Load data for .357 Magnum + .357 | 158gr | Geco FMJ FLAT NOSE

Recommended Powder(s):

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.357 \| 158gr \| Geco FMJ FLAT NOSE
Manufacturer SKU:	2318155
Bullet Weight:	158gr \| 10.2g
Bullet Diameter:	0.357" \| 9.07mm
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_B9008_C513
Last updated:	2026-01-22

Load data for 124 loads in caliber .357 Magnum with .357 | 158gr | Geco FMJ FLAT NOSE 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%	37898	87%	**29	99%
ADI AP 70N	<<locked>>	67%	37724	87%	**07	100%
ADI APS 350	<<locked>>	74%	37768	87%	**43	100%
ADI APS 450	<<locked>>	76%	38203	88%	**79	100%
ADI AS 30	<<locked>>	77%	37985	87%	**15	100%
ADI AS 50N	<<locked>>	74%	38609	89%	**65	100%
Accurate No. 2	<<locked>>	75%	38653	89%	**40	100%
Accurate No. 7	<<locked>>	76%	37942	87%	**81	94%
[Accurate No. 9]*	<<locked>>	85%	39001	90%	**88	88%
Accurate Solo 1000	<<locked>>	76%	37753	87%	**38	100%
Accurate Solo 1250	<<locked>>	81%	38580	89%	**01	100%
[Accurate TCM]*	<<locked>>	84%	38392	88%	**68	89%
[Alliant 2400]*	<<locked>>	96%	38638	89%	**01	85%
Alliant BLUE DOT	<<locked>>	97%	36405	84%	**48	92%
Alliant BULLSEYE	<<locked>>	71%	38508	88%	**70	100%
Alliant POWER PISTOL	<<locked>>	80%	38305	88%	**71	99%
Alliant Sport Pistol	<<locked>>	67%	38972	90%	**83	100%
Alliant UNIQUE	<<locked>>	80%	37579	86%	**63	100%
Baschieri & Pellagri 100	<<locked>>	77%	38609	89%	**52	100%
Baschieri & Pellagri 102 Pistol	<<locked>>	95%	37869	87%	**61	100%
Baschieri & Pellagri 103 Pistol	<<locked>>	73%	38696	89%	**75	100%
Hodgdon Clays	<<locked>>	74%	38682	89%	**63	100%
Hodgdon HS-6	<<locked>>	66%	38580	89%	**12	100%
Hodgdon Longshot	<<locked>>	63%	38464	88%	**02	100%
Hodgdon Universal	<<locked>>	74%	37724	87%	**07	100%
Hodgdon CFE Pistol	<<locked>>	78%	39059	90%	**20	100%
Lovex D037.1	<<locked>>	76%	37942	87%	**81	94%
[Lovex D037.2]*	<<locked>>	84%	39001	90%	**88	88%
Lovex S011	<<locked>>	67%	38725	89%	**75	100%
Lovex S020	<<locked>>	73%	37898	87%	**24	100%
Maxam CSB 1	<<locked>>	84%	37695	87%	**88	100%
Maxam CSB 2	<<locked>>	80%	37826	87%	**91	100%
Maxam CSB 3	<<locked>>	78%	37594	86%	**65	100%
Maxam CSB 4	<<locked>>	76%	38043	87%	**55	100%
Maxam CSB 5	<<locked>>	73%	39015	90%	**19	100%
[Ramshot Enforcer]*	<<locked>>	97%	38450	88%	**11	86%
Ramshot Silhouette	<<locked>>	67%	38435	88%	**73	100%
ReloadSwiss RS 12	<<locked>>	69%	38000	87%	**78	100%
ReloadSwiss RS 20	<<locked>>	82%	38276	88%	**63	100%
ReloadSwiss RS 24	<<locked>>	83%	38493	88%	**71	96%
Rottweil P 801	<<locked>>	66%	38928	89%	**61	100%
Rottweil P 806	<<locked>>	87%	38450	88%	**85	100%
SNPE Vectan A0	<<locked>>	84%	38290	88%	**34	100%
SNPE Vectan BA 9	<<locked>>	76%	38218	88%	**01	100%
SNPE Vectan BA10	<<locked>>	71%	38189	88%	**79	100%
SNPE Vectan BA7 1/2 👍	<<locked>>	90%	38957	90%	**96	100%
SNPE Vectan BA9 1/2	<<locked>>	77%	37710	87%	**07	100%
SNPE Vectan SP 2 👍	<<locked>>	76%	39146	90%	**88	100%
[Shooters World Heavy Pistol]*	<<locked>>	84%	39001	90%	**88	88%
Shooters World Major Pistol	<<locked>>	76%	37942	87%	**81	94%
Somchem MP200	<<locked>>	75%	38609	89%	**73	100%
Somchem MS200	<<locked>>	79%	38377	88%	**43	100%
Somchem S221	<<locked>>	70%	39102	90%	**58	98%
Vihtavuori 3N37 👍	<<locked>>	81%	37536	86%	**99	100%
Vihtavuori 3N38	<<locked>>	94%	38479	88%	**65	97%
Vihtavuori N105	<<locked>>	96%	32996	76%	**48	98%
Vihtavuori N320	<<locked>>	73%	37884	87%	**52	100%
Vihtavuori N32C Tin Star	<<locked>>	95%	34389	79%	**50	100%
