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

Recommended Powder(s): Alliant POWER PISTOL, Rottweil P 806

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 Maximum load data
Case Length (l3):	1.600" \| 40.6mm
Cartridge Length (C.O.L.):	1.960" \| 49.8mm
Seated Depth:	0.220" \| 5.6mm
Shank Seated Depth:	0.220" \| 5.6mm
Case Capacity:	33.6 Grains of Water \| 2.18 cm³
Primer Size:	Small Pistol (SP)
Max. allowed Pressure:	44962 psi \| 3100 bar
LID:	LID_B3508_C515
Last updated:	2025-01-01

Load data for 108 loads in caliber .357 Maximum with .356 | 123gr | LOS RN bullet and 54 powders such as Alliant POWER PISTOL, Rottweil P 806. 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>>	87%	39595	88%	**60	100%
ADI APS 350	<<locked>>	71%	39146	87%	**62	100%
ADI APS 450	<<locked>>	72%	39102	87%	**88	100%
ADI AS 30	<<locked>>	73%	40321	90%	**44	100%
ADI AS 50N	<<locked>>	68%	39392	88%	**73	100%
[Accurate 4100]*	<<locked>>	88%	39653	88%	**06	83%
Accurate No. 2	<<locked>>	68%	39914	89%	**78	100%
Accurate No. 7	<<locked>>	67%	39871	89%	**19	95%
[Accurate No. 9]*	<<locked>>	75%	39233	87%	**99	89%
Accurate Solo 1000	<<locked>>	72%	40437	90%	**73	100%
Accurate Solo 1250	<<locked>>	73%	38493	86%	**06	100%
Accurate TCM	<<locked>>	75%	39581	88%	**99	91%
[Alliant 2400]*	<<locked>>	85%	39726	88%	**39	87%
Alliant BLUE DOT	<<locked>>	87%	39189	87%	**99	93%
Alliant BULLSEYE	<<locked>>	65%	39595	88%	**98	100%
Alliant POWER PISTOL 👍	<<locked>>	71%	39378	88%	**99	99%
Alliant UNIQUE	<<locked>>	72%	38899	87%	**85	100%
Baschieri & Pellagri 100	<<locked>>	71%	39523	88%	**67	100%
Hodgdon Clays	<<locked>>	71%	40161	89%	**88	100%
[Hodgdon LilGun]*	<<locked>>	95%	39189	87%	**78	86%
Hodgdon Universal	<<locked>>	67%	38914	87%	**22	100%
Hodgdon CFE Pistol	<<locked>>	70%	39552	88%	**22	100%
Hodgdon TrailBoss	<<locked>>	96%	20320	45%	**25	100%
Lovex D037.1	<<locked>>	67%	39871	89%	**19	95%
[Lovex D037.2]*	<<locked>>	75%	40059	89%	**09	89%
Lovex S020	<<locked>>	66%	39450	88%	**45	100%
Maxam CSB 1	<<locked>>	77%	40321	90%	**29	100%
Maxam CSB 2	<<locked>>	72%	39856	89%	**12	100%
Maxam CSB 3	<<locked>>	73%	40379	90%	**06	100%
Maxam CSB 4	<<locked>>	70%	38783	86%	**57	100%
Maxam CSB 5	<<locked>>	68%	40016	89%	**30	100%
[Ramshot Enforcer]*	<<locked>>	85%	39305	87%	**16	87%
ReloadSwiss RS 12	<<locked>>	63%	40205	89%	**90	100%
ReloadSwiss RS 14	<<locked>>	95%	19131	43%	**32	100%
ReloadSwiss RS 20	<<locked>>	74%	40074	89%	**85	100%
ReloadSwiss RS 24	<<locked>>	73%	39044	87%	**06	96%
Rottweil P 806 👍	<<locked>>	75%	39044	87%	**80	100%
SNPE Vectan A0	<<locked>>	76%	39610	88%	**65	100%
SNPE Vectan BA 9	<<locked>>	70%	39494	88%	**19	100%
SNPE Vectan BA10	<<locked>>	67%	39088	87%	**88	100%
SNPE Vectan BA7 1/2 👍	<<locked>>	80%	39987	89%	**24	100%
SNPE Vectan BA9 1/2	<<locked>>	70%	39508	88%	**26	100%
[Shooters World Heavy Pistol]*	<<locked>>	75%	40059	89%	**09	89%
Shooters World Major Pistol	<<locked>>	67%	39871	89%	**19	95%
Somchem MP200	<<locked>>	67%	39479	88%	**88	100%
Somchem MS200	<<locked>>	72%	39682	88%	**72	100%
Vihtavuori 3N37	<<locked>>	73%	40248	90%	**47	100%
Vihtavuori 3N38	<<locked>>	83%	39001	87%	**86	97%
