Load data for .357 SIG + .357 | 158gr | Norma SPFN

Recommended Powder(s): Alliant UNIQUE, Ramshot True Blue, ReloadSwiss RS 20, Vihtavuori 3N37, Vihtavuori N340

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 SIG load data
Case Length (l3):	0.860" \| 21.8mm
Cartridge Length (C.O.L.):	1.123" \| 28.5mm
Seated Depth:	0.397" \| 10.1mm
Shank Seated Depth:	0.397" \| 10.1mm
Case Capacity:	19.5 Grains of Water \| 1.27 cm³
Primer Size:	Small Pistol (SP)
Max. allowed Pressure:	44237 psi \| 3050 bar
LID:	LID_B3896_C518
Last updated:	2025-01-01

Load data for 110 loads in caliber .357 SIG with .357 | 158gr | Norma SPFN bullet and 55 powders such as Alliant UNIQUE, Ramshot True Blue, ReloadSwiss RS 20, Vihtavuori 3N37, Vihtavuori N340. 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>>	95%	24700	56%	**30	91%
ADI AP 70N	<<locked>>	79%	38566	87%	**19	100%
ADI AS 30	<<locked>>	89%	38261	86%	**17	100%
ADI AS 50N	<<locked>>	85%	38029	86%	**56	100%
Accurate No. 2	<<locked>>	85%	38058	86%	**12	100%
Accurate No. 5	<<locked>>	72%	39146	88%	**14	98%
[Accurate No. 7]*	<<locked>>	90%	37956	86%	**43	88%
Accurate Solo 1000	<<locked>>	89%	39668	90%	**53	100%
Accurate Solo 1250	<<locked>>	95%	38682	87%	**99	100%
Alliant BULLSEYE	<<locked>>	83%	37608	85%	**52	100%
Alliant POWER PISTOL	<<locked>>	96%	39146	88%	**60	97%
Alliant UNIQUE 👍	<<locked>>	96%	38435	87%	**71	100%
Baschieri & Pellagri 100	<<locked>>	89%	37855	86%	**43	100%
Hodgdon Clays	<<locked>>	81%	37014	84%	**5	100%
Hodgdon HP38	<<locked>>	68%	39726	90%	**93	100%
Hodgdon HS-6	<<locked>>	79%	39320	89%	**98	99%
Hodgdon Longshot	<<locked>>	74%	37869	86%	**78	100%
Hodgdon Universal	<<locked>>	88%	38566	87%	**19	100%
Hodgdon TrailBoss	<<locked>>	94%	11429	26%	**9	100%
Lovex D036	<<locked>>	72%	39088	88%	**14	98%
[Lovex D037.1]*	<<locked>>	90%	37956	86%	**43	88%
Lovex S011	<<locked>>	76%	37536	85%	**63	100%
Lovex S020	<<locked>>	86%	39160	89%	**32	100%
Maxam CSB 1	<<locked>>	96%	36071	82%	**73	100%
Maxam CSB 2	<<locked>>	96%	38421	87%	**12	100%
Maxam CSB 3	<<locked>>	92%	38130	86%	**73	100%
Maxam CSB 4	<<locked>>	88%	37449	85%	**47	100%
Maxam CSB 5	<<locked>>	85%	39320	89%	**17	100%
Ramshot Silhouette	<<locked>>	79%	39262	89%	**75	100%
Ramshot True Blue 👍	<<locked>>	73%	38580	87%	**81	100%
Ramshot Zip	<<locked>>	67%	38392	87%	**89	100%
ReloadSwiss RS 12	<<locked>>	84%	39682	90%	**06	100%
ReloadSwiss RS 20 👍	<<locked>>	95%	35969	81%	**45	100%
ReloadSwiss RS 24	<<locked>>	97%	37043	84%	**24	90%
Rottweil P 801	<<locked>>	78%	39378	89%	**70	100%
Rottweil P 806	<<locked>>	95%	27499	62%	**71	98%
SNPE Vectan A0	<<locked>>	96%	37188	84%	**12	100%
SNPE Vectan BA 9	<<locked>>	89%	39320	89%	**06	100%
SNPE Vectan BA10	<<locked>>	79%	37521	85%	**1	100%
SNPE Vectan BA7 1/2	<<locked>>	96%	32387	73%	**06	99%
SNPE Vectan BA9 1/2	<<locked>>	90%	38464	87%	**09	100%
Shooters World Auto Pistol	<<locked>>	72%	39088	88%	**14	98%
[Shooters World Major Pistol]*	<<locked>>	90%	37956	86%	**43	88%
Somchem MP200	<<locked>>	89%	39653	90%	**68	100%
Somchem MS200	<<locked>>	92%	37840	86%	**32	100%
Somchem S221	<<locked>>	83%	39392	89%	**34	94%
Vihtavuori 3N37 👍	<<locked>>	96%	38058	86%	**94	100%
[Vihtavuori 3N38]*	<<locked>>	95%	25208	57%	**60	85%
