Load data for .357 Magnum + .356 | 125gr | H&N KS HS HP

Recommended Powder(s): Hodgdon HS-6, Rottweil P 806, SNPE Vectan BA7 1/2, Vihtavuori 3N37

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.356 \| 125gr \| H&N KS HS HP
Bullet Weight:	125gr \| 8.1g
Bullet Diameter:	0.356" \| 9.04mm
Bullet Length:	0.580" \| 14.7mm
Caliber:	.357 Magnum load data
Case Length (l3):	1.290" \| 32.8mm
Cartridge Length (C.O.L.):	1.566" \| 39.8mm
Seated Depth:	0.304" \| 7.7mm
Shank Seated Depth:	0.284" \| 7.2mm
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_B7449_C513
Last updated:	2025-01-01

Load data for 124 loads in caliber .357 Magnum with .356 | 125gr | H&N KS HS HP bullet and 62 powders such as Hodgdon HS-6, Rottweil P 806, SNPE Vectan BA7 1/2, Vihtavuori 3N37. 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>>	96%	34418	79%	**96	97%
ADI AP 70N	<<locked>>	69%	36506	84%	**24	100%
ADI APS 350	<<locked>>	77%	38522	89%	**50	100%
ADI APS 450	<<locked>>	78%	37855	87%	**73	100%
ADI AS 30	<<locked>>	79%	36753	84%	**12	100%
ADI AS 50N	<<locked>>	78%	39146	90%	**91	100%
Accurate No. 2	<<locked>>	75%	36608	84%	**37	100%
Accurate No. 5	<<locked>>	63%	37536	86%	**49	99%
Accurate No. 7	<<locked>>	78%	36782	85%	**78	90%
[Accurate No. 9]*	<<locked>>	87%	37579	86%	**75	84%
Accurate Solo 1000	<<locked>>	78%	37666	87%	**52	100%
Accurate Solo 1250	<<locked>>	83%	37898	87%	**11	100%
[Accurate TCM]*	<<locked>>	88%	38522	89%	**81	86%
[Alliant BLUE DOT]*	<<locked>>	95%	32024	74%	**90	87%
Alliant BULLSEYE	<<locked>>	72%	36970	85%	**73	100%
Alliant POWER PISTOL	<<locked>>	84%	38914	89%	**11	98%
Alliant UNIQUE	<<locked>>	84%	38421	88%	**09	100%
Baschieri & Pellagri 100	<<locked>>	80%	38696	89%	**65	100%
Hodgdon Clays	<<locked>>	73%	36071	83%	**37	100%
Hodgdon HS-6 👍	<<locked>>	68%	37797	87%	**29	100%
Hodgdon Longshot	<<locked>>	66%	39059	90%	**32	100%
Hodgdon Universal	<<locked>>	78%	37826	87%	**34	100%
Hodgdon TrailBoss	<<locked>>	93%	13373	31%	**8	100%
Lovex D036	<<locked>>	63%	37492	86%	**49	99%
Lovex D037.1	<<locked>>	78%	36782	85%	**78	90%
[Lovex D037.2]*	<<locked>>	87%	38812	89%	**91	85%
Lovex S011	<<locked>>	67%	36506	84%	**68	100%
Lovex S020	<<locked>>	74%	36274	83%	**30	100%
Maxam CSB 1	<<locked>>	86%	36811	85%	**01	100%
Maxam CSB 2	<<locked>>	82%	36405	84%	**98	100%
Maxam CSB 3	<<locked>>	80%	36390	84%	**71	100%
Maxam CSB 4	<<locked>>	80%	38972	90%	**75	100%
Maxam CSB 5	<<locked>>	75%	38058	87%	**16	100%
Ramshot Silhouette	<<locked>>	69%	38058	87%	**99	100%
Ramshot True Blue	<<locked>>	64%	38421	88%	**19	100%
ReloadSwiss RS 12	<<locked>>	72%	36854	85%	**85	100%
ReloadSwiss RS 14	<<locked>>	94%	12111	28%	**8	100%
ReloadSwiss RS 20	<<locked>>	85%	38334	88%	**90	100%
ReloadSwiss RS 24	<<locked>>	85%	38043	87%	**88	93%
Rottweil P 801	<<locked>>	68%	38130	88%	**68	100%
Rottweil P 806 👍	<<locked>>	90%	37391	86%	**01	100%
SNPE Vectan A0	<<locked>>	86%	37971	87%	**50	100%
SNPE Vectan BA 9	<<locked>>	77%	36840	85%	**01	100%
SNPE Vectan BA10	<<locked>>	74%	39131	90%	**89	100%
SNPE Vectan BA7 1/2 👍	<<locked>>	91%	37173	85%	**96	100%
SNPE Vectan BA9 1/2	<<locked>>	78%	36782	85%	**14	100%
Shooters World Auto Pistol	<<locked>>	63%	37492	86%	**49	99%
[Shooters World Heavy Pistol]*	<<locked>>	87%	38812	89%	**91	85%
Shooters World Major Pistol	<<locked>>	78%	36782	85%	**78	90%
Somchem MP200	<<locked>>	77%	37260	86%	**76	100%
Somchem MS200	<<locked>>	81%	36782	85%	**50	100%
Somchem S221	<<locked>>	72%	37231	86%	**65	96%
Vihtavuori 3N37 👍	<<locked>>	85%	38696	89%	**39	100%
Vihtavuori 3N38	<<locked>>	95%	36042	83%	**49	93%
Vihtavuori N105	<<locked>>	97%	29544	68%	**06	94%
