<<locked>>	87%	39131	90%	**63	100%
Vihtavuori N32C Tin Star	<<locked>>	95%	25396	58%	**6	100%
Vihtavuori N330	<<locked>>	89%	38522	89%	**12	100%
Vihtavuori N340 👍	<<locked>>	93%	38595	89%	**32	100%
Vihtavuori N350	<<locked>>	97%	35723	82%	**55	100%
Winchester 231	<<locked>>	75%	38334	88%	**83	100%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AP 100]*	<<locked>>	72%	13866	32%	**0	80%
ADI AP 70N	<<locked>>	62%	23888	55%	**5	100%
ADI APS 350	<<locked>>	63%	24192	56%	**4	100%
ADI APS 450	<<locked>>	61%	21654	50%	**1	100%
ADI AS 30	<<locked>>	62%	20262	47%	**0	100%
ADI AS 50N	<<locked>>	61%	20827	48%	**0	100%
Accurate No. 2	<<locked>>	61%	18463	42%	**6	97%
Accurate No. 5	<<locked>>	62%	27441	63%	**63	94%
[Accurate No. 7]*	<<locked>>	79%	25498	59%	**73	81%
Accurate Solo 1000	<<locked>>	60%	19812	46%	**3	100%
Accurate Solo 1250	<<locked>>	62%	16520	38%	**0	100%
Alliant BULLSEYE	<<locked>>	61%	21248	49%	**8	100%
[Alliant POWER PISTOL]*	<<locked>>	62%	15345	35%	**3	81%
Alliant UNIQUE	<<locked>>	60%	15476	36%	**3	97%
Baschieri & Pellagri 100	<<locked>>	62%	18971	44%	**3	100%
Hodgdon Clays	<<locked>>	63%	24352	56%	**4	100%
Hodgdon HP38	<<locked>>	61%	32619	75%	**24	100%
Hodgdon HS-6	<<locked>>	61%	21944	50%	**8	93%
Hodgdon Longshot	<<locked>>	61%	25005	57%	**17	97%
Hodgdon Universal	<<locked>>	60%	18869	43%	**9	100%
Hodgdon TrailBoss	<<locked>>	89%	10414	24%	**9	100%
Lovex D036	<<locked>>	62%	27398	63%	**63	94%
[Lovex D037.1]*	<<locked>>	79%	25498	59%	**73	81%
Lovex S011	<<locked>>	60%	23960	55%	**5	100%
Lovex S020	<<locked>>	61%	18275	42%	**3	100%
Maxam CSB 1	<<locked>>	60%	14620	34%	**7	100%
Maxam CSB 2	<<locked>>	61%	15229	35%	**7	100%
Maxam CSB 3	<<locked>>	61%	17956	41%	**3	100%
Maxam CSB 4	<<locked>>	62%	20117	46%	**0	100%
Maxam CSB 5	<<locked>>	62%	22597	52%	**6	100%
Ramshot Silhouette	<<locked>>	61%	22365	51%	**5	99%
Ramshot True Blue	<<locked>>	61%	25454	58%	**17	97%
Ramshot Zip	<<locked>>	61%	31430	72%	**17	100%
ReloadSwiss RS 12	<<locked>>	61%	20610	47%	**9	100%
ReloadSwiss RS 20	<<locked>>	61%	13764	32%	**3	98%
[ReloadSwiss RS 24]*	<<locked>>	77%	20856	48%	**4	80%
Rottweil P 801	<<locked>>	60%	23989	55%	**2	100%
[Rottweil P 806]*	<<locked>>	65%	10080	23%	**4	81%
SNPE Vectan A0	<<locked>>	61%	15142	35%	**1	96%
SNPE Vectan BA 9	<<locked>>	61%	18826	43%	**0	100%
SNPE Vectan BA10	<<locked>>	60%	23699	54%	**7	100%
[SNPE Vectan BA7 1/2]*	<<locked>>	60%	12372	28%	**8	85%
SNPE Vectan BA9 1/2	<<locked>>	60%	17564	40%	**0	100%
Shooters World Auto Pistol	<<locked>>	62%	27398	63%	**63	94%
[Shooters World Major Pistol]*	<<locked>>	79%	25498	59%	**73	81%
Somchem MP200	<<locked>>	60%	17927	41%	**9	97%
Somchem MS200	<<locked>>	62%	17666	41%	**3	99%
[Somchem S221]*	<<locked>>	61%	19276	44%	**5	82%
[Vihtavuori 3N37]*	<<locked>>	62%	14199	33%	**0	89%
[Vihtavuori 3N38]*	<<locked>>	87%	19711	45%	**1	80%
[Vihtavuori N105]*	<<locked>>	90%	16810	39%	**5	80%
Vihtavuori N310	<<locked>>	61%	28761	66%	**9	100%
Vihtavuori N320	<<locked>>	60%	18811	43%	**6	100%
Vihtavuori N32C Tin Star	<<locked>>	60%	11066	25%	**9	100%
Vihtavuori N330	<<locked>>	62%	17753	41%	**6	100%
Vihtavuori N340	<<locked>>	61%	16012	37%	**0	98%
[Vihtavuori N350]*	<<locked>>	61%	12502	29%	**7	87%
Winchester 231	<<locked>>	61%	25411	58%	**1	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