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

Recommended Powder(s):

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:	<<locked>>
Caliber:	.357 Magnum load data
Case Length (l3):	1.290" \| 32.8mm
Cartridge Length (C.O.L.):	<<locked>>
Seated Depth:	<<locked>>
Shank Seated Depth:	<<locked>>
Case Capacity:	25.6 Grains of Water \| 1.66 cm³
Primer Size:	Small Pistol Magnum (SPM)
Max. allowed Pressure:	43511 psi \| 3000 bar
LID:	LID_B7479_C513
Last updated:	2026-01-22

Load data for 128 loads in caliber .357 Magnum with .357 | 158gr | H&N KS KB bullet and 64 powder(s). 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>>	97%	38232	88%	**55	100%
ADI AP 70N	<<locked>>	68%	39015	90%	**43	100%
ADI APS 350	<<locked>>	74%	37695	87%	**66	100%
ADI APS 450	<<locked>>	76%	37637	86%	**96	100%
ADI AS 30	<<locked>>	78%	38711	89%	**45	100%
ADI AS 50N	<<locked>>	75%	39073	90%	**88	100%
Accurate No. 2	<<locked>>	73%	37289	86%	**47	100%
Accurate No. 7	<<locked>>	76%	38609	89%	**11	94%
[Accurate No. 9]*	<<locked>>	85%	39044	90%	**04	89%
Accurate Solo 1000	<<locked>>	77%	38609	89%	**71	100%
Accurate Solo 1250	<<locked>>	81%	38841	89%	**24	100%
Accurate TCM	<<locked>>	84%	38421	88%	**98	90%
[Alliant 2400]*	<<locked>>	96%	38435	88%	**24	86%
Alliant BLUE DOT	<<locked>>	97%	37101	85%	**81	93%
Alliant BULLSEYE	<<locked>>	70%	37623	86%	**76	100%
Alliant POWER PISTOL	<<locked>>	80%	38667	89%	**98	99%
Alliant Sport Pistol	<<locked>>	66%	37913	87%	**86	100%
Alliant UNIQUE	<<locked>>	82%	38841	89%	**99	100%
Baschieri & Pellagri 100	<<locked>>	78%	39088	90%	**78	100%
Baschieri & Pellagri 102 Pistol	<<locked>>	96%	38696	89%	**84	100%
Baschieri & Pellagri 103 Pistol	<<locked>>	72%	37898	87%	**88	100%
Hodgdon Clays	<<locked>>	74%	38348	88%	**79	100%
Hodgdon HS-6	<<locked>>	66%	39044	90%	**39	100%
Hodgdon Longshot	<<locked>>	63%	38769	89%	**29	100%
Hodgdon Universal	<<locked>>	76%	39015	90%	**43	100%
Hodgdon CFE Pistol	<<locked>>	77%	39015	90%	**43	100%
Hodgdon TrailBoss	<<locked>>	96%	15534	36%	**6	100%
Lovex D037.1	<<locked>>	76%	38609	89%	**11	94%
[Lovex D037.2]*	<<locked>>	84%	39044	90%	**04	89%
Lovex S011	<<locked>>	66%	37898	87%	**91	100%
Lovex S020	<<locked>>	73%	37840	87%	**50	100%
Maxam CSB 1	<<locked>>	84%	37855	87%	**07	100%
Maxam CSB 2	<<locked>>	80%	37739	87%	**11	100%
Maxam CSB 3	<<locked>>	79%	38087	88%	**91	100%
Maxam CSB 4	<<locked>>	77%	38711	89%	**78	100%
Maxam CSB 5	<<locked>>	73%	38435	88%	**29	100%
[Ramshot Enforcer]*	<<locked>>	96%	38014	87%	**24	87%
Ramshot Silhouette	<<locked>>	66%	38043	87%	**89	100%
ReloadSwiss RS 12	<<locked>>	69%	37739	87%	**98	100%
ReloadSwiss RS 20	<<locked>>	81%	38101	88%	**83	100%
ReloadSwiss RS 24	<<locked>>	82%	38363	88%	**94	96%
Rottweil P 801	<<locked>>	66%	38841	89%	**81	100%
Rottweil P 806	<<locked>>	87%	38014	87%	**11	100%
SNPE Vectan A0	<<locked>>	84%	38319	88%	**50	100%
SNPE Vectan BA 9	<<locked>>	76%	38305	88%	**24	100%
SNPE Vectan BA10	<<locked>>	70%	37623	86%	**96	100%
SNPE Vectan BA7 1/2	<<locked>>	88%	38101	88%	**12	100%
SNPE Vectan BA9 1/2	<<locked>>	77%	37985	87%	**27	100%
SNPE Vectan SP 2 👍	<<locked>>	75%	37855	87%	**94	100%
[Shooters World Heavy Pistol]*	<<locked>>	84%	39044	90%	**04	89%
Shooters World Major Pistol	<<locked>>	76%	38609	89%	**11	94%
Somchem MP200	<<locked>>	74%	37985	87%	**83	100%
Somchem MS200	<<locked>>	79%	38130	88%	**60	100%
Somchem S221	<<locked>>	70%	38754	89%	**81	98%
Vihtavuori 3N37 👍	<<locked>>	81%	38276	88%	**29	100%
Vihtavuori 3N38	<<locked>>	93%	37971	87%	**85	97%
Vihtavuori N105 👍	<<locked>>	97%	34171	79%	**81	99%
Vihtavuori N310	<<locked>>	63%	38624	89%	**02	100%
Vihtavuori N320	<<locked>>	74%	38522	89%	**81	100%
