Load data for .357 Maximum + .357 | 158gr | Sierra JSP FN

Recommended Powder(s): ADI AP 100, ReloadSwiss RS 24

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:	.357 Maximum load data
Case Length (l3):	1.600" \| 40.6mm
Cartridge Length (C.O.L.):	1.960" \| 49.8mm
Seated Depth:	0.281" \| 7.1mm
Shank Seated Depth:	0.281" \| 7.1mm
Case Capacity:	33.6 Grains of Water \| 2.18 cm³
Primer Size:	Small Pistol (SP)
Max. allowed Pressure:	44962 psi \| 3100 bar
LID:	LID_B5948_C515
Last updated:	2025-02-02

Load data for 110 loads in caliber .357 Maximum with .357 | 158gr | Sierra JSP FN bullet and 55 powders such as ADI AP 100, ReloadSwiss RS 24. 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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Min z (%)
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Max FR*
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Safety Buffer (%)
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Use the Personalized Load Calculator to customize loads to your own specific requirements. Find more details in the help section.

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.

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>>	83%	39508	88%	**57	100%
ADI APS 350	<<locked>>	69%	38638	86%	**71	100%
ADI APS 450	<<locked>>	70%	39044	87%	**04	100%
ADI AS 30	<<locked>>	69%	38305	85%	**24	100%
ADI AS 50N	<<locked>>	65%	39363	88%	**73	100%
[Accurate 4100]*	<<locked>>	84%	40422	90%	**39	88%
Accurate No. 2	<<locked>>	65%	38870	86%	**52	100%
Accurate No. 7	<<locked>>	64%	40059	89%	**22	98%
Accurate No. 9	<<locked>>	71%	39247	87%	**09	93%
Accurate Solo 1000	<<locked>>	68%	39436	88%	**60	100%
Accurate Solo 1250	<<locked>>	70%	38450	86%	**02	100%
Accurate TCM	<<locked>>	72%	40219	89%	**12	95%
Alliant 2400	<<locked>>	81%	40277	90%	**39	91%
Alliant BLUE DOT	<<locked>>	83%	39088	87%	**03	97%
Alliant POWER PISTOL	<<locked>>	68%	38783	86%	**80	100%
Alliant UNIQUE	<<locked>>	69%	38609	86%	**75	100%
Baschieri & Pellagri 100	<<locked>>	68%	38841	86%	**57	100%
Hodgdon Clays	<<locked>>	69%	39595	88%	**91	100%
[Hodgdon H110]*	<<locked>>	89%	40016	89%	**45	84%
Hodgdon LilGun	<<locked>>	91%	40277	90%	**11	92%
Hodgdon Universal	<<locked>>	65%	39566	88%	**22	100%
Hodgdon TrailBoss	<<locked>>	96%	21582	48%	**1	100%
Lovex D037.1	<<locked>>	64%	40059	89%	**22	98%
Lovex D037.2	<<locked>>	71%	39247	87%	**09	93%
Lovex S020	<<locked>>	63%	38653	86%	**32	100%
Maxam CSB 1	<<locked>>	74%	39450	88%	**09	100%
Maxam CSB 2	<<locked>>	70%	39914	89%	**06	100%
Maxam CSB 3	<<locked>>	70%	39595	88%	**96	100%
Maxam CSB 4	<<locked>>	68%	39624	88%	**76	100%
Maxam CSB 5	<<locked>>	65%	39349	88%	**27	100%
Ramshot Enforcer	<<locked>>	81%	39769	88%	**49	92%
ReloadSwiss RS 14	<<locked>>	94%	19812	44%	**4	100%
ReloadSwiss RS 20	<<locked>>	71%	40016	89%	**75	100%
ReloadSwiss RS 24 👍	<<locked>>	70%	38972	87%	**03	99%
Rottweil P 806	<<locked>>	73%	40379	90%	**93	100%
SNPE Vectan A0	<<locked>>	73%	39363	88%	**48	100%
SNPE Vectan BA 9	<<locked>>	66%	39088	87%	**12	100%
SNPE Vectan BA10	<<locked>>	65%	39030	87%	**04	100%
[SNPE Vectan BA6 1/2]*	<<locked>>	96%	27615	61%	**39	88%
SNPE Vectan BA7 1/2	<<locked>>	77%	39668	88%	**11	100%
SNPE Vectan BA9 1/2	<<locked>>	66%	38464	86%	**12	100%
Shooters World Heavy Pistol	<<locked>>	71%	39247	87%	**09	93%
Shooters World Major Pistol	<<locked>>	64%	40059	89%	**22	98%
Somchem MP200	<<locked>>	64%	39436	88%	**81	100%
Somchem MS200	<<locked>>	69%	39175	87%	**52	100%
