Load data for .357 Magnum + .355 | 124gr | Geco HEXAGON

Recommended Powder(s): Accurate No. 5, Hodgdon HS-6, Lovex D036, Rottweil P 806, Shooters World Auto Pistol

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.355 \| 124gr \| Geco HEXAGON
Manufacturer SKU:	2319010
Bullet Weight:	124gr \| 8.0g
Bullet Diameter:	0.355" \| 9.02mm
Bullet Length:	0.611" \| 15.5mm
Caliber:	.357 Magnum load data
Case Length (l3):	1.290" \| 32.8mm
Cartridge Length (C.O.L.):	1.566" \| 39.8mm
Seated Depth:	0.335" \| 8.5mm
Shank Seated Depth:	0.335" \| 8.5mm
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_B9010_C513
Last updated:	2025-01-01

Load data for 124 loads in caliber .357 Magnum with .355 | 124gr | Geco HEXAGON bullet and 62 powders such as Accurate No. 5, Hodgdon HS-6, Lovex D036, Rottweil P 806, Shooters World Auto Pistol. 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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Use the Personalized Load Calculator to customize loads to your own specific requirements. Find more details in the help section.

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.

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>>	94%	32793	75%	**53	96%
ADI AP 70N	<<locked>>	70%	38130	88%	**24	100%
ADI APS 350	<<locked>>	77%	38696	89%	**40	100%
ADI APS 450	<<locked>>	76%	36492	84%	**50	100%
ADI AS 30	<<locked>>	79%	37347	86%	**02	100%
ADI AS 50N	<<locked>>	75%	37144	85%	**55	100%
Accurate No. 2	<<locked>>	76%	37492	86%	**40	100%
Accurate No. 5 👍	<<locked>>	63%	37942	87%	**32	99%
Accurate No. 7	<<locked>>	79%	38450	88%	**94	90%
[Accurate No. 9]*	<<locked>>	87%	37086	85%	**58	84%
Accurate Solo 1000	<<locked>>	79%	38116	88%	**45	100%
Accurate Solo 1250	<<locked>>	84%	38798	89%	**14	100%
[Accurate TCM]*	<<locked>>	87%	37884	87%	**62	85%
[Alliant BLUE DOT]*	<<locked>>	97%	33141	76%	**96	87%
Alliant BULLSEYE	<<locked>>	73%	37565	86%	**73	100%
Alliant POWER PISTOL	<<locked>>	83%	38043	87%	**88	97%
Alliant UNIQUE	<<locked>>	84%	38464	88%	**93	100%
Baschieri & Pellagri 100	<<locked>>	78%	36680	84%	**35	100%
Hodgdon Clays	<<locked>>	73%	35882	82%	**20	100%
Hodgdon HS-6 👍	<<locked>>	69%	38508	88%	**16	100%
Hodgdon Longshot	<<locked>>	65%	37246	86%	**96	100%
Hodgdon Universal	<<locked>>	76%	36535	84%	**01	100%
Hodgdon TrailBoss	<<locked>>	95%	14852	34%	**1	100%
Lovex D036 👍	<<locked>>	63%	37869	87%	**29	99%
Lovex D037.1	<<locked>>	79%	38450	88%	**94	90%
[Lovex D037.2]*	<<locked>>	86%	37086	85%	**58	84%
Lovex S011	<<locked>>	67%	37072	85%	**62	100%
Lovex S020	<<locked>>	75%	37768	87%	**34	100%
Maxam CSB 1	<<locked>>	87%	37927	87%	**98	100%
Maxam CSB 2	<<locked>>	83%	37724	87%	**98	100%
Maxam CSB 3	<<locked>>	81%	37231	86%	**62	100%
Maxam CSB 4	<<locked>>	77%	36550	84%	**39	100%
Maxam CSB 5	<<locked>>	75%	38435	88%	**06	100%
Ramshot Silhouette	<<locked>>	68%	36912	85%	**70	100%
Ramshot True Blue	<<locked>>	65%	38783	89%	**12	100%
ReloadSwiss RS 12	<<locked>>	73%	38377	88%	**94	100%
ReloadSwiss RS 14	<<locked>>	96%	13866	32%	**1	100%
ReloadSwiss RS 20	<<locked>>	84%	36941	85%	**67	100%
ReloadSwiss RS 24	<<locked>>	87%	38928	89%	**85	93%
Rottweil P 801	<<locked>>	66%	36869	85%	**35	100%
Rottweil P 806 👍	<<locked>>	90%	37449	86%	**88	100%
SNPE Vectan A0	<<locked>>	85%	36405	84%	**21	100%
SNPE Vectan BA 9	<<locked>>	78%	37942	87%	**07	100%
SNPE Vectan BA10	<<locked>>	71%	36477	84%	**50	100%
SNPE Vectan BA7 1/2	<<locked>>	93%	38972	90%	**09	100%
SNPE Vectan BA9 1/2	<<locked>>	80%	37869	87%	**11	100%
Shooters World Auto Pistol 👍	<<locked>>	63%	37869	87%	**29	99%
[Shooters World Heavy Pistol]*	<<locked>>	86%	37086	85%	**58	84%
Shooters World Major Pistol	<<locked>>	79%	38450	88%	**94	90%
Somchem MP200	<<locked>>	77%	37536	86%	**67	100%
Somchem MS200	<<locked>>	82%	37782	87%	**50	100%
Somchem S221	<<locked>>	73%	38754	89%	**68	96%
