Load data for .357 Magnum + .357 | 127gr | H&N KS HP HS

Recommended Powder(s): Hodgdon HS-6, Rottweil P 806, SNPE Vectan BA7 1/2, Vihtavuori 3N37, Vihtavuori N350

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.357 \| 127gr \| H&N KS HP HS
Bullet Weight:	127gr \| 8.2g
Bullet Diameter:	0.357" \| 9.07mm
Bullet Length:	0.587" \| 14.9mm
Caliber:	.357 Magnum load data
Case Length (l3):	1.290" \| 32.8mm
Cartridge Length (C.O.L.):	1.566" \| 39.8mm
Seated Depth:	0.311" \| 7.9mm
Shank Seated Depth:	0.311" \| 7.9mm
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_B7468_C513
Last updated:	2025-02-02

Load data for 122 loads in caliber .357 Magnum with .357 | 127gr | H&N KS HP HS bullet and 61 powders such as Hodgdon HS-6, 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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Use the Personalized Load Calculator to customize loads to your own specific requirements. Find more details in the help section.

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%	32692	75%	**47	97%
ADI AP 70N	<<locked>>	74%	42424	98%	**70	100%
ADI AS 30	<<locked>>	86%	42540	98%	**62	100%
ADI AS 50N	<<locked>>	81%	42105	97%	**01	100%
Accurate No. 2	<<locked>>	78%	39914	92%	**63	100%
Accurate No. 5	<<locked>>	67%	43410	100%	**98	100%
Accurate No. 7	<<locked>>	82%	42757	98%	**40	93%
[Accurate No. 9]*	<<locked>>	90%	41234	95%	**01	86%
Accurate Solo 1000	<<locked>>	82%	40640	93%	**68	100%
Accurate Solo 1250	<<locked>>	87%	41104	94%	**30	100%
[Accurate TCM]*	<<locked>>	90%	42119	97%	**24	88%
Alliant BULLSEYE	<<locked>>	78%	42902	99%	**32	100%
Alliant POWER PISTOL	<<locked>>	87%	42003	97%	**40	99%
Alliant UNIQUE	<<locked>>	88%	41350	95%	**19	100%
Baschieri & Pellagri 100	<<locked>>	84%	41959	96%	**85	100%
Hodgdon Clays	<<locked>>	81%	42293	97%	**86	100%
Hodgdon HP38	<<locked>>	63%	43453	100%	**37	100%
Hodgdon HS-6 👍	<<locked>>	71%	40770	94%	**52	100%
Hodgdon Longshot	<<locked>>	68%	42279	97%	**55	100%
Hodgdon Universal	<<locked>>	82%	42424	98%	**70	100%
Hodgdon TrailBoss	<<locked>>	95%	13895	32%	**8	100%
Lovex D036	<<locked>>	67%	43352	100%	**98	100%
Lovex D037.1	<<locked>>	82%	42757	98%	**40	93%
[Lovex D037.2]*	<<locked>>	89%	41234	95%	**01	86%
Lovex S011	<<locked>>	72%	42757	98%	**21	100%
Lovex S020	<<locked>>	80%	42830	98%	**90	100%
Maxam CSB 1	<<locked>>	92%	42641	98%	**44	100%
Maxam CSB 2	<<locked>>	88%	42380	97%	**50	100%
Maxam CSB 3	<<locked>>	87%	42322	97%	**17	100%
Maxam CSB 4	<<locked>>	82%	40408	93%	**71	100%
Maxam CSB 5	<<locked>>	78%	41060	94%	**32	100%
Ramshot Silhouette	<<locked>>	72%	41118	95%	**19	100%
Ramshot True Blue	<<locked>>	67%	41568	96%	**42	100%
Ramshot Zip	<<locked>>	63%	41916	96%	**27	100%
ReloadSwiss RS 12	<<locked>>	77%	42888	99%	**40	100%
ReloadSwiss RS 14	<<locked>>	93%	11850	27%	**2	100%
ReloadSwiss RS 20	<<locked>>	89%	41611	96%	**09	100%
ReloadSwiss RS 24	<<locked>>	88%	41350	95%	**24	95%
Rottweil P 801	<<locked>>	71%	41147	95%	**81	100%
Rottweil P 806 👍	<<locked>>	93%	40959	94%	**34	100%
SNPE Vectan A0	<<locked>>	90%	40901	94%	**63	100%
SNPE Vectan BA 9	<<locked>>	83%	42641	98%	**47	100%
SNPE Vectan BA10	<<locked>>	78%	42235	97%	**02	100%
SNPE Vectan BA7 1/2 👍	<<locked>>	96%	42743	98%	**52	100%
SNPE Vectan BA9 1/2	<<locked>>	85%	42685	98%	**60	100%
Shooters World Auto Pistol	<<locked>>	67%	43352	100%	**98	100%
[Shooters World Heavy Pistol]*	<<locked>>	89%	41234	95%	**01	86%
Shooters World Major Pistol	<<locked>>	82%	42757	98%	**40	93%
Somchem MP200	<<locked>>	82%	43192	99%	**26	100%
Somchem MS200	<<locked>>	87%	42467	98%	**96	100%
Somchem S221	<<locked>>	75%	41640	96%	**04	97%
Vihtavuori 3N37 👍	<<locked>>	88%	41930	96%	**62	100%