Vihtavuori N105	<<locked>>	88%	39827	89%	**29	99%
Vihtavuori N320	<<locked>>	67%	38972	87%	**67	100%
Vihtavuori N32C Tin Star	<<locked>>	92%	38986	87%	**78	100%
Vihtavuori N330	<<locked>>	69%	39958	89%	**35	100%
Vihtavuori N340	<<locked>>	72%	39581	88%	**65	100%
Vihtavuori N350	<<locked>>	76%	39668	88%	**27	100%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
ADI AP 100	<<locked>>	61%	19624	44%	**70	92%
ADI APS 350	<<locked>>	61%	31444	70%	**50	100%
ADI APS 450	<<locked>>	61%	30124	67%	**66	100%
ADI AS 30	<<locked>>	61%	30661	68%	**12	100%
ADI AS 50N	<<locked>>	61%	33866	75%	**04	100%
[Accurate 4100]*	<<locked>>	84%	35520	79%	**44	81%
Accurate No. 2	<<locked>>	61%	32024	71%	**57	100%
Accurate No. 7	<<locked>>	61%	31241	69%	**72	91%
[Accurate No. 9]*	<<locked>>	62%	25077	56%	**30	80%
Accurate Solo 1000	<<locked>>	61%	31299	70%	**45	100%
Accurate Solo 1250	<<locked>>	61%	27920	62%	**55	100%
[Accurate TCM]*	<<locked>>	61%	24294	54%	**07	81%
[Alliant 2400]*	<<locked>>	76%	30226	67%	**42	80%
[Alliant BLUE DOT]*	<<locked>>	64%	20189	45%	**06	81%
Alliant BULLSEYE	<<locked>>	61%	35795	80%	**45	100%
Alliant POWER PISTOL	<<locked>>	61%	28674	64%	**16	97%
Alliant UNIQUE	<<locked>>	61%	28935	64%	**27	100%
Baschieri & Pellagri 100	<<locked>>	61%	30400	68%	**42	100%
Hodgdon Clays	<<locked>>	61%	32242	72%	**76	100%
[Hodgdon LilGun]*	<<locked>>	88%	30850	69%	**21	80%
Hodgdon Universal	<<locked>>	61%	33605	75%	**53	100%
Hodgdon CFE Pistol	<<locked>>	61%	31386	70%	**17	100%
Hodgdon TrailBoss	<<locked>>	60%	10327	23%	**6	100%
Lovex D037.1	<<locked>>	61%	31241	69%	**72	91%
[Lovex D037.2]*	<<locked>>	62%	25744	57%	**47	81%
Lovex S020	<<locked>>	61%	33591	75%	**70	100%
Maxam CSB 1	<<locked>>	61%	26818	60%	**25	100%
Maxam CSB 2	<<locked>>	61%	29356	65%	**58	100%
Maxam CSB 3	<<locked>>	61%	29515	66%	**52	100%
Maxam CSB 4	<<locked>>	61%	31270	70%	**58	100%
Maxam CSB 5	<<locked>>	61%	34200	76%	**48	100%
[Ramshot Enforcer]*	<<locked>>	75%	28660	64%	**19	80%
ReloadSwiss RS 12	<<locked>>	61%	38348	85%	**73	100%
ReloadSwiss RS 14	<<locked>>	61%	9993	22%	**9	100%
ReloadSwiss RS 20	<<locked>>	61%	27949	62%	**07	100%
ReloadSwiss RS 24	<<locked>>	61%	26542	59%	**53	90%
Rottweil P 806	<<locked>>	61%	24033	53%	**11	98%
SNPE Vectan A0	<<locked>>	61%	26861	60%	**62	100%
SNPE Vectan BA 9	<<locked>>	61%	31256	70%	**04	100%
SNPE Vectan BA10	<<locked>>	61%	33605	75%	**19	100%
SNPE Vectan BA7 1/2	<<locked>>	61%	23235	52%	**35	98%
SNPE Vectan BA9 1/2	<<locked>>	61%	30806	69%	**07	100%
[Shooters World Heavy Pistol]*	<<locked>>	62%	25744	57%	**47	81%
Shooters World Major Pistol	<<locked>>	61%	31241	69%	**72	91%
Somchem MP200	<<locked>>	61%	32764	73%	**90	100%
Somchem MS200	<<locked>>	61%	29602	66%	**21	100%
Vihtavuori 3N37	<<locked>>	61%	27572	61%	**40	100%
[Vihtavuori 3N38]*	<<locked>>	61%	19885	44%	**89	85%
[Vihtavuori N105]*	<<locked>>	61%	16186	36%	**24	85%
Vihtavuori N320	<<locked>>	61%	33054	74%	**88	100%
Vihtavuori N32C Tin Star	<<locked>>	61%	20059	45%	**99	100%
Vihtavuori N330	<<locked>>	61%	32489	72%	**34	100%
Vihtavuori N340	<<locked>>	61%	29109	65%	**11	100%
Vihtavuori N350	<<locked>>	61%	25657	57%	**98	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