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

Recommended Powder(s): ADI AP 100, Rottweil P 806, SNPE Vectan BA7 1/2, Vihtavuori 3N37, Vihtavuori N350

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 Magnum load data
Case Length (l3):	1.290" \| 32.8mm
Cartridge Length (C.O.L.):	1.566" \| 39.8mm
Seated Depth:	0.391" \| 9.9mm
Shank Seated Depth:	0.371" \| 9.4mm
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_B7478_C513
Last updated:	2025-02-02

Load data for 122 loads in caliber .357 Magnum with .357 | 158gr | H&N KS HS bullet and 61 powders such as ADI AP 100, Rottweil P 806, SNPE Vectan BA7 1/2, Vihtavuori 3N37, Vihtavuori N350. 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>>	94%	35230	81%	**09	99%
ADI AP 70N	<<locked>>	72%	42772	98%	**73	100%
ADI AS 30	<<locked>>	81%	40785	94%	**55	100%
ADI AS 50N	<<locked>>	79%	42844	98%	**17	100%
Accurate No. 2	<<locked>>	76%	39827	92%	**66	100%
Accurate No. 5	<<locked>>	63%	40843	94%	**75	100%
Accurate No. 7	<<locked>>	79%	41365	95%	**37	95%
[Accurate No. 9]*	<<locked>>	87%	40785	94%	**17	89%
Accurate Solo 1000	<<locked>>	80%	40698	94%	**81	100%
Accurate Solo 1250	<<locked>>	86%	42757	98%	**57	100%
Accurate TCM	<<locked>>	88%	41495	95%	**27	91%
[Alliant 2400]*	<<locked>>	96%	37449	86%	**98	85%
Alliant BULLSEYE	<<locked>>	76%	43120	99%	**32	100%
Alliant POWER PISTOL	<<locked>>	85%	42743	98%	**47	100%
Alliant UNIQUE	<<locked>>	86%	42714	98%	**32	100%
Baschieri & Pellagri 100	<<locked>>	83%	43236	99%	**04	100%
Hodgdon Clays	<<locked>>	79%	42177	97%	**09	100%
Hodgdon HS-6	<<locked>>	69%	41611	96%	**62	100%
Hodgdon Longshot	<<locked>>	67%	42859	99%	**58	100%
Hodgdon Universal	<<locked>>	80%	42772	98%	**73	100%
Hodgdon TrailBoss	<<locked>>	94%	14489	33%	**3	100%
Lovex D036	<<locked>>	63%	40785	94%	**75	100%
Lovex D037.1	<<locked>>	79%	41365	95%	**37	95%
[Lovex D037.2]*	<<locked>>	86%	40785	94%	**17	89%
Lovex S011	<<locked>>	70%	41858	96%	**17	100%
Lovex S020	<<locked>>	76%	40161	92%	**60	100%
Maxam CSB 1	<<locked>>	89%	41655	96%	**40	100%
Maxam CSB 2	<<locked>>	85%	41307	95%	**37	100%
Maxam CSB 3	<<locked>>	82%	40132	92%	**04	100%
Maxam CSB 4	<<locked>>	80%	40814	94%	**88	100%
Maxam CSB 5	<<locked>>	77%	42163	97%	**58	100%
[Ramshot Enforcer]*	<<locked>>	96%	35853	82%	**94	86%
Ramshot Silhouette	<<locked>>	70%	41858	96%	**25	100%
Ramshot True Blue	<<locked>>	65%	41843	96%	**42	100%
ReloadSwiss RS 12	<<locked>>	74%	41481	95%	**27	100%
ReloadSwiss RS 14	<<locked>>	92%	12517	29%	**0	100%
ReloadSwiss RS 20	<<locked>>	86%	41959	96%	**12	100%
ReloadSwiss RS 24	<<locked>>	87%	42453	98%	**34	97%
Rottweil P 801	<<locked>>	70%	42540	98%	**04	100%
Rottweil P 806 👍	<<locked>>	90%	40988	94%	**37	100%
SNPE Vectan A0	<<locked>>	87%	40538	93%	**63	100%
SNPE Vectan BA 9	<<locked>>	79%	40538	93%	**37	100%
SNPE Vectan BA10	<<locked>>	75%	41379	95%	**22	100%
SNPE Vectan BA7 1/2 👍	<<locked>>	93%	41989	96%	**42	100%
SNPE Vectan BA9 1/2	<<locked>>	81%	41640	96%	**53	100%
Shooters World Auto Pistol	<<locked>>	63%	40785	94%	**75	100%
[Shooters World Heavy Pistol]*	<<locked>>	86%	40785	94%	**17	89%
Shooters World Major Pistol	<<locked>>	79%	41365	95%	**37	95%
Somchem MP200	<<locked>>	79%	41843	96%	**12	100%
Somchem MS200	<<locked>>	84%	42003	97%	**89	100%
Somchem S221	<<locked>>	74%	42656	98%	**21	99%
Vihtavuori 3N37 👍	<<locked>>	86%	42337	97%	**62	100%
Vihtavuori 3N38	<<locked>>	97%	40712	94%	**04	97%
Vihtavuori N105	<<locked>>	95%	31183	72%	**35	98%
Vihtavuori N310	<<locked>>	65%	40625	93%	**12	100%
