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

Recommended Powder(s): ADI AP 100, Rottweil P 806, SNPE Vectan BA7 1/2, Vihtavuori N350

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.357 \| 158gr \| LOS HP
Bullet Weight:	158gr \| 10.2g
Bullet Diameter:	0.357" \| 9.07mm
Bullet Length:	0.661" \| 16.8mm
Caliber:	.357 Magnum load data
Case Length (l3):	1.290" \| 32.8mm
Cartridge Length (C.O.L.):	1.566" \| 39.8mm
Seated Depth:	0.385" \| 9.8mm
Shank Seated Depth:	0.385" \| 9.8mm
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_B3516_C513
Last updated:	2025-02-02

Load data for 110 loads in caliber .357 Magnum with .357 | 158gr | LOS HP bullet and 55 powders such as ADI AP 100, Rottweil P 806, SNPE Vectan BA7 1/2, 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>>	95%	37014	85%	**22	99%
ADI AP 70N	<<locked>>	67%	38928	89%	**20	100%
ADI AS 30	<<locked>>	78%	39160	90%	**29	100%
ADI AS 50N	<<locked>>	72%	38159	88%	**61	100%
Accurate No. 2	<<locked>>	73%	37971	87%	**34	100%
Accurate No. 7	<<locked>>	74%	37391	86%	**81	94%
[Accurate No. 9]*	<<locked>>	82%	37072	85%	**68	88%
Accurate Solo 1000	<<locked>>	76%	38754	89%	**55	100%
Accurate Solo 1250	<<locked>>	79%	37811	87%	**94	100%
Accurate TCM	<<locked>>	84%	38653	89%	**85	90%
[Alliant 2400]*	<<locked>>	94%	37971	87%	**01	85%
Alliant BULLSEYE	<<locked>>	70%	37811	87%	**66	100%
Alliant POWER PISTOL	<<locked>>	80%	39088	90%	**85	99%
Alliant UNIQUE	<<locked>>	80%	38870	89%	**83	100%
Baschieri & Pellagri 100	<<locked>>	76%	38014	87%	**48	100%
Hodgdon Clays	<<locked>>	71%	36216	83%	**43	100%
Hodgdon HS-6	<<locked>>	65%	38189	88%	**09	100%
Hodgdon Universal	<<locked>>	74%	38928	89%	**20	100%
Hodgdon TrailBoss	<<locked>>	97%	17434	40%	**6	100%
Lovex D037.1	<<locked>>	74%	37391	86%	**81	94%
[Lovex D037.2]*	<<locked>>	83%	38276	88%	**78	88%
Lovex S011	<<locked>>	64%	36506	84%	**58	100%
Lovex S020	<<locked>>	73%	39102	90%	**40	100%
Maxam CSB 1	<<locked>>	82%	37376	86%	**84	100%
Maxam CSB 2	<<locked>>	78%	37521	86%	**88	100%
Maxam CSB 3	<<locked>>	79%	38580	89%	**81	100%
Maxam CSB 4	<<locked>>	76%	39030	90%	**65	100%
Maxam CSB 5	<<locked>>	72%	38580	89%	**09	100%
[Ramshot Enforcer]*	<<locked>>	94%	36303	83%	**85	85%
Ramshot Silhouette	<<locked>>	65%	37855	87%	**76	100%
ReloadSwiss RS 12	<<locked>>	68%	37594	86%	**71	100%
ReloadSwiss RS 14	<<locked>>	92%	14997	34%	**0	100%
ReloadSwiss RS 20	<<locked>>	80%	37492	86%	**57	100%
ReloadSwiss RS 24	<<locked>>	82%	39088	90%	**81	96%
Rottweil P 801	<<locked>>	65%	38609	89%	**55	100%
Rottweil P 806 👍	<<locked>>	84%	36912	85%	**75	100%
SNPE Vectan A0	<<locked>>	81%	36318	83%	**11	100%
SNPE Vectan BA 9	<<locked>>	76%	39146	90%	**14	100%
SNPE Vectan BA10	<<locked>>	72%	39088	90%	**96	100%
SNPE Vectan BA7 1/2 👍	<<locked>>	86%	37173	85%	**83	100%
SNPE Vectan BA9 1/2	<<locked>>	77%	38783	89%	**14	100%
[Shooters World Heavy Pistol]*	<<locked>>	83%	38276	88%	**78	88%
Shooters World Major Pistol	<<locked>>	74%	37391	86%	**81	94%
Somchem MP200	<<locked>>	73%	37768	87%	**63	100%
Somchem MS200	<<locked>>	77%	37623	86%	**40	100%
Somchem S221	<<locked>>	69%	38754	89%	**62	98%
Vihtavuori 3N37	<<locked>>	81%	38566	89%	**12	100%
Vihtavuori 3N38	<<locked>>	92%	37724	87%	**55	96%
Vihtavuori N105	<<locked>>	96%	33866	78%	**65	98%