Vihtavuori N310	<<locked>>	70%	36912	83%	**8	100%
Vihtavuori N320	<<locked>>	87%	39204	89%	**66	100%
Vihtavuori N32C Tin Star	<<locked>>	96%	25396	57%	**3	100%
Vihtavuori N330	<<locked>>	89%	38551	87%	**19	100%
Vihtavuori N340 👍	<<locked>>	93%	38653	87%	**42	100%
Vihtavuori N350	<<locked>>	95%	33547	76%	**38	100%
Winchester 231	<<locked>>	75%	38392	87%	**89	100%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AP 100]*	<<locked>>	72%	13764	31%	**4	80%
ADI AP 70N	<<locked>>	62%	23743	54%	**8	100%
ADI AS 30	<<locked>>	62%	20334	46%	**3	100%
ADI AS 50N	<<locked>>	61%	20740	47%	**6	100%
Accurate No. 2	<<locked>>	61%	18347	41%	**9	97%
Accurate No. 5	<<locked>>	62%	27470	62%	**70	94%
[Accurate No. 7]*	<<locked>>	79%	25425	57%	**86	81%
Accurate Solo 1000	<<locked>>	61%	19841	45%	**7	100%
Accurate Solo 1250	<<locked>>	62%	16549	37%	**7	100%
Alliant BULLSEYE	<<locked>>	61%	21292	48%	**8	100%
[Alliant POWER PISTOL]*	<<locked>>	62%	15374	35%	**6	81%
Alliant UNIQUE	<<locked>>	60%	15505	35%	**0	97%
Baschieri & Pellagri 100	<<locked>>	62%	19014	43%	**7	100%
Hodgdon Clays	<<locked>>	63%	24395	55%	**0	100%
Hodgdon HP38	<<locked>>	61%	32634	74%	**30	100%
Hodgdon HS-6	<<locked>>	61%	21770	49%	**8	93%
Hodgdon Longshot	<<locked>>	62%	25019	57%	**24	97%
Hodgdon Universal	<<locked>>	61%	18913	43%	**6	100%
Hodgdon TrailBoss	<<locked>>	89%	10457	24%	**6	100%
Lovex D036	<<locked>>	62%	27427	62%	**70	94%
[Lovex D037.1]*	<<locked>>	79%	25425	57%	**86	81%
Lovex S011	<<locked>>	60%	24004	54%	**9	100%
Lovex S020	<<locked>>	61%	18318	41%	**9	100%
Maxam CSB 1	<<locked>>	60%	14678	33%	**1	100%
Maxam CSB 2	<<locked>>	61%	15273	35%	**3	100%
Maxam CSB 3	<<locked>>	61%	17854	40%	**7	100%
Maxam CSB 4	<<locked>>	63%	20015	45%	**6	100%
Maxam CSB 5	<<locked>>	62%	22626	51%	**0	100%
Ramshot Silhouette	<<locked>>	61%	22379	51%	**4	99%
Ramshot True Blue	<<locked>>	61%	25469	58%	**27	97%
Ramshot Zip	<<locked>>	61%	31430	71%	**27	100%
ReloadSwiss RS 12	<<locked>>	61%	20653	47%	**6	100%
ReloadSwiss RS 20	<<locked>>	61%	13808	31%	**0	98%
[ReloadSwiss RS 24]*	<<locked>>	77%	20856	47%	**1	80%
Rottweil P 801	<<locked>>	61%	24047	54%	**9	100%
[Rottweil P 806]*	<<locked>>	65%	10095	23%	**7	80%
SNPE Vectan A0	<<locked>>	61%	15171	34%	**4	96%
SNPE Vectan BA 9	<<locked>>	61%	18855	43%	**6	100%
SNPE Vectan BA10	<<locked>>	60%	23743	54%	**0	100%
[SNPE Vectan BA7 1/2]*	<<locked>>	60%	12401	28%	**1	85%
SNPE Vectan BA9 1/2	<<locked>>	60%	17593	40%	**6	100%
Shooters World Auto Pistol	<<locked>>	62%	27427	62%	**70	94%
[Shooters World Major Pistol]*	<<locked>>	79%	25425	57%	**86	81%
Somchem MP200	<<locked>>	60%	17825	40%	**6	97%
Somchem MS200	<<locked>>	62%	17695	40%	**6	99%
[Somchem S221]*	<<locked>>	61%	19305	44%	**5	83%
[Vihtavuori 3N37]*	<<locked>>	62%	14228	32%	**0	89%
[Vihtavuori 3N38]*	<<locked>>	87%	19711	45%	**8	80%
Vihtavuori N310	<<locked>>	61%	28805	65%	**6	100%
Vihtavuori N320	<<locked>>	60%	18855	43%	**0	100%
Vihtavuori N32C Tin Star	<<locked>>	60%	10994	25%	**3	100%
Vihtavuori N330	<<locked>>	62%	17637	40%	**3	100%
Vihtavuori N340	<<locked>>	61%	16070	36%	**6	98%
[Vihtavuori N350]*	<<locked>>	61%	12531	28%	**4	87%
Winchester 231	<<locked>>	61%	25440	58%	**8	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