Load data for .357 Magnum + .357 | 181gr | LOS FP

Recommended Powder(s):

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.357 \| 181gr \| LOS FP
Bullet Weight:	181gr \| 11.7g
Bullet Diameter:	0.357" \| 9.07mm
Bullet Length:	0.728" \| 18.5mm
Caliber:	.357 Magnum load data
Case Length (l3):	1.290" \| 32.8mm
Cartridge Length (C.O.L.):	1.566" \| 39.8mm
Seated Depth:	0.452" \| 11.5mm
Shank Seated Depth:	0.452" \| 11.5mm
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_B3517_C513
Last updated:	2026-01-21

Load data for 122 loads in caliber .357 Magnum with .357 | 181gr | 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%	38450	88%	**14	100%
ADI AP 70N	<<locked>>	66%	38769	89%	**02	100%
ADI APS 350	<<locked>>	74%	38290	88%	**1	100%
ADI APS 450	<<locked>>	75%	37594	86%	**4	100%
ADI AS 30	<<locked>>	75%	37768	87%	**04	100%
ADI AS 50N	<<locked>>	71%	37115	85%	**37	100%
Accurate No. 2	<<locked>>	73%	38101	88%	**19	100%
Accurate No. 7	<<locked>>	74%	38043	87%	**63	95%
Accurate No. 9	<<locked>>	83%	38595	89%	**63	90%
Accurate Solo 1000	<<locked>>	75%	37507	86%	**30	100%
Accurate Solo 1250	<<locked>>	79%	37710	87%	**79	100%
Accurate TCM	<<locked>>	83%	38580	89%	**60	91%
[Alliant 2400]*	<<locked>>	95%	38522	89%	**80	87%
Alliant BLUE DOT	<<locked>>	96%	37594	86%	**47	94%
Alliant BULLSEYE	<<locked>>	69%	37913	87%	**45	100%
Alliant POWER PISTOL 👍	<<locked>>	79%	38508	89%	**57	100%
Alliant Sport Pistol	<<locked>>	65%	38421	88%	**55	100%
Alliant UNIQUE	<<locked>>	79%	37840	87%	**52	100%
Baschieri & Pellagri 100	<<locked>>	75%	37594	86%	**33	100%
Baschieri & Pellagri 102 Pistol	<<locked>>	94%	38392	88%	**53	100%
Baschieri & Pellagri 103 Pistol	<<locked>>	72%	38986	90%	**66	100%
Hodgdon Clays	<<locked>>	74%	39030	90%	**5	100%
Hodgdon HS-6	<<locked>>	66%	39131	90%	**01	100%
Hodgdon Universal	<<locked>>	73%	38769	89%	**02	100%
Hodgdon CFE Pistol	<<locked>>	75%	37855	87%	**93	100%
Lovex D037.1	<<locked>>	74%	38043	87%	**63	95%
Lovex D037.2	<<locked>>	83%	38595	89%	**63	90%
Lovex S011	<<locked>>	64%	37521	86%	**53	100%
Lovex S020	<<locked>>	71%	37652	87%	**09	100%
Maxam CSB 1	<<locked>>	84%	39160	90%	**86	100%
Maxam CSB 2	<<locked>>	78%	37623	86%	**73	100%
Maxam CSB 3	<<locked>>	78%	38247	88%	**60	100%
Maxam CSB 4	<<locked>>	75%	38087	88%	**43	100%
Maxam CSB 5	<<locked>>	72%	38711	89%	**07	100%
[Ramshot Enforcer]*	<<locked>>	95%	37927	87%	**89	88%
Ramshot Silhouette	<<locked>>	65%	37956	87%	**52	100%
ReloadSwiss RS 12	<<locked>>	67%	37347	86%	**56	100%
ReloadSwiss RS 20	<<locked>>	81%	38798	89%	**52	100%
ReloadSwiss RS 24	<<locked>>	82%	38638	89%	**60	97%
Rottweil P 801	<<locked>>	64%	38276	88%	**40	100%
Rottweil P 806 👍	<<locked>>	85%	37927	87%	**63	100%
SNPE Vectan A0	<<locked>>	83%	38624	89%	**19	100%
SNPE Vectan BA 9	<<locked>>	75%	38464	88%	**93	100%
SNPE Vectan BA10	<<locked>>	70%	37579	86%	**4	100%
SNPE Vectan BA7 1/2	<<locked>>	87%	37927	87%	**68	100%
SNPE Vectan BA9 1/2	<<locked>>	77%	39160	90%	**02	100%
SNPE Vectan SP 2 👍	<<locked>>	74%	38638	89%	**57	100%
Shooters World Heavy Pistol	<<locked>>	83%	38595	89%	**63	90%
Shooters World Major Pistol	<<locked>>	74%	38043	87%	**63	95%
Somchem MP200	<<locked>>	74%	38943	89%	**52	100%
Somchem MS200	<<locked>>	78%	38218	88%	**25	100%
Somchem S221 👍	<<locked>>	68%	38058	87%	**30	99%
Vihtavuori 3N37	<<locked>>	80%	37913	87%	**88	100%
Vihtavuori 3N38	<<locked>>	93%	39073	90%	**50	98%
Vihtavuori N105 👍	<<locked>>	97%	35433	81%	**53	99%
Vihtavuori N320	<<locked>>	72%	38174	88%	**47	100%
