Load data for .38 Super Auto + .357 | 125gr | Sierra JSP FN

Recommended Powder(s): Alliant UNIQUE, ReloadSwiss RS 20, SNPE Vectan A0, Somchem MP200, Vihtavuori N340

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.357 \| 125gr \| Sierra JSP FN
Manufacturer SKU:	8310
Bullet Weight:	125gr \| 8.1g
Bullet Diameter:	0.357" \| 9.07mm
Bullet Length:	0.532" \| 13.5mm
Caliber:	.38 Super Auto load data
Case Length (l3):	0.890" \| 22.6mm
Cartridge Length (C.O.L.):	1.261" \| 32.0mm
Seated Depth:	0.161" \| 4.1mm
Shank Seated Depth:	0.161" \| 4.1mm
Case Capacity:	17.6 Grains of Water \| 1.14 cm³
Primer Size:	Small Pistol (SP)
Max. allowed Pressure:	33359 psi \| 2300 bar
LID:	LID_B5945_C583
Last updated:	2025-02-02

Load data for 104 loads in caliber .38 Super Auto with .357 | 125gr | Sierra JSP FN bullet and 52 powders such as Alliant UNIQUE, ReloadSwiss RS 20, SNPE Vectan A0, Somchem MP200, Vihtavuori N340. 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%	28906	87%	**22	93%
ADI AP 70N	<<locked>>	66%	29254	88%	**57	100%
ADI APS 350	<<locked>>	67%	28384	85%	**56	100%
ADI APS 450	<<locked>>	71%	29501	88%	**06	100%
ADI AS 30	<<locked>>	74%	29950	90%	**58	100%
ADI AS 50N	<<locked>>	70%	28761	86%	**88	100%
Accurate No. 2	<<locked>>	73%	28761	86%	**53	100%
[Accurate No. 7]*	<<locked>>	79%	29907	90%	**91	83%
Accurate Solo 1000	<<locked>>	74%	29834	89%	**88	100%
Accurate Solo 1250	<<locked>>	79%	28761	86%	**34	100%
Alliant BULLSEYE	<<locked>>	69%	28790	86%	**96	100%
Alliant POWER PISTOL	<<locked>>	81%	29588	89%	**81	92%
Alliant UNIQUE 👍	<<locked>>	81%	29631	89%	**19	100%
Baschieri & Pellagri 100	<<locked>>	75%	29066	87%	**88	100%
Hodgdon Clays	<<locked>>	67%	28805	86%	**76	100%
Hodgdon HS-6	<<locked>>	66%	29298	88%	**25	97%
Hodgdon Universal	<<locked>>	73%	29254	88%	**57	100%
Hodgdon CFE Pistol	<<locked>>	75%	28863	87%	**47	100%
Hodgdon TrailBoss	<<locked>>	95%	12749	38%	**3	100%
[Lovex D037.1]*	<<locked>>	79%	29907	90%	**91	83%
Lovex S011	<<locked>>	64%	29298	88%	**07	100%
Lovex S020	<<locked>>	73%	29153	87%	**73	100%
Maxam CSB 1	<<locked>>	84%	29820	89%	**47	100%
Maxam CSB 2	<<locked>>	79%	28601	86%	**43	100%
Maxam CSB 3	<<locked>>	77%	29428	88%	**14	100%
Maxam CSB 4	<<locked>>	74%	29762	89%	**01	100%
Maxam CSB 5	<<locked>>	68%	28761	86%	**38	100%
Ramshot Silhouette	<<locked>>	67%	29863	90%	**12	100%
ReloadSwiss RS 12	<<locked>>	68%	28848	86%	**24	100%
ReloadSwiss RS 14	<<locked>>	94%	11110	33%	**0	100%
ReloadSwiss RS 20 👍	<<locked>>	83%	29530	89%	**19	100%
[ReloadSwiss RS 24]*	<<locked>>	84%	29356	88%	**62	86%
Rottweil P 801	<<locked>>	64%	28921	87%	**94	100%
Rottweil P 806	<<locked>>	92%	29037	87%	**30	98%
SNPE Vectan A0 👍	<<locked>>	83%	29689	89%	**66	100%
SNPE Vectan BA 9	<<locked>>	75%	29979	90%	**50	100%
SNPE Vectan BA10	<<locked>>	66%	29486	88%	**06	100%
SNPE Vectan BA7 1/2	<<locked>>	88%	28834	86%	**96	97%
SNPE Vectan BA9 1/2	<<locked>>	75%	28645	86%	**40	100%
[Shooters World Major Pistol]*	<<locked>>	79%	29907	90%	**91	83%
Somchem MP200 👍	<<locked>>	74%	29501	88%	**99	100%
Somchem MS200	<<locked>>	78%	29196	88%	**76	100%
[Somchem S221]*	<<locked>>	70%	29124	87%	**39	89%
Vihtavuori 3N37	<<locked>>	82%	28776	86%	**25	98%
