Load data for .38 Super Auto + .357 | 158gr | Sierra JSP FN

Recommended Powder(s): Alliant UNIQUE, Hodgdon Longshot, Rottweil P 806, SNPE Vectan A0

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.357 \| 158gr \| Sierra JSP FN
Manufacturer SKU:	8340
Bullet Weight:	158gr \| 10.2g
Bullet Diameter:	0.357" \| 9.07mm
Bullet Length:	0.641" \| 16.3mm
Caliber:	.38 Super Auto load data
Case Length (l3):	0.890" \| 22.6mm
Cartridge Length (C.O.L.):	1.261" \| 32.0mm
Seated Depth:	0.270" \| 6.9mm
Shank Seated Depth:	0.270" \| 6.9mm
Case Capacity:	17.6 Grains of Water \| 1.14 cm³
Primer Size:	Small Pistol (SP)
Max. allowed Pressure:	33359 psi \| 2300 bar
LID:	LID_B5948_C583
Last updated:	2025-02-02

Load data for 106 loads in caliber .38 Super Auto with .357 | 158gr | Sierra JSP FN bullet and 53 powders such as Alliant UNIQUE, Hodgdon Longshot, Rottweil P 806, SNPE Vectan A0. 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%	28718	86%	**12	94%
ADI AP 70N	<<locked>>	65%	28587	86%	**37	100%
ADI APS 350	<<locked>>	68%	28993	87%	**3	100%
ADI APS 450	<<locked>>	71%	29733	89%	**9	100%
ADI AS 30	<<locked>>	72%	28398	85%	**5	100%
ADI AS 50N	<<locked>>	69%	28326	85%	**4	100%
Accurate No. 2	<<locked>>	73%	28500	85%	**43	100%
[Accurate No. 7]*	<<locked>>	79%	29617	89%	**71	85%
Accurate Solo 1000	<<locked>>	73%	29254	88%	**8	100%
Accurate Solo 1250	<<locked>>	81%	30008	90%	**40	100%
Alliant BULLSEYE	<<locked>>	70%	29805	89%	**93	100%
Alliant POWER PISTOL	<<locked>>	80%	28761	86%	**55	94%
Alliant UNIQUE 👍	<<locked>>	80%	28790	86%	**89	100%
Baschieri & Pellagri 100	<<locked>>	75%	29559	89%	**8	100%
Hodgdon Clays	<<locked>>	68%	29443	88%	**6	100%
Hodgdon HS-6	<<locked>>	66%	28906	87%	**06	98%
Hodgdon Longshot 👍	<<locked>>	63%	29283	88%	**09	99%
Hodgdon Universal	<<locked>>	73%	28587	86%	**37	100%
Hodgdon CFE Pistol	<<locked>>	76%	29689	89%	**47	100%
Hodgdon TrailBoss	<<locked>>	97%	13010	39%	**5	100%
[Lovex D037.1]*	<<locked>>	79%	29617	89%	**71	85%
Lovex S011	<<locked>>	64%	29399	88%	**04	100%
Lovex S020	<<locked>>	71%	27920	84%	**43	100%
Maxam CSB 1	<<locked>>	81%	28210	85%	**17	100%
Maxam CSB 2	<<locked>>	79%	28340	85%	**30	100%
Maxam CSB 3	<<locked>>	76%	28181	84%	**7	100%
Maxam CSB 4	<<locked>>	74%	29675	89%	**4	100%
Maxam CSB 5	<<locked>>	69%	29037	87%	**5	100%
Ramshot Silhouette	<<locked>>	66%	28979	87%	**89	100%
Ramshot True Blue	<<locked>>	63%	29936	90%	**12	99%
ReloadSwiss RS 12	<<locked>>	70%	29660	89%	**30	100%
ReloadSwiss RS 14	<<locked>>	95%	11414	34%	**5	100%
ReloadSwiss RS 20	<<locked>>	83%	29573	89%	**06	100%
[ReloadSwiss RS 24]*	<<locked>>	85%	29733	89%	**58	88%
Rottweil P 801	<<locked>>	64%	29370	88%	**7	100%
Rottweil P 806 👍	<<locked>>	93%	29878	90%	**20	99%
SNPE Vectan A0 👍	<<locked>>	82%	29414	88%	**53	100%
SNPE Vectan BA 9	<<locked>>	74%	28993	87%	**27	100%
SNPE Vectan BA10	<<locked>>	67%	29718	89%	**9	100%
SNPE Vectan BA7 1/2	<<locked>>	89%	29718	89%	**99	99%
SNPE Vectan BA9 1/2	<<locked>>	74%	28398	85%	**30	100%
[Shooters World Major Pistol]*	<<locked>>	79%	29617	89%	**71	85%
Somchem MP200	<<locked>>	74%	29283	88%	**86	100%
Somchem MS200	<<locked>>	78%	29776	89%	**70	100%
Somchem S221	<<locked>>	70%	28921	87%	**25	91%
