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

Recommended Powder(s): Rottweil P 806, SNPE Vectan BA7 1/2, Somchem S221, Vihtavuori N105, Vihtavuori N350

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.357 \| 158gr \| Speer JHP
Manufacturer SKU:	4211
Bullet Weight:	158gr \| 10.2g
Bullet Diameter:	0.357" \| 9.07mm
Bullet Length:	0.640" \| 16.3mm
Caliber:	.357 Magnum load data
Case Length (l3):	1.290" \| 32.8mm
Cartridge Length (C.O.L.):	1.566" \| 39.8mm
Seated Depth:	0.364" \| 9.2mm
Shank Seated Depth:	0.364" \| 9.2mm
Case Capacity:	25.6 Grains of Water \| 1.66 cm³
Primer Size:	Small Pistol Magnum (SPM)
Max. allowed Pressure:	43511 psi \| 3000 bar
LID:	LID_B6223_C513
Last updated:	2025-02-02

Load data for 122 loads in caliber .357 Magnum with .357 | 158gr | Speer JHP bullet and 61 powders such as Rottweil P 806, SNPE Vectan BA7 1/2, Somchem S221, Vihtavuori N105, Vihtavuori N350. 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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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	<<locked>>	96%	38696	89%	**48	100%
ADI AP 70N	<<locked>>	70%	42859	99%	**66	100%
ADI AS 30	<<locked>>	81%	42134	97%	**71	100%
ADI AS 50N	<<locked>>	75%	40959	94%	**98	100%
Accurate No. 2	<<locked>>	77%	42583	98%	**93	100%
Accurate No. 5	<<locked>>	63%	43192	99%	**01	100%
Accurate No. 7	<<locked>>	78%	42496	98%	**53	96%
Accurate No. 9	<<locked>>	86%	41408	95%	**30	90%
Accurate Solo 1000	<<locked>>	79%	41684	96%	**94	100%
Accurate Solo 1250	<<locked>>	82%	40524	93%	**34	100%
Accurate TCM	<<locked>>	85%	40712	94%	**21	91%
[Alliant 2400]*	<<locked>>	96%	39827	92%	**37	87%
Alliant BULLSEYE	<<locked>>	74%	42279	97%	**22	100%
Alliant POWER PISTOL	<<locked>>	81%	40770	94%	**14	100%
Alliant UNIQUE	<<locked>>	84%	42583	98%	**32	100%
Baschieri & Pellagri 100	<<locked>>	79%	40843	94%	**84	100%
Hodgdon Clays	<<locked>>	79%	43091	99%	**22	100%
Hodgdon HS-6	<<locked>>	67%	41017	94%	**52	100%
Hodgdon Longshot	<<locked>>	65%	42293	97%	**58	100%
Hodgdon Universal	<<locked>>	76%	41292	95%	**53	100%
Hodgdon TrailBoss	<<locked>>	97%	17187	40%	**0	100%
Lovex D036	<<locked>>	63%	43149	99%	**01	100%
Lovex D037.1	<<locked>>	78%	42496	98%	**53	96%
Lovex D037.2	<<locked>>	86%	42989	99%	**50	91%
Lovex S011	<<locked>>	68%	41046	94%	**07	100%
Lovex S020	<<locked>>	76%	43279	99%	**86	100%
Maxam CSB 1	<<locked>>	88%	42656	98%	**50	100%
Maxam CSB 2	<<locked>>	84%	43192	99%	**53	100%
Maxam CSB 3	<<locked>>	81%	41191	95%	**17	100%
Maxam CSB 4	<<locked>>	79%	42003	97%	**01	100%
Maxam CSB 5	<<locked>>	75%	41582	96%	**52	100%
[Ramshot Enforcer]*	<<locked>>	97%	40727	94%	**57	88%
Ramshot Silhouette	<<locked>>	68%	41191	95%	**16	100%
Ramshot True Blue	<<locked>>	63%	41191	95%	**42	100%
ReloadSwiss RS 12	<<locked>>	73%	43439	100%	**37	100%
ReloadSwiss RS 14	<<locked>>	92%	14605	34%	**0	100%
ReloadSwiss RS 20	<<locked>>	85%	43149	99%	**22	100%
ReloadSwiss RS 24	<<locked>>	84%	41814	96%	**34	97%
Rottweil P 801	<<locked>>	67%	40930	94%	**91	100%
Rottweil P 806 👍	<<locked>>	88%	41539	95%	**27	100%
SNPE Vectan A0	<<locked>>	86%	41379	95%	**73	100%
SNPE Vectan BA 9	<<locked>>	78%	41524	95%	**47	100%
SNPE Vectan BA10	<<locked>>	75%	42047	97%	**32	100%
SNPE Vectan BA7 1/2 👍	<<locked>>	92%	42917	99%	**48	100%
SNPE Vectan BA9 1/2	<<locked>>	80%	43047	99%	**66	100%
Shooters World Auto Pistol	<<locked>>	63%	43149	99%	**01	100%
Shooters World Heavy Pistol	<<locked>>	86%	42989	99%	**50	91%
Shooters World Major Pistol	<<locked>>	78%	42496	98%	**53	96%
Somchem MP200	<<locked>>	78%	42989	99%	**22	100%
Somchem MS200	<<locked>>	83%	43120	99%	**99	100%
Somchem S221 👍	<<locked>>	70%	41162	95%	**01	99%
Vihtavuori 3N37	<<locked>>	85%	43482	100%	**78	100%
