Load data for .38 Super Auto + .357 | 170gr | Sierra JHC SportsMaster

Recommended Powder(s): Alliant UNIQUE, Ramshot Silhouette, ReloadSwiss RS 20, Somchem MP200, 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:	.38 Super Auto load data
Case Length (l3):	0.890" \| 22.6mm
Cartridge Length (C.O.L.):	1.261" \| 32.0mm
Seated Depth:	0.369" \| 9.4mm
Shank Seated Depth:	0.369" \| 9.4mm
Case Capacity:	17.6 Grains of Water \| 1.14 cm³
Primer Size:	Small Pistol (SP)
Max. allowed Pressure:	33359 psi \| 2300 bar
LID:	LID_B5950_C583
Last updated:	2025-02-02

Load data for 108 loads in caliber .38 Super Auto with .357 | 170gr | Sierra JHC SportsMaster bullet and 54 powders such as Alliant UNIQUE, Ramshot Silhouette, ReloadSwiss RS 20, Somchem MP200, 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>>	97%	24613	74%	**5	90%
ADI AP 70N	<<locked>>	71%	29573	89%	**8	100%
ADI APS 350	<<locked>>	72%	29153	87%	**1	100%
ADI APS 450	<<locked>>	74%	28660	86%	**7	100%
ADI AS 30	<<locked>>	78%	29414	88%	**3	100%
ADI AS 50N	<<locked>>	73%	27528	83%	**9	100%
Accurate No. 2	<<locked>>	76%	28079	84%	**2	100%
Accurate No. 5	<<locked>>	65%	28819	86%	**04	95%
[Accurate No. 7]*	<<locked>>	84%	28979	87%	**47	83%
Accurate Solo 1000	<<locked>>	77%	28848	86%	**9	100%
Accurate Solo 1250	<<locked>>	85%	28964	87%	**2	100%
Alliant BULLSEYE	<<locked>>	73%	28384	85%	**8	100%
Alliant POWER PISTOL	<<locked>>	87%	29341	88%	**50	93%
Alliant UNIQUE 👍	<<locked>>	85%	28123	84%	**8	100%
Baschieri & Pellagri 100	<<locked>>	78%	27876	84%	**6	100%
Hodgdon Clays	<<locked>>	72%	29327	88%	**4	100%
Hodgdon HS-6	<<locked>>	72%	29965	90%	**07	97%
Hodgdon Longshot	<<locked>>	66%	28050	84%	**4	98%
Hodgdon Universal	<<locked>>	79%	29573	89%	**8	100%
Hodgdon CFE Pistol	<<locked>>	82%	29820	89%	**1	100%
Lovex D036	<<locked>>	65%	28776	86%	**04	95%
[Lovex D037.1]*	<<locked>>	84%	28979	87%	**47	83%
Lovex S011	<<locked>>	69%	29820	89%	**2	100%
Lovex S020	<<locked>>	79%	29646	89%	**5	100%
Maxam CSB 1	<<locked>>	89%	29486	88%	**2	100%
Maxam CSB 2	<<locked>>	86%	28993	87%	**5	100%
Maxam CSB 3	<<locked>>	81%	28427	85%	**2	100%
Maxam CSB 4	<<locked>>	79%	29327	88%	**6	100%
Maxam CSB 5	<<locked>>	71%	27311	82%	**7	100%
Ramshot Silhouette 👍	<<locked>>	70%	28108	84%	**4	100%
Ramshot True Blue	<<locked>>	66%	28500	85%	**4	98%
ReloadSwiss RS 12	<<locked>>	76%	29704	89%	**8	100%
ReloadSwiss RS 20 👍	<<locked>>	87%	27862	84%	**1	100%
[ReloadSwiss RS 24]*	<<locked>>	90%	29240	88%	**37	86%
Rottweil P 801	<<locked>>	69%	29501	88%	**6	100%
Rottweil P 806	<<locked>>	95%	24685	74%	**50	96%
SNPE Vectan A0	<<locked>>	88%	29617	89%	**8	100%
SNPE Vectan BA 9	<<locked>>	79%	29080	87%	**8	100%
SNPE Vectan BA10	<<locked>>	69%	28645	86%	**7	100%
SNPE Vectan BA7 1/2	<<locked>>	94%	28935	87%	**1	97%
SNPE Vectan BA9 1/2	<<locked>>	81%	29704	89%	**5	100%
Shooters World Auto Pistol	<<locked>>	65%	28776	86%	**04	95%
[Shooters World Major Pistol]*	<<locked>>	84%	28979	87%	**47	83%
Somchem MP200 👍	<<locked>>	80%	29747	89%	**8	100%
Somchem MS200	<<locked>>	84%	29892	90%	**5	100%
[Somchem S221]*	<<locked>>	76%	29472	88%	**20	89%
Vihtavuori 3N37	<<locked>>	89%	30008	90%	**20	99%
