Load data for .38 Super Auto + .357 | 158gr | Geco FMJ FLAT NOSE

Recommended Powder(s): Alliant UNIQUE, Hodgdon Longshot, ReloadSwiss RS 20, Somchem MP200, Vihtavuori N340

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:	0.674" \| 17.1mm
Caliber:	.38 Super