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:	2026-03-24

Load data for 134 loads in caliber .357 Magnum with .356 | 123gr | LOS FP bullet and 67 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%	37724	87%	**39	98%
ADI AP 70N	<<locked>>	67%	38711	89%	**30	100%
ADI APS 350	<<locked>>	75%	38029	87%	**43	100%
ADI APS 450	<<locked>>	77%	38725	89%	**86	100%
ADI AS 30	<<locked>>	78%	39102	90%	**35	100%
ADI AS 50N	<<locked>>	74%	38957	90%	**75	100%
Accurate No. 2	<<locked>>	75%	38348	88%	**63	100%
Accurate No. 7	<<locked>>	76%	38943	89%	**17	91%
[Accurate No. 9]*	<<locked>>	85%	38101	88%	**88	85%
Accurate Solo 1000	<<locked>>	76%	37739	87%	**52	100%
Accurate Solo 1250	<<locked>>	81%	38522	89%	**17	100%
[Accurate TCM]*	<<locked>>	84%	38043	87%	**81	86%
Alliant BE-86	<<locked>>	79%	38870	89%	**04	100%
[Alliant BLUE DOT]*	<<locked>>	97%	36985	85%	**68	89%
Alliant BULLSEYE	<<locked>>	72%	38609	89%	**99	100%
Alliant Herco 👍	<<locked>>	95%	38130	88%	**86	100%
Alliant POWER PISTOL	<<locked>>	81%	38986	90%	**14	98%
Alliant RED DOT	<<locked>>	79%	38348	88%	**48	100%
Alliant Sport Pistol	<<locked>>	67%	38740	89%	**03	100%
Alliant UNIQUE	<<locked>>	81%	38740	89%	**06	100%
Baschieri & Pellagri 100	<<locked>>	77%	37913	87%	**62	100%
Baschieri & Pellagri 102 Pistol	<<locked>>	95%	38043	87%	**68	100%
Baschieri & Pellagri 103 Pistol	<<locked>>	73%	38696	89%	**85	100%
Hodgdon Clays	<<locked>>	75%	38798	89%	**66	100%
Hodgdon HS-6	<<locked>>	67%	38972	90%	**32	100%
Hodgdon Longshot	<<locked>>	63%	37811	87%	**16	100%
Hodgdon Universal	<<locked>>	74%	38711	89%	**30	100%
Hodgdon CFE Pistol	<<locked>>	77%	38508	88%	**30	100%
Hodgdon TrailBoss	<<locked>>	95%	17085	39%	**4	100%
Lovex D037.1	<<locked>>	76%	38943	89%	**17	91%
[Lovex D037.2]*	<<locked>>	84%	38101	88%	**88	85%
Lovex S011	<<locked>>	66%	38203	88%	**88	100%
Lovex S020	<<locked>>	74%	39088	90%	**63	100%
Maxam CSB 1	<<locked>>	85%	39015	90%	**21	100%
Maxam CSB 2	<<locked>>	80%	38493	88%	**14	100%
Maxam CSB 3	<<locked>>	79%	38711	89%	**88	100%
Maxam CSB 4	<<locked>>	76%	37898	87%	**58	100%
Maxam CSB 5	<<locked>>	72%	38276	88%	**16	100%
[Ramshot Enforcer]*	<<locked>>	97%	38493	88%	**14	82%
Ramshot Silhouette	<<locked>>	67%	38885	89%	**03	100%
ReloadSwiss RS 12	<<locked>>	68%	38014	87%	**88	100%
ReloadSwiss RS 14	<<locked>>	96%	16375	38%	**14	100%
ReloadSwiss RS 20	<<locked>>	82%	38174	88%	**83	100%
ReloadSwiss RS 24	<<locked>>	83%	38174	88%	**94	93%
Rottweil P 801	<<locked>>	65%	38914	89%	**62	100%
Rottweil P 806	<<locked>>	87%	39059	90%	**14	100%
SNPE Vectan A0	<<locked>>	84%	38522	89%	**57	100%
SNPE Vectan BA 9	<<locked>>	77%	38493	88%	**24	100%
SNPE Vectan BA10	<<locked>>	72%	38711	89%	**86	100%
SNPE Vectan BA7 1/2	<<locked>>	89%	38203	88%	**12	100%
SNPE Vectan BA9 1/2	<<locked>>	78%	39088	90%	**30	100%
SNPE Vectan SP 2	<<locked>>	75%	38479	88%	**01	99%
[Shooters World Heavy Pistol]*	<<locked>>	84%	38101	88%	**88	85%
Shooters World Major Pistol	<<locked>>	76%	38943	89%	**17	91%
Somchem MP200	<<locked>>	75%	38595	89%	**93	100%
Somchem MS200	<<locked>>	80%	39131	90%	**70	100%
Somchem S221	<<locked>>	69%	38943	89%	**72	96%
Vihtavuori 3N37 👍	<<locked>>	82%	38783	89%	**39	100%
Vihtavuori 3N38	<<locked>>	94%	39015	90%	**85	94%
Vihtavuori N105	<<locked>>	96%	32721	75%	**55	96%
Vihtavuori N320	<<locked>>	73%	38043	87%	**65	100%
Vihtavuori N32C Tin Star	<<locked>>	95%	35418	81%	**57	100%
Vihtavuori N330	<<locked>>	76%	39059	90%	**37	100%
Vihtavuori N340	<<locked>>	80%	38972	90%	**73	100%
Vihtavuori N350 👍	<<locked>>	84%	37565	86%	**16	100%
Winchester 231	<<locked>>	64%	38305	88%	**11	100%
