Load data for .357 SIG + .356 | 123gr | LOS HP

Recommended Powder(s):

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.356 \| 123gr \| LOS HP
Bullet Weight:	123gr \| 8.0g
Bullet Diameter:	0.356" \| 9.04mm
Bullet Length:	0.550" \| 14.0mm
Caliber:	.357 SIG load data
Case Length (l3):	0.860" \| 21.8mm
Cartridge Length (C.O.L.):	1.123" \| 28.5mm
Seated Depth:	0.287" \| 7.3mm
Shank Seated Depth:	0.287" \| 7.3mm
Case Capacity:	19.5 Grains of Water \| 1.27 cm³
Primer Size:	Small Pistol (SP)
Max. allowed Pressure:	44237 psi \| 3050 bar
LID:	LID_B3510_C518
Last updated:	2026-01-20

Load data for 124 loads in caliber .357 SIG with .356 | 123gr | LOS HP bullet and 62 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%	27006	61%	**83	90%
ADI AP 70N	<<locked>>	78%	38653	87%	**71	100%
ADI APS 350	<<locked>>	84%	39276	89%	**75	100%
ADI APS 450	<<locked>>	86%	39189	89%	**11	100%
ADI AS 30	<<locked>>	90%	39813	90%	**66	100%
ADI AS 50N	<<locked>>	85%	39407	89%	**12	100%
Accurate No. 2	<<locked>>	85%	39073	88%	**78	100%
Accurate No. 5	<<locked>>	71%	39552	89%	**83	97%
[Accurate No. 7]*	<<locked>>	90%	38914	88%	**16	86%
Accurate Solo 1000	<<locked>>	87%	38551	87%	**86	100%
Accurate Solo 1250	<<locked>>	95%	39682	90%	**58	100%
Alliant BULLSEYE	<<locked>>	83%	39291	89%	**30	100%
Alliant POWER PISTOL	<<locked>>	94%	39392	89%	**32	95%
Alliant Sport Pistol	<<locked>>	77%	39088	88%	**30	100%
Alliant UNIQUE 👍	<<locked>>	95%	39102	88%	**40	100%
Baschieri & Pellagri 100	<<locked>>	89%	39363	89%	**96	100%
Baschieri & Pellagri 102 Pistol	<<locked>>	96%	28747	65%	**04	100%
Baschieri & Pellagri 103 Pistol	<<locked>>	84%	39131	88%	**25	100%
Hodgdon Clays	<<locked>>	84%	39798	90%	**94	100%
Hodgdon HP38	<<locked>>	67%	39697	90%	**42	100%
Hodgdon HS-6	<<locked>>	78%	39653	90%	**60	98%
Hodgdon Longshot	<<locked>>	74%	39131	88%	**57	99%
Hodgdon Universal	<<locked>>	87%	38653	87%	**71	100%
Hodgdon CFE Pistol	<<locked>>	90%	39798	90%	**75	100%
Lovex D036	<<locked>>	71%	39494	89%	**83	97%
[Lovex D037.1]*	<<locked>>	90%	38914	88%	**16	86%
Lovex S011	<<locked>>	76%	39450	89%	**22	100%
Lovex S020	<<locked>>	85%	38798	88%	**88	100%
Maxam CSB 1	<<locked>>	97%	37681	85%	**39	100%
Maxam CSB 2	<<locked>>	95%	39117	88%	**68	100%
Maxam CSB 3	<<locked>>	92%	39305	89%	**29	100%
Maxam CSB 4	<<locked>>	89%	39436	89%	**12	100%
Maxam CSB 5	<<locked>>	84%	39653	90%	**57	100%
Ramshot Silhouette	<<locked>>	78%	39523	89%	**37	100%
Ramshot True Blue	<<locked>>	73%	39798	90%	**60	99%
Ramshot Zip	<<locked>>	67%	39320	89%	**48	100%
ReloadSwiss RS 12	<<locked>>	82%	39073	88%	**52	100%
ReloadSwiss RS 20 👍	<<locked>>	96%	38522	87%	**30	100%
[ReloadSwiss RS 24]*	<<locked>>	96%	38609	87%	**99	89%
Rottweil P 801	<<locked>>	77%	39581	89%	**12	100%
Rottweil P 806	<<locked>>	97%	30429	69%	**53	97%
SNPE Vectan A0 👍	<<locked>>	97%	38638	87%	**75	100%
SNPE Vectan BA 9	<<locked>>	88%	39566	89%	**58	100%
SNPE Vectan BA10	<<locked>>	80%	39160	89%	**11	100%
SNPE Vectan BA7 1/2	<<locked>>	97%	33605	76%	**62	98%
SNPE Vectan BA9 1/2	<<locked>>	90%	38986	88%	**65	100%
SNPE Vectan SP 2	<<locked>>	90%	38725	88%	**42	97%
Shooters World Auto Pistol	<<locked>>	71%	39494	89%	**83	97%
[Shooters World Major Pistol]*	<<locked>>	90%	38914	88%	**16	86%
Somchem MP200	<<locked>>	88%	39726	90%	**30	100%
Somchem MS200 👍	<<locked>>	93%	39697	90%	**07	100%
Somchem S221	<<locked>>	82%	39697	90%	**86	92%
Vihtavuori 3N37	<<locked>>	96%	39769	90%	**73	100%
[Vihtavuori 3N38]*	<<locked>>	97%	27383	62%	**16	84%
[Vihtavuori N105]*	<<locked>>	97%	20798	47%	**30	82%
Vihtavuori N310	<<locked>>	71%	39146	88%	**14	100%
