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

Recommended Powder(s): ADI AP 100, ReloadSwiss RS 24

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 Maximum load data
Case Length (l3):	1.600" \| 40.6mm
Cartridge Length (C.O.L.):	1.960" \| 49.8mm
Seated Depth:	0.307" \| 7.8mm
Shank Seated Depth:	0.287" \| 7.3mm
Case Capacity:	33.6 Grains of Water \| 2.18 cm³
Primer Size:	Small Pistol (SP)
Max. allowed Pressure:	44962 psi \| 3100 bar
LID:	LID_B7478_C515
Last updated:	2025-01-01

Load data for 110 loads in caliber .357 Maximum with .357 | 158gr | H&N KS HS bullet and 55 powders such as ADI AP 100, ReloadSwiss RS 24. 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>>	86%	40059	89%	**67	100%
ADI APS 350	<<locked>>	71%	39972	89%	**91	100%
ADI APS 450	<<locked>>	71%	39581	88%	**07	100%
ADI AS 30	<<locked>>	71%	39305	87%	**40	100%
ADI AS 50N	<<locked>>	67%	40030	89%	**89	100%
[Accurate 4100]*	<<locked>>	86%	39871	89%	**39	88%
Accurate No. 2	<<locked>>	67%	40190	89%	**68	100%
Accurate No. 7	<<locked>>	66%	39494	88%	**16	97%
Accurate No. 9	<<locked>>	73%	39581	88%	**16	93%
Accurate Solo 1000	<<locked>>	68%	38421	85%	**57	100%
Accurate Solo 1250	<<locked>>	72%	39349	88%	**16	100%
Accurate TCM	<<locked>>	73%	39813	89%	**09	94%
Alliant 2400	<<locked>>	83%	39363	88%	**29	90%
Alliant BLUE DOT	<<locked>>	86%	40248	90%	**16	97%
Alliant BULLSEYE	<<locked>>	63%	39508	88%	**88	100%
Alliant POWER PISTOL	<<locked>>	70%	40466	90%	**19	100%
Alliant UNIQUE	<<locked>>	71%	38986	87%	**88	100%
Baschieri & Pellagri 100	<<locked>>	70%	39929	89%	**73	100%
Hodgdon Clays	<<locked>>	69%	38754	86%	**81	100%
[Hodgdon H110]*	<<locked>>	91%	39015	87%	**39	83%
Hodgdon LilGun	<<locked>>	93%	40451	90%	**98	91%
Hodgdon Universal	<<locked>>	67%	40016	89%	**35	100%
Hodgdon TrailBoss	<<locked>>	95%	20146	45%	**4	100%
Lovex D037.1	<<locked>>	66%	39494	88%	**16	97%
Lovex D037.2	<<locked>>	72%	38783	86%	**06	93%
Lovex S020	<<locked>>	65%	39334	87%	**45	100%
Maxam CSB 1	<<locked>>	76%	40263	90%	**19	100%
Maxam CSB 2	<<locked>>	72%	40335	90%	**19	100%
Maxam CSB 3	<<locked>>	70%	38580	86%	**83	100%
Maxam CSB 4	<<locked>>	68%	38609	86%	**63	100%
Maxam CSB 5	<<locked>>	66%	39291	87%	**27	100%
Ramshot Enforcer	<<locked>>	82%	39001	87%	**42	92%
ReloadSwiss RS 14	<<locked>>	95%	18652	41%	**4	100%
ReloadSwiss RS 20	<<locked>>	71%	38696	86%	**62	100%
ReloadSwiss RS 24 👍	<<locked>>	72%	40466	90%	**22	99%
Rottweil P 806	<<locked>>	74%	38928	87%	**80	100%
SNPE Vectan A0	<<locked>>	75%	40321	90%	**58	100%
SNPE Vectan BA 9	<<locked>>	69%	40045	89%	**25	100%
SNPE Vectan BA10	<<locked>>	65%	38406	85%	**94	100%
[SNPE Vectan BA6 1/2]*	<<locked>>	96%	25077	56%	**89	85%
SNPE Vectan BA7 1/2	<<locked>>	79%	40248	90%	**21	100%
SNPE Vectan BA9 1/2	<<locked>>	69%	39276	87%	**25	100%
Shooters World Heavy Pistol	<<locked>>	72%	38783	86%	**06	93%
Shooters World Major Pistol	<<locked>>	66%	39494	88%	**16	97%
Somchem MP200	<<locked>>	66%	40059	89%	**91	100%
Somchem MS200	<<locked>>	71%	40001	89%	**65	100%
Vihtavuori 3N37	<<locked>>	71%	38943	87%	**27	100%
Vihtavuori 3N38	<<locked>>	81%	39668	88%	**99	99%
Vihtavuori N105	<<locked>>	85%	39160	87%	**16	100%
[Vihtavuori N110]*	<<locked>>	96%	31850	71%	**37	87%