[Somchem S265]*	<<locked>>	97%	38841	86%	**86	83%
Vihtavuori 3N37	<<locked>>	70%	39334	87%	**14	100%
Vihtavuori 3N38	<<locked>>	80%	40118	89%	**03	99%
Vihtavuori N105	<<locked>>	84%	40016	89%	**22	100%
Vihtavuori N110	<<locked>>	97%	35868	80%	**99	90%
Vihtavuori N320	<<locked>>	66%	40219	89%	**76	100%
Vihtavuori N32C Tin Star	<<locked>>	89%	38551	86%	**98	100%
Vihtavuori N330	<<locked>>	65%	39059	87%	**16	100%
Vihtavuori N340	<<locked>>	69%	39146	87%	**52	100%
Vihtavuori N350	<<locked>>	73%	39798	89%	**21	100%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
ADI AP 100	<<locked>>	61%	21567	48%	**61	97%
ADI APS 350	<<locked>>	61%	32489	72%	**99	100%
ADI APS 450	<<locked>>	61%	31343	70%	**12	100%
ADI AS 30	<<locked>>	61%	32256	72%	**52	100%
ADI AS 50N	<<locked>>	61%	35172	78%	**27	100%
[Accurate 4100]*	<<locked>>	73%	27601	61%	**29	80%
Accurate No. 2	<<locked>>	61%	34534	77%	**99	100%
Accurate No. 7	<<locked>>	61%	35288	78%	**50	96%
[Accurate No. 9]*	<<locked>>	61%	26600	59%	**99	86%
Accurate Solo 1000	<<locked>>	62%	33388	74%	**88	100%
Accurate Solo 1250	<<locked>>	61%	30458	68%	**01	100%
[Accurate TCM]*	<<locked>>	61%	27064	60%	**06	88%
[Alliant 2400]*	<<locked>>	65%	23772	53%	**53	81%
[Alliant BLUE DOT]*	<<locked>>	61%	20624	46%	**65	86%
Alliant POWER PISTOL	<<locked>>	61%	31894	71%	**78	100%
Alliant UNIQUE	<<locked>>	61%	31038	69%	**76	100%
Baschieri & Pellagri 100	<<locked>>	61%	32793	73%	**91	100%
Hodgdon Clays	<<locked>>	61%	33214	74%	**15	100%
[Hodgdon H110]*	<<locked>>	85%	33794	75%	**53	81%
[Hodgdon LilGun]*	<<locked>>	78%	24468	54%	**29	81%
Hodgdon Universal	<<locked>>	61%	35578	79%	**80	100%
Hodgdon TrailBoss	<<locked>>	62%	11211	25%	**8	100%
Lovex D037.1	<<locked>>	61%	35288	78%	**50	96%
[Lovex D037.2]*	<<locked>>	61%	27673	62%	**25	87%
Lovex S020	<<locked>>	61%	36521	81%	**12	100%
Maxam CSB 1	<<locked>>	61%	28311	63%	**65	100%
Maxam CSB 2	<<locked>>	61%	32068	71%	**07	100%
Maxam CSB 3	<<locked>>	61%	31865	71%	**91	100%
Maxam CSB 4	<<locked>>	61%	33605	75%	**01	100%
Maxam CSB 5	<<locked>>	60%	35056	78%	**78	100%
[Ramshot Enforcer]*	<<locked>>	65%	22611	50%	**37	81%
ReloadSwiss RS 14	<<locked>>	61%	10443	23%	**4	100%
ReloadSwiss RS 20	<<locked>>	61%	30618	68%	**57	100%
ReloadSwiss RS 24	<<locked>>	61%	29646	66%	**45	96%
Rottweil P 806	<<locked>>	61%	27282	61%	**96	100%
SNPE Vectan A0	<<locked>>	61%	28790	64%	**14	100%
SNPE Vectan BA 9	<<locked>>	61%	33547	75%	**47	100%
SNPE Vectan BA10	<<locked>>	61%	35186	78%	**58	100%
[SNPE Vectan BA6 1/2]*	<<locked>>	85%	20537	46%	**88	81%
SNPE Vectan BA7 1/2	<<locked>>	61%	25454	57%	**04	100%
SNPE Vectan BA9 1/2	<<locked>>	61%	32837	73%	**40	100%
[Shooters World Heavy Pistol]*	<<locked>>	61%	27673	62%	**25	87%
Shooters World Major Pistol	<<locked>>	61%	35288	78%	**50	96%
Somchem MP200	<<locked>>	61%	35592	79%	**25	100%
Somchem MS200	<<locked>>	61%	31749	71%	**60	100%
[Somchem S265]*	<<locked>>	93%	34650	77%	**24	80%
Vihtavuori 3N37	<<locked>>	61%	30618	68%	**06	100%
Vihtavuori 3N38	<<locked>>	61%	22365	50%	**01	92%
Vihtavuori N105	<<locked>>	61%	18869	42%	**55	93%
[Vihtavuori N110]*	<<locked>>	83%	23612	53%	**66	80%
Vihtavuori N320	<<locked>>	61%	35795	80%	**24	100%
Vihtavuori N32C Tin Star	<<locked>>	61%	21045	47%	**5	100%
Vihtavuori N330	<<locked>>	61%	34853	78%	**66	100%
Vihtavuori N340	<<locked>>	61%	31386	70%	**53	100%
Vihtavuori N350	<<locked>>	61%	27557	61%	**53	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.