Load data for .357 Auto Magnum + .357 | 158gr | Norma SPFN

Recommended Powder(s):

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.357 \| 158gr \| Norma SPFN
Manufacturer SKU:	69107
Bullet Weight:	158gr \| 10.2g
Bullet Diameter:	0.357" \| 9.07mm
Bullet Length:	0.660" \| 16.8mm
Caliber:	.357 Auto Magnum load data
Case Length (l3):	1.299" \| 33.0mm
Cartridge Length (C.O.L.):	1.576" \| 40.0mm
Seated Depth:	0.383" \| 9.7mm
Shank Seated Depth:	0.383" \| 9.7mm
Case Capacity:	35.0 Grains of Water \| 2.27 cm³
Primer Size:	Small Pistol Magnum (SPM)
Max. allowed Pressure:	36985 psi \| 2550 bar
LID:	LID_B3896_C511
Last updated:	2025-01-01

Load data for 68 loads in caliber .357 Auto Magnum with .357 | 158gr | Norma SPFN bullet and 34 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>>	79%	32996	89%	**01	100%
ADI APS 450	<<locked>>	63%	32808	89%	**48	100%
[Accurate 4100]*	<<locked>>	80%	31981	86%	**50	84%
Accurate No. 9	<<locked>>	69%	32808	89%	**53	90%
Accurate Solo 1250	<<locked>>	65%	32750	89%	**60	100%
Accurate TCM	<<locked>>	68%	32938	89%	**47	92%
[Alliant 2400]*	<<locked>>	77%	32140	87%	**53	87%
Alliant BLUE DOT	<<locked>>	79%	32605	88%	**34	94%
Alliant POWER PISTOL	<<locked>>	64%	33011	89%	**37	100%
Alliant UNIQUE	<<locked>>	65%	33098	90%	**32	100%
Baschieri & Pellagri 100	<<locked>>	63%	33214	90%	**20	100%
[Hodgdon LilGun]*	<<locked>>	88%	31821	86%	**16	87%
Hodgdon TrailBoss	<<locked>>	96%	21002	57%	**01	100%
Lovex D037.2	<<locked>>	67%	32126	87%	**40	90%
Maxam CSB 1	<<locked>>	68%	33011	89%	**57	100%
Maxam CSB 2	<<locked>>	63%	32198	87%	**40	100%
Maxam CSB 3	<<locked>>	63%	32010	87%	**20	100%
[Ramshot Enforcer]*	<<locked>>	78%	32561	88%	**73	88%
ReloadSwiss RS 14	<<locked>>	96%	19769	53%	**14	100%
ReloadSwiss RS 20	<<locked>>	65%	32503	88%	**16	100%
ReloadSwiss RS 24	<<locked>>	66%	31981	86%	**21	97%
Rottweil P 806	<<locked>>	69%	32808	89%	**34	100%
SNPE Vectan A0	<<locked>>	67%	32358	87%	**86	100%
[SNPE Vectan BA6 1/2]*	<<locked>>	97%	25672	69%	**42	86%
SNPE Vectan BA7 1/2	<<locked>>	72%	33214	90%	**58	100%
Shooters World Heavy Pistol	<<locked>>	67%	32126	87%	**40	90%
Somchem MS200	<<locked>>	63%	32010	87%	**86	100%
Vihtavuori 3N37	<<locked>>	64%	31705	86%	**58	100%
Vihtavuori 3N38	<<locked>>	75%	33054	89%	**27	98%
Vihtavuori N105	<<locked>>	79%	31850	86%	**44	99%
[Vihtavuori N110]*	<<locked>>	97%	32300	87%	**80	87%
Vihtavuori N32C Tin Star	<<locked>>	82%	32924	89%	**48	100%
Vihtavuori N340	<<locked>>	63%	31662	86%	**93	100%
Vihtavuori N350	<<locked>>	68%	32793	89%	**65	100%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
ADI AP 100	<<locked>>	61%	20363	55%	**58	96%
ADI APS 450	<<locked>>	61%	30908	84%	**25	100%
[Accurate 4100]*	<<locked>>	76%	27934	76%	**68	81%
[Accurate No. 9]*	<<locked>>	61%	24903	67%	**06	85%
Accurate Solo 1250	<<locked>>	61%	28906	78%	**07	100%
[Accurate TCM]*	<<locked>>	61%	24976	68%	**99	87%
[Alliant 2400]*	<<locked>>	67%	23337	63%	**80	80%
[Alliant BLUE DOT]*	<<locked>>	61%	18956	51%	**52	84%
Alliant POWER PISTOL	<<locked>>	61%	29602	80%	**81	99%
Alliant UNIQUE	<<locked>>	61%	29414	80%	**80	100%
Baschieri & Pellagri 100	<<locked>>	61%	31270	85%	**88	100%
[Hodgdon LilGun]*	<<locked>>	80%	24062	65%	**65	81%
Hodgdon TrailBoss	<<locked>>	61%	10530	28%	**4	100%
[Lovex D037.2]*	<<locked>>	61%	25498	69%	**09	85%
Maxam CSB 1	<<locked>>	61%	27528	74%	**84	100%
Maxam CSB 2	<<locked>>	61%	30313	82%	**14	100%
Maxam CSB 3	<<locked>>	61%	30139	82%	**94	100%
[Ramshot Enforcer]*	<<locked>>	67%	22568	61%	**70	81%
ReloadSwiss RS 14	<<locked>>	62%	10167	28%	**4	100%
ReloadSwiss RS 20	<<locked>>	61%	28906	78%	**63	100%
ReloadSwiss RS 24	<<locked>>	61%	27673	75%	**42	95%
Rottweil P 806	<<locked>>	61%	24918	67%	**89	100%
SNPE Vectan A0	<<locked>>	61%	27282	74%	**14	100%
[SNPE Vectan BA6 1/2]*	<<locked>>	87%	19667	53%	**01	80%
SNPE Vectan BA7 1/2	<<locked>>	61%	24279	66%	**11	100%
[Shooters World Heavy Pistol]*	<<locked>>	61%	25498	69%	**09	85%
Somchem MS200	<<locked>>	61%	30255	82%	**63	100%
Vihtavuori 3N37	<<locked>>	61%	28500	77%	**02	100%
Vihtavuori 3N38	<<locked>>	61%	20682	56%	**91	91%
Vihtavuori N105	<<locked>>	61%	16839	46%	**38	91%
[Vihtavuori N110]*	<<locked>>	86%	22989	62%	**02	80%
Vihtavuori N32C Tin Star	<<locked>>	61%	20407	55%	**1	100%
Vihtavuori N340	<<locked>>	61%	29863	81%	**66	100%
Vihtavuori N350	<<locked>>	61%	26121	71%	**63	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