Load data for .357 Magnum + .357 | 158gr | LOS SWC

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

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.357 \| 158gr \| LOS SWC
Bullet Weight:	158gr \| 10.2g
Bullet Diameter:	0.357" \| 9.07mm
Bullet Length:	0.681" \| 17.3mm
Caliber:	.357 Magnum load data
Case Length (l3):	1.290" \| 32.8mm
Cartridge Length (C.O.L.):	1.566" \| 39.8mm
Seated Depth:	0.405" \| 10.3mm
Shank Seated Depth:	0.405" \| 10.3mm
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_B3514_C513
Last updated:	2025-02-02

Load data for 112 loads in caliber .357 Magnum with .357 | 158gr | LOS SWC bullet and 56 powders such as ADI AP 100, SNPE Vectan BA7 1/2, Vihtavuori 3N37, 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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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>>	96%	37681	87%	**19	99%
ADI AP 70N	<<locked>>	67%	38783	89%	**14	100%
ADI AS 30	<<locked>>	74%	35621	82%	**83	100%
ADI AS 50N	<<locked>>	73%	38218	88%	**55	100%
Accurate No. 2	<<locked>>	74%	38072	88%	**27	100%
Accurate No. 7	<<locked>>	75%	36738	84%	**62	93%
[Accurate No. 9]*	<<locked>>	83%	36492	84%	**42	87%
Accurate Solo 1000	<<locked>>	77%	38609	89%	**45	100%
Accurate Solo 1250	<<locked>>	78%	36376	84%	**75	100%
[Accurate TCM]*	<<locked>>	84%	38406	88%	**71	89%
[Alliant 2400]*	<<locked>>	95%	37782	87%	**78	84%
Alliant BULLSEYE	<<locked>>	71%	38000	87%	**60	100%
Alliant POWER PISTOL	<<locked>>	80%	38014	87%	**68	99%
Alliant UNIQUE	<<locked>>	81%	38841	89%	**73	100%
Baschieri & Pellagri 100	<<locked>>	75%	36434	84%	**25	100%
Hodgdon Clays	<<locked>>	71%	35882	82%	**30	100%
Hodgdon HS-6	<<locked>>	65%	37231	86%	**93	100%
Hodgdon Longshot	<<locked>>	63%	38232	88%	**99	100%
Hodgdon Universal	<<locked>>	75%	38783	89%	**14	100%
Hodgdon TrailBoss	<<locked>>	94%	16215	37%	**7	100%
Lovex D037.1	<<locked>>	75%	36738	84%	**62	93%
[Lovex D037.2]*	<<locked>>	83%	38058	87%	**65	88%
Lovex S011	<<locked>>	64%	36405	84%	**48	100%
Lovex S020	<<locked>>	70%	35810	82%	**98	100%
Maxam CSB 1	<<locked>>	83%	37173	85%	**78	100%
Maxam CSB 2	<<locked>>	79%	37318	86%	**81	100%
Maxam CSB 3	<<locked>>	79%	38450	88%	**75	100%
Maxam CSB 4	<<locked>>	77%	38972	90%	**58	100%
Maxam CSB 5	<<locked>>	72%	38290	88%	**06	100%
[Ramshot Enforcer]*	<<locked>>	97%	39015	90%	**14	86%
Ramshot Silhouette	<<locked>>	66%	38029	87%	**66	100%
ReloadSwiss RS 12	<<locked>>	68%	37536	86%	**65	100%
ReloadSwiss RS 14	<<locked>>	92%	14620	34%	**7	100%
ReloadSwiss RS 20	<<locked>>	81%	37782	87%	**57	100%
ReloadSwiss RS 24	<<locked>>	83%	38464	88%	**71	96%
Rottweil P 801	<<locked>>	64%	36898	85%	**32	100%
Rottweil P 806	<<locked>>	87%	38769	89%	**85	100%
SNPE Vectan A0	<<locked>>	82%	36463	84%	**07	100%
SNPE Vectan BA 9	<<locked>>	74%	36172	83%	**81	100%
SNPE Vectan BA10	<<locked>>	72%	38986	90%	**86	100%
SNPE Vectan BA7 1/2 👍	<<locked>>	88%	37550	86%	**76	100%
SNPE Vectan BA9 1/2	<<locked>>	77%	38972	90%	**11	100%
[Shooters World Heavy Pistol]*	<<locked>>	83%	38058	87%	**65	88%
Shooters World Major Pistol	<<locked>>	75%	36738	84%	**62	93%
Somchem MP200	<<locked>>	73%	36695	84%	**43	100%
Somchem MS200	<<locked>>	78%	37840	87%	**27	100%
Somchem S221	<<locked>>	69%	37884	87%	**39	98%
Vihtavuori 3N37 👍	<<locked>>	80%	37681	87%	**96	100%
Vihtavuori 3N38	<<locked>>	94%	38537	89%	**58	96%
