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

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 KB
Bullet Weight:	158gr \| 10.2g
Bullet Diameter:	0.357" \| 9.07mm
Bullet Length:	0.642" \| 16.3mm
Caliber:	.357 Maximum load data
Case Length (l3):	1.600" \| 40.6mm
Cartridge Length (C.O.L.):	1.960" \| 49.8mm
Seated Depth:	0.282" \| 7.2mm
Shank Seated Depth:	0.262" \| 6.7mm
Case Capacity:	33.6 Grains of Water \| 2.18 cm³
Primer Size:	Small Pistol (SP)
Max. allowed Pressure:	44962 psi \| 3100 bar
LID:	LID_B7479_C515
Last updated:	2025-01-01

Load data for 110 loads in caliber .357 Maximum with .357 | 158gr | H&N KS KB 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>>	85%	39639	88%	**67	100%
ADI APS 350	<<locked>>	71%	39972	89%	**98	100%
ADI APS 450	<<locked>>	71%	39450	88%	**11	100%
ADI AS 30	<<locked>>	70%	39247	87%	**40	100%
ADI AS 50N	<<locked>>	66%	38928	87%	**73	100%
[Accurate 4100]*	<<locked>>	85%	39755	88%	**26	88%
Accurate No. 2	<<locked>>	66%	39943	89%	**75	100%
Accurate No. 7	<<locked>>	65%	38798	86%	**06	97%
Accurate No. 9	<<locked>>	73%	39726	88%	**32	94%
Accurate Solo 1000	<<locked>>	68%	38305	85%	**60	100%
Accurate Solo 1250	<<locked>>	71%	39218	87%	**16	100%
Accurate TCM	<<locked>>	73%	39885	89%	**26	95%
Alliant 2400	<<locked>>	82%	39508	88%	**45	91%
Alliant BLUE DOT	<<locked>>	86%	40451	90%	**39	97%
Alliant BULLSEYE	<<locked>>	62%	39262	87%	**88	100%
Alliant POWER PISTOL	<<locked>>	69%	39117	87%	**93	100%
Alliant UNIQUE	<<locked>>	71%	39697	88%	**94	100%
Baschieri & Pellagri 100	<<locked>>	69%	39711	88%	**70	100%
Hodgdon Clays	<<locked>>	68%	38653	86%	**88	100%
[Hodgdon H110]*	<<locked>>	91%	40364	90%	**55	84%
Hodgdon LilGun	<<locked>>	92%	40205	89%	**98	91%
Hodgdon Universal	<<locked>>	66%	39856	89%	**32	100%
Hodgdon TrailBoss	<<locked>>	95%	20204	45%	**8	100%
Lovex D037.1	<<locked>>	65%	38798	86%	**06	97%
Lovex D037.2	<<locked>>	71%	38740	86%	**19	93%
Lovex S020	<<locked>>	65%	40190	89%	**55	100%
Maxam CSB 1	<<locked>>	74%	38972	87%	**16	100%
Maxam CSB 2	<<locked>>	71%	40089	89%	**16	100%
Maxam CSB 3	<<locked>>	70%	38435	85%	**83	100%
Maxam CSB 4	<<locked>>	68%	38479	86%	**66	100%
Maxam CSB 5	<<locked>>	66%	39262	87%	**30	100%
Ramshot Enforcer	<<locked>>	82%	38928	87%	**32	91%
ReloadSwiss RS 14	<<locked>>	97%	19406	43%	**4	100%
ReloadSwiss RS 20	<<locked>>	70%	38508	86%	**68	100%
ReloadSwiss RS 24 👍	<<locked>>	71%	39015	87%	**09	99%
Rottweil P 806	<<locked>>	73%	39218	87%	**80	100%
SNPE Vectan A0	<<locked>>	74%	40016	89%	**65	100%
SNPE Vectan BA 9	<<locked>>	68%	39740	88%	**32	100%
SNPE Vectan BA10	<<locked>>	67%	40277	90%	**20	100%
[SNPE Vectan BA6 1/2]*	<<locked>>	96%	26266	58%	**09	86%
SNPE Vectan BA7 1/2	<<locked>>	78%	39711	88%	**21	100%
SNPE Vectan BA9 1/2	<<locked>>	69%	40089	89%	**35	100%
Shooters World Heavy Pistol	<<locked>>	71%	38740	86%	**19	93%
Shooters World Major Pistol	<<locked>>	65%	38798	86%	**06	97%
Somchem MP200	<<locked>>	65%	38740	86%	**71	100%
Somchem MS200	<<locked>>	70%	39827	89%	**71	100%
Vihtavuori 3N37	<<locked>>	71%	39494	88%	**27	100%
Vihtavuori 3N38	<<locked>>	81%	39871	89%	**06	99%
Vihtavuori N105	<<locked>>	85%	39581	88%	**22	100%
[Vihtavuori N110]*	<<locked>>	96%	33417	74%	**73	88%
