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

Recommended Powder(s):

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.356 \| 123gr \| LOS RN
Bullet Weight:	123gr \| 8.0g
Bullet Diameter:	0.356" \| 9.04mm
Bullet Length:	0.580" \| 14.7mm
Caliber:	.357 Magnum load data
Case Length (l3):	1.290" \| 32.8mm
Cartridge Length (C.O.L.):	1.566" \| 39.8mm
Seated Depth:	0.304" \| 7.7mm
Shank Seated Depth:	0.304" \| 7.7mm
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_B3508_C513
Last updated:	2026-01-24

Load data for 128 loads in caliber .357 Magnum with .356 | 123gr | LOS RN bullet and 64 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>>	96%	35302	81%	**12	97%
ADI AP 70N	<<locked>>	68%	37913	87%	**37	100%
ADI APS 350	<<locked>>	76%	38421	88%	**50	100%
ADI APS 450	<<locked>>	79%	39030	90%	**86	100%
ADI AS 30	<<locked>>	79%	38754	89%	**32	100%
ADI AS 50N	<<locked>>	75%	38566	89%	**81	100%
Accurate No. 2	<<locked>>	76%	38406	88%	**63	100%
Accurate No. 7	<<locked>>	78%	38653	89%	**14	91%
[Accurate No. 9]*	<<locked>>	86%	38203	88%	**91	84%
Accurate Solo 1000	<<locked>>	77%	37797	87%	**52	100%
Accurate Solo 1250	<<locked>>	83%	38435	88%	**27	100%
[Accurate TCM]*	<<locked>>	87%	38812	89%	**94	86%
[Alliant BLUE DOT]*	<<locked>>	96%	34214	79%	**22	87%
Alliant BULLSEYE	<<locked>>	73%	38696	89%	**99	100%
Alliant POWER PISTOL	<<locked>>	82%	38551	89%	**08	98%
Alliant Sport Pistol	<<locked>>	68%	38566	89%	**99	100%
Alliant UNIQUE	<<locked>>	82%	38145	88%	**99	100%
Baschieri & Pellagri 100	<<locked>>	78%	37710	87%	**58	100%
Baschieri & Pellagri 102 Pistol	<<locked>>	97%	37492	86%	**68	100%
Baschieri & Pellagri 103 Pistol	<<locked>>	74%	38464	88%	**85	100%
Hodgdon Clays	<<locked>>	76%	39102	90%	**66	100%
Hodgdon HS-6	<<locked>>	68%	38696	89%	**42	100%
Hodgdon Longshot	<<locked>>	65%	38885	89%	**32	100%
Hodgdon Universal	<<locked>>	75%	37913	87%	**37	100%
Hodgdon CFE Pistol	<<locked>>	78%	38189	88%	**27	100%
Hodgdon TrailBoss	<<locked>>	97%	16186	37%	**8	100%
Lovex D037.1	<<locked>>	78%	38653	89%	**14	91%
[Lovex D037.2]*	<<locked>>	85%	38203	88%	**91	84%
Lovex S011	<<locked>>	67%	38159	88%	**88	100%
Lovex S020	<<locked>>	75%	38798	89%	**63	100%
Maxam CSB 1	<<locked>>	87%	38943	89%	**17	100%
Maxam CSB 2	<<locked>>	83%	39131	90%	**30	100%
Maxam CSB 3	<<locked>>	81%	38276	88%	**94	100%
Maxam CSB 4	<<locked>>	77%	37913	87%	**68	100%
Maxam CSB 5	<<locked>>	74%	38305	88%	**16	100%
Ramshot Silhouette	<<locked>>	69%	38870	89%	**12	100%
Ramshot True Blue	<<locked>>	63%	38101	88%	**16	100%
ReloadSwiss RS 12	<<locked>>	71%	38537	89%	**98	100%
ReloadSwiss RS 14	<<locked>>	95%	14504	33%	**1	100%
ReloadSwiss RS 20	<<locked>>	85%	39073	90%	**99	100%
ReloadSwiss RS 24	<<locked>>	84%	37898	87%	**91	93%
Rottweil P 801	<<locked>>	66%	38189	88%	**58	100%
Rottweil P 806	<<locked>>	89%	37724	87%	**01	100%
SNPE Vectan A0	<<locked>>	86%	38450	88%	**57	100%
SNPE Vectan BA 9	<<locked>>	78%	38493	88%	**24	100%
SNPE Vectan BA10	<<locked>>	73%	39015	90%	**86	100%
SNPE Vectan BA7 1/2 👍	<<locked>>	90%	37971	87%	**09	100%
SNPE Vectan BA9 1/2	<<locked>>	79%	38957	90%	**40	100%
SNPE Vectan SP 2	<<locked>>	78%	39030	90%	**17	99%
[Shooters World Heavy Pistol]*	<<locked>>	85%	38203	88%	**91	84%
Shooters World Major Pistol	<<locked>>	78%	38653	89%	**14	91%
Somchem MP200	<<locked>>	76%	38334	88%	**90	100%
Somchem MS200	<<locked>>	81%	38899	89%	**70	100%
Somchem S221	<<locked>>	71%	38101	88%	**62	96%
Vihtavuori 3N37 👍	<<locked>>	83%	38421	88%	**35	100%
Vihtavuori 3N38	<<locked>>	96%	38711	89%	**81	94%
Vihtavuori N105	<<locked>>	96%	31009	71%	**26	95%
Vihtavuori N310	<<locked>>	64%	39088	90%	**89	100%
Vihtavuori N320	<<locked>>	76%	39073	90%	**81	100%