Vihtavuori N105	<<locked>>	95%	31749	73%	**19	97%
Vihtavuori N320	<<locked>>	72%	37130	85%	**42	100%
Vihtavuori N32C Tin Star	<<locked>>	96%	35360	81%	**56	100%
Vihtavuori N330	<<locked>>	75%	38232	88%	**07	100%
Vihtavuori N340	<<locked>>	77%	36506	84%	**20	100%
Vihtavuori N350 👍	<<locked>>	85%	38972	90%	**09	100%
Winchester 231	<<locked>>	63%	37449	86%	**81	100%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AP 100]*	<<locked>>	62%	15389	35%	**8	88%
ADI AP 70N	<<locked>>	61%	32750	75%	**45	100%
ADI AS 30	<<locked>>	61%	26397	61%	**8	100%
ADI AS 50N	<<locked>>	62%	28616	66%	**47	100%
Accurate No. 2	<<locked>>	61%	25295	58%	**76	100%
[Accurate No. 7]*	<<locked>>	61%	21930	50%	**25	84%
[Accurate No. 9]*	<<locked>>	73%	25831	59%	**81	80%
Accurate Solo 1000	<<locked>>	61%	26237	60%	**04	100%
Accurate Solo 1250	<<locked>>	60%	22307	51%	**7	100%
[Accurate TCM]*	<<locked>>	70%	23453	54%	**35	80%
[Alliant 2400]*	<<locked>>	88%	30647	70%	**83	81%
Alliant BULLSEYE	<<locked>>	61%	28906	66%	**48	100%
Alliant POWER PISTOL	<<locked>>	60%	21611	50%	**96	92%
Alliant UNIQUE	<<locked>>	61%	22829	52%	**63	100%
Baschieri & Pellagri 100	<<locked>>	60%	24569	56%	**8	100%
Hodgdon Clays	<<locked>>	61%	29080	67%	**8	100%
Hodgdon HS-6	<<locked>>	61%	31908	73%	**24	100%
Hodgdon Longshot	<<locked>>	61%	35418	81%	**66	100%
Hodgdon Universal	<<locked>>	61%	27166	62%	**76	100%
Hodgdon TrailBoss	<<locked>>	68%	10037	23%	**9	100%
[Lovex D037.1]*	<<locked>>	61%	21930	50%	**25	84%
[Lovex D037.2]*	<<locked>>	73%	26832	62%	**04	81%
Lovex S011	<<locked>>	61%	33170	76%	**15	100%
Lovex S020	<<locked>>	61%	26861	62%	**93	100%
Maxam CSB 1	<<locked>>	61%	21263	49%	**8	100%
Maxam CSB 2	<<locked>>	61%	23395	54%	**14	100%
Maxam CSB 3	<<locked>>	60%	23989	55%	**01	100%
Maxam CSB 4	<<locked>>	62%	26687	61%	**17	100%
Maxam CSB 5	<<locked>>	60%	28471	65%	**7	100%
[Ramshot Enforcer]*	<<locked>>	88%	29457	68%	**73	81%
Ramshot Silhouette	<<locked>>	61%	32518	75%	**01	100%
ReloadSwiss RS 12	<<locked>>	62%	31386	72%	**99	100%
ReloadSwiss RS 14	<<locked>>	67%	9195	21%	**6	100%
ReloadSwiss RS 20	<<locked>>	62%	21843	50%	**50	100%
[ReloadSwiss RS 24]*	<<locked>>	61%	19435	45%	**53	84%
Rottweil P 801	<<locked>>	61%	33953	78%	**99	100%
Rottweil P 806	<<locked>>	61%	16186	37%	**24	94%
SNPE Vectan A0	<<locked>>	61%	21524	49%	**04	100%
SNPE Vectan BA 9	<<locked>>	61%	25831	59%	**53	100%
SNPE Vectan BA10	<<locked>>	60%	29501	68%	**4	100%
SNPE Vectan BA7 1/2	<<locked>>	61%	18289	42%	**1	96%
SNPE Vectan BA9 1/2	<<locked>>	61%	25034	58%	**47	100%
[Shooters World Heavy Pistol]*	<<locked>>	73%	26832	62%	**04	81%
[Shooters World Major Pistol]*	<<locked>>	61%	21930	50%	**25	84%
Somchem MP200	<<locked>>	61%	26107	60%	**09	100%
Somchem MS200	<<locked>>	62%	24540	56%	**63	100%
Somchem S221	<<locked>>	61%	28485	65%	**11	94%
Vihtavuori 3N37	<<locked>>	61%	20856	48%	**53	98%
[Vihtavuori 3N38]*	<<locked>>	61%	14968	34%	**2	80%
[Vihtavuori N105]*	<<locked>>	64%	12676	29%	**5	80%
Vihtavuori N320	<<locked>>	61%	27441	63%	**33	100%
Vihtavuori N32C Tin Star	<<locked>>	61%	16433	38%	**7	100%
Vihtavuori N330	<<locked>>	62%	26179	60%	**73	100%
Vihtavuori N340	<<locked>>	61%	22887	53%	**43	100%
Vihtavuori N350	<<locked>>	61%	19522	45%	**24	98%
Winchester 231	<<locked>>	60%	34592	80%	**45	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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