Load data for .357 Maximum + .357 | 125gr | Speer JSP

Recommended Powder(s):

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.357 \| 125gr \| Speer JSP
Manufacturer SKU:	4011
Bullet Weight:	125gr \| 8.1g
Bullet Diameter:	0.357" \| 9.07mm
Bullet Length:	0.515" \| 13.1mm
Caliber:	.357 Maximum load data
Case Length (l3):	1.600" \| 40.6mm
Cartridge Length (C.O.L.):	1.960" \| 49.8mm
Seated Depth:	0.155" \| 3.9mm
Shank Seated Depth:	0.155" \| 3.9mm
Case Capacity:	33.6 Grains of Water \| 2.18 cm³
Primer Size:	Small Pistol (SP)
Max. allowed Pressure:	44962 psi \| 3100 bar
LID:	LID_B6217_C515
Last updated:	2025-01-01

Load data for 108 loads in caliber .357 Maximum with .357 | 125gr | Speer JSP bullet and 54 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>>	86%	39363	88%	**54	100%
ADI APS 350	<<locked>>	71%	39421	88%	**68	100%
ADI APS 450	<<locked>>	71%	39059	87%	**85	100%
ADI AS 30	<<locked>>	72%	40118	89%	**40	100%
ADI AS 50N	<<locked>>	67%	39305	87%	**76	100%
[Accurate 4100]*	<<locked>>	86%	39711	88%	**96	83%
Accurate No. 2	<<locked>>	66%	38696	86%	**62	100%
Accurate No. 7	<<locked>>	66%	40234	89%	**19	95%
Accurate No. 9	<<locked>>	74%	39827	89%	**16	90%
Accurate Solo 1000	<<locked>>	69%	38653	86%	**47	100%
Accurate Solo 1250	<<locked>>	73%	39450	88%	**19	100%
Accurate TCM	<<locked>>	74%	40103	89%	**16	92%
[Alliant 2400]*	<<locked>>	84%	40321	90%	**29	87%
Alliant BLUE DOT	<<locked>>	86%	39363	88%	**03	94%
Alliant BULLSEYE	<<locked>>	65%	40437	90%	**11	100%
Alliant POWER PISTOL 👍	<<locked>>	71%	40335	90%	**13	100%
Alliant UNIQUE	<<locked>>	72%	39494	88%	**88	100%
Baschieri & Pellagri 100	<<locked>>	71%	40379	90%	**80	100%
Hodgdon Clays	<<locked>>	71%	40408	90%	**91	100%
[Hodgdon LilGun]*	<<locked>>	93%	39233	87%	**68	87%
Hodgdon Universal	<<locked>>	68%	40393	90%	**45	100%
Hodgdon TrailBoss	<<locked>>	94%	19856	44%	**12	100%
Lovex D037.1	<<locked>>	66%	40234	89%	**19	95%
Lovex D037.2	<<locked>>	74%	40451	90%	**19	90%
Lovex S020	<<locked>>	66%	40190	89%	**52	100%
Maxam CSB 1	<<locked>>	76%	39842	89%	**09	100%
Maxam CSB 2	<<locked>>	70%	38928	87%	**96	100%
Maxam CSB 3	<<locked>>	72%	40118	89%	**93	100%
Maxam CSB 4	<<locked>>	69%	38696	86%	**63	100%
Maxam CSB 5	<<locked>>	67%	40219	89%	**30	100%
[Ramshot Enforcer]*	<<locked>>	83%	39537	88%	**36	88%
ReloadSwiss RS 12	<<locked>>	62%	39914	89%	**86	100%
ReloadSwiss RS 14	<<locked>>	97%	19827	44%	**48	100%
ReloadSwiss RS 20	<<locked>>	73%	40408	90%	**81	100%
ReloadSwiss RS 24	<<locked>>	72%	39697	88%	**99	97%
Rottweil P 806 👍	<<locked>>	74%	39552	88%	**86	100%
SNPE Vectan A0	<<locked>>	75%	39189	87%	**45	100%
SNPE Vectan BA 9	<<locked>>	69%	39856	89%	**19	100%
SNPE Vectan BA10	<<locked>>	67%	40074	89%	**94	100%
SNPE Vectan BA7 1/2	<<locked>>	79%	39943	89%	**24	100%
SNPE Vectan BA9 1/2	<<locked>>	70%	40030	89%	**32	100%
Shooters World Heavy Pistol	<<locked>>	74%	40451	90%	**19	90%
Shooters World Major Pistol	<<locked>>	66%	40234	89%	**19	95%
Somchem MP200	<<locked>>	66%	39059	87%	**78	100%
Somchem MS200	<<locked>>	70%	38653	86%	**55	100%
Vihtavuori 3N37	<<locked>>	72%	40161	89%	**47	100%
Vihtavuori 3N38	<<locked>>	82%	39305	87%	**73	97%
Vihtavuori N105	<<locked>>	87%	40379	90%	**36	100%
