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

Recommended Powder(s): ADI AP 100

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 Auto Magnum load data
Case Length (l3):	1.299" \| 33.0mm
Cartridge Length (C.O.L.):	1.576" \| 40.0mm
Seated Depth:	0.390" \| 9.9mm
Shank Seated Depth:	0.370" \| 9.4mm
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_B7478_C511
Last updated:	2025-01-01

Load data for 78 loads in caliber .357 Auto Magnum with .357 | 158gr | H&N KS HS 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.

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>>	78%	31720	86%	**81	100%
ADI APS 450	<<locked>>	63%	32242	87%	**45	100%
ADI AS 30	<<locked>>	64%	32590	88%	**84	100%
[Accurate 4100]*	<<locked>>	83%	33054	89%	**63	84%
Accurate No. 9	<<locked>>	70%	32663	88%	**47	90%
Accurate Solo 1000	<<locked>>	63%	32851	89%	**17	100%
Accurate Solo 1250	<<locked>>	65%	31589	85%	**50	100%
Accurate TCM	<<locked>>	70%	32721	88%	**53	92%
[Alliant 2400]*	<<locked>>	78%	31836	86%	**60	87%
Alliant BLUE DOT	<<locked>>	80%	32387	88%	**44	94%
Alliant POWER PISTOL	<<locked>>	64%	31705	86%	**17	99%
Alliant UNIQUE	<<locked>>	66%	32445	88%	**32	100%
Baschieri & Pellagri 100	<<locked>>	63%	32097	87%	**11	100%
[Hodgdon LilGun]*	<<locked>>	90%	32648	88%	**39	87%
Hodgdon TrailBoss	<<locked>>	96%	19638	53%	**1	100%
Lovex D037.2	<<locked>>	68%	31865	86%	**47	90%
Maxam CSB 1	<<locked>>	68%	31836	86%	**47	100%
Maxam CSB 2	<<locked>>	65%	32518	88%	**53	100%
Maxam CSB 3	<<locked>>	65%	32996	89%	**43	100%
Maxam CSB 4	<<locked>>	63%	32909	89%	**20	100%
[Ramshot Enforcer]*	<<locked>>	79%	31865	86%	**67	88%
ReloadSwiss RS 14	<<locked>>	96%	18144	49%	**7	100%
ReloadSwiss RS 20	<<locked>>	67%	33214	90%	**25	100%
ReloadSwiss RS 24	<<locked>>	67%	32213	87%	**40	97%
Rottweil P 806	<<locked>>	71%	33286	90%	**47	100%
SNPE Vectan A0	<<locked>>	69%	33141	90%	**02	100%
SNPE Vectan BA 9	<<locked>>	63%	33025	89%	**73	100%
[SNPE Vectan BA6 1/2]*	<<locked>>	97%	24062	65%	**12	85%
SNPE Vectan BA7 1/2	<<locked>>	72%	31952	86%	**55	100%
SNPE Vectan BA9 1/2	<<locked>>	63%	32895	89%	**80	100%
Shooters World Heavy Pistol	<<locked>>	68%	31865	86%	**47	90%
Somchem MS200	<<locked>>	65%	32677	88%	**06	100%
Vihtavuori 3N37	<<locked>>	66%	31966	86%	**68	100%
Vihtavuori 3N38	<<locked>>	77%	32924	89%	**40	98%
Vihtavuori N105	<<locked>>	81%	31604	85%	**57	99%
[Vihtavuori N110]*	<<locked>>	97%	30313	82%	**50	86%
Vihtavuori N32C Tin Star	<<locked>>	82%	31589	85%	**45	100%
Vihtavuori N340	<<locked>>	65%	32256	87%	**02	100%
Vihtavuori N350	<<locked>>	70%	33214	90%	**78	100%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
ADI AP 100	<<locked>>	61%	19102	52%	**38	95%
ADI APS 450	<<locked>>	61%	30284	82%	**22	100%
ADI AS 30	<<locked>>	61%	30429	82%	**55	100%
[Accurate 4100]*	<<locked>>	77%	27311	74%	**65	80%
[Accurate No. 9]*	<<locked>>	61%	23250	63%	**76	84%
Accurate Solo 1000	<<locked>>	61%	30806	83%	**91	100%
Accurate Solo 1250	<<locked>>	61%	27775	75%	**98	100%
[Accurate TCM]*	<<locked>>	61%	23409	63%	**73	85%
[Alliant 2400]*	<<locked>>	70%	23844	64%	**99	81%
[Alliant BLUE DOT]*	<<locked>>	61%	17521	47%	**29	83%
Alliant POWER PISTOL	<<locked>>	61%	28355	77%	**58	99%
Alliant UNIQUE	<<locked>>	61%	28761	78%	**80	100%
Baschieri & Pellagri 100	<<locked>>	61%	30211	82%	**88	100%
[Hodgdon LilGun]*	<<locked>>	83%	24308	66%	**81	81%
Hodgdon TrailBoss	<<locked>>	61%	9253	25%	**5	100%
[Lovex D037.2]*	<<locked>>	61%	23815	64%	**93	84%
Maxam CSB 1	<<locked>>	61%	26455	72%	**75	100%
Maxam CSB 2	<<locked>>	61%	28660	77%	**04	100%
Maxam CSB 3	<<locked>>	61%	29182	79%	**94	100%
Maxam CSB 4	<<locked>>	61%	30980	84%	**98	100%
[Ramshot Enforcer]*	<<locked>>	70%	22785	62%	**93	81%
ReloadSwiss RS 14	<<locked>>	62%	8659	23%	**8	100%
ReloadSwiss RS 20	<<locked>>	61%	27586	75%	**53	100%
ReloadSwiss RS 24	<<locked>>	61%	26179	71%	**22	94%
Rottweil P 806	<<locked>>	61%	22365	60%	**50	99%
SNPE Vectan A0	<<locked>>	61%	26266	71%	**01	100%
SNPE Vectan BA 9	<<locked>>	61%	31198	84%	**53	100%
[SNPE Vectan BA6 1/2]*	<<locked>>	90%	19957	54%	**11	80%
SNPE Vectan BA7 1/2	<<locked>>	61%	23076	62%	**01	100%
SNPE Vectan BA9 1/2	<<locked>>	61%	30951	84%	**47	100%
[Shooters World Heavy Pistol]*	<<locked>>	61%	23815	64%	**93	84%
Somchem MS200	<<locked>>	61%	29022	78%	**57	100%
Vihtavuori 3N37	<<locked>>	61%	27006	73%	**93	100%
[Vihtavuori 3N38]*	<<locked>>	61%	19174	52%	**61	89%
[Vihtavuori N105]*	<<locked>>	61%	15171	41%	**02	89%
[Vihtavuori N110]*	<<locked>>	89%	23511	64%	**16	81%
Vihtavuori N32C Tin Star	<<locked>>	61%	19000	51%	**1	100%
Vihtavuori N340	<<locked>>	61%	28543	77%	**50	100%
Vihtavuori N350	<<locked>>	61%	24743	67%	**40	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