Load data for .357 Auto Magnum + .358 | 158gr | Speer LSWC

Recommended Powder(s): ADI AP 100

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.358 \| 158gr \| Speer LSWC
Manufacturer SKU:	4623
Bullet Weight:	158gr \| 10.2g
Bullet Diameter:	0.358" \| 9.09mm
Bullet Length:	0.660" \| 16.8mm
Caliber:	.357 Auto Magnum load data
Case Length (l3):	1.299" \| 33.0mm
Cartridge Length (C.O.L.):	1.576" \| 40.0mm
Seated Depth:	0.383" \| 9.7mm
Shank Seated Depth:	0.383" \| 9.7mm
Case Capacity:	35.0 Grains of Water \| 2.27 cm³
Primer Size:	Small Pistol Magnum (SPM)
Max. allowed Pressure:	36985 psi \| 2550 bar
LID:	LID_B6234_C511
Last updated:	2025-01-01

Load data for 78 loads in caliber .357 Auto Magnum with .358 | 158gr | Speer LSWC bullet and 39 powders such as ADI AP 100. 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.

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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>>	79%	31879	86%	**88	100%
ADI APS 450	<<locked>>	63%	32329	87%	**45	100%
ADI AS 30	<<locked>>	64%	32648	88%	**88	100%
[Accurate 4100]*	<<locked>>	83%	33156	90%	**70	84%
Accurate No. 9	<<locked>>	70%	32764	89%	**53	90%
Accurate Solo 1000	<<locked>>	63%	32982	89%	**17	100%
Accurate Solo 1250	<<locked>>	65%	31720	86%	**50	100%
Accurate TCM	<<locked>>	70%	32924	89%	**47	91%
[Alliant 2400]*	<<locked>>	79%	32619	88%	**80	87%
Alliant BLUE DOT	<<locked>>	81%	32503	88%	**47	94%
Alliant POWER PISTOL	<<locked>>	64%	31778	86%	**21	99%
Alliant UNIQUE	<<locked>>	65%	31705	86%	**19	100%
Baschieri & Pellagri 100	<<locked>>	63%	32227	87%	**14	100%
[Hodgdon LilGun]*	<<locked>>	91%	32793	89%	**45	88%
Hodgdon TrailBoss	<<locked>>	96%	19725	53%	**1	100%
Lovex D037.2	<<locked>>	69%	31966	86%	**37	90%
Maxam CSB 1	<<locked>>	68%	31981	86%	**50	100%
Maxam CSB 2	<<locked>>	65%	32605	88%	**53	100%
Maxam CSB 3	<<locked>>	66%	33127	90%	**47	100%
Maxam CSB 4	<<locked>>	63%	33040	89%	**24	100%
[Ramshot Enforcer]*	<<locked>>	79%	32068	87%	**76	88%
ReloadSwiss RS 14	<<locked>>	96%	18173	49%	**01	100%
ReloadSwiss RS 20	<<locked>>	67%	33257	90%	**29	100%
ReloadSwiss RS 24	<<locked>>	67%	32372	88%	**30	97%
Rottweil P 806	<<locked>>	70%	31981	86%	**24	100%
SNPE Vectan A0	<<locked>>	69%	33199	90%	**06	100%
SNPE Vectan BA 9	<<locked>>	63%	33156	90%	**76	100%
[SNPE Vectan BA6 1/2]*	<<locked>>	97%	24221	66%	**09	85%
SNPE Vectan BA7 1/2	<<locked>>	72%	32126	87%	**48	100%
SNPE Vectan BA9 1/2	<<locked>>	64%	33069	89%	**73	100%
Shooters World Heavy Pistol	<<locked>>	69%	31966	86%	**37	90%
Somchem MS200	<<locked>>	65%	32808	89%	**09	100%
Vihtavuori 3N37	<<locked>>	66%	32140	87%	**62	100%
Vihtavuori 3N38	<<locked>>	77%	33025	89%	**44	98%
Vihtavuori N105	<<locked>>	81%	31821	86%	**47	99%
[Vihtavuori N110]*	<<locked>>	97%	30516	83%	**57	86%
Vihtavuori N32C Tin Star	<<locked>>	82%	31734	86%	**42	100%
Vihtavuori N340	<<locked>>	65%	32430	88%	**06	100%
Vihtavuori N350	<<locked>>	68%	31502	85%	**52	100%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
ADI AP 100	<<locked>>	61%	19203	52%	**45	95%
ADI APS 450	<<locked>>	61%	30429	82%	**15	100%
ADI AS 30	<<locked>>	62%	30589	83%	**58	100%
[Accurate 4100]*	<<locked>>	78%	27514	74%	**75	80%
[Accurate No. 9]*	<<locked>>	61%	23380	63%	**70	84%
Accurate Solo 1000	<<locked>>	61%	30922	84%	**88	100%
Accurate Solo 1250	<<locked>>	61%	27847	75%	**98	100%
[Accurate TCM]*	<<locked>>	61%	23380	63%	**76	85%
[Alliant 2400]*	<<locked>>	69%	23424	63%	**89	80%
[Alliant BLUE DOT]*	<<locked>>	61%	17564	47%	**22	82%
Alliant POWER PISTOL	<<locked>>	61%	28500	77%	**62	99%
Alliant UNIQUE	<<locked>>	61%	28050	76%	**63	100%
Baschieri & Pellagri 100	<<locked>>	61%	30197	82%	**88	100%
[Hodgdon LilGun]*	<<locked>>	83%	24497	66%	**75	81%
Hodgdon TrailBoss	<<locked>>	61%	9268	25%	**8	100%
[Lovex D037.2]*	<<locked>>	61%	23946	65%	**86	84%
Maxam CSB 1	<<locked>>	62%	26571	72%	**75	100%
Maxam CSB 2	<<locked>>	61%	28776	78%	**07	100%
Maxam CSB 3	<<locked>>	61%	29283	79%	**88	100%
Maxam CSB 4	<<locked>>	61%	31038	84%	**98	100%
[Ramshot Enforcer]*	<<locked>>	70%	22858	62%	**86	81%
ReloadSwiss RS 14	<<locked>>	62%	8717	24%	**1	100%
ReloadSwiss RS 20	<<locked>>	61%	27731	75%	**50	100%
ReloadSwiss RS 24	<<locked>>	61%	26324	71%	**29	94%
Rottweil P 806	<<locked>>	61%	22495	61%	**60	100%
SNPE Vectan A0	<<locked>>	61%	26324	71%	**04	100%
SNPE Vectan BA 9	<<locked>>	61%	31285	85%	**47	100%
[SNPE Vectan BA6 1/2]*	<<locked>>	90%	20088	54%	**17	81%
SNPE Vectan BA7 1/2	<<locked>>	61%	23177	63%	**04	100%
SNPE Vectan BA9 1/2	<<locked>>	61%	31111	84%	**50	100%
[Shooters World Heavy Pistol]*	<<locked>>	61%	23946	65%	**86	84%
Somchem MS200	<<locked>>	61%	29095	79%	**50	100%
Vihtavuori 3N37	<<locked>>	61%	27151	73%	**86	100%
Vihtavuori 3N38	<<locked>>	61%	19276	52%	**68	90%
[Vihtavuori N105]*	<<locked>>	61%	15273	41%	**99	89%
[Vihtavuori N110]*	<<locked>>	89%	23598	64%	**22	81%
Vihtavuori N32C Tin Star	<<locked>>	61%	19087	52%	**5	100%
Vihtavuori N340	<<locked>>	61%	28660	77%	**53	100%
Vihtavuori N350	<<locked>>	61%	24874	67%	**43	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