Vihtavuori 3N37	<<locked>>	86%	39059	90%	**32	100%
Vihtavuori 3N38	<<locked>>	97%	37173	85%	**52	93%
Vihtavuori N105	<<locked>>	96%	28239	65%	**60	93%
Vihtavuori N310	<<locked>>	65%	39131	90%	**80	100%
Vihtavuori N320	<<locked>>	74%	36114	83%	**42	100%
Vihtavuori N32C Tin Star	<<locked>>	95%	32430	75%	**14	100%
Vihtavuori N330	<<locked>>	79%	38769	89%	**30	100%
Vihtavuori N340	<<locked>>	82%	37797	87%	**53	100%
Vihtavuori N350	<<locked>>	88%	38145	88%	**12	100%
Winchester 231	<<locked>>	67%	38392	88%	**98	100%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AP 100]*	<<locked>>	61%	13184	30%	**14	81%
ADI AP 70N	<<locked>>	61%	30182	69%	**16	100%
ADI APS 350	<<locked>>	61%	26832	62%	**86	100%
ADI APS 450	<<locked>>	61%	25773	59%	**09	100%
ADI AS 30	<<locked>>	60%	23786	55%	**19	100%
ADI AS 50N	<<locked>>	62%	26498	61%	**04	100%
Accurate No. 2	<<locked>>	62%	23583	54%	**30	99%
Accurate No. 5	<<locked>>	61%	35462	82%	**03	98%
[Accurate No. 7]*	<<locked>>	65%	22698	52%	**09	80%
[Accurate No. 9]*	<<locked>>	83%	32619	75%	**80	81%
Accurate Solo 1000	<<locked>>	61%	24801	57%	**61	100%
Accurate Solo 1250	<<locked>>	62%	21161	49%	**55	100%
[Accurate TCM]*	<<locked>>	80%	29414	68%	**24	80%
[Alliant BLUE DOT]*	<<locked>>	85%	24221	56%	**22	80%
Alliant BULLSEYE	<<locked>>	62%	27195	62%	**19	100%
[Alliant POWER PISTOL]*	<<locked>>	61%	19841	46%	**34	88%
Alliant UNIQUE	<<locked>>	60%	20175	46%	**91	100%
Baschieri & Pellagri 100	<<locked>>	62%	23641	54%	**52	100%
Hodgdon Clays	<<locked>>	61%	27137	62%	**06	100%
Hodgdon HS-6	<<locked>>	61%	29211	67%	**88	98%
Hodgdon Longshot	<<locked>>	61%	32285	74%	**27	100%
Hodgdon Universal	<<locked>>	60%	24265	56%	**24	100%
Hodgdon TrailBoss	<<locked>>	61%	7585	17%	**2	100%
Lovex D036	<<locked>>	61%	35418	81%	**03	98%
[Lovex D037.1]*	<<locked>>	65%	22698	52%	**09	80%
[Lovex D037.2]*	<<locked>>	82%	32619	75%	**80	81%
Lovex S011	<<locked>>	62%	31372	72%	**93	100%
Lovex S020	<<locked>>	61%	24627	57%	**53	100%
Maxam CSB 1	<<locked>>	61%	19290	44%	**12	100%
Maxam CSB 2	<<locked>>	61%	20726	48%	**52	100%
Maxam CSB 3	<<locked>>	61%	22104	51%	**45	100%
Maxam CSB 4	<<locked>>	60%	23496	54%	**52	100%
Maxam CSB 5	<<locked>>	61%	26890	62%	**58	100%
Ramshot Silhouette	<<locked>>	61%	29718	68%	**68	100%
Ramshot True Blue	<<locked>>	61%	34185	79%	**53	100%
ReloadSwiss RS 12	<<locked>>	61%	27630	64%	**57	100%
ReloadSwiss RS 14	<<locked>>	62%	7266	17%	**5	98%
ReloadSwiss RS 20	<<locked>>	61%	18855	43%	**71	100%
[ReloadSwiss RS 24]*	<<locked>>	65%	19885	46%	**24	80%
Rottweil P 801	<<locked>>	61%	31372	72%	**66	100%
[Rottweil P 806]*	<<locked>>	61%	13576	31%	**09	87%
SNPE Vectan A0	<<locked>>	61%	19232	44%	**29	99%
SNPE Vectan BA 9	<<locked>>	62%	23888	55%	**04	100%
SNPE Vectan BA10	<<locked>>	61%	28239	65%	**42	100%
SNPE Vectan BA7 1/2	<<locked>>	61%	16505	38%	**93	91%
SNPE Vectan BA9 1/2	<<locked>>	62%	23482	54%	**04	100%
Shooters World Auto Pistol	<<locked>>	61%	35418	81%	**03	98%
[Shooters World Heavy Pistol]*	<<locked>>	82%	32619	75%	**80	81%
[Shooters World Major Pistol]*	<<locked>>	65%	22698	52%	**09	80%
Somchem MP200	<<locked>>	61%	23714	54%	**57	100%
Somchem MS200	<<locked>>	61%	21741	50%	**98	100%
Somchem S221	<<locked>>	61%	26440	61%	**55	90%
Vihtavuori 3N37	<<locked>>	60%	18333	42%	**68	94%
[Vihtavuori 3N38]*	<<locked>>	73%	18724	43%	**94	81%
[Vihtavuori N105]*	<<locked>>	76%	15635	36%	**55	80%
Vihtavuori N310	<<locked>>	62%	36027	83%	**40	100%
Vihtavuori N320	<<locked>>	61%	24976	57%	**91	100%
Vihtavuori N32C Tin Star	<<locked>>	60%	14359	33%	**8	100%
Vihtavuori N330	<<locked>>	61%	22858	53%	**14	100%
Vihtavuori N340	<<locked>>	62%	21089	48%	**91	100%
Vihtavuori N350	<<locked>>	61%	17245	40%	**35	94%
Winchester 231	<<locked>>	62%	32924	76%	**32	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.