Winchester AutoComp	<<locked>>	82%	38841	89%	**34	100%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AP 100]*	<<locked>>	61%	15592	36%	**83	84%
ADI AP 70N	<<locked>>	60%	32169	74%	**52	100%
ADI APS 350	<<locked>>	61%	28355	65%	**22	100%
ADI APS 450	<<locked>>	61%	27166	62%	**32	100%
ADI AS 30	<<locked>>	60%	26107	60%	**55	100%
ADI AS 50N	<<locked>>	61%	28587	66%	**40	100%
Accurate No. 2	<<locked>>	61%	25353	58%	**66	100%
[Accurate No. 7]*	<<locked>>	61%	22814	52%	**16	81%
[Accurate No. 9]*	<<locked>>	78%	31459	72%	**70	81%
Accurate Solo 1000	<<locked>>	61%	26571	61%	**94	100%
Accurate Solo 1250	<<locked>>	61%	23076	53%	**94	100%
[Accurate TCM]*	<<locked>>	75%	28572	66%	**17	80%
Alliant BE-86	<<locked>>	61%	23859	55%	**98	100%
[Alliant BLUE DOT]*	<<locked>>	80%	24163	56%	**29	81%
Alliant BULLSEYE	<<locked>>	61%	28747	66%	**48	100%
Alliant Herco	<<locked>>	61%	17637	41%	**22	99%
Alliant POWER PISTOL	<<locked>>	61%	22394	51%	**89	90%
Alliant RED DOT	<<locked>>	61%	25469	59%	**61	100%
Alliant Sport Pistol	<<locked>>	61%	32401	74%	**17	100%
Alliant UNIQUE	<<locked>>	61%	23511	54%	**57	100%
Baschieri & Pellagri 100	<<locked>>	61%	25730	59%	**88	100%
Baschieri & Pellagri 102 Pistol	<<locked>>	61%	16969	39%	**43	100%
Baschieri & Pellagri 103 Pistol	<<locked>>	61%	27717	64%	**43	100%
Hodgdon Clays	<<locked>>	61%	28906	66%	**35	100%
Hodgdon HS-6	<<locked>>	61%	32416	74%	**37	99%
Hodgdon Longshot	<<locked>>	61%	35679	82%	**83	100%
Hodgdon Universal	<<locked>>	61%	27789	64%	**83	100%
Hodgdon CFE Pistol	<<locked>>	61%	25309	58%	**43	100%
Hodgdon TrailBoss	<<locked>>	68%	10878	25%	**7	100%
[Lovex D037.1]*	<<locked>>	61%	22814	52%	**16	81%
[Lovex D037.2]*	<<locked>>	78%	31459	72%	**70	81%
Lovex S011	<<locked>>	61%	32735	75%	**16	100%
Lovex S020	<<locked>>	61%	26658	61%	**86	100%
Maxam CSB 1	<<locked>>	60%	21263	49%	**55	100%
Maxam CSB 2	<<locked>>	62%	24468	56%	**11	100%
Maxam CSB 3	<<locked>>	60%	24308	56%	**88	100%
Maxam CSB 4	<<locked>>	62%	26672	61%	**07	100%
Maxam CSB 5	<<locked>>	61%	28877	66%	**88	100%
[Ramshot Enforcer]*	<<locked>>	93%	34258	79%	**58	80%
Ramshot Silhouette	<<locked>>	61%	32126	74%	**14	100%
ReloadSwiss RS 12	<<locked>>	62%	31517	72%	**06	100%
ReloadSwiss RS 14	<<locked>>	67%	10211	23%	**7	100%
ReloadSwiss RS 20	<<locked>>	61%	21698	50%	**30	100%
[ReloadSwiss RS 24]*	<<locked>>	61%	20146	46%	**34	81%
Rottweil P 801	<<locked>>	61%	35070	81%	**16	100%
Rottweil P 806	<<locked>>	61%	17245	40%	**04	92%
SNPE Vectan A0	<<locked>>	61%	21872	50%	**88	100%
SNPE Vectan BA 9	<<locked>>	61%	25411	58%	**34	100%
SNPE Vectan BA10	<<locked>>	60%	29718	68%	**71	100%
SNPE Vectan BA7 1/2	<<locked>>	61%	18666	43%	**48	94%
SNPE Vectan BA9 1/2	<<locked>>	61%	25440	58%	**37	100%
SNPE Vectan SP 2	<<locked>>	61%	24497	56%	**52	94%
[Shooters World Heavy Pistol]*	<<locked>>	78%	31459	72%	**70	81%
[Shooters World Major Pistol]*	<<locked>>	61%	22814	52%	**16	81%
Somchem MP200	<<locked>>	61%	26556	61%	**06	100%
Somchem MS200	<<locked>>	62%	24584	57%	**53	100%
Somchem S221	<<locked>>	61%	29907	69%	**27	92%
Vihtavuori 3N37	<<locked>>	60%	21074	48%	**30	96%
[Vihtavuori 3N38]*	<<locked>>	66%	18086	42%	**71	80%
[Vihtavuori N105]*	<<locked>>	69%	15273	35%	**38	80%
Vihtavuori N320	<<locked>>	61%	27456	63%	**24	100%
Vihtavuori N32C Tin Star	<<locked>>	61%	17100	39%	**1	100%
Vihtavuori N330	<<locked>>	60%	25222	58%	**50	100%
Vihtavuori N340	<<locked>>	61%	23134	53%	**34	100%
Vihtavuori N350	<<locked>>	62%	19885	46%	**01	96%
Winchester 231	<<locked>>	60%	34301	79%	**62	100%
Winchester AutoComp	<<locked>>	61%	22829	52%	**01	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