Load data for .357 Magnum + .356 | 123gr | LOS FP

Recommended Powder(s):

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.356 \| 123gr \| LOS FP
Bullet Weight:	123gr \| 8.0g
Bullet Diameter:	0.356" \| 9.04mm
Bullet Length:	<<locked>>
Caliber:	.357 Magnum load data
Case Length (l3):	1.290" \| 32.8mm
Cartridge Length (C.O.L.):	<<locked>>
Seated Depth:	<<locked>>
Shank Seated Depth:	<<locked>>
Case Capacity:	25.6 Grains of Water \| 1.66 cm³
Primer Size:	Small Pistol Magnum (SPM)
Max. allowed Pressure:	43511 psi \| 3000 bar
LID:	LID_B3509_C513
Last updated:	2026-03-08

Load data for 136 loads in caliber .357 Magnum with .356 | 123gr | LOS FP bullet and 68 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%	36666	84%	**39	98%
ADI AP 70N	<<locked>>	68%	38435	88%	**40	100%
ADI APS 350	<<locked>>	77%	38870	89%	**60	100%
ADI APS 450	<<locked>>	77%	38159	88%	**86	100%
ADI AS 30	<<locked>>	78%	38072	88%	**29	100%
ADI AS 50N	<<locked>>	74%	37652	87%	**75	100%
Accurate No. 2	<<locked>>	76%	38885	89%	**76	100%
Accurate No. 7	<<locked>>	77%	38305	88%	**08	91%
[Accurate No. 9]*	<<locked>>	86%	38914	89%	**01	85%
Accurate Solo 1000	<<locked>>	78%	38377	88%	**68	100%
Accurate Solo 1250	<<locked>>	83%	38928	89%	**30	100%
[Accurate TCM]*	<<locked>>	86%	38885	89%	**94	86%
Alliant BE-86	<<locked>>	81%	39001	90%	**14	100%
[Alliant BLUE DOT]*	<<locked>>	97%	35462	81%	**58	88%
Alliant BULLSEYE	<<locked>>	73%	39001	90%	**09	100%
Alliant Herco 👍	<<locked>>	96%	37739	87%	**90	100%
Alliant POWER PISTOL	<<locked>>	82%	38928	89%	**17	98%
Alliant RED DOT	<<locked>>	81%	38696	89%	**55	100%
Alliant Sport Pistol	<<locked>>	68%	39001	90%	**12	100%
Alliant UNIQUE	<<locked>>	82%	38522	89%	**12	100%
Baschieri & Pellagri 100	<<locked>>	78%	38232	88%	**65	100%
Baschieri & Pellagri 102 Pistol	<<locked>>	97%	37927	87%	**78	100%
Baschieri & Pellagri 103 Pistol	<<locked>>	74%	38566	89%	**91	100%
Hodgdon Clays	<<locked>>	75%	38130	88%	**63	100%
Hodgdon HS-6	<<locked>>	68%	38899	89%	**49	100%
Hodgdon Longshot	<<locked>>	64%	37840	87%	**22	100%
Hodgdon Universal	<<locked>>	75%	38435	88%	**40	100%
Hodgdon CFE Pistol	<<locked>>	78%	38334	88%	**37	100%
Hodgdon TrailBoss	<<locked>>	95%	15940	37%	**8	100%
Lovex D037.1	<<locked>>	77%	38305	88%	**08	91%
[Lovex D037.2]*	<<locked>>	85%	38914	89%	**01	85%
Lovex S011	<<locked>>	67%	38696	89%	**01	100%
Lovex S020	<<locked>>	74%	37971	87%	**57	100%
Maxam CSB 1	<<locked>>	85%	37797	87%	**11	100%
Maxam CSB 2	<<locked>>	81%	38116	88%	**21	100%
Maxam CSB 3	<<locked>>	81%	38595	89%	**98	100%
Maxam CSB 4	<<locked>>	78%	38319	88%	**71	100%
Maxam CSB 5	<<locked>>	74%	38986	90%	**32	100%