Vihtavuori N330	<<locked>>	76%	38841	89%	**17	100%
Vihtavuori N340	<<locked>>	80%	38334	88%	**43	100%
Vihtavuori N350 👍	<<locked>>	84%	37811	87%	**02	100%
Winchester 231	<<locked>>	64%	38159	88%	**91	100%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AP 100]*	<<locked>>	61%	14663	34%	**9	87%
ADI AP 70N	<<locked>>	60%	31488	72%	**38	100%
ADI APS 350	<<locked>>	61%	27949	64%	**8	100%
ADI APS 450	<<locked>>	62%	27485	63%	**5	100%
ADI AS 30	<<locked>>	60%	25599	59%	**4	100%
ADI AS 50N	<<locked>>	61%	27862	64%	**43	100%
Accurate No. 2	<<locked>>	62%	25773	59%	**86	100%
[Accurate No. 7]*	<<locked>>	61%	21915	50%	**25	84%
[Accurate No. 9]*	<<locked>>	73%	25556	59%	**84	80%
Accurate Solo 1000	<<locked>>	60%	25512	59%	**7	100%
Accurate Solo 1250	<<locked>>	61%	22611	52%	**07	100%
[Accurate TCM]*	<<locked>>	70%	23119	53%	**38	80%
[Alliant 2400]*	<<locked>>	87%	29153	67%	**70	80%
[Alliant BLUE DOT]*	<<locked>>	74%	19827	46%	**66	81%
Alliant BULLSEYE	<<locked>>	62%	29356	67%	**55	100%
Alliant POWER PISTOL	<<locked>>	61%	21654	50%	**06	93%
Alliant Sport Pistol	<<locked>>	61%	32924	76%	**07	100%
Alliant UNIQUE	<<locked>>	62%	23061	53%	**70	100%
Baschieri & Pellagri 100	<<locked>>	61%	25063	58%	**04	100%
Baschieri & Pellagri 102 Pistol	<<locked>>	66%	18420	42%	**2	100%
Baschieri & Pellagri 103 Pistol	<<locked>>	61%	26774	62%	**47	100%
Hodgdon Clays	<<locked>>	61%	28326	65%	**5	100%
Hodgdon HS-6	<<locked>>	61%	31981	74%	**30	100%
Hodgdon Longshot	<<locked>>	61%	35491	82%	**70	100%
Hodgdon Universal	<<locked>>	60%	26208	60%	**70	100%
Hodgdon CFE Pistol	<<locked>>	61%	24569	56%	**47	100%
[Lovex D037.1]*	<<locked>>	61%	21915	50%	**25	84%
[Lovex D037.2]*	<<locked>>	72%	25556	59%	**84	80%
Lovex S011	<<locked>>	60%	32198	74%	**09	100%
Lovex S020	<<locked>>	60%	26034	60%	**86	100%
Maxam CSB 1	<<locked>>	62%	21553	50%	**8	100%
Maxam CSB 2	<<locked>>	60%	22350	51%	**07	100%
Maxam CSB 3	<<locked>>	62%	24497	56%	**14	100%
Maxam CSB 4	<<locked>>	61%	25759	59%	**10	100%
Maxam CSB 5	<<locked>>	61%	29109	67%	**10	100%
[Ramshot Enforcer]*	<<locked>>	87%	27804	64%	**57	80%
Ramshot Silhouette	<<locked>>	61%	31415	72%	**94	100%
ReloadSwiss RS 12	<<locked>>	61%	30139	69%	**93	100%
ReloadSwiss RS 20	<<locked>>	61%	20914	48%	**40	100%
[ReloadSwiss RS 24]*	<<locked>>	61%	19464	45%	**56	84%
Rottweil P 801	<<locked>>	61%	34272	79%	**12	100%
Rottweil P 806	<<locked>>	61%	15853	36%	**27	94%
SNPE Vectan A0	<<locked>>	60%	20697	48%	**7	100%
SNPE Vectan BA 9	<<locked>>	61%	24903	57%	**47	100%
SNPE Vectan BA10	<<locked>>	62%	30269	70%	**4	100%
SNPE Vectan BA7 1/2	<<locked>>	62%	18275	42%	**4	96%
SNPE Vectan BA9 1/2	<<locked>>	62%	25396	58%	**53	100%
SNPE Vectan SP 2	<<locked>>	61%	24149	55%	**75	96%
[Shooters World Heavy Pistol]*	<<locked>>	72%	25556	59%	**84	80%
[Shooters World Major Pistol]*	<<locked>>	61%	21915	50%	**25	84%
Somchem MP200	<<locked>>	61%	26310	60%	**15	100%
Somchem MS200	<<locked>>	61%	23569	54%	**53	100%
Somchem S221	<<locked>>	61%	28543	66%	**14	95%
Vihtavuori 3N37	<<locked>>	61%	20914	48%	**60	98%
[Vihtavuori 3N38]*	<<locked>>	62%	14837	34%	**8	80%
[Vihtavuori N105]*	<<locked>>	66%	12995	30%	**5	81%
Vihtavuori N320	<<locked>>	61%	26571	61%	**27	100%
Vihtavuori N32C Tin Star	<<locked>>	76%	22771	52%	**9	100%
Vihtavuori N330	<<locked>>	61%	25106	58%	**63	100%
Vihtavuori N340	<<locked>>	62%	23192	53%	**56	100%
Vihtavuori N350	<<locked>>	61%	18608	43%	**17	98%
Winchester 231	<<locked>>	61%	34867	80%	**55	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