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

Recommended Powder(s):

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.357 \| 158gr \| LOS FP
Bullet Weight:	158gr \| 10.2g
Bullet Diameter:	0.357" \| 9.07mm
Bullet Length:	0.657" \| 16.7mm
Caliber:	.357 Magnum load data
Case Length (l3):	1.290" \| 32.8mm
Cartridge Length (C.O.L.):	1.566" \| 39.8mm
Seated Depth:	0.381" \| 9.7mm
Shank Seated Depth:	0.381" \| 9.7mm
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_B3515_C513
Last updated:	2026-01-20

Load data for 122 loads in caliber .357 Magnum with .357 | 158gr | LOS FP bullet and 61 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>>	96%	38087	88%	**35	100%
ADI AP 70N	<<locked>>	66%	38609	89%	**20	100%
ADI APS 350	<<locked>>	74%	38450	88%	**60	100%
ADI APS 450	<<locked>>	76%	38783	89%	**93	100%
ADI AS 30	<<locked>>	77%	38856	89%	**25	100%
ADI AS 50N	<<locked>>	72%	37855	87%	**58	100%
Accurate No. 2	<<locked>>	73%	37434	86%	**34	100%
Accurate No. 7	<<locked>>	75%	38232	88%	**91	94%
[Accurate No. 9]*	<<locked>>	84%	39059	90%	**85	88%
Accurate Solo 1000	<<locked>>	76%	38392	88%	**52	100%
Accurate Solo 1250	<<locked>>	79%	37376	86%	**94	100%
Accurate TCM	<<locked>>	83%	38232	88%	**75	90%
[Alliant 2400]*	<<locked>>	95%	38740	89%	**11	86%
Alliant BLUE DOT	<<locked>>	97%	37942	87%	**81	93%
Alliant BULLSEYE	<<locked>>	70%	37826	87%	**63	100%
Alliant POWER PISTOL	<<locked>>	79%	38624	89%	**88	99%
Alliant Sport Pistol	<<locked>>	65%	38072	87%	**73	100%
Alliant UNIQUE	<<locked>>	80%	38522	89%	**76	100%
Baschieri & Pellagri 100	<<locked>>	75%	37724	87%	**45	100%
Baschieri & Pellagri 102 Pistol	<<locked>>	95%	38276	88%	**65	100%
Baschieri & Pellagri 103 Pistol	<<locked>>	71%	38029	87%	**71	100%
Hodgdon Clays	<<locked>>	72%	37536	86%	**56	100%
Hodgdon HS-6	<<locked>>	66%	39001	90%	**19	100%
Hodgdon Universal	<<locked>>	73%	38609	89%	**20	100%
Hodgdon CFE Pistol	<<locked>>	76%	38348	88%	**11	100%
Lovex D037.1	<<locked>>	75%	38232	88%	**91	94%
[Lovex D037.2]*	<<locked>>	83%	39059	90%	**85	88%
Lovex S011	<<locked>>	65%	37739	87%	**75	100%
Lovex S020	<<locked>>	72%	38493	88%	**34	100%
Maxam CSB 1	<<locked>>	83%	38305	88%	**98	100%
Maxam CSB 2	<<locked>>	79%	38827	89%	**04	100%
Maxam CSB 3	<<locked>>	78%	38319	88%	**78	100%
Maxam CSB 4	<<locked>>	76%	38885	89%	**61	100%
Maxam CSB 5	<<locked>>	71%	38072	87%	**12	100%
[Ramshot Enforcer]*	<<locked>>	95%	38566	89%	**17	87%
Ramshot Silhouette	<<locked>>	66%	38841	89%	**86	100%
ReloadSwiss RS 12	<<locked>>	69%	39030	90%	**91	100%
ReloadSwiss RS 20	<<locked>>	81%	38885	89%	**73	100%
ReloadSwiss RS 24	<<locked>>	82%	38740	89%	**85	96%
Rottweil P 801	<<locked>>	64%	38609	89%	**52	100%
Rottweil P 806 👍	<<locked>>	86%	38899	89%	**94	100%
SNPE Vectan A0	<<locked>>	83%	38928	89%	**43	100%
SNPE Vectan BA 9	<<locked>>	76%	38638	89%	**11	100%
SNPE Vectan BA10	<<locked>>	71%	38769	89%	**89	100%
SNPE Vectan BA7 1/2 👍	<<locked>>	87%	38014	87%	**93	100%
SNPE Vectan BA9 1/2	<<locked>>	76%	38566	89%	**11	100%
SNPE Vectan SP 2 👍	<<locked>>	74%	38464	88%	**81	100%
[Shooters World Heavy Pistol]*	<<locked>>	83%	39059	90%	**85	88%
Shooters World Major Pistol	<<locked>>	75%	38232	88%	**91	94%
Somchem MP200	<<locked>>	74%	39044	90%	**80	100%
Somchem MS200	<<locked>>	79%	39001	90%	**53	100%
Somchem S221	<<locked>>	68%	38319	88%	**55	98%
Vihtavuori 3N37	<<locked>>	80%	38247	88%	**16	100%
Vihtavuori 3N38	<<locked>>	93%	38653	89%	**68	97%
Vihtavuori N105	<<locked>>	96%	34954	80%	**68	98%
Vihtavuori N320	<<locked>>	73%	38783	89%	**65	100%