Ramshot Silhouette	<<locked>>	68%	39088	90%	**19	100%
Ramshot True Blue	<<locked>>	63%	38130	88%	**22	100%
ReloadSwiss RS 12	<<locked>>	71%	38899	89%	**11	100%
ReloadSwiss RS 14	<<locked>>	96%	15098	35%	**4	100%
ReloadSwiss RS 20	<<locked>>	83%	38116	88%	**90	100%
ReloadSwiss RS 24	<<locked>>	84%	37942	87%	**94	93%
Rottweil P 801	<<locked>>	67%	38754	89%	**75	100%
Rottweil P 806	<<locked>>	89%	38972	90%	**31	100%
SNPE Vectan A0	<<locked>>	86%	38754	89%	**67	100%
SNPE Vectan BA 9	<<locked>>	78%	38827	89%	**34	100%
SNPE Vectan BA10	<<locked>>	72%	38145	88%	**86	100%
SNPE Vectan BA7 1/2 👍	<<locked>>	90%	38261	88%	**19	100%
SNPE Vectan BA9 1/2	<<locked>>	78%	38087	88%	**34	100%
SNPE Vectan SP 2	<<locked>>	77%	39059	90%	**21	99%
[Shooters World Heavy Pistol]*	<<locked>>	85%	38914	89%	**01	85%
Shooters World Major Pistol	<<locked>>	77%	38305	88%	**08	91%
Somchem MP200	<<locked>>	76%	38624	89%	**99	100%
Somchem MS200	<<locked>>	80%	37927	87%	**60	100%
Somchem S221	<<locked>>	71%	38972	90%	**81	96%
Vihtavuori 3N37 👍	<<locked>>	83%	38479	88%	**42	100%
Vihtavuori 3N38	<<locked>>	95%	38827	89%	**85	94%
Vihtavuori N105	<<locked>>	96%	31125	72%	**29	95%
Vihtavuori N310	<<locked>>	63%	38363	88%	**86	100%
Vihtavuori N320	<<locked>>	75%	38174	88%	**78	100%
Vihtavuori N32C Tin Star	<<locked>>	95%	33939	78%	**47	100%
Vihtavuori N330	<<locked>>	77%	38899	89%	**44	100%
Vihtavuori N340	<<locked>>	81%	39088	90%	**83	100%
Vihtavuori N350 👍	<<locked>>	85%	37681	87%	**22	100%
Winchester 231	<<locked>>	65%	38493	88%	**21	100%
Winchester AutoComp	<<locked>>	83%	38522	89%	**50	100%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AP 100]*	<<locked>>	61%	14547	33%	**56	83%
ADI AP 70N	<<locked>>	60%	30908	71%	**39	100%
ADI APS 350	<<locked>>	61%	27688	64%	**15	100%
ADI APS 450	<<locked>>	61%	26614	61%	**29	100%
ADI AS 30	<<locked>>	60%	24990	57%	**45	100%
ADI AS 50N	<<locked>>	61%	27543	63%	**30	100%
Accurate No. 2	<<locked>>	61%	24265	56%	**50	100%
[Accurate No. 7]*	<<locked>>	62%	21944	50%	**02	80%
[Accurate No. 9]*	<<locked>>	79%	30821	71%	**73	80%
Accurate Solo 1000	<<locked>>	61%	25614	59%	**88	100%
Accurate Solo 1250	<<locked>>	61%	22089	51%	**84	100%
[Accurate TCM]*	<<locked>>	77%	28601	66%	**24	80%
Alliant BE-86	<<locked>>	61%	22611	52%	**88	100%
[Alliant BLUE DOT]*	<<locked>>	82%	24265	56%	**42	81%
Alliant BULLSEYE	<<locked>>	61%	27818	64%	**48	100%
Alliant Herco	<<locked>>	61%	16433	38%	**99	98%
[Alliant POWER PISTOL]*	<<locked>>	61%	20987	48%	**70	89%
Alliant RED DOT	<<locked>>	61%	24221	56%	**52	100%
Alliant Sport Pistol	<<locked>>	61%	31415	72%	**07	100%
