Load data for .357 Maximum + .357 | 158gr | MAGTECH FMJ FLAT

Recommended Powder(s): Alliant POWER PISTOL, Vihtavuori N105

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.357 \| 158gr \| MAGTECH FMJ FLAT
Manufacturer SKU:	BU357D
Bullet Weight:	158gr \| 10.2g
Bullet Diameter:	0.357" \| 9.07mm
Bullet Length:	<<locked>>
Caliber:	.357 Maximum load data
Case Length (l3):	1.600" \| 40.6mm
Cartridge Length (C.O.L.):	<<locked>>
Seated Depth:	<<locked>>
Shank Seated Depth:	<<locked>>
Case Capacity:	33.6 Grains of Water \| 2.18 cm³
Primer Size:	Small Pistol (SP)
Max. allowed Pressure:	44962 psi \| 3100 bar
LID:	LID_B12276_C515
Last updated:	2026-03-05

Load data for 124 loads in caliber .357 Maximum with .357 | 158gr | MAGTECH FMJ FLAT bullet and 62 powders such as Alliant POWER PISTOL, Vihtavuori N105. 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>>	89%	39842	89%	**07	100%
ADI APS 350	<<locked>>	70%	38377	85%	**09	100%
ADI APS 450	<<locked>>	74%	40335	90%	**61	100%
ADI AS 30	<<locked>>	73%	40205	89%	**84	100%
ADI AS 50N	<<locked>>	66%	37826	84%	**04	100%
[Accurate 4100]*	<<locked>>	90%	39929	89%	**60	85%
Accurate No. 2	<<locked>>	68%	38769	86%	**93	100%
Accurate No. 7	<<locked>>	69%	39827	89%	**70	96%
Accurate No. 9	<<locked>>	77%	39755	88%	**63	92%
Accurate Solo 1000	<<locked>>	70%	37797	84%	**91	100%
Accurate Solo 1250	<<locked>>	74%	39146	87%	**57	100%
Accurate TCM	<<locked>>	77%	40451	90%	**70	93%
[Alliant 2400]*	<<locked>>	87%	39653	88%	**73	88%
Alliant BE-86	<<locked>>	73%	38986	87%	**43	100%
Alliant BLUE DOT	<<locked>>	89%	39320	87%	**57	95%
Alliant BULLSEYE	<<locked>>	66%	39595	88%	**32	100%
Alliant Herco	<<locked>>	88%	40089	89%	**35	100%
Alliant POWER PISTOL 👍	<<locked>>	72%	38029	85%	**30	100%
Alliant RED DOT	<<locked>>	74%	39958	89%	**01	100%
Alliant UNIQUE	<<locked>>	74%	39972	89%	**35	100%
Baschieri & Pellagri 100	<<locked>>	72%	39537	88%	**11	100%
Baschieri & Pellagri 102 Pistol	<<locked>>	87%	38000	85%	**04	100%
Baschieri & Pellagri 103 Pistol	<<locked>>	67%	39813	89%	**27	100%
Hodgdon Clays	<<locked>>	70%	39276	87%	**32	100%
[Hodgdon LilGun]*	<<locked>>	96%	36434	81%	**09	88%
Hodgdon Universal	<<locked>>	67%	38072	85%	**53	100%
Hodgdon CFE Pistol	<<locked>>	70%	39204	87%	**63	100%
Hodgdon TrailBoss	<<locked>>	95%	20407	45%	**8	100%
Lovex D037.1	<<locked>>	69%	39827	89%	**70	96%
Lovex D037.2	<<locked>>	75%	38508	86%	**44	91%
Lovex S020	<<locked>>	66%	38754	86%	**80	100%
Maxam CSB 1	<<locked>>	78%	39595	88%	**57	100%
Maxam CSB 2	<<locked>>	72%	38493	86%	**34	100%
Maxam CSB 3	<<locked>>	73%	39044	87%	**27	100%
Maxam CSB 4	<<locked>>	70%	38334	85%	**04	100%
Maxam CSB 5	<<locked>>	67%	38348	85%	**55	100%
Ramshot Enforcer	<<locked>>	87%	39856	89%	**83	90%
ReloadSwiss RS 14	<<locked>>	93%	19000	42%	**8	100%
ReloadSwiss RS 20	<<locked>>	74%	38725	86%	**06	100%
ReloadSwiss RS 24	<<locked>>	74%	38653	86%	**40	98%
Rottweil P 806	<<locked>>	77%	40030	89%	**44	100%
SNPE Vectan A0	<<locked>>	77%	39073	87%	**89	100%
SNPE Vectan BA 9	<<locked>>	70%	38740	86%	**63	100%
SNPE Vectan BA10	<<locked>>	68%	39233	87%	**45	100%
SNPE Vectan BA7 1/2	<<locked>>	81%	39044	87%	**55	100%
SNPE Vectan BA9 1/2	<<locked>>	71%	39726	88%	**70	100%
SNPE Vectan SP 2	<<locked>>	67%	38812	86%	**24	100%
Shooters World Heavy Pistol	<<locked>>	75%	38508	86%	**44	91%
Shooters World Major Pistol	<<locked>>	69%	39827	89%	**70	96%
Somchem MP200	<<locked>>	68%	39523	88%	**25	100%
Somchem MS200	<<locked>>	73%	39958	89%	**06	100%
Somchem S221	<<locked>>	62%	38841	86%	**04	99%
Vihtavuori 3N37	<<locked>>	74%	38725	86%	**68	100%
Vihtavuori 3N38	<<locked>>	85%	39378	88%	**34	98%
Vihtavuori N105 👍	<<locked>>	90%	39769	88%	**73	100%