Vihtavuori N320	<<locked>>	72%	37362	86%	**52	100%
Vihtavuori N32C Tin Star	<<locked>>	95%	35433	81%	**63	100%
Vihtavuori N330	<<locked>>	74%	38479	88%	**14	100%
Vihtavuori N340	<<locked>>	76%	36318	83%	**24	100%
Vihtavuori N350 👍	<<locked>>	84%	38653	89%	**06	100%
Winchester 231	<<locked>>	64%	39073	90%	**01	100%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AP 100]*	<<locked>>	61%	15505	36%	**8	88%
ADI AP 70N	<<locked>>	61%	32895	76%	**52	100%
ADI AS 30	<<locked>>	61%	26745	61%	**8	100%
ADI AS 50N	<<locked>>	62%	29080	67%	**56	100%
Accurate No. 2	<<locked>>	60%	25527	59%	**86	100%
[Accurate No. 7]*	<<locked>>	61%	22640	52%	**45	85%
[Accurate No. 9]*	<<locked>>	71%	24395	56%	**71	80%
Accurate Solo 1000	<<locked>>	61%	26629	61%	**14	100%
Accurate Solo 1250	<<locked>>	62%	23627	54%	**27	100%
[Accurate TCM]*	<<locked>>	69%	23917	55%	**58	81%
[Alliant 2400]*	<<locked>>	86%	29167	67%	**66	80%
Alliant BULLSEYE	<<locked>>	60%	29037	67%	**58	100%
Alliant POWER PISTOL	<<locked>>	61%	22481	52%	**29	94%
Alliant UNIQUE	<<locked>>	61%	23264	53%	**70	100%
Baschieri & Pellagri 100	<<locked>>	62%	26252	60%	**17	100%
Hodgdon Clays	<<locked>>	62%	29501	68%	**8	100%
Hodgdon HS-6	<<locked>>	61%	32750	75%	**43	100%
Hodgdon Universal	<<locked>>	61%	27499	63%	**86	100%
Hodgdon TrailBoss	<<locked>>	66%	9776	22%	**6	100%
[Lovex D037.1]*	<<locked>>	61%	22640	52%	**45	85%
[Lovex D037.2]*	<<locked>>	71%	25585	59%	**91	81%
Lovex S011	<<locked>>	61%	33199	76%	**25	100%
Lovex S020	<<locked>>	61%	27253	63%	**02	100%
Maxam CSB 1	<<locked>>	61%	21538	49%	**1	100%
Maxam CSB 2	<<locked>>	61%	23670	54%	**24	100%
Maxam CSB 3	<<locked>>	60%	24337	56%	**10	100%
Maxam CSB 4	<<locked>>	62%	27021	62%	**30	100%
Maxam CSB 5	<<locked>>	60%	28906	66%	**07	100%
[Ramshot Enforcer]*	<<locked>>	86%	27746	64%	**60	81%
Ramshot Silhouette	<<locked>>	61%	32314	74%	**11	100%
ReloadSwiss RS 12	<<locked>>	61%	31734	73%	**09	100%
ReloadSwiss RS 14	<<locked>>	61%	8441	19%	**3	100%
ReloadSwiss RS 20	<<locked>>	61%	22118	51%	**60	100%
[ReloadSwiss RS 24]*	<<locked>>	61%	20407	47%	**76	86%
Rottweil P 801	<<locked>>	62%	35737	82%	**25	100%
Rottweil P 806	<<locked>>	61%	16984	39%	**43	95%
SNPE Vectan A0	<<locked>>	61%	21683	50%	**17	100%
SNPE Vectan BA 9	<<locked>>	61%	25889	60%	**60	100%
SNPE Vectan BA10	<<locked>>	60%	29805	69%	**1	100%
SNPE Vectan BA7 1/2	<<locked>>	60%	18362	42%	**1	96%
SNPE Vectan BA9 1/2	<<locked>>	60%	25222	58%	**53	100%
[Shooters World Heavy Pistol]*	<<locked>>	71%	25585	59%	**91	81%
[Shooters World Major Pistol]*	<<locked>>	61%	22640	52%	**45	85%
Somchem MP200	<<locked>>	62%	27441	63%	**29	100%
Somchem MS200	<<locked>>	61%	24613	57%	**73	100%
Somchem S221	<<locked>>	61%	29341	67%	**30	95%
Vihtavuori 3N37	<<locked>>	61%	21785	50%	**76	99%
[Vihtavuori 3N38]*	<<locked>>	61%	15142	35%	**1	81%
[Vihtavuori N105]*	<<locked>>	63%	12691	29%	**5	81%
Vihtavuori N320	<<locked>>	61%	27789	64%	**47	100%
Vihtavuori N32C Tin Star	<<locked>>	61%	16882	39%	**7	100%
Vihtavuori N330	<<locked>>	61%	26368	61%	**79	100%
Vihtavuori N340	<<locked>>	60%	23163	53%	**53	100%
Vihtavuori N350	<<locked>>	61%	19609	45%	**30	98%
Winchester 231	<<locked>>	61%	36013	83%	**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.