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

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

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:	2025-02-02

Load data for 122 loads in caliber .357 Magnum with .357 | 181gr | LOS FP bullet and 61 powders such as Alliant POWER PISTOL, Rottweil P 806, SNPE Vectan BA7 1/2, Somchem S221, Vihtavuori N105. 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".

Go to the bottom of the "Dashboard " page to set the measure system (imperial vs. metric)
No data yet
C.O.L. (Inch)
C.O.L. (mm)
We recommend you limit powder range to relevant brands to speed up re-calculation of results
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.
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>>	68%	40640	93%	**19	100%
ADI AS 30	<<locked>>	80%	41582	96%	**40	100%
ADI AS 50N	<<locked>>	77%	42757	98%	**89	100%
Accurate No. 2	<<locked>>	75%	40059	92%	**35	100%
Accurate No. 5	<<locked>>	63%	42685	98%	**57	100%
Accurate No. 7	<<locked>>	77%	40857	94%	**96	96%
Accurate No. 9	<<locked>>	86%	41611	96%	**96	91%
Accurate Solo 1000	<<locked>>	79%	41466	95%	**63	100%
Accurate Solo 1250	<<locked>>	81%	39682	91%	**99	100%
Accurate TCM	<<locked>>	86%	41872	96%	**96	92%
[Alliant 2400]*	<<locked>>	96%	39682	91%	**99	88%
Alliant BULLSEYE	<<locked>>	75%	43395	100%	**98	100%
Alliant POWER PISTOL 👍	<<locked>>	82%	41843	96%	**93	100%
Alliant UNIQUE	<<locked>>	82%	41220	95%	**84	100%
Baschieri & Pellagri 100	<<locked>>	77%	39523	91%	**50	100%
Hodgdon Clays	<<locked>>	76%	41263	95%	**4	100%
Hodgdon HS-6	<<locked>>	68%	42380	97%	**27	100%
Hodgdon Longshot	<<locked>>	66%	43410	100%	**27	100%
Hodgdon Universal	<<locked>>	75%	40640	93%	**19	100%
Hodgdon TrailBoss	<<locked>>	95%	17013	39%	**4	100%
Lovex D036	<<locked>>	63%	42627	98%	**57	100%
Lovex D037.1	<<locked>>	77%	40857	94%	**96	96%
Lovex D037.2	<<locked>>	85%	41611	96%	**96	91%
Lovex S011	<<locked>>	68%	41437	95%	**86	100%
Lovex S020	<<locked>>	75%	41481	95%	**42	100%
Maxam CSB 1	<<locked>>	86%	40799	94%	**06	100%
Maxam CSB 2	<<locked>>	83%	43033	99%	**19	100%
Maxam CSB 3	<<locked>>	82%	41858	96%	**89	100%
Maxam CSB 4	<<locked>>	77%	40118	92%	**60	100%
Maxam CSB 5	<<locked>>	74%	40640	93%	**24	100%
[Ramshot Enforcer]*	<<locked>>	96%	39450	91%	**02	89%
Ramshot Silhouette	<<locked>>	69%	42786	98%	**94	100%
Ramshot True Blue	<<locked>>	64%	42264	97%	**17	100%
ReloadSwiss RS 12	<<locked>>	72%	42917	99%	**02	100%
ReloadSwiss RS 14	<<locked>>	96%	16157	37%	**8	100%
ReloadSwiss RS 20	<<locked>>	83%	40625	93%	**65	100%
ReloadSwiss RS 24	<<locked>>	84%	41742	96%	**93	98%
Rottweil P 801	<<locked>>	67%	41785	96%	**70	100%
Rottweil P 806 👍	<<locked>>	87%	41060	94%	**89	100%
SNPE Vectan A0	<<locked>>	86%	42076	97%	**45	100%
SNPE Vectan BA 9	<<locked>>	78%	41684	96%	**19	100%
SNPE Vectan BA10	<<locked>>	74%	41263	95%	**04	100%