[Vihtavuori N110]*	<<locked>>	96%	28094	62%	**25	83%
Vihtavuori N320	<<locked>>	67%	38798	86%	**04	100%
Vihtavuori N32C Tin Star	<<locked>>	94%	40132	89%	**52	100%
Vihtavuori N330	<<locked>>	68%	38609	86%	**60	100%
Vihtavuori N340	<<locked>>	73%	39972	89%	**09	100%
Vihtavuori N350	<<locked>>	77%	39175	87%	**58	100%
Winchester AutoComp	<<locked>>	75%	39262	87%	**73	100%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
ADI AP 100	<<locked>>	61%	19290	43%	**63	94%
ADI APS 350	<<locked>>	60%	30690	68%	**20	100%
ADI APS 450	<<locked>>	61%	30429	68%	**43	100%
ADI AS 30	<<locked>>	61%	30037	67%	**66	100%
ADI AS 50N	<<locked>>	61%	32808	73%	**45	100%
[Accurate 4100]*	<<locked>>	82%	31125	69%	**39	80%
Accurate No. 2	<<locked>>	61%	30951	69%	**04	100%
Accurate No. 7	<<locked>>	61%	30226	67%	**16	92%
[Accurate No. 9]*	<<locked>>	61%	23409	52%	**91	82%
Accurate Solo 1000	<<locked>>	61%	30516	68%	**06	100%
Accurate Solo 1250	<<locked>>	61%	27441	61%	**15	100%
[Accurate TCM]*	<<locked>>	61%	23670	53%	**94	84%
[Alliant 2400]*	<<locked>>	73%	26440	59%	**63	81%
Alliant BE-86	<<locked>>	61%	28514	63%	**15	100%
[Alliant BLUE DOT]*	<<locked>>	61%	18376	41%	**60	82%
Alliant BULLSEYE	<<locked>>	61%	34650	77%	**73	100%
Alliant Herco	<<locked>>	62%	21712	48%	**70	100%
Alliant POWER PISTOL	<<locked>>	61%	28239	63%	**73	98%
Alliant RED DOT	<<locked>>	61%	29602	66%	**79	100%
Alliant UNIQUE	<<locked>>	61%	28964	64%	**94	100%
Baschieri & Pellagri 100	<<locked>>	61%	29820	66%	**99	100%
Baschieri & Pellagri 102 Pistol	<<locked>>	62%	20987	47%	**1	100%
Baschieri & Pellagri 103 Pistol	<<locked>>	61%	33750	75%	**65	100%
Hodgdon Clays	<<locked>>	60%	31372	70%	**33	100%
[Hodgdon LilGun]*	<<locked>>	86%	26658	59%	**22	80%
Hodgdon Universal	<<locked>>	61%	33330	74%	**98	100%
Hodgdon CFE Pistol	<<locked>>	60%	30618	68%	**65	100%
Hodgdon TrailBoss	<<locked>>	81%	16041	36%	**6	100%
Lovex D037.1	<<locked>>	61%	30226	67%	**16	92%
[Lovex D037.2]*	<<locked>>	61%	23989	53%	**98	82%
Lovex S020	<<locked>>	61%	33866	75%	**27	100%
Maxam CSB 1	<<locked>>	61%	26252	58%	**89	100%
Maxam CSB 2	<<locked>>	61%	29298	65%	**25	100%
Maxam CSB 3	<<locked>>	61%	29472	66%	**15	100%
Maxam CSB 4	<<locked>>	61%	31009	69%	**19	100%
Maxam CSB 5	<<locked>>	61%	33098	74%	**99	100%
[Ramshot Enforcer]*	<<locked>>	72%	24758	55%	**47	81%
ReloadSwiss RS 14	<<locked>>	79%	14982	33%	**0	100%
ReloadSwiss RS 20	<<locked>>	61%	27528	61%	**68	100%
ReloadSwiss RS 24	<<locked>>	61%	26194	58%	**30	92%
Rottweil P 806	<<locked>>	61%	23728	53%	**98	99%
SNPE Vectan A0	<<locked>>	62%	26643	59%	**25	100%
SNPE Vectan BA 9	<<locked>>	60%	30095	67%	**52	100%
SNPE Vectan BA10	<<locked>>	62%	34040	76%	**86	100%
SNPE Vectan BA7 1/2	<<locked>>	61%	22684	50%	**09	99%
SNPE Vectan BA9 1/2	<<locked>>	61%	30530	68%	**65	100%
SNPE Vectan SP 2	<<locked>>	61%	32401	72%	**35	100%
[Shooters World Heavy Pistol]*	<<locked>>	61%	23989	53%	**98	82%
Shooters World Major Pistol	<<locked>>	61%	30226	67%	**16	92%
Somchem MP200	<<locked>>	61%	32721	73%	**47	100%
Somchem MS200	<<locked>>	60%	28674	64%	**65	100%
Somchem S221	<<locked>>	61%	36883	82%	**85	99%
Vihtavuori 3N37	<<locked>>	61%	26977	60%	**98	100%
[Vihtavuori 3N38]*	<<locked>>	61%	19667	44%	**93	88%
[Vihtavuori N105]*	<<locked>>	61%	16244	36%	**53	89%
[Vihtavuori N110]*	<<locked>>	92%	25309	56%	**76	81%
Vihtavuori N320	<<locked>>	62%	33533	75%	**48	100%
Vihtavuori N32C Tin Star	<<locked>>	61%	20305	45%	**2	100%
Vihtavuori N330	<<locked>>	61%	31256	70%	**75	100%
Vihtavuori N340	<<locked>>	61%	28427	63%	**68	100%
Vihtavuori N350	<<locked>>	61%	25005	56%	**65	100%
Winchester AutoComp	<<locked>>	61%	27383	61%	**22	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