Vihtavuori N32C Tin Star	<<locked>>	95%	34171	79%	**70	100%
Vihtavuori N330	<<locked>>	76%	39001	90%	**37	100%
Vihtavuori N340	<<locked>>	79%	38334	88%	**66	100%
Vihtavuori N350 👍	<<locked>>	85%	38682	89%	**25	100%
Winchester 231	<<locked>>	64%	38218	88%	**14	100%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AP 100]*	<<locked>>	62%	14402	33%	**5	87%
ADI AP 70N	<<locked>>	61%	31560	73%	**65	100%
ADI APS 350	<<locked>>	61%	28195	65%	**8	100%
ADI APS 450	<<locked>>	60%	26049	60%	**5	100%
ADI AS 30	<<locked>>	61%	25222	58%	**1	100%
ADI AS 50N	<<locked>>	61%	27093	62%	**53	100%
Accurate No. 2	<<locked>>	61%	25092	58%	**99	100%
[Accurate No. 7]*	<<locked>>	61%	21451	49%	**45	85%
[Accurate No. 9]*	<<locked>>	72%	24903	57%	**01	81%
Accurate Solo 1000	<<locked>>	60%	25425	58%	**17	100%
Accurate Solo 1250	<<locked>>	61%	21973	51%	**20	100%
[Accurate TCM]*	<<locked>>	70%	22611	52%	**52	81%
[Alliant 2400]*	<<locked>>	87%	29399	68%	**96	81%
[Alliant BLUE DOT]*	<<locked>>	73%	18869	43%	**66	80%
Alliant BULLSEYE	<<locked>>	61%	28863	66%	**75	100%
Alliant POWER PISTOL	<<locked>>	61%	21480	49%	**29	93%
Alliant Sport Pistol	<<locked>>	62%	33330	77%	**34	100%
Alliant UNIQUE	<<locked>>	61%	22060	51%	**79	100%
Baschieri & Pellagri 100	<<locked>>	61%	24569	56%	**14	100%
Baschieri & Pellagri 102 Pistol	<<locked>>	60%	14924	34%	**9	100%
Baschieri & Pellagri 103 Pistol	<<locked>>	60%	26281	60%	**60	100%
Hodgdon Clays	<<locked>>	61%	28616	66%	**4	100%
Hodgdon HS-6	<<locked>>	61%	32634	75%	**63	100%
Hodgdon Longshot	<<locked>>	61%	36129	83%	**02	100%
Hodgdon Universal	<<locked>>	61%	26295	60%	**93	100%
Hodgdon CFE Pistol	<<locked>>	61%	24700	57%	**73	100%
Hodgdon TrailBoss	<<locked>>	93%	14692	34%	**0	100%
[Lovex D037.1]*	<<locked>>	61%	21451	49%	**45	85%
[Lovex D037.2]*	<<locked>>	72%	24903	57%	**01	81%
Lovex S011	<<locked>>	61%	33098	76%	**42	100%
Lovex S020	<<locked>>	61%	26165	60%	**12	100%
Maxam CSB 1	<<locked>>	61%	21031	48%	**01	100%
Maxam CSB 2	<<locked>>	61%	22481	52%	**30	100%
Maxam CSB 3	<<locked>>	61%	24033	55%	**24	100%
Maxam CSB 4	<<locked>>	61%	25541	59%	**27	100%
Maxam CSB 5	<<locked>>	61%	28921	66%	**27	100%
[Ramshot Enforcer]*	<<locked>>	86%	26556	61%	**63	80%
Ramshot Silhouette	<<locked>>	60%	31357	72%	**17	100%
ReloadSwiss RS 12	<<locked>>	60%	28877	66%	**99	100%
ReloadSwiss RS 20	<<locked>>	60%	20146	46%	**50	100%
[ReloadSwiss RS 24]*	<<locked>>	61%	18840	43%	**66	84%
Rottweil P 801	<<locked>>	61%	32779	75%	**19	100%
Rottweil P 806	<<locked>>	61%	14243	33%	**04	92%
SNPE Vectan A0	<<locked>>	62%	21161	49%	**27	100%
SNPE Vectan BA 9	<<locked>>	61%	25338	58%	**70	100%
SNPE Vectan BA10	<<locked>>	61%	30197	69%	**10	100%
SNPE Vectan BA7 1/2	<<locked>>	61%	17289	40%	**1	96%
SNPE Vectan BA9 1/2	<<locked>>	61%	24555	56%	**66	100%
SNPE Vectan SP 2	<<locked>>	61%	23308	54%	**78	96%
[Shooters World Heavy Pistol]*	<<locked>>	72%	24903	57%	**01	81%
[Shooters World Major Pistol]*	<<locked>>	61%	21451	49%	**45	85%
Somchem MP200	<<locked>>	60%	25135	58%	**19	100%
Somchem MS200	<<locked>>	60%	22756	52%	**60	100%
Somchem S221	<<locked>>	61%	28152	65%	**30	95%
Vihtavuori 3N37	<<locked>>	62%	20610	47%	**76	98%
[Vihtavuori 3N38]*	<<locked>>	63%	14779	34%	**5	81%
[Vihtavuori N105]*	<<locked>>	66%	12212	28%	**5	80%
Vihtavuori N310	<<locked>>	61%	36854	85%	**86	100%
Vihtavuori N320	<<locked>>	60%	25962	60%	**43	100%
Vihtavuori N32C Tin Star	<<locked>>	61%	14924	34%	**3	100%
Vihtavuori N330	<<locked>>	60%	24308	56%	**70	100%
Vihtavuori N340	<<locked>>	61%	22263	51%	**60	100%
Vihtavuori N350	<<locked>>	61%	18550	43%	**30	98%
Winchester 231	<<locked>>	61%	35244	81%	**81	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