[Vihtavuori N110]*	<<locked>>	96%	31473	70%	**01	83%
Vihtavuori N320	<<locked>>	66%	39189	87%	**63	100%
Vihtavuori N32C Tin Star	<<locked>>	93%	40045	89%	**91	100%
Vihtavuori N330	<<locked>>	67%	38856	86%	**19	100%
Vihtavuori N340	<<locked>>	71%	40118	89%	**68	100%
Vihtavuori N350	<<locked>>	75%	40045	89%	**34	100%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
ADI AP 100	<<locked>>	61%	20117	45%	**73	92%
ADI APS 350	<<locked>>	61%	32068	71%	**66	100%
ADI APS 450	<<locked>>	61%	30429	68%	**63	100%
ADI AS 30	<<locked>>	61%	31096	69%	**12	100%
ADI AS 50N	<<locked>>	61%	34011	76%	**04	100%
[Accurate 4100]*	<<locked>>	82%	34142	76%	**17	81%
Accurate No. 2	<<locked>>	61%	33011	73%	**80	100%
Accurate No. 7	<<locked>>	61%	32793	73%	**01	92%
[Accurate No. 9]*	<<locked>>	61%	24860	55%	**07	80%
Accurate Solo 1000	<<locked>>	61%	31560	70%	**52	100%
Accurate Solo 1250	<<locked>>	61%	28950	64%	**58	100%
[Accurate TCM]*	<<locked>>	61%	25019	56%	**11	82%
[Alliant 2400]*	<<locked>>	74%	29689	66%	**45	81%
[Alliant BLUE DOT]*	<<locked>>	62%	19667	44%	**73	80%
Alliant BULLSEYE	<<locked>>	61%	36840	82%	**49	100%
Alliant POWER PISTOL	<<locked>>	61%	29747	66%	**32	97%
Alliant UNIQUE	<<locked>>	61%	29747	66%	**47	100%
Baschieri & Pellagri 100	<<locked>>	61%	31343	70%	**55	100%
Hodgdon Clays	<<locked>>	61%	32779	73%	**80	100%
[Hodgdon LilGun]*	<<locked>>	86%	29805	66%	**04	81%
Hodgdon Universal	<<locked>>	61%	33489	74%	**44	100%
Hodgdon TrailBoss	<<locked>>	60%	10211	23%	**3	100%
Lovex D037.1	<<locked>>	61%	32793	73%	**01	92%
[Lovex D037.2]*	<<locked>>	61%	25469	57%	**21	81%
Lovex S020	<<locked>>	61%	34461	77%	**86	100%
Maxam CSB 1	<<locked>>	61%	27006	60%	**22	100%
Maxam CSB 2	<<locked>>	61%	30226	67%	**71	100%
Maxam CSB 3	<<locked>>	61%	29747	66%	**55	100%
Maxam CSB 4	<<locked>>	61%	31662	70%	**62	100%
Maxam CSB 5	<<locked>>	61%	34548	77%	**52	100%
[Ramshot Enforcer]*	<<locked>>	73%	28036	62%	**09	81%
ReloadSwiss RS 12	<<locked>>	61%	38174	85%	**73	100%
ReloadSwiss RS 14	<<locked>>	61%	9776	22%	**3	100%
ReloadSwiss RS 20	<<locked>>	61%	28921	64%	**14	100%
ReloadSwiss RS 24	<<locked>>	61%	27224	61%	**70	91%
Rottweil P 806	<<locked>>	61%	24598	55%	**04	98%
SNPE Vectan A0	<<locked>>	61%	26876	60%	**52	100%
SNPE Vectan BA 9	<<locked>>	61%	31937	71%	**17	100%
SNPE Vectan BA10	<<locked>>	61%	34664	77%	**22	100%
SNPE Vectan BA7 1/2	<<locked>>	61%	23728	53%	**45	99%
SNPE Vectan BA9 1/2	<<locked>>	61%	31647	70%	**14	100%
[Shooters World Heavy Pistol]*	<<locked>>	61%	25469	57%	**21	81%
Shooters World Major Pistol	<<locked>>	61%	32793	73%	**01	92%
Somchem MP200	<<locked>>	61%	34156	76%	**09	100%
Somchem MS200	<<locked>>	61%	30545	68%	**27	100%
Vihtavuori 3N37	<<locked>>	61%	28036	62%	**40	100%
[Vihtavuori 3N38]*	<<locked>>	61%	20537	46%	**99	87%
[Vihtavuori N105]*	<<locked>>	61%	16940	38%	**43	86%
[Vihtavuori N110]*	<<locked>>	93%	28979	64%	**39	80%
Vihtavuori N320	<<locked>>	61%	33402	74%	**88	100%
Vihtavuori N32C Tin Star	<<locked>>	61%	20276	45%	**99	100%
Vihtavuori N330	<<locked>>	61%	33460	74%	**37	100%
Vihtavuori N340	<<locked>>	61%	29936	67%	**27	100%
Vihtavuori N350	<<locked>>	61%	26165	58%	**07	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