Load data for .357 Magnum + .357 | 170gr | Sierra JHC SportsMaster

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 \| 170gr \| Sierra JHC SportsMaster
Manufacturer SKU:	8365
Bullet Weight:	170gr \| 11.0g
Bullet Diameter:	0.357" \| 9.07mm
Bullet Length:	0.740" \| 18.8mm
Caliber:	.357 Magnum load data
Case Length (l3):	1.290" \| 32.8mm
Cartridge Length (C.O.L.):	1.566" \| 39.8mm
Seated Depth:	0.464" \| 11.8mm
Shank Seated Depth:	0.464" \| 11.8mm
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_B5950_C513
Last updated:	2025-02-02

Load data for 122 loads in caliber .357 Magnum with .357 | 170gr | Sierra JHC SportsMaster 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>>	96%	35998	83%	**30	99%
ADI AP 70N	<<locked>>	71%	41727	96%	**68	100%
ADI AS 30	<<locked>>	84%	43076	99%	**89	100%
ADI AS 50N	<<locked>>	77%	40277	93%	**02	100%
Accurate No. 2	<<locked>>	76%	39755	91%	**75	100%
Accurate No. 5	<<locked>>	63%	40030	92%	**70	100%
Accurate No. 7	<<locked>>	79%	41336	95%	**45	95%
Accurate No. 9	<<locked>>	89%	41800	96%	**39	90%
Accurate Solo 1000	<<locked>>	83%	43149	99%	**15	100%
Accurate Solo 1250	<<locked>>	85%	41017	94%	**45	100%
Accurate TCM	<<locked>>	89%	42032	97%	**29	91%
[Alliant 2400]*	<<locked>>	97%	36854	85%	**99	85%
Alliant BULLSEYE	<<locked>>	76%	42757	98%	**34	100%
Alliant POWER PISTOL	<<locked>>	85%	42206	97%	**35	100%
Alliant UNIQUE	<<locked>>	84%	40248	92%	**14	100%
Baschieri & Pellagri 100	<<locked>>	81%	40901	94%	**96	100%
Hodgdon Clays	<<locked>>	81%	43381	100%	**37	100%
Hodgdon HS-6	<<locked>>	71%	43381	100%	**80	100%
Hodgdon Longshot	<<locked>>	66%	40814	94%	**50	100%
Hodgdon Universal	<<locked>>	79%	41727	96%	**68	100%
Hodgdon TrailBoss	<<locked>>	97%	16099	37%	**4	100%
Lovex D036	<<locked>>	63%	39987	92%	**70	100%
Lovex D037.1	<<locked>>	79%	41336	95%	**45	95%
Lovex D037.2	<<locked>>	88%	41800	96%	**39	90%
Lovex S011	<<locked>>	71%	43047	99%	**38	100%
Lovex S020	<<locked>>	78%	42685	98%	**94	100%
Maxam CSB 1	<<locked>>	90%	42134	97%	**55	100%
Maxam CSB 2	<<locked>>	85%	41959	96%	**55	100%
Maxam CSB 3	<<locked>>	86%	43381	100%	**42	100%
Maxam CSB 4	<<locked>>	79%	39711	91%	**96	100%
Maxam CSB 5	<<locked>>	78%	42264	97%	**70	100%
[Ramshot Enforcer]*	<<locked>>	97%	36129	83%	**06	86%
Ramshot Silhouette	<<locked>>	69%	40466	93%	**17	100%
Ramshot True Blue	<<locked>>	65%	41350	95%	**50	100%
ReloadSwiss RS 12	<<locked>>	72%	39813	91%	**22	100%
ReloadSwiss RS 14	<<locked>>	95%	14315	33%	**1	100%
ReloadSwiss RS 20	<<locked>>	86%	41423	95%	**14	100%
ReloadSwiss RS 24	<<locked>>	87%	42540	98%	**45	97%
Rottweil P 801	<<locked>>	71%	42815	98%	**22	100%
Rottweil P 806 👍	<<locked>>	90%	40596	93%	**32	100%
SNPE Vectan A0	<<locked>>	90%	43279	99%	**01	100%
SNPE Vectan BA 9	<<locked>>	82%	42989	99%	**71	100%
SNPE Vectan BA10	<<locked>>	78%	43424	100%	**56	100%
SNPE Vectan BA7 1/2 👍	<<locked>>	94%	42105	97%	**50	100%
SNPE Vectan BA9 1/2	<<locked>>	80%	40422	93%	**48	100%
Shooters World Auto Pistol	<<locked>>	63%	39987	92%	**70	100%
Shooters World Heavy Pistol	<<locked>>	88%	41800	96%	**39	90%
Shooters World Major Pistol	<<locked>>	79%	41336	95%	**45	95%
Somchem MP200	<<locked>>	80%	43497	100%	**37	100%
Somchem MS200	<<locked>>	83%	41118	94%	**91	100%
Somchem S221	<<locked>>	73%	41379	95%	**06	99%
Vihtavuori 3N37 👍	<<locked>>	86%	41887	96%	**63	100%
Vihtavuori 3N38	<<locked>>	96%	39378	90%	**89	97%
Vihtavuori N105	<<locked>>	96%	30792	71%	**40	98%
Vihtavuori N310	<<locked>>	64%	39697	91%	**24	100%