Vihtavuori 3N38	<<locked>>	96%	43294	100%	**34	98%
Vihtavuori N105 👍	<<locked>>	95%	34156	78%	**78	99%
Vihtavuori N310	<<locked>>	65%	42119	97%	**29	100%
Vihtavuori N320	<<locked>>	75%	40379	93%	**88	100%
Vihtavuori N32C Tin Star	<<locked>>	94%	34635	80%	**66	100%
Vihtavuori N330	<<locked>>	77%	40930	94%	**47	100%
Vihtavuori N340	<<locked>>	83%	43497	100%	**09	100%
Vihtavuori N350 👍	<<locked>>	87%	42279	97%	**58	100%
Winchester 231	<<locked>>	66%	41655	96%	**37	100%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AP 100]*	<<locked>>	61%	15069	35%	**2	88%
ADI AP 70N	<<locked>>	62%	33591	77%	**78	100%
ADI AS 30	<<locked>>	61%	26774	62%	**01	100%
ADI AS 50N	<<locked>>	61%	28834	66%	**63	100%
Accurate No. 2	<<locked>>	62%	26469	61%	**06	100%
Accurate No. 5	<<locked>>	61%	40219	92%	**65	100%
[Accurate No. 7]*	<<locked>>	61%	22727	52%	**52	85%
[Accurate No. 9]*	<<locked>>	70%	24323	56%	**81	80%
Accurate Solo 1000	<<locked>>	61%	26571	61%	**24	100%
Accurate Solo 1250	<<locked>>	61%	23453	54%	**33	100%
[Accurate TCM]*	<<locked>>	67%	22307	51%	**32	80%
[Alliant 2400]*	<<locked>>	85%	28616	66%	**73	80%
Alliant BULLSEYE	<<locked>>	62%	30298	70%	**84	100%
Alliant POWER PISTOL	<<locked>>	60%	22162	51%	**25	93%
Alliant UNIQUE	<<locked>>	62%	23946	55%	**93	100%
Baschieri & Pellagri 100	<<locked>>	61%	26020	60%	**24	100%
Hodgdon Clays	<<locked>>	62%	29617	68%	**8	100%
Hodgdon HS-6	<<locked>>	61%	33112	76%	**57	100%
Hodgdon Longshot	<<locked>>	61%	36651	84%	**96	100%
Hodgdon Universal	<<locked>>	60%	27108	62%	**89	100%
Hodgdon TrailBoss	<<locked>>	61%	8412	19%	**6	100%
Lovex D036	<<locked>>	61%	40161	92%	**65	100%
[Lovex D037.1]*	<<locked>>	61%	22727	52%	**52	85%
[Lovex D037.2]*	<<locked>>	70%	25251	58%	**94	81%
Lovex S011	<<locked>>	62%	34650	80%	**48	100%
Lovex S020	<<locked>>	62%	28108	65%	**22	100%
Maxam CSB 1	<<locked>>	60%	21393	49%	**1	100%
Maxam CSB 2	<<locked>>	60%	23322	54%	**27	100%
Maxam CSB 3	<<locked>>	60%	24236	56%	**17	100%
Maxam CSB 4	<<locked>>	61%	26890	62%	**33	100%
Maxam CSB 5	<<locked>>	60%	28906	66%	**14	100%
[Ramshot Enforcer]*	<<locked>>	85%	27166	62%	**63	81%
Ramshot Silhouette	<<locked>>	61%	33011	76%	**27	100%
Ramshot True Blue	<<locked>>	61%	38435	88%	**16	100%
ReloadSwiss RS 12	<<locked>>	61%	31169	72%	**15	100%
ReloadSwiss RS 14	<<locked>>	62%	8238	19%	**9	100%
ReloadSwiss RS 20	<<locked>>	61%	21770	50%	**63	100%
[ReloadSwiss RS 24]*	<<locked>>	61%	20421	47%	**96	86%
Rottweil P 801	<<locked>>	61%	34969	80%	**25	100%
Rottweil P 806	<<locked>>	61%	16650	38%	**43	95%
SNPE Vectan A0	<<locked>>	60%	21408	49%	**20	100%
SNPE Vectan BA 9	<<locked>>	60%	25585	59%	**63	100%
SNPE Vectan BA10	<<locked>>	60%	29907	69%	**04	100%
SNPE Vectan BA7 1/2	<<locked>>	61%	18681	43%	**07	97%
SNPE Vectan BA9 1/2	<<locked>>	62%	26150	60%	**73	100%
Shooters World Auto Pistol	<<locked>>	61%	40161	92%	**65	100%
[Shooters World Heavy Pistol]*	<<locked>>	70%	25251	58%	**94	81%
[Shooters World Major Pistol]*	<<locked>>	61%	22727	52%	**52	85%
Somchem MP200	<<locked>>	61%	26832	62%	**35	100%
Somchem MS200	<<locked>>	61%	24279	56%	**76	100%
Somchem S221	<<locked>>	61%	29341	67%	**37	95%
Vihtavuori 3N37	<<locked>>	61%	21466	49%	**83	99%
[Vihtavuori 3N38]*	<<locked>>	61%	15113	35%	**5	81%
[Vihtavuori N105]*	<<locked>>	64%	12676	29%	**5	81%
Vihtavuori N310	<<locked>>	61%	38319	88%	**89	100%
Vihtavuori N320	<<locked>>	61%	27644	64%	**53	100%
Vihtavuori N32C Tin Star	<<locked>>	61%	16636	38%	**3	100%
Vihtavuori N330	<<locked>>	61%	26005	60%	**83	100%
Vihtavuori N340	<<locked>>	62%	23873	55%	**76	100%
Vihtavuori N350	<<locked>>	62%	20146	46%	**50	98%
Winchester 231	<<locked>>	61%	35447	81%	**75	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.