Load data for .357 SIG + .357 | 158gr | H&N KS HS

Recommended Powder(s): Alliant UNIQUE, Hodgdon Longshot, ReloadSwiss RS 20, Somchem MS200, Vihtavuori N340

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.357 \| 158gr \| H&N KS HS
Bullet Weight:	158gr \| 10.2g
Bullet Diameter:	0.357" \| 9.07mm
Bullet Length:	0.667" \| 16.9mm
Caliber:	.357 SIG load data
Case Length (l3):	0.860" \| 21.8mm
Cartridge Length (C.O.L.):	1.123" \| 28.5mm
Seated Depth:	0.404" \| 10.3mm
Shank Seated Depth:	0.384" \| 9.8mm
Case Capacity:	19.5 Grains of Water \| 1.27 cm³
Primer Size:	Small Pistol (SP)
Max. allowed Pressure:	44237 psi \| 3050 bar
LID:	LID_B7478_C518
Last updated:	2025-01-01

Load data for 114 loads in caliber .357 SIG with .357 | 158gr | H&N KS HS bullet and 57 powders such as Alliant UNIQUE, Hodgdon Longshot, ReloadSwiss RS 20, Somchem MS200, Vihtavuori N340. 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>>	95%	23322	53%	**17	90%
ADI AP 70N	<<locked>>	82%	38986	88%	**35	100%
ADI APS 350	<<locked>>	85%	38566	87%	**1	100%
ADI APS 450	<<locked>>	88%	39363	89%	**1	100%
ADI AS 30	<<locked>>	92%	39276	89%	**37	100%
ADI AS 50N	<<locked>>	88%	38682	87%	**73	100%
Accurate No. 2	<<locked>>	88%	39711	90%	**35	100%
Accurate No. 5	<<locked>>	73%	39624	90%	**24	98%
[Accurate No. 7]*	<<locked>>	92%	38043	86%	**53	88%
Accurate Solo 1000	<<locked>>	89%	38508	87%	**50	100%
Accurate Solo 1250	<<locked>>	94%	36999	84%	**93	100%
Alliant BULLSEYE	<<locked>>	85%	38885	88%	**75	100%
Alliant POWER PISTOL	<<locked>>	96%	37449	85%	**50	96%
Alliant UNIQUE 👍	<<locked>>	96%	36405	82%	**65	100%
Baschieri & Pellagri 100	<<locked>>	91%	39146	89%	**60	100%
Hodgdon Clays	<<locked>>	85%	39102	88%	**5	100%
Hodgdon HP38	<<locked>>	67%	38218	86%	**93	100%
Hodgdon HS-6	<<locked>>	78%	37855	86%	**91	99%
Hodgdon Longshot 👍	<<locked>>	75%	38290	87%	**94	100%
Hodgdon TiteGroup	<<locked>>	63%	39131	88%	**47	100%
Hodgdon Universal	<<locked>>	91%	38986	88%	**35	100%
Lovex D036	<<locked>>	73%	39566	89%	**24	98%
[Lovex D037.1]*	<<locked>>	92%	38043	86%	**53	88%
Lovex S011	<<locked>>	78%	39088	88%	**79	100%
Lovex S020	<<locked>>	89%	39755	90%	**45	100%
Maxam CSB 1	<<locked>>	95%	34360	78%	**66	100%
Maxam CSB 2	<<locked>>	96%	36260	82%	**99	100%
Maxam CSB 3	<<locked>>	95%	39276	89%	**89	100%
Maxam CSB 4	<<locked>>	91%	38580	87%	**66	100%
Maxam CSB 5	<<locked>>	84%	37811	85%	**14	100%
Ramshot Silhouette	<<locked>>	79%	37782	85%	**71	100%
Ramshot True Blue	<<locked>>	75%	39247	89%	**94	100%
Ramshot Zip	<<locked>>	69%	39421	89%	**06	100%
ReloadSwiss RS 12	<<locked>>	84%	37304	84%	**99	100%
ReloadSwiss RS 20 👍	<<locked>>	95%	34011	77%	**38	100%
ReloadSwiss RS 24	<<locked>>	96%	35346	80%	**14	90%
Rottweil P 801	<<locked>>	81%	39610	90%	**86	100%
Rottweil P 806	<<locked>>	95%	24540	55%	**45	97%
SNPE Vectan A0	<<locked>>	96%	35868	81%	**06	100%
SNPE Vectan BA 9	<<locked>>	89%	37956	86%	**99	100%
SNPE Vectan BA10	<<locked>>	82%	39349	89%	**1	100%
SNPE Vectan BA7 1/2	<<locked>>	96%	30632	69%	**96	98%
SNPE Vectan BA9 1/2	<<locked>>	93%	39436	89%	**22	100%
Shooters World Auto Pistol	<<locked>>	73%	39566	89%	**24	98%
[Shooters World Major Pistol]*	<<locked>>	92%	38043	86%	**53	88%
Somchem MP200	<<locked>>	89%	37855	86%	**65	100%
Somchem MS200 👍	<<locked>>	95%	38595	87%	**45	100%
Somchem S221	<<locked>>	85%	39494	89%	**40	94%
Vihtavuori 3N37	<<locked>>	96%	36492	82%	**88	100%