SNPE Vectan BA7 1/2 👍	<<locked>>	90%	41089	94%	**98	100%
SNPE Vectan BA9 1/2	<<locked>>	78%	40901	94%	**19	100%
Shooters World Auto Pistol	<<locked>>	63%	42627	98%	**57	100%
Shooters World Heavy Pistol	<<locked>>	85%	41611	96%	**96	91%
Shooters World Major Pistol	<<locked>>	77%	40857	94%	**96	96%
Somchem MP200	<<locked>>	77%	42322	97%	**84	100%
Somchem MS200	<<locked>>	79%	39885	92%	**38	100%
Somchem S221 👍	<<locked>>	70%	41031	94%	**57	99%
Vihtavuori 3N37	<<locked>>	83%	41162	95%	**14	100%
Vihtavuori 3N38	<<locked>>	96%	42424	97%	**86	98%
Vihtavuori N105 👍	<<locked>>	97%	35433	81%	**53	99%
Vihtavuori N310	<<locked>>	65%	42221	97%	**07	100%
Vihtavuori N320	<<locked>>	76%	42235	97%	**79	100%
Vihtavuori N32C Tin Star	<<locked>>	95%	35476	82%	**8	100%
Vihtavuori N330	<<locked>>	76%	40509	93%	**15	100%
Vihtavuori N340	<<locked>>	82%	42467	98%	**65	100%
Vihtavuori N350	<<locked>>	88%	42960	99%	**27	100%
Winchester 231	<<locked>>	67%	42815	98%	**15	100%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
ADI AP 100	<<locked>>	62%	15925	37%	**6	90%
ADI AP 70N	<<locked>>	61%	33736	78%	**50	100%
ADI AS 30	<<locked>>	62%	27325	63%	**9	100%
ADI AS 50N	<<locked>>	61%	28747	66%	**1	100%
Accurate No. 2	<<locked>>	61%	25904	60%	**4	100%
Accurate No. 5	<<locked>>	61%	39363	90%	**24	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 BULLSEYE	<<locked>>	61%	29428	68%	**50	100%
Alliant POWER PISTOL	<<locked>>	61%	22916	53%	**30	95%
Alliant UNIQUE	<<locked>>	60%	23424	54%	**4	100%
Baschieri & Pellagri 100	<<locked>>	61%	26266	60%	**9	100%
Hodgdon Clays	<<locked>>	62%	29660	68%	**6	100%
Hodgdon HS-6	<<locked>>	61%	33228	76%	**35	100%
Hodgdon Longshot	<<locked>>	61%	37014	85%	**71	100%
Hodgdon Universal	<<locked>>	61%	27644	64%	**4	100%
Hodgdon TrailBoss	<<locked>>	74%	11560	27%	**3	100%
Lovex D036	<<locked>>	61%	39320	90%	**24	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>>	62%	22539	52%	**6	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>>	61%	29617	68%	**9	100%
[Ramshot Enforcer]*	<<locked>>	82%	24961	57%	**12	80%
Ramshot Silhouette	<<locked>>	61%	33301	77%	**06	100%
Ramshot True Blue	<<locked>>	62%	38972	90%	**88	100%
ReloadSwiss RS 12	<<locked>>	62%	32227	74%	**07	100%
ReloadSwiss RS 14	<<locked>>	76%	11313	26%	**9	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>>	61%	30661	70%	**6	100%
SNPE Vectan BA7 1/2	<<locked>>	61%	19014	44%	**2	98%
SNPE Vectan BA9 1/2	<<locked>>	60%	25367	58%	**5	100%
Shooters World Auto Pistol	<<locked>>	61%	39320	90%	**24	100%
[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>>	61%	15360	35%	**6	83%
[Vihtavuori N105]*	<<locked>>	60%	11821	27%	**0	82%
Vihtavuori N310	<<locked>>	61%	38072	88%	**4	100%
Vihtavuori N320	<<locked>>	60%	27528	63%	**8	100%
Vihtavuori N32C Tin Star	<<locked>>	61%	17129	39%	**1	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