Vihtavuori N320	<<locked>>	66%	38841	86%	**70	100%
Vihtavuori N32C Tin Star	<<locked>>	91%	39218	87%	**07	100%
Vihtavuori N330	<<locked>>	67%	39784	88%	**29	100%
Vihtavuori N340	<<locked>>	71%	39972	89%	**65	100%
Vihtavuori N350	<<locked>>	73%	38508	86%	**07	100%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
ADI AP 100	<<locked>>	61%	20204	45%	**38	96%
ADI APS 350	<<locked>>	60%	31647	70%	**86	100%
ADI APS 450	<<locked>>	62%	31575	70%	**12	100%
ADI AS 30	<<locked>>	61%	31009	69%	**38	100%
ADI AS 50N	<<locked>>	61%	33750	75%	**11	100%
[Accurate 4100]*	<<locked>>	76%	27963	62%	**42	81%
Accurate No. 2	<<locked>>	61%	33301	74%	**93	100%
Accurate No. 7	<<locked>>	61%	32808	73%	**11	95%
[Accurate No. 9]*	<<locked>>	61%	24961	56%	**66	85%
Accurate Solo 1000	<<locked>>	61%	32242	72%	**81	100%
Accurate Solo 1250	<<locked>>	61%	29240	65%	**94	100%
[Accurate TCM]*	<<locked>>	61%	24976	56%	**73	87%
[Alliant 2400]*	<<locked>>	68%	23801	53%	**63	81%
[Alliant BLUE DOT]*	<<locked>>	61%	18521	41%	**12	83%
Alliant BULLSEYE	<<locked>>	61%	37275	83%	**58	100%
Alliant POWER PISTOL	<<locked>>	61%	29733	66%	**52	99%
Alliant UNIQUE	<<locked>>	61%	29385	65%	**53	100%
Baschieri & Pellagri 100	<<locked>>	61%	31546	70%	**75	100%
Hodgdon Clays	<<locked>>	60%	32227	72%	**06	100%
[Hodgdon H110]*	<<locked>>	87%	34185	76%	**67	81%
[Hodgdon LilGun]*	<<locked>>	81%	25063	56%	**35	81%
Hodgdon Universal	<<locked>>	61%	33881	75%	**60	100%
Hodgdon TrailBoss	<<locked>>	61%	9703	22%	**8	100%
Lovex D037.1	<<locked>>	61%	32808	73%	**11	95%
[Lovex D037.2]*	<<locked>>	61%	25541	57%	**83	85%
Lovex S020	<<locked>>	61%	35056	78%	**96	100%
Maxam CSB 1	<<locked>>	61%	26977	60%	**55	100%
Maxam CSB 2	<<locked>>	61%	30255	67%	**91	100%
Maxam CSB 3	<<locked>>	61%	30545	68%	**81	100%
Maxam CSB 4	<<locked>>	61%	32358	72%	**84	100%
Maxam CSB 5	<<locked>>	62%	35056	78%	**78	100%
[Ramshot Enforcer]*	<<locked>>	67%	22321	50%	**40	80%
ReloadSwiss RS 14	<<locked>>	62%	9137	20%	**1	100%
ReloadSwiss RS 20	<<locked>>	61%	29153	65%	**37	100%
ReloadSwiss RS 24	<<locked>>	61%	27528	61%	**16	95%
Rottweil P 806	<<locked>>	61%	24250	54%	**57	100%
SNPE Vectan A0	<<locked>>	61%	27499	61%	**94	100%
SNPE Vectan BA 9	<<locked>>	61%	32430	72%	**40	100%
SNPE Vectan BA10	<<locked>>	61%	34418	77%	**45	100%
[SNPE Vectan BA6 1/2]*	<<locked>>	88%	19972	44%	**81	80%
SNPE Vectan BA7 1/2	<<locked>>	61%	24207	54%	**91	100%
SNPE Vectan BA9 1/2	<<locked>>	61%	31444	70%	**30	100%
[Shooters World Heavy Pistol]*	<<locked>>	61%	25541	57%	**83	85%
Shooters World Major Pistol	<<locked>>	61%	32808	73%	**11	95%
Somchem MP200	<<locked>>	61%	34272	76%	**22	100%
Somchem MS200	<<locked>>	61%	30400	68%	**50	100%
Vihtavuori 3N37	<<locked>>	61%	28355	63%	**76	100%
Vihtavuori 3N38	<<locked>>	61%	20262	45%	**55	90%
Vihtavuori N105	<<locked>>	61%	16375	36%	**93	90%
[Vihtavuori N110]*	<<locked>>	86%	23540	52%	**76	80%
Vihtavuori N320	<<locked>>	61%	34389	76%	**17	100%
Vihtavuori N32C Tin Star	<<locked>>	61%	19479	43%	**5	100%
Vihtavuori N330	<<locked>>	61%	33460	74%	**50	100%
Vihtavuori N340	<<locked>>	61%	30023	67%	**43	100%
Vihtavuori N350	<<locked>>	61%	26107	58%	**30	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