Vihtavuori N32C Tin Star	<<locked>>	97%	36593	84%	**76	100%
Vihtavuori N330	<<locked>>	74%	37913	87%	**14	100%
Vihtavuori N340	<<locked>>	79%	39146	90%	**53	100%
Vihtavuori N350 👍	<<locked>>	83%	38334	88%	**09	100%
Winchester 231	<<locked>>	64%	38754	89%	**01	100%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AP 100]*	<<locked>>	61%	15389	35%	**8	88%
ADI AP 70N	<<locked>>	60%	32634	75%	**55	100%
ADI APS 350	<<locked>>	61%	28776	66%	**1	100%
ADI APS 450	<<locked>>	60%	26774	62%	**8	100%
ADI AS 30	<<locked>>	61%	26731	61%	**8	100%
ADI AS 50N	<<locked>>	61%	28848	66%	**56	100%
Accurate No. 2	<<locked>>	62%	26571	61%	**02	100%
[Accurate No. 7]*	<<locked>>	61%	23424	54%	**55	86%
[Accurate No. 9]*	<<locked>>	71%	25106	58%	**78	80%
Accurate Solo 1000	<<locked>>	60%	26469	61%	**10	100%
Accurate Solo 1250	<<locked>>	61%	23641	54%	**24	100%
[Accurate TCM]*	<<locked>>	68%	22916	53%	**35	80%
[Alliant 2400]*	<<locked>>	85%	28819	66%	**66	80%
[Alliant BLUE DOT]*	<<locked>>	71%	18927	43%	**53	80%
Alliant BULLSEYE	<<locked>>	62%	30356	70%	**75	100%
Alliant POWER PISTOL	<<locked>>	61%	22466	52%	**25	94%
Alliant Sport Pistol	<<locked>>	61%	33678	77%	**24	100%
Alliant UNIQUE	<<locked>>	62%	24149	55%	**86	100%
Baschieri & Pellagri 100	<<locked>>	61%	26092	60%	**17	100%
Baschieri & Pellagri 102 Pistol	<<locked>>	64%	18449	42%	**9	100%
Baschieri & Pellagri 103 Pistol	<<locked>>	61%	28514	66%	**73	100%
Hodgdon Clays	<<locked>>	61%	29327	67%	**8	100%
Hodgdon HS-6	<<locked>>	61%	33779	78%	**60	100%
Hodgdon Universal	<<locked>>	60%	27253	63%	**83	100%
Hodgdon CFE Pistol	<<locked>>	60%	25440	58%	**63	100%
[Lovex D037.1]*	<<locked>>	61%	23424	54%	**55	86%
[Lovex D037.2]*	<<locked>>	70%	25106	58%	**78	80%
Lovex S011	<<locked>>	60%	33025	76%	**22	100%
Lovex S020	<<locked>>	62%	28268	65%	**15	100%
Maxam CSB 1	<<locked>>	60%	21524	49%	**8	100%
Maxam CSB 2	<<locked>>	60%	23670	54%	**20	100%
Maxam CSB 3	<<locked>>	62%	25382	58%	**27	100%
Maxam CSB 4	<<locked>>	61%	26716	61%	**27	100%
Maxam CSB 5	<<locked>>	62%	30211	69%	**24	100%
[Ramshot Enforcer]*	<<locked>>	85%	27383	63%	**50	80%
Ramshot Silhouette	<<locked>>	61%	33460	77%	**27	100%
ReloadSwiss RS 12	<<locked>>	61%	31415	72%	**09	100%
ReloadSwiss RS 20	<<locked>>	61%	21814	50%	**53	100%
[ReloadSwiss RS 24]*	<<locked>>	61%	20073	46%	**76	85%
Rottweil P 801	<<locked>>	61%	35302	81%	**19	100%
Rottweil P 806	<<locked>>	61%	16911	39%	**43	95%
SNPE Vectan A0	<<locked>>	60%	21524	49%	**10	100%
SNPE Vectan BA 9	<<locked>>	60%	25701	59%	**56	100%
SNPE Vectan BA10	<<locked>>	62%	31169	72%	**10	100%
SNPE Vectan BA7 1/2	<<locked>>	61%	19131	44%	**07	97%
SNPE Vectan BA9 1/2	<<locked>>	62%	26194	60%	**70	100%
SNPE Vectan SP 2	<<locked>>	61%	25208	58%	**84	97%
[Shooters World Heavy Pistol]*	<<locked>>	70%	25106	58%	**78	80%
[Shooters World Major Pistol]*	<<locked>>	61%	23424	54%	**55	86%
Somchem MP200	<<locked>>	61%	27093	62%	**29	100%
Somchem MS200	<<locked>>	61%	24453	56%	**66	100%
Somchem S221	<<locked>>	61%	30298	70%	**40	95%
Vihtavuori 3N37	<<locked>>	61%	21770	50%	**79	99%
[Vihtavuori 3N38]*	<<locked>>	60%	14982	34%	**8	81%
[Vihtavuori N105]*	<<locked>>	63%	12763	29%	**5	81%
Vihtavuori N320	<<locked>>	61%	27804	64%	**43	100%
Vihtavuori N32C Tin Star	<<locked>>	76%	23888	55%	**2	100%
Vihtavuori N330	<<locked>>	61%	26136	60%	**76	100%
Vihtavuori N340	<<locked>>	62%	24105	55%	**70	100%
Vihtavuori N350	<<locked>>	60%	19609	45%	**33	98%
Winchester 231	<<locked>>	61%	35578	82%	**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.

<<locked>>... you need to buy an access license to unlock the data