[Vihtavuori 3N38]*	<<locked>>	96%	29037	87%	**48	86%
[Vihtavuori N105]*	<<locked>>	96%	22452	67%	**83	86%
Vihtavuori N320	<<locked>>	72%	28848	86%	**94	100%
Vihtavuori N32C Tin Star	<<locked>>	97%	28384	85%	**22	100%
Vihtavuori N330	<<locked>>	76%	29646	89%	**73	100%
Vihtavuori N340 👍	<<locked>>	78%	28834	86%	**73	100%
Vihtavuori N350	<<locked>>	85%	28950	87%	**19	98%
Winchester 231	<<locked>>	62%	28979	87%	**24	100%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AP 100]*	<<locked>>	70%	14605	44%	**07	80%
ADI AP 70N	<<locked>>	61%	25208	76%	**94	100%
ADI APS 350	<<locked>>	62%	25077	75%	**10	100%
ADI APS 450	<<locked>>	62%	23351	70%	**20	100%
ADI AS 30	<<locked>>	60%	20813	62%	**24	100%
ADI AS 50N	<<locked>>	62%	22989	69%	**02	100%
Accurate No. 2	<<locked>>	62%	20102	60%	**06	97%
[Accurate No. 7]*	<<locked>>	75%	25498	76%	**09	80%
Accurate Solo 1000	<<locked>>	60%	21045	63%	**53	100%
Accurate Solo 1250	<<locked>>	60%	16940	51%	**30	100%
Alliant BULLSEYE	<<locked>>	62%	23366	70%	**98	100%
[Alliant POWER PISTOL]*	<<locked>>	61%	16114	48%	**83	81%
Alliant UNIQUE	<<locked>>	61%	17579	53%	**86	98%
Baschieri & Pellagri 100	<<locked>>	60%	19334	58%	**33	100%
Hodgdon Clays	<<locked>>	62%	25295	76%	**30	100%
Hodgdon HS-6	<<locked>>	61%	24627	74%	**43	94%
Hodgdon Universal	<<locked>>	62%	21364	64%	**29	100%
Hodgdon CFE Pistol	<<locked>>	61%	19290	58%	**86	100%
Hodgdon TrailBoss	<<locked>>	62%	6686	20%	**3	99%
[Lovex D037.1]*	<<locked>>	75%	25498	76%	**09	80%
Lovex S011	<<locked>>	60%	26020	78%	**61	100%
Lovex S020	<<locked>>	60%	19870	60%	**12	100%
Maxam CSB 1	<<locked>>	61%	16317	49%	**10	100%
Maxam CSB 2	<<locked>>	61%	17056	51%	**50	100%
Maxam CSB 3	<<locked>>	60%	18652	56%	**43	100%
Maxam CSB 4	<<locked>>	61%	21031	63%	**66	100%
Maxam CSB 5	<<locked>>	61%	24062	72%	**70	100%
Ramshot Silhouette	<<locked>>	61%	24729	74%	**34	99%
ReloadSwiss RS 12	<<locked>>	61%	22872	69%	**42	100%
ReloadSwiss RS 14	<<locked>>	65%	6556	20%	**2	96%
ReloadSwiss RS 20	<<locked>>	61%	15360	46%	**53	98%
[ReloadSwiss RS 24]*	<<locked>>	76%	22843	68%	**40	81%
Rottweil P 801	<<locked>>	62%	27398	82%	**71	100%
[Rottweil P 806]*	<<locked>>	63%	10834	32%	**1	80%
SNPE Vectan A0	<<locked>>	62%	17027	51%	**30	97%
SNPE Vectan BA 9	<<locked>>	61%	20001	60%	**86	100%
SNPE Vectan BA10	<<locked>>	62%	26368	79%	**66	100%
[SNPE Vectan BA7 1/2]*	<<locked>>	61%	13793	41%	**1	86%
SNPE Vectan BA9 1/2	<<locked>>	61%	19754	59%	**89	100%
[Shooters World Major Pistol]*	<<locked>>	75%	25498	76%	**09	80%
Somchem MP200	<<locked>>	61%	20001	60%	**29	98%
Somchem MS200	<<locked>>	61%	18391	55%	**76	99%
[Somchem S221]*	<<locked>>	60%	21045	63%	**84	83%
[Vihtavuori 3N37]*	<<locked>>	61%	15331	46%	**47	89%
[Vihtavuori 3N38]*	<<locked>>	85%	21364	64%	**07	81%
[Vihtavuori N105]*	<<locked>>	89%	18115	54%	**75	81%
Vihtavuori N320	<<locked>>	61%	21234	64%	**83	100%
Vihtavuori N32C Tin Star	<<locked>>	62%	12691	38%	**3	100%
Vihtavuori N330	<<locked>>	61%	18666	56%	**93	100%
Vihtavuori N340	<<locked>>	62%	17738	53%	**73	98%
[Vihtavuori N350]*	<<locked>>	61%	14127	42%	**10	88%
Winchester 231	<<locked>>	61%	27557	83%	**04	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