Vihtavuori 3N38	<<locked>>	96%	36941	85%	**35	94%
Vihtavuori N105	<<locked>>	95%	27905	64%	**53	93%
Vihtavuori N310	<<locked>>	68%	42221	97%	**06	100%
Vihtavuori N320	<<locked>>	80%	41829	96%	**91	100%
Vihtavuori N32C Tin Star	<<locked>>	95%	31024	71%	**94	100%
Vihtavuori N330	<<locked>>	81%	40944	94%	**47	100%
Vihtavuori N340	<<locked>>	87%	42830	98%	**06	100%
Vihtavuori N350 👍	<<locked>>	92%	42757	98%	**65	100%
Winchester 231	<<locked>>	71%	43482	100%	**47	100%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AP 100]*	<<locked>>	61%	12981	30%	**10	81%
ADI AP 70N	<<locked>>	61%	28732	66%	**96	100%
ADI AS 30	<<locked>>	60%	23192	53%	**09	100%
ADI AS 50N	<<locked>>	62%	25686	59%	**94	100%
Accurate No. 2	<<locked>>	61%	23061	53%	**11	99%
Accurate No. 5	<<locked>>	61%	35476	82%	**99	99%
[Accurate No. 7]*	<<locked>>	65%	21915	50%	**96	81%
[Accurate No. 9]*	<<locked>>	81%	30023	69%	**44	80%
Accurate Solo 1000	<<locked>>	61%	24323	56%	**52	100%
Accurate Solo 1250	<<locked>>	62%	20436	47%	**45	100%
[Accurate TCM]*	<<locked>>	79%	28703	66%	**11	81%
Alliant BULLSEYE	<<locked>>	61%	26585	61%	**09	100%
[Alliant POWER PISTOL]*	<<locked>>	61%	18826	43%	**04	87%
Alliant UNIQUE	<<locked>>	61%	20102	46%	**88	100%
Baschieri & Pellagri 100	<<locked>>	62%	23032	53%	**45	100%
Hodgdon Clays	<<locked>>	61%	27021	62%	**02	100%
Hodgdon HP38	<<locked>>	61%	40408	93%	**11	100%
Hodgdon HS-6	<<locked>>	61%	29153	67%	**85	98%
Hodgdon Longshot	<<locked>>	61%	32358	74%	**24	100%
Hodgdon Universal	<<locked>>	62%	24236	56%	**27	100%
Hodgdon TrailBoss	<<locked>>	62%	6541	15%	**9	100%
Lovex D036	<<locked>>	61%	35418	81%	**99	99%
[Lovex D037.1]*	<<locked>>	65%	21915	50%	**96	81%
[Lovex D037.2]*	<<locked>>	80%	30023	69%	**44	80%
Lovex S011	<<locked>>	61%	30777	71%	**76	100%
Lovex S020	<<locked>>	61%	23612	54%	**34	100%
Maxam CSB 1	<<locked>>	61%	18536	43%	**99	100%
Maxam CSB 2	<<locked>>	60%	19508	45%	**38	100%
Maxam CSB 3	<<locked>>	61%	21567	50%	**38	100%
Maxam CSB 4	<<locked>>	62%	24178	56%	**65	100%
Maxam CSB 5	<<locked>>	61%	26426	61%	**48	100%
Ramshot Silhouette	<<locked>>	61%	28790	66%	**48	100%
Ramshot True Blue	<<locked>>	61%	33953	78%	**47	100%
Ramshot Zip	<<locked>>	60%	38972	90%	**01	100%
ReloadSwiss RS 12	<<locked>>	61%	26353	61%	**34	100%
ReloadSwiss RS 14	<<locked>>	60%	5729	13%	**2	95%
ReloadSwiss RS 20	<<locked>>	60%	18072	42%	**52	100%
[ReloadSwiss RS 24]*	<<locked>>	65%	19435	45%	**20	81%
Rottweil P 801	<<locked>>	61%	30182	69%	**57	100%
[Rottweil P 806]*	<<locked>>	61%	12459	29%	**73	86%
SNPE Vectan A0	<<locked>>	60%	18608	43%	**15	99%
SNPE Vectan BA 9	<<locked>>	61%	23279	53%	**94	100%
SNPE Vectan BA10	<<locked>>	61%	28079	65%	**35	100%
SNPE Vectan BA7 1/2	<<locked>>	60%	15476	36%	**70	91%
SNPE Vectan BA9 1/2	<<locked>>	61%	22597	52%	**88	100%
Shooters World Auto Pistol	<<locked>>	61%	35418	81%	**99	99%
[Shooters World Heavy Pistol]*	<<locked>>	80%	30023	69%	**44	80%
[Shooters World Major Pistol]*	<<locked>>	65%	21915	50%	**96	81%
Somchem MP200	<<locked>>	62%	23685	54%	**53	100%
Somchem MS200	<<locked>>	61%	20900	48%	**81	100%
[Somchem S221]*	<<locked>>	61%	24758	57%	**19	89%
Vihtavuori 3N37	<<locked>>	61%	18188	42%	**61	95%
[Vihtavuori 3N38]*	<<locked>>	73%	18072	42%	**78	80%
[Vihtavuori N105]*	<<locked>>	76%	14939	34%	**42	80%
Vihtavuori N310	<<locked>>	62%	35375	81%	**37	100%
Vihtavuori N320	<<locked>>	61%	24323	56%	**75	100%
Vihtavuori N32C Tin Star	<<locked>>	61%	13373	31%	**2	100%
Vihtavuori N330	<<locked>>	61%	22104	51%	**98	100%
Vihtavuori N340	<<locked>>	61%	20305	47%	**75	100%
Vihtavuori N350	<<locked>>	61%	16375	38%	**19	94%
Winchester 231	<<locked>>	61%	32111	74%	**19	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