Alliant UNIQUE	<<locked>>	61%	22118	51%	**43	100%
Baschieri & Pellagri 100	<<locked>>	61%	24700	57%	**78	100%
Baschieri & Pellagri 102 Pistol	<<locked>>	61%	15751	36%	**27	100%
Baschieri & Pellagri 103 Pistol	<<locked>>	61%	26513	61%	**34	100%
Hodgdon Clays	<<locked>>	61%	28195	65%	**32	100%
Hodgdon HS-6	<<locked>>	61%	31212	72%	**34	99%
Hodgdon Longshot	<<locked>>	61%	34389	79%	**80	100%
Hodgdon Universal	<<locked>>	61%	26469	61%	**70	100%
Hodgdon CFE Pistol	<<locked>>	61%	24018	55%	**27	100%
Hodgdon TrailBoss	<<locked>>	71%	10283	24%	**0	100%
[Lovex D037.1]*	<<locked>>	62%	21944	50%	**02	80%
[Lovex D037.2]*	<<locked>>	79%	30821	71%	**73	80%
Lovex S011	<<locked>>	61%	31720	73%	**16	100%
Lovex S020	<<locked>>	61%	25425	58%	**80	100%
Maxam CSB 1	<<locked>>	60%	20204	46%	**42	100%
Maxam CSB 2	<<locked>>	62%	22800	52%	**01	100%
Maxam CSB 3	<<locked>>	60%	23003	53%	**75	100%
Maxam CSB 4	<<locked>>	62%	25657	59%	**98	100%
Maxam CSB 5	<<locked>>	61%	27876	64%	**88	100%
Ramshot Silhouette	<<locked>>	61%	31024	71%	**01	100%
Ramshot True Blue	<<locked>>	61%	35795	82%	**86	100%
ReloadSwiss RS 12	<<locked>>	62%	29791	68%	**93	100%
ReloadSwiss RS 14	<<locked>>	69%	9369	22%	**3	100%
ReloadSwiss RS 20	<<locked>>	61%	20523	47%	**20	100%
[ReloadSwiss RS 24]*	<<locked>>	61%	18927	43%	**14	80%
Rottweil P 801	<<locked>>	61%	33533	77%	**12	100%
Rottweil P 806	<<locked>>	61%	15461	36%	**71	90%
SNPE Vectan A0	<<locked>>	61%	20929	48%	**81	100%
SNPE Vectan BA 9	<<locked>>	61%	24424	56%	**30	100%
SNPE Vectan BA10	<<locked>>	60%	28979	67%	**68	100%
SNPE Vectan BA7 1/2	<<locked>>	61%	17651	41%	**35	93%
SNPE Vectan BA9 1/2	<<locked>>	61%	24236	56%	**34	100%
SNPE Vectan SP 2	<<locked>>	61%	22582	52%	**22	92%
[Shooters World Heavy Pistol]*	<<locked>>	79%	30821	71%	**73	80%
[Shooters World Major Pistol]*	<<locked>>	62%	21944	50%	**02	80%
Somchem MP200	<<locked>>	61%	25425	58%	**99	100%
Somchem MS200	<<locked>>	62%	23583	54%	**40	100%
Somchem S221	<<locked>>	61%	28268	65%	**11	92%
Vihtavuori 3N37	<<locked>>	60%	19711	45%	**11	96%
[Vihtavuori 3N38]*	<<locked>>	68%	17825	41%	**84	80%
[Vihtavuori N105]*	<<locked>>	72%	15606	36%	**65	81%
Vihtavuori N310	<<locked>>	61%	36796	85%	**70	100%
Vihtavuori N320	<<locked>>	61%	26136	60%	**17	100%
Vihtavuori N32C Tin Star	<<locked>>	61%	15650	36%	**1	100%
Vihtavuori N330	<<locked>>	60%	23917	55%	**37	100%
Vihtavuori N340	<<locked>>	61%	21901	50%	**14	100%
Vihtavuori N350	<<locked>>	62%	18724	43%	**84	95%
Winchester 231	<<locked>>	60%	33475	77%	**55	100%
Winchester AutoComp	<<locked>>	61%	21538	50%	**91	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