Vihtavuori N32C Tin Star	<<locked>>	95%	33518	77%	**34	100%
Vihtavuori N330	<<locked>>	77%	38392	88%	**40	100%
Vihtavuori N340	<<locked>>	82%	38711	89%	**73	100%
Vihtavuori N350 👍	<<locked>>	87%	38812	89%	**35	100%
Winchester 231	<<locked>>	65%	38043	87%	**07	100%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AP 100]*	<<locked>>	61%	14185	33%	**43	82%
ADI AP 70N	<<locked>>	62%	31531	72%	**48	100%
ADI APS 350	<<locked>>	60%	27050	62%	**02	100%
ADI APS 450	<<locked>>	61%	25933	60%	**15	100%
ADI AS 30	<<locked>>	61%	25454	59%	**52	100%
ADI AS 50N	<<locked>>	61%	26847	62%	**17	100%
Accurate No. 2	<<locked>>	60%	23815	55%	**40	100%
[Accurate No. 7]*	<<locked>>	63%	22539	52%	**19	81%
[Accurate No. 9]*	<<locked>>	81%	31778	73%	**80	81%
Accurate Solo 1000	<<locked>>	61%	24990	57%	**75	100%
Accurate Solo 1250	<<locked>>	61%	21553	50%	**71	100%
[Accurate TCM]*	<<locked>>	78%	28877	66%	**27	80%
[Alliant BLUE DOT]*	<<locked>>	82%	23873	55%	**32	80%
Alliant BULLSEYE	<<locked>>	60%	27180	62%	**25	100%
[Alliant POWER PISTOL]*	<<locked>>	61%	20798	48%	**57	88%
Alliant Sport Pistol	<<locked>>	61%	30879	71%	**91	100%
Alliant UNIQUE	<<locked>>	61%	21669	50%	**30	100%
Baschieri & Pellagri 100	<<locked>>	61%	23989	55%	**65	100%
Baschieri & Pellagri 102 Pistol	<<locked>>	60%	15287	35%	**17	100%
Baschieri & Pellagri 103 Pistol	<<locked>>	61%	26266	60%	**24	100%
Hodgdon Clays	<<locked>>	60%	27383	63%	**22	100%
Hodgdon HS-6	<<locked>>	61%	30864	71%	**24	99%
Hodgdon Longshot	<<locked>>	61%	34258	79%	**73	100%
Hodgdon Universal	<<locked>>	61%	25730	59%	**57	100%
Hodgdon CFE Pistol	<<locked>>	60%	23685	54%	**20	100%
Hodgdon TrailBoss	<<locked>>	72%	10341	24%	**3	100%
[Lovex D037.1]*	<<locked>>	63%	22539	52%	**19	81%
[Lovex D037.2]*	<<locked>>	80%	31778	73%	**80	81%
Lovex S011	<<locked>>	60%	31227	72%	**99	100%
Lovex S020	<<locked>>	62%	25962	60%	**80	100%
Maxam CSB 1	<<locked>>	61%	20697	48%	**48	100%
Maxam CSB 2	<<locked>>	61%	22365	51%	**91	100%
Maxam CSB 3	<<locked>>	61%	23656	54%	**81	100%
Maxam CSB 4	<<locked>>	61%	25019	57%	**88	100%
Maxam CSB 5	<<locked>>	62%	28616	66%	**94	100%
Ramshot Silhouette	<<locked>>	61%	30690	71%	**91	100%
Ramshot True Blue	<<locked>>	61%	35665	82%	**80	100%
ReloadSwiss RS 12	<<locked>>	61%	29443	68%	**86	100%
ReloadSwiss RS 14	<<locked>>	71%	9500	22%	**3	100%
ReloadSwiss RS 20	<<locked>>	61%	20102	46%	**04	100%
[ReloadSwiss RS 24]*	<<locked>>	62%	19363	45%	**17	80%
Rottweil P 801	<<locked>>	61%	33040	76%	**99	100%
[Rottweil P 806]*	<<locked>>	61%	14678	34%	**42	88%
SNPE Vectan A0	<<locked>>	61%	20392	47%	**68	100%
SNPE Vectan BA 9	<<locked>>	60%	24062	55%	**14	100%
SNPE Vectan BA10	<<locked>>	62%	29675	68%	**71	100%
SNPE Vectan BA7 1/2	<<locked>>	61%	17303	40%	**25	92%
SNPE Vectan BA9 1/2	<<locked>>	61%	23757	55%	**14	100%
SNPE Vectan SP 2	<<locked>>	61%	22263	51%	**22	92%
[Shooters World Heavy Pistol]*	<<locked>>	80%	31778	73%	**80	81%
[Shooters World Major Pistol]*	<<locked>>	63%	22539	52%	**19	81%
Somchem MP200	<<locked>>	61%	24947	57%	**83	100%
Somchem MS200	<<locked>>	61%	23018	53%	**30	100%
Somchem S221	<<locked>>	61%	27224	63%	**78	91%
Vihtavuori 3N37	<<locked>>	62%	20131	46%	**24	96%
[Vihtavuori 3N38]*	<<locked>>	70%	18144	42%	**84	80%
[Vihtavuori N105]*	<<locked>>	73%	15461	36%	**52	80%
Vihtavuori N310	<<locked>>	61%	36027	83%	**53	100%
Vihtavuori N320	<<locked>>	60%	25469	59%	**04	100%
Vihtavuori N32C Tin Star	<<locked>>	62%	15911	37%	**1	100%
Vihtavuori N330	<<locked>>	61%	24352	56%	**43	100%
Vihtavuori N340	<<locked>>	60%	21480	49%	**04	100%
Vihtavuori N350	<<locked>>	61%	18449	42%	**78	95%
Winchester 231	<<locked>>	62%	34069	78%	**58	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