Vihtavuori N32C Tin Star	<<locked>>	97%	36869	85%	**1	100%
Vihtavuori N330	<<locked>>	74%	38595	89%	**99	100%
Vihtavuori N340	<<locked>>	78%	38682	89%	**29	100%
Vihtavuori N350	<<locked>>	83%	37971	87%	**81	100%
Winchester 231	<<locked>>	62%	37449	86%	**70	100%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
ADI AP 100	<<locked>>	67%	18391	42%	**2	93%
ADI AP 70N	<<locked>>	61%	33736	78%	**50	100%
ADI APS 350	<<locked>>	72%	36492	84%	**5	100%
ADI APS 450	<<locked>>	68%	32329	74%	**2	100%
ADI AS 30	<<locked>>	66%	30748	71%	**5	100%
ADI AS 50N	<<locked>>	61%	28747	66%	**1	100%
Accurate No. 2	<<locked>>	61%	25904	60%	**4	100%
[Accurate No. 7]*	<<locked>>	61%	23714	55%	**63	88%
[Accurate No. 9]*	<<locked>>	68%	22655	52%	**37	80%
Accurate Solo 1000	<<locked>>	62%	27427	63%	**8	100%
Accurate Solo 1250	<<locked>>	61%	23670	54%	**5	100%
[Accurate TCM]*	<<locked>>	65%	20943	48%	**01	80%
[Alliant 2400]*	<<locked>>	83%	27398	63%	**38	81%
[Alliant BLUE DOT]*	<<locked>>	68%	17738	41%	**5	81%
Alliant BULLSEYE	<<locked>>	61%	29428	68%	**50	100%
Alliant POWER PISTOL	<<locked>>	61%	22916	53%	**30	95%
Alliant Sport Pistol	<<locked>>	61%	33547	77%	**02	100%
Alliant UNIQUE	<<locked>>	60%	23424	54%	**4	100%
Baschieri & Pellagri 100	<<locked>>	63%	27630	63%	**5	100%
Baschieri & Pellagri 102 Pistol	<<locked>>	76%	25309	58%	**5	100%
Baschieri & Pellagri 103 Pistol	<<locked>>	61%	28326	65%	**5	100%
Hodgdon Clays	<<locked>>	69%	35128	81%	**8	100%
Hodgdon HS-6	<<locked>>	61%	33228	76%	**35	100%
Hodgdon Universal	<<locked>>	61%	27644	64%	**4	100%
Hodgdon CFE Pistol	<<locked>>	61%	26252	60%	**8	100%
[Lovex D037.1]*	<<locked>>	61%	23714	55%	**63	88%
[Lovex D037.2]*	<<locked>>	67%	22655	52%	**37	80%
Lovex S011	<<locked>>	61%	33837	78%	**20	100%
Lovex S020	<<locked>>	61%	27775	64%	**04	100%
Maxam CSB 1	<<locked>>	64%	23888	55%	**5	100%
Maxam CSB 2	<<locked>>	60%	23685	54%	**2	100%
Maxam CSB 3	<<locked>>	61%	25498	59%	**5	100%
Maxam CSB 4	<<locked>>	61%	26556	61%	**5	100%
Maxam CSB 5	<<locked>>	63%	31270	72%	**5	100%
[Ramshot Enforcer]*	<<locked>>	82%	24961	57%	**12	80%
Ramshot Silhouette	<<locked>>	61%	33301	77%	**06	100%
ReloadSwiss RS 12	<<locked>>	62%	32227	74%	**07	100%
ReloadSwiss RS 20	<<locked>>	62%	22568	52%	**5	100%
[ReloadSwiss RS 24]*	<<locked>>	61%	20146	46%	**4	87%
Rottweil P 801	<<locked>>	61%	34911	80%	**10	100%
Rottweil P 806	<<locked>>	61%	17390	40%	**5	97%
SNPE Vectan A0	<<locked>>	61%	21814	50%	**9	100%
SNPE Vectan BA 9	<<locked>>	61%	26600	61%	**5	100%
SNPE Vectan BA10	<<locked>>	63%	32300	74%	**2	100%
SNPE Vectan BA7 1/2	<<locked>>	63%	19827	46%	**8	98%
SNPE Vectan BA9 1/2	<<locked>>	60%	25367	58%	**5	100%
SNPE Vectan SP 2	<<locked>>	61%	24860	57%	**79	98%
[Shooters World Heavy Pistol]*	<<locked>>	67%	22655	52%	**37	80%
[Shooters World Major Pistol]*	<<locked>>	61%	23714	55%	**63	88%
Somchem MP200	<<locked>>	61%	27267	63%	**20	100%
Somchem MS200	<<locked>>	61%	24976	57%	**4	100%
Somchem S221	<<locked>>	61%	30226	69%	**29	96%
Vihtavuori 3N37	<<locked>>	61%	22017	51%	**4	99%
[Vihtavuori 3N38]*	<<locked>>	65%	17506	40%	**5	86%
[Vihtavuori N105]*	<<locked>>	69%	15577	36%	**8	88%
Vihtavuori N320	<<locked>>	60%	27528	63%	**8	100%
Vihtavuori N32C Tin Star	<<locked>>	90%	32489	75%	**2	100%
Vihtavuori N330	<<locked>>	62%	26789	62%	**1	100%
Vihtavuori N340	<<locked>>	61%	23380	54%	**8	100%
Vihtavuori N350	<<locked>>	62%	20378	47%	**1	99%
Winchester 231	<<locked>>	61%	35665	82%	**53	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