[Vihtavuori 3N38]*	<<locked>>	97%	24526	74%	**8	84%
Vihtavuori N320	<<locked>>	76%	28137	84%	**6	100%
Vihtavuori N32C Tin Star	<<locked>>	93%	23163	69%	**4	100%
Vihtavuori N330	<<locked>>	81%	28993	87%	**1	100%
Vihtavuori N340	<<locked>>	82%	27833	83%	**8	100%
Vihtavuori N350 👍	<<locked>>	92%	29225	88%	**07	99%
Winchester 231	<<locked>>	67%	29254	88%	**5	100%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AP 100]*	<<locked>>	76%	14808	44%	**4	81%
ADI AP 70N	<<locked>>	60%	21205	64%	**3	100%
[ADI APS 350]²	<<locked>>	59%	21393	64%	**2	100%
ADI APS 450	<<locked>>	62%	21683	65%	**5	100%
ADI AS 30	<<locked>>	63%	20030	60%	**8	100%
ADI AS 50N	<<locked>>	63%	20958	63%	**4	100%
Accurate No. 2	<<locked>>	61%	17419	52%	**7	96%
Accurate No. 5	<<locked>>	61%	25193	76%	**8	93%
[Accurate No. 7]*	<<locked>>	81%	25382	76%	**7	80%
Accurate Solo 1000	<<locked>>	62%	19812	59%	**4	100%
Accurate Solo 1250	<<locked>>	61%	15273	46%	**8	100%
Alliant BULLSEYE	<<locked>>	61%	20102	60%	**6	99%
[Alliant POWER PISTOL]*	<<locked>>	64%	15214	46%	**7	81%
Alliant UNIQUE	<<locked>>	60%	14446	43%	**4	96%
Baschieri & Pellagri 100	<<locked>>	61%	17622	53%	**5	100%
[Hodgdon Clays]²	<<locked>>	59%	21669	65%	**5	100%
Hodgdon HS-6	<<locked>>	61%	21147	63%	**9	92%
Hodgdon Longshot	<<locked>>	60%	22539	68%	**2	95%
Hodgdon Universal	<<locked>>	60%	17637	53%	**7	100%
Hodgdon CFE Pistol	<<locked>>	61%	17056	51%	**7	100%
Lovex D036	<<locked>>	61%	25150	75%	**5	93%
[Lovex D037.1]*	<<locked>>	81%	25382	76%	**7	80%
Lovex S011	<<locked>>	60%	22902	69%	**3	100%
Lovex S020	<<locked>>	61%	17289	52%	**7	99%
Maxam CSB 1	<<locked>>	61%	14620	44%	**2	100%
Maxam CSB 2	<<locked>>	60%	13779	41%	**8	100%
Maxam CSB 3	<<locked>>	60%	16331	49%	**1	100%
Maxam CSB 4	<<locked>>	61%	18376	55%	**8	100%
Maxam CSB 5	<<locked>>	60%	20233	61%	**1	100%
Ramshot Silhouette	<<locked>>	61%	20958	63%	**6	98%
Ramshot True Blue	<<locked>>	62%	24816	74%	**8	96%
ReloadSwiss RS 12	<<locked>>	60%	19145	57%	**0	100%
ReloadSwiss RS 20	<<locked>>	60%	13010	39%	**1	97%
[ReloadSwiss RS 24]*	<<locked>>	81%	22597	68%	**2	81%
Rottweil P 801	<<locked>>	61%	22945	69%	**7	100%
[Rottweil P 806]*	<<locked>>	69%	10515	32%	**4	81%
SNPE Vectan A0	<<locked>>	60%	14141	42%	**2	95%
SNPE Vectan BA 9	<<locked>>	61%	17970	54%	**4	100%
SNPE Vectan BA10	<<locked>>	61%	23757	71%	**8	100%
[SNPE Vectan BA7 1/2]*	<<locked>>	61%	11995	36%	**6	84%
[SNPE Vectan BA9 1/2]²	<<locked>>	59%	16520	50%	**1	100%
Shooters World Auto Pistol	<<locked>>	61%	25150	75%	**5	93%
[Shooters World Major Pistol]*	<<locked>>	81%	25382	76%	**7	80%
Somchem MP200	<<locked>>	60%	17361	52%	**0	97%
Somchem MS200	<<locked>>	62%	16795	50%	**7	98%
[Somchem S221]*	<<locked>>	60%	17637	53%	**0	80%
[Vihtavuori 3N37]*	<<locked>>	60%	12792	38%	**5	87%
[Vihtavuori 3N38]*	<<locked>>	92%	21596	65%	**2	81%
Vihtavuori N320	<<locked>>	62%	18753	56%	**7	100%
Vihtavuori N32C Tin Star	<<locked>>	69%	13169	39%	**3	100%
Vihtavuori N330	<<locked>>	62%	16505	49%	**1	100%
Vihtavuori N340	<<locked>>	61%	15026	45%	**4	97%
[Vihtavuori N350]*	<<locked>>	61%	12067	36%	**2	86%
Winchester 231	<<locked>>	62%	24801	74%	**6	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