Vihtavuori N320	<<locked>>	78%	41756	96%	**12	100%
Vihtavuori N32C Tin Star	<<locked>>	94%	33054	76%	**4	100%
Vihtavuori N330	<<locked>>	80%	41394	95%	**65	100%
Vihtavuori N340	<<locked>>	84%	41568	96%	**94	100%
Vihtavuori N350 👍	<<locked>>	88%	40089	92%	**40	100%
Winchester 231	<<locked>>	67%	40422	93%	**35	100%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AP 100]*	<<locked>>	61%	14344	33%	**0	87%
ADI AP 70N	<<locked>>	61%	31154	72%	**63	100%
ADI AS 30	<<locked>>	61%	25251	58%	**6	100%
ADI AS 50N	<<locked>>	60%	26469	61%	**1	100%
Accurate No. 2	<<locked>>	62%	25237	58%	**14	100%
Accurate No. 5	<<locked>>	61%	36854	85%	**34	100%
[Accurate No. 7]*	<<locked>>	62%	21451	49%	**56	84%
[Accurate No. 9]*	<<locked>>	75%	26266	60%	**32	81%
Accurate Solo 1000	<<locked>>	61%	25498	59%	**8	100%
Accurate Solo 1250	<<locked>>	61%	21466	49%	**2	100%
[Accurate TCM]*	<<locked>>	72%	24207	56%	**96	82%
[Alliant 2400]*	<<locked>>	89%	29254	67%	**94	80%
Alliant BULLSEYE	<<locked>>	62%	28790	66%	**79	100%
Alliant POWER PISTOL	<<locked>>	61%	20697	48%	**27	92%
Alliant UNIQUE	<<locked>>	62%	22481	52%	**7	100%
Baschieri & Pellagri 100	<<locked>>	61%	24018	55%	**5	100%
Hodgdon Clays	<<locked>>	61%	27702	64%	**3	100%
Hodgdon HS-6	<<locked>>	61%	30980	71%	**48	100%
Hodgdon Longshot	<<locked>>	61%	34650	80%	**84	100%
Hodgdon Universal	<<locked>>	60%	25251	58%	**4	100%
Hodgdon TrailBoss	<<locked>>	75%	10878	25%	**9	100%
Lovex D036	<<locked>>	61%	36811	85%	**34	100%
[Lovex D037.1]*	<<locked>>	62%	21451	49%	**56	84%
[Lovex D037.2]*	<<locked>>	74%	26266	60%	**32	81%
Lovex S011	<<locked>>	60%	31604	73%	**33	100%
Lovex S020	<<locked>>	61%	25338	58%	**14	100%
Maxam CSB 1	<<locked>>	61%	20595	47%	**5	100%
Maxam CSB 2	<<locked>>	61%	22495	52%	**8	100%
Maxam CSB 3	<<locked>>	61%	23250	53%	**2	100%
Maxam CSB 4	<<locked>>	62%	25918	60%	**1	100%
Maxam CSB 5	<<locked>>	60%	27485	63%	**8	100%
[Ramshot Enforcer]*	<<locked>>	90%	28601	66%	**98	81%
Ramshot Silhouette	<<locked>>	61%	30995	71%	**15	100%
Ramshot True Blue	<<locked>>	61%	35012	80%	**84	100%
ReloadSwiss RS 12	<<locked>>	61%	29443	68%	**20	100%
ReloadSwiss RS 14	<<locked>>	74%	9805	23%	**3	100%
ReloadSwiss RS 20	<<locked>>	61%	20334	47%	**1	100%
[ReloadSwiss RS 24]*	<<locked>>	61%	18333	42%	**8	84%
Rottweil P 801	<<locked>>	60%	32213	74%	**20	100%
Rottweil P 806	<<locked>>	62%	15214	35%	**8	94%
SNPE Vectan A0	<<locked>>	60%	20044	46%	**5	100%
SNPE Vectan BA 9	<<locked>>	61%	24613	57%	**4	100%
SNPE Vectan BA10	<<locked>>	60%	28950	67%	**9	100%
SNPE Vectan BA7 1/2	<<locked>>	61%	17405	40%	**9	96%
SNPE Vectan BA9 1/2	<<locked>>	62%	24685	57%	**8	100%
Shooters World Auto Pistol	<<locked>>	61%	36811	85%	**34	100%
[Shooters World Heavy Pistol]*	<<locked>>	74%	26266	60%	**32	81%
[Shooters World Major Pistol]*	<<locked>>	62%	21451	49%	**56	84%
Somchem MP200	<<locked>>	61%	25077	58%	**30	100%
Somchem MS200	<<locked>>	61%	22887	53%	**1	100%
Somchem S221	<<locked>>	61%	27760	64%	**32	94%
Vihtavuori 3N37	<<locked>>	61%	19943	46%	**1	98%
[Vihtavuori 3N38]*	<<locked>>	64%	14997	34%	**6	81%
[Vihtavuori N105]*	<<locked>>	68%	13184	30%	**9	82%
Vihtavuori N310	<<locked>>	60%	35737	82%	**8	100%
Vihtavuori N320	<<locked>>	62%	26818	62%	**8	100%
Vihtavuori N32C Tin Star	<<locked>>	60%	15273	35%	**5	100%
Vihtavuori N330	<<locked>>	61%	24279	56%	**8	100%
Vihtavuori N340	<<locked>>	62%	22655	52%	**1	100%
Vihtavuori N350	<<locked>>	61%	18347	42%	**1	98%
Winchester 231	<<locked>>	61%	33605	77%	**70	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