Vihtavuori 3N37	<<locked>>	83%	29501	88%	**22	99%
[Vihtavuori 3N38]*	<<locked>>	95%	28340	85%	**35	88%
[Vihtavuori N105]*	<<locked>>	95%	21741	65%	**76	88%
Vihtavuori N320	<<locked>>	71%	28543	86%	**1	100%
Vihtavuori N32C Tin Star	<<locked>>	97%	28340	85%	**8	100%
Vihtavuori N330	<<locked>>	76%	29892	90%	**60	100%
Vihtavuori N340	<<locked>>	80%	29718	89%	**73	100%
Vihtavuori N350	<<locked>>	85%	28921	87%	**12	99%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AP 100]*	<<locked>>	68%	13474	40%	**3	81%
ADI AP 70N	<<locked>>	61%	25309	76%	**7	100%
ADI APS 350	<<locked>>	62%	24787	74%	**3	100%
ADI APS 450	<<locked>>	60%	22133	66%	**0	100%
ADI AS 30	<<locked>>	60%	20929	63%	**0	100%
ADI AS 50N	<<locked>>	61%	22698	68%	**2	100%
Accurate No. 2	<<locked>>	61%	19725	59%	**9	98%
[Accurate No. 7]*	<<locked>>	72%	22713	68%	**70	81%
Accurate Solo 1000	<<locked>>	62%	21915	66%	**6	100%
Accurate Solo 1250	<<locked>>	60%	16969	51%	**0	100%
Alliant BULLSEYE	<<locked>>	61%	22713	68%	**1	100%
[Alliant POWER PISTOL]*	<<locked>>	61%	16085	48%	**5	84%
Alliant UNIQUE	<<locked>>	60%	16911	51%	**9	98%
Baschieri & Pellagri 100	<<locked>>	60%	19087	57%	**0	100%
Hodgdon Clays	<<locked>>	62%	25077	75%	**6	100%
Hodgdon HS-6	<<locked>>	61%	24439	73%	**40	96%
Hodgdon Longshot	<<locked>>	60%	26107	78%	**66	98%
Hodgdon Universal	<<locked>>	60%	20537	62%	**8	100%
Hodgdon CFE Pistol	<<locked>>	60%	19131	57%	**6	100%
Hodgdon TrailBoss	<<locked>>	83%	10124	30%	**9	100%
[Lovex D037.1]*	<<locked>>	72%	22713	68%	**70	81%
Lovex S011	<<locked>>	62%	27412	82%	**4	100%
Lovex S020	<<locked>>	60%	19798	59%	**2	100%
Maxam CSB 1	<<locked>>	60%	16230	49%	**0	100%
Maxam CSB 2	<<locked>>	61%	17274	52%	**9	100%
Maxam CSB 3	<<locked>>	62%	19769	59%	**6	100%
Maxam CSB 4	<<locked>>	60%	20581	62%	**3	100%
Maxam CSB 5	<<locked>>	60%	23163	69%	**6	100%
Ramshot Silhouette	<<locked>>	61%	24250	73%	**24	100%
Ramshot True Blue	<<locked>>	61%	28398	85%	**89	99%
ReloadSwiss RS 12	<<locked>>	60%	22379	67%	**5	100%
ReloadSwiss RS 14	<<locked>>	81%	9050	27%	**9	100%
ReloadSwiss RS 20	<<locked>>	60%	15185	46%	**6	99%
[ReloadSwiss RS 24]*	<<locked>>	71%	19508	58%	**8	80%
Rottweil P 801	<<locked>>	62%	27470	82%	**4	100%
[Rottweil P 806]*	<<locked>>	61%	9877	30%	**4	81%
SNPE Vectan A0	<<locked>>	61%	16389	49%	**3	98%
SNPE Vectan BA 9	<<locked>>	60%	19812	59%	**2	100%
SNPE Vectan BA10	<<locked>>	61%	25788	77%	**6	100%
[SNPE Vectan BA7 1/2]*	<<locked>>	61%	14025	42%	**3	88%
SNPE Vectan BA9 1/2	<<locked>>	60%	19102	57%	**9	100%
[Shooters World Major Pistol]*	<<locked>>	72%	22713	68%	**70	81%
Somchem MP200	<<locked>>	61%	20320	61%	**1	99%
Somchem MS200	<<locked>>	62%	19000	57%	**2	100%
[Somchem S221]*	<<locked>>	61%	21451	64%	**07	86%
Vihtavuori 3N37	<<locked>>	60%	14968	45%	**3	91%
[Vihtavuori 3N38]*	<<locked>>	80%	18318	55%	**5	80%
[Vihtavuori N105]*	<<locked>>	83%	15432	46%	**8	80%
Vihtavuori N320	<<locked>>	61%	20943	63%	**9	100%
Vihtavuori N32C Tin Star	<<locked>>	62%	12778	38%	**9	100%
Vihtavuori N330	<<locked>>	62%	19363	58%	**5	100%
Vihtavuori N340	<<locked>>	61%	17274	52%	**9	99%
Vihtavuori N350	<<locked>>	62%	14373	43%	**0	91%

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