Vihtavuori N320	<<locked>>	65%	38682	86%	**73	100%
Vihtavuori N32C Tin Star	<<locked>>	91%	39001	87%	**04	100%
Vihtavuori N330	<<locked>>	66%	39639	88%	**25	100%
Vihtavuori N340	<<locked>>	70%	39682	88%	**68	100%
Vihtavuori N350	<<locked>>	73%	39131	87%	**24	100%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
ADI AP 100	<<locked>>	61%	20175	45%	**35	96%
ADI APS 350	<<locked>>	60%	31734	71%	**93	100%
ADI APS 450	<<locked>>	61%	31589	70%	**19	100%
ADI AS 30	<<locked>>	61%	31082	69%	**45	100%
ADI AS 50N	<<locked>>	61%	34780	77%	**30	100%
[Accurate 4100]*	<<locked>>	75%	28021	62%	**39	80%
Accurate No. 2	<<locked>>	61%	33185	74%	**93	100%
Accurate No. 7	<<locked>>	61%	33881	75%	**30	96%
[Accurate No. 9]*	<<locked>>	61%	25266	56%	**76	85%
Accurate Solo 1000	<<locked>>	61%	32300	72%	**84	100%
Accurate Solo 1250	<<locked>>	61%	29225	65%	**94	100%
[Accurate TCM]*	<<locked>>	61%	25396	56%	**73	87%
[Alliant 2400]*	<<locked>>	67%	24134	54%	**73	81%
[Alliant BLUE DOT]*	<<locked>>	61%	18927	42%	**32	84%
Alliant BULLSEYE	<<locked>>	61%	37217	83%	**58	100%
Alliant POWER PISTOL	<<locked>>	61%	30414	68%	**62	99%
Alliant UNIQUE	<<locked>>	61%	30298	67%	**70	100%
Baschieri & Pellagri 100	<<locked>>	61%	31604	70%	**78	100%
Hodgdon Clays	<<locked>>	60%	32343	72%	**12	100%
[Hodgdon H110]*	<<locked>>	87%	34156	76%	**67	81%
[Hodgdon LilGun]*	<<locked>>	80%	25092	56%	**42	81%
Hodgdon Universal	<<locked>>	61%	33910	75%	**70	100%
Hodgdon TrailBoss	<<locked>>	61%	9921	22%	**5	100%
Lovex D037.1	<<locked>>	61%	33881	75%	**30	96%
[Lovex D037.2]*	<<locked>>	61%	25846	57%	**89	86%
Lovex S020	<<locked>>	61%	35897	80%	**06	100%
Maxam CSB 1	<<locked>>	61%	27876	62%	**75	100%
Maxam CSB 2	<<locked>>	61%	30269	67%	**94	100%
Maxam CSB 3	<<locked>>	61%	30690	68%	**88	100%
Maxam CSB 4	<<locked>>	61%	32401	72%	**88	100%
Maxam CSB 5	<<locked>>	61%	35012	78%	**84	100%
[Ramshot Enforcer]*	<<locked>>	67%	22568	50%	**47	81%
ReloadSwiss RS 14	<<locked>>	60%	8934	20%	**5	100%
ReloadSwiss RS 20	<<locked>>	61%	29124	65%	**47	100%
ReloadSwiss RS 24	<<locked>>	61%	28007	62%	**19	95%
Rottweil P 806	<<locked>>	61%	24671	55%	**53	100%
SNPE Vectan A0	<<locked>>	61%	27543	61%	**98	100%
SNPE Vectan BA 9	<<locked>>	61%	32343	72%	**40	100%
SNPE Vectan BA10	<<locked>>	61%	34432	77%	**52	100%
[SNPE Vectan BA6 1/2]*	<<locked>>	87%	20189	45%	**84	80%
SNPE Vectan BA7 1/2	<<locked>>	61%	24178	54%	**88	100%
SNPE Vectan BA9 1/2	<<locked>>	61%	32387	72%	**37	100%
[Shooters World Heavy Pistol]*	<<locked>>	61%	25846	57%	**89	86%
Shooters World Major Pistol	<<locked>>	61%	33881	75%	**30	96%
Somchem MP200	<<locked>>	61%	35070	78%	**32	100%
Somchem MS200	<<locked>>	61%	30400	68%	**50	100%
Vihtavuori 3N37	<<locked>>	61%	29037	65%	**86	100%
Vihtavuori 3N38	<<locked>>	61%	20769	46%	**65	91%
Vihtavuori N105	<<locked>>	61%	16969	38%	**09	91%
[Vihtavuori N110]*	<<locked>>	86%	23830	53%	**76	80%
Vihtavuori N320	<<locked>>	61%	34360	76%	**17	100%
Vihtavuori N32C Tin Star	<<locked>>	60%	19609	44%	**1	100%
Vihtavuori N330	<<locked>>	61%	33373	74%	**57	100%
Vihtavuori N340	<<locked>>	61%	29994	67%	**43	100%
Vihtavuori N350	<<locked>>	61%	26861	60%	**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