Vihtavuori N310	<<locked>>	63%	37449	86%	**70	100%
Vihtavuori N320	<<locked>>	77%	38566	89%	**78	100%
Vihtavuori N32C Tin Star	<<locked>>	94%	31140	72%	**14	100%
Vihtavuori N330	<<locked>>	78%	37637	86%	**34	100%
Vihtavuori N340	<<locked>>	81%	36535	84%	**53	100%
Vihtavuori N350	<<locked>>	86%	36579	84%	**12	100%
Winchester 231	<<locked>>	66%	37521	86%	**04	100%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AP 100]*	<<locked>>	62%	13053	30%	**24	81%
ADI AP 70N	<<locked>>	61%	28848	66%	**19	100%
ADI APS 350	<<locked>>	62%	27093	62%	**06	100%
ADI APS 450	<<locked>>	60%	24772	57%	**99	100%
ADI AS 30	<<locked>>	61%	23569	54%	**32	100%
ADI AS 50N	<<locked>>	62%	25962	60%	**14	100%
Accurate No. 2	<<locked>>	61%	23250	53%	**37	100%
Accurate No. 5	<<locked>>	61%	35157	81%	**12	99%
[Accurate No. 7]*	<<locked>>	64%	21582	50%	**96	80%
[Accurate No. 9]*	<<locked>>	82%	31154	72%	**76	81%
Accurate Solo 1000	<<locked>>	62%	24627	57%	**71	100%
Accurate Solo 1250	<<locked>>	62%	20711	48%	**65	100%
[Accurate TCM]*	<<locked>>	79%	28181	65%	**24	81%
[Alliant BLUE DOT]*	<<locked>>	84%	23221	53%	**19	80%
Alliant BULLSEYE	<<locked>>	61%	26789	62%	**25	100%
[Alliant POWER PISTOL]*	<<locked>>	60%	18898	43%	**24	87%
Alliant UNIQUE	<<locked>>	62%	20305	47%	**11	100%
Baschieri & Pellagri 100	<<locked>>	62%	23235	53%	**61	100%
Hodgdon Clays	<<locked>>	62%	27499	63%	**25	100%
Hodgdon HS-6	<<locked>>	61%	28863	66%	**94	98%
Hodgdon Longshot	<<locked>>	61%	32010	74%	**34	100%
Hodgdon Universal	<<locked>>	60%	23366	54%	**24	100%
Hodgdon TrailBoss	<<locked>>	60%	6338	15%	**9	99%
Lovex D036	<<locked>>	61%	35114	81%	**09	99%
[Lovex D037.1]*	<<locked>>	64%	21582	50%	**96	80%
[Lovex D037.2]*	<<locked>>	80%	30269	70%	**60	80%
Lovex S011	<<locked>>	61%	30951	71%	**99	100%
Lovex S020	<<locked>>	61%	23757	55%	**47	100%
Maxam CSB 1	<<locked>>	61%	18811	43%	**19	100%
Maxam CSB 2	<<locked>>	61%	19740	45%	**55	100%
Maxam CSB 3	<<locked>>	61%	21901	50%	**58	100%
Maxam CSB 4	<<locked>>	60%	23366	54%	**68	100%
Maxam CSB 5	<<locked>>	61%	26818	62%	**71	100%
Ramshot Silhouette	<<locked>>	61%	28660	66%	**65	100%
Ramshot True Blue	<<locked>>	61%	33736	78%	**60	100%
ReloadSwiss RS 12	<<locked>>	61%	26585	61%	**50	100%
ReloadSwiss RS 14	<<locked>>	62%	5932	14%	**2	96%
ReloadSwiss RS 20	<<locked>>	61%	18246	42%	**75	100%
[ReloadSwiss RS 24]*	<<locked>>	65%	19421	45%	**34	81%
Rottweil P 801	<<locked>>	61%	30342	70%	**73	100%
[Rottweil P 806]*	<<locked>>	61%	12328	28%	**76	85%
SNPE Vectan A0	<<locked>>	60%	18797	43%	**32	99%
SNPE Vectan BA 9	<<locked>>	61%	23395	54%	**07	100%
SNPE Vectan BA10	<<locked>>	61%	28369	65%	**55	100%
SNPE Vectan BA7 1/2	<<locked>>	60%	15534	36%	**83	91%
SNPE Vectan BA9 1/2	<<locked>>	61%	22800	52%	**07	100%
Shooters World Auto Pistol	<<locked>>	61%	35114	81%	**09	99%
[Shooters World Heavy Pistol]*	<<locked>>	80%	30269	70%	**60	80%
[Shooters World Major Pistol]*	<<locked>>	64%	21582	50%	**96	80%
Somchem MP200	<<locked>>	61%	23830	55%	**66	100%
Somchem MS200	<<locked>>	61%	21016	48%	**98	100%
Somchem S221	<<locked>>	61%	25454	59%	**55	90%
Vihtavuori 3N37	<<locked>>	61%	18202	42%	**81	95%
[Vihtavuori 3N38]*	<<locked>>	72%	17941	41%	**98	81%
[Vihtavuori N105]*	<<locked>>	78%	16056	37%	**91	82%
Vihtavuori N310	<<locked>>	60%	34069	78%	**37	100%
Vihtavuori N320	<<locked>>	61%	24685	57%	**94	100%
Vihtavuori N32C Tin Star	<<locked>>	61%	13706	31%	**2	100%
Vihtavuori N330	<<locked>>	61%	22321	51%	**14	100%
Vihtavuori N340	<<locked>>	61%	20465	47%	**91	100%
Vihtavuori N350	<<locked>>	61%	16447	38%	**29	93%
Winchester 231	<<locked>>	61%	32242	74%	**32	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