[Vihtavuori 3N38]*	<<locked>>	95%	23380	53%	**47	84%
Vihtavuori N310	<<locked>>	73%	38551	87%	**1	100%
Vihtavuori N320	<<locked>>	87%	37304	84%	**63	100%
Vihtavuori N32C Tin Star	<<locked>>	95%	23525	53%	**6	100%
Vihtavuori N330	<<locked>>	92%	39479	89%	**35	100%
Vihtavuori N340 👍	<<locked>>	96%	39392	89%	**55	100%
Vihtavuori N350	<<locked>>	97%	33939	77%	**55	100%
Winchester 231	<<locked>>	77%	39421	89%	**06	100%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AP 100]*	<<locked>>	74%	13561	31%	**3	80%
ADI AP 70N	<<locked>>	62%	21886	49%	**8	100%
ADI APS 350	<<locked>>	63%	23177	52%	**4	100%
ADI APS 450	<<locked>>	61%	20740	47%	**4	100%
ADI AS 30	<<locked>>	62%	18695	42%	**7	100%
ADI AS 50N	<<locked>>	61%	19014	43%	**6	100%
Accurate No. 2	<<locked>>	61%	17129	39%	**0	96%
Accurate No. 5	<<locked>>	62%	25831	58%	**56	94%
[Accurate No. 7]*	<<locked>>	80%	24918	56%	**93	81%
Accurate Solo 1000	<<locked>>	60%	18739	42%	**3	100%
Accurate Solo 1250	<<locked>>	62%	15200	34%	**3	100%
Alliant BULLSEYE	<<locked>>	61%	20001	45%	**8	100%
[Alliant POWER PISTOL]*	<<locked>>	64%	14968	34%	**3	81%
Alliant UNIQUE	<<locked>>	60%	13808	31%	**0	96%
Baschieri & Pellagri 100	<<locked>>	62%	17521	40%	**0	100%
Hodgdon Clays	<<locked>>	63%	23409	53%	**4	100%
Hodgdon HP38	<<locked>>	61%	31198	71%	**24	100%
Hodgdon HS-6	<<locked>>	61%	20291	46%	**1	92%
Hodgdon Longshot	<<locked>>	61%	23308	53%	**10	96%
Hodgdon TiteGroup	<<locked>>	61%	36303	82%	**27	100%
Hodgdon Universal	<<locked>>	60%	17013	38%	**9	100%
Lovex D036	<<locked>>	62%	25802	58%	**56	94%
[Lovex D037.1]*	<<locked>>	80%	24918	56%	**93	81%
Lovex S011	<<locked>>	60%	22858	52%	**2	100%
Lovex S020	<<locked>>	61%	16607	38%	**3	99%
Maxam CSB 1	<<locked>>	60%	13184	30%	**8	99%
Maxam CSB 2	<<locked>>	61%	13431	30%	**7	100%
Maxam CSB 3	<<locked>>	61%	16418	37%	**7	100%
Maxam CSB 4	<<locked>>	62%	18840	43%	**0	100%
Maxam CSB 5	<<locked>>	62%	21190	48%	**6	100%
Ramshot Silhouette	<<locked>>	61%	20914	47%	**1	98%
Ramshot True Blue	<<locked>>	61%	23902	54%	**14	96%
Ramshot Zip	<<locked>>	61%	29863	68%	**17	100%
ReloadSwiss RS 12	<<locked>>	61%	18405	42%	**9	100%
ReloadSwiss RS 20	<<locked>>	61%	12502	28%	**4	97%
[ReloadSwiss RS 24]*	<<locked>>	79%	20653	47%	**01	80%
Rottweil P 801	<<locked>>	60%	21973	50%	**9	100%
[Rottweil P 806]*	<<locked>>	71%	10037	23%	**0	81%
SNPE Vectan A0	<<locked>>	61%	13967	32%	**4	95%
SNPE Vectan BA 9	<<locked>>	61%	17535	40%	**6	100%
SNPE Vectan BA10	<<locked>>	60%	22727	51%	**7	100%
[SNPE Vectan BA7 1/2]*	<<locked>>	60%	11066	25%	**5	83%
SNPE Vectan BA9 1/2	<<locked>>	60%	16128	36%	**3	100%
Shooters World Auto Pistol	<<locked>>	62%	25802	58%	**56	94%
[Shooters World Major Pistol]*	<<locked>>	80%	24918	56%	**93	81%
Somchem MP200	<<locked>>	60%	16389	37%	**3	97%
Somchem MS200	<<locked>>	62%	16215	37%	**6	98%
[Somchem S221]*	<<locked>>	61%	17245	39%	**9	81%
[Vihtavuori 3N37]*	<<locked>>	62%	12720	29%	**7	88%
[Vihtavuori 3N38]*	<<locked>>	89%	19334	44%	**4	80%
Vihtavuori N310	<<locked>>	61%	27224	62%	**9	100%
Vihtavuori N320	<<locked>>	60%	17216	39%	**3	100%
Vihtavuori N32C Tin Star	<<locked>>	60%	9311	21%	**9	100%
Vihtavuori N330	<<locked>>	62%	16128	36%	**9	100%
Vihtavuori N340	<<locked>>	61%	14576	33%	**3	97%
[Vihtavuori N350]*	<<locked>>	61%	11197	25%	**4	85%
Winchester 231	<<locked>>	61%	23917	54%	**1	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