Vihtavuori N320	<<locked>>	79%	42467	98%	**07	100%
Vihtavuori N32C Tin Star	<<locked>>	95%	33011	76%	**53	100%
Vihtavuori N330	<<locked>>	81%	43192	99%	**66	100%
Vihtavuori N340	<<locked>>	82%	40741	94%	**80	100%
Vihtavuori N350 👍	<<locked>>	90%	42888	99%	**58	100%
Winchester 231	<<locked>>	67%	40248	92%	**24	100%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AP 100]*	<<locked>>	61%	13735	32%	**9	86%
ADI AP 70N	<<locked>>	61%	30371	70%	**38	100%
ADI AS 30	<<locked>>	61%	24947	57%	**1	100%
ADI AS 50N	<<locked>>	61%	27021	62%	**47	100%
Accurate No. 2	<<locked>>	60%	23917	55%	**73	100%
Accurate No. 5	<<locked>>	61%	37782	87%	**35	100%
[Accurate No. 7]*	<<locked>>	61%	21132	49%	**29	84%
[Accurate No. 9]*	<<locked>>	73%	24743	57%	**84	80%
Accurate Solo 1000	<<locked>>	61%	25251	58%	**07	100%
Accurate Solo 1250	<<locked>>	62%	21872	50%	**10	100%
[Accurate TCM]*	<<locked>>	71%	23279	54%	**55	81%
[Alliant 2400]*	<<locked>>	90%	30327	70%	**02	81%
Alliant BULLSEYE	<<locked>>	60%	27470	63%	**42	100%
Alliant POWER PISTOL	<<locked>>	61%	20624	47%	**99	92%
Alliant UNIQUE	<<locked>>	60%	20900	48%	**50	100%
Baschieri & Pellagri 100	<<locked>>	62%	24482	56%	**07	100%
Hodgdon Clays	<<locked>>	62%	28384	65%	**5	100%
Hodgdon HS-6	<<locked>>	61%	30792	71%	**30	100%
Hodgdon Longshot	<<locked>>	61%	34214	79%	**73	100%
Hodgdon Universal	<<locked>>	61%	25063	58%	**70	100%
Hodgdon TrailBoss	<<locked>>	69%	8456	19%	**9	100%
Lovex D036	<<locked>>	61%	37840	87%	**35	100%
[Lovex D037.1]*	<<locked>>	61%	21132	49%	**29	84%
[Lovex D037.2]*	<<locked>>	73%	24743	57%	**84	80%
Lovex S011	<<locked>>	60%	31778	73%	**15	100%
Lovex S020	<<locked>>	60%	24889	57%	**83	100%
Maxam CSB 1	<<locked>>	60%	19725	45%	**4	100%
Maxam CSB 2	<<locked>>	60%	21147	49%	**07	100%
Maxam CSB 3	<<locked>>	60%	22655	52%	**01	100%
Maxam CSB 4	<<locked>>	61%	25338	58%	**17	100%
Maxam CSB 5	<<locked>>	62%	28703	66%	**17	100%
[Ramshot Enforcer]*	<<locked>>	90%	28689	66%	**93	81%
Ramshot Silhouette	<<locked>>	60%	30516	70%	**98	100%
Ramshot True Blue	<<locked>>	61%	36172	83%	**86	100%
ReloadSwiss RS 12	<<locked>>	61%	28848	66%	**96	100%
ReloadSwiss RS 14	<<locked>>	67%	7382	17%	**3	100%
ReloadSwiss RS 20	<<locked>>	61%	20030	46%	**40	100%
[ReloadSwiss RS 24]*	<<locked>>	61%	18188	42%	**43	83%
Rottweil P 801	<<locked>>	61%	32909	76%	**12	100%
Rottweil P 806	<<locked>>	61%	13822	32%	**8	92%
SNPE Vectan A0	<<locked>>	61%	20146	46%	**01	100%
SNPE Vectan BA 9	<<locked>>	61%	24294	56%	**50	100%
SNPE Vectan BA10	<<locked>>	60%	28718	66%	**1	100%
SNPE Vectan BA7 1/2	<<locked>>	62%	17289	40%	**1	95%
SNPE Vectan BA9 1/2	<<locked>>	62%	24584	57%	**56	100%
Shooters World Auto Pistol	<<locked>>	61%	37840	87%	**35	100%
[Shooters World Heavy Pistol]*	<<locked>>	73%	24743	57%	**84	80%
[Shooters World Major Pistol]*	<<locked>>	61%	21132	49%	**29	84%
Somchem MP200	<<locked>>	61%	25338	58%	**19	100%
Somchem MS200	<<locked>>	61%	22698	52%	**56	100%
Somchem S221	<<locked>>	61%	27789	64%	**14	94%
Vihtavuori 3N37	<<locked>>	61%	19798	46%	**56	98%
[Vihtavuori 3N38]*	<<locked>>	66%	15519	36%	**4	82%
[Vihtavuori N105]*	<<locked>>	69%	12836	30%	**5	81%
Vihtavuori N310	<<locked>>	61%	36811	85%	**76	100%
Vihtavuori N320	<<locked>>	61%	25788	59%	**33	100%
Vihtavuori N32C Tin Star	<<locked>>	61%	14707	34%	**4	100%
Vihtavuori N330	<<locked>>	61%	24279	56%	**66	100%
Vihtavuori N340	<<locked>>	60%	21089	48%	**33	100%
Vihtavuori N350	<<locked>>	61%	17666	41%	**07	97%
Winchester 231	<<locked>>	61%	34098	78%	**58	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