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

Recommended Powder(s):

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:	<<locked>>
Caliber:	.38 Super Auto load data
Case Length (l3):	0.890" \| 22.6mm
Cartridge Length (C.O.L.):	<<locked>>
Seated Depth:	<<locked>>
Shank Seated Depth:	<<locked>>
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:	2026-01-26

Load data for 114 loads in caliber .38 Super Auto with .357 | 158gr | Sierra JSP FN bullet and 57 powder(s). 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>>	67%	29791	89%	**53	100%
ADI APS 350	<<locked>>	70%	30008	90%	**2	100%
ADI APS 450	<<locked>>	71%	29733	89%	**9	100%
ADI AS 30	<<locked>>	74%	29327	88%	**5	100%
ADI AS 50N	<<locked>>	71%	29211	88%	**4	100%
Accurate No. 2	<<locked>>	74%	29631	89%	**60	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 BLUE DOT]*	<<locked>>	96%	26179	78%	**02	82%
Alliant BULLSEYE	<<locked>>	70%	29805	89%	**93	100%
Alliant Herco 👍	<<locked>>	97%	30023	90%	**02	100%
Alliant POWER PISTOL	<<locked>>	81%	29399	88%	**65	94%
Alliant Sport Pistol	<<locked>>	65%	29414	88%	**86	100%
Alliant UNIQUE 👍	<<locked>>	81%	29646	89%	**02	100%
Baschieri & Pellagri 100	<<locked>>	75%	29559	89%	**8	100%
Baschieri & Pellagri 102 Pistol	<<locked>>	95%	29544	89%	**10	100%
Baschieri & Pellagri 103 Pistol	<<locked>>	72%	29979	90%	**24	100%
Hodgdon Clays	<<locked>>	68%	29443	88%	**6	100%
Hodgdon HS-6	<<locked>>	67%	29762	89%	**15	98%
Hodgdon Longshot 👍	<<locked>>	64%	29950	90%	**19	99%
Hodgdon Universal	<<locked>>	74%	29791	89%	**53	100%
Hodgdon CFE Pistol	<<locked>>	76%	29689	89%	**47	100%
[Lovex D037.1]*	<<locked>>	79%	29617	89%	**71	85%
Lovex S011	<<locked>>	64%	29399	88%	**04	100%
Lovex S020	<<locked>>	73%	28848	86%	**56	100%
Maxam CSB 1	<<locked>>	83%	29066	87%	**27	100%
Maxam CSB 2	<<locked>>	80%	29298	88%	**40	100%
Maxam CSB 3	<<locked>>	77%	29066	87%	**07	100%
Maxam CSB 4	<<locked>>	74%	29675	89%	**4	100%
Maxam CSB 5	<<locked>>	69%	29037	87%	**5	100%
Ramshot Silhouette	<<locked>>	67%	29892	90%	**99	100%
Ramshot True Blue	<<locked>>	63%	29936	90%	**12	99%
ReloadSwiss RS 12	<<locked>>	70%	29660	89%	**30	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>>	75%	29979	90%	**37	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>>	76%	29428	88%	**40	100%
SNPE Vectan SP 2	<<locked>>	78%	29095	87%	**78	96%
[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>>	71%	29820	89%	**38	92%
Vihtavuori 3N37	<<locked>>	83%	29501	88%	**22	99%
[Vihtavuori 3N38]*	<<locked>>	96%	29196	88%	**48	89%
[Vihtavuori N105]*	<<locked>>	96%	22075	66%	**86	88%
Vihtavuori N320	<<locked>>	73%	29588	89%	**01	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>>	86%	29718	89%	**22	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>>	71%	22249	67%	**60	80%
Accurate Solo 1000	<<locked>>	62%	21915	66%	**6	100%
Accurate Solo 1250	<<locked>>	60%	16969	51%	**0	100%
[Alliant BLUE DOT]*	<<locked>>	94%	24482	73%	**79	80%
Alliant BULLSEYE	<<locked>>	61%	22713	68%	**1	100%
Alliant Herco	<<locked>>	64%	13851	42%	**0	97%
[Alliant POWER PISTOL]*	<<locked>>	61%	16085	48%	**5	84%
Alliant Sport Pistol	<<locked>>	61%	25860	78%	**43	100%
Alliant UNIQUE	<<locked>>	60%	16911	51%	**9	98%
Baschieri & Pellagri 100	<<locked>>	60%	19087	57%	**0	100%
Baschieri & Pellagri 102 Pistol	<<locked>>	69%	15360	46%	**0	100%
Baschieri & Pellagri 103 Pistol	<<locked>>	61%	20827	62%	**5	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%
[Lovex D037.1]*	<<locked>>	71%	22249	67%	**60	80%
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 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%	10196	31%	**3	82%
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%
[SNPE Vectan SP 2]*	<<locked>>	60%	16259	49%	**5	87%
[Shooters World Major Pistol]*	<<locked>>	71%	22249	67%	**60	80%
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>>	79%	19696	59%	**0	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