Vihtavuori N320	<<locked>>	86%	38928	88%	**12	100%
Vihtavuori N32C Tin Star	<<locked>>	97%	26992	61%	**02	100%
Vihtavuori N330	<<locked>>	89%	39073	88%	**75	100%
Vihtavuori N340 👍	<<locked>>	92%	38972	88%	**01	100%
Vihtavuori N350	<<locked>>	96%	36230	82%	**27	99%
Winchester 231	<<locked>>	75%	39320	89%	**48	100%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AP 100]*	<<locked>>	75%	15853	36%	**40	81%
ADI AP 70N	<<locked>>	61%	24178	55%	**71	100%
ADI APS 350	<<locked>>	60%	22843	52%	**4	100%
ADI APS 450	<<locked>>	60%	21683	49%	**8	100%
ADI AS 30	<<locked>>	61%	20581	47%	**14	100%
ADI AS 50N	<<locked>>	61%	21669	49%	**76	100%
Accurate No. 2	<<locked>>	62%	19160	43%	**73	96%
Accurate No. 5	<<locked>>	61%	27253	62%	**96	93%
[Accurate No. 7]*	<<locked>>	80%	28297	64%	**62	80%
Accurate Solo 1000	<<locked>>	61%	21031	48%	**43	100%
Accurate Solo 1250	<<locked>>	62%	16998	38%	**24	100%
Alliant BULLSEYE	<<locked>>	62%	22307	50%	**68	99%
[Alliant POWER PISTOL]*	<<locked>>	64%	16694	38%	**93	80%
Alliant Sport Pistol	<<locked>>	61%	24497	55%	**14	100%
Alliant UNIQUE	<<locked>>	61%	16795	38%	**56	96%
Baschieri & Pellagri 100	<<locked>>	62%	19276	44%	**30	100%
Baschieri & Pellagri 102 Pistol	<<locked>>	65%	13242	30%	**5	100%
Baschieri & Pellagri 103 Pistol	<<locked>>	61%	20102	45%	**79	100%
Hodgdon Clays	<<locked>>	60%	23061	52%	**8	100%
Hodgdon HP38	<<locked>>	60%	32503	73%	**60	100%
Hodgdon HS-6	<<locked>>	61%	22684	51%	**98	92%
Hodgdon Longshot	<<locked>>	61%	25338	57%	**50	96%
Hodgdon Universal	<<locked>>	62%	20276	46%	**02	100%
Hodgdon CFE Pistol	<<locked>>	61%	18536	42%	**66	100%
Lovex D036	<<locked>>	61%	27209	62%	**96	93%
[Lovex D037.1]*	<<locked>>	80%	28297	64%	**62	80%
Lovex S011	<<locked>>	60%	24874	56%	**38	100%
Lovex S020	<<locked>>	61%	18971	43%	**89	99%
Maxam CSB 1	<<locked>>	62%	16389	37%	**04	100%
Maxam CSB 2	<<locked>>	60%	16041	36%	**24	100%
Maxam CSB 3	<<locked>>	61%	18724	42%	**37	100%
Maxam CSB 4	<<locked>>	60%	19508	44%	**37	100%
Maxam CSB 5	<<locked>>	60%	22350	51%	**40	100%
Ramshot Silhouette	<<locked>>	61%	23351	53%	**01	98%
Ramshot True Blue	<<locked>>	62%	27079	61%	**70	96%
Ramshot Zip	<<locked>>	61%	32895	74%	**76	100%
ReloadSwiss RS 12	<<locked>>	61%	21886	49%	**22	100%
ReloadSwiss RS 20	<<locked>>	61%	14605	33%	**24	97%
[ReloadSwiss RS 24]*	<<locked>>	80%	23743	54%	**57	80%
Rottweil P 801	<<locked>>	60%	25019	57%	**32	100%
[Rottweil P 806]*	<<locked>>	67%	11473	26%	**10	80%
SNPE Vectan A0	<<locked>>	62%	16143	36%	**04	96%
SNPE Vectan BA 9	<<locked>>	61%	19276	44%	**63	100%
SNPE Vectan BA10	<<locked>>	61%	24816	56%	**37	100%
[SNPE Vectan BA7 1/2]*	<<locked>>	61%	13518	31%	**1	84%
SNPE Vectan BA9 1/2	<<locked>>	61%	18942	43%	**70	100%
[SNPE Vectan SP 2]*	<<locked>>	61%	15403	35%	**86	81%
Shooters World Auto Pistol	<<locked>>	61%	27209	62%	**96	93%
[Shooters World Major Pistol]*	<<locked>>	80%	28297	64%	**62	80%
Somchem MP200	<<locked>>	61%	19348	44%	**06	97%
Somchem MS200	<<locked>>	60%	17709	40%	**53	98%
[Somchem S221]*	<<locked>>	61%	20668	47%	**61	81%
[Vihtavuori 3N37]*	<<locked>>	62%	14939	34%	**27	88%
[Vihtavuori 3N38]*	<<locked>>	89%	22452	51%	**27	80%
[Vihtavuori N105]*	<<locked>>	94%	19261	44%	**98	80%
Vihtavuori N310	<<locked>>	61%	29704	67%	**12	100%
Vihtavuori N320	<<locked>>	60%	19653	44%	**56	100%
Vihtavuori N32C Tin Star	<<locked>>	71%	15432	35%	**9	100%
Vihtavuori N330	<<locked>>	61%	17695	40%	**70	100%
Vihtavuori N340	<<locked>>	62%	16984	38%	**43	97%
[Vihtavuori N350]*	<<locked>>	62%	13590	31%	**4	86%
Winchester 231	<<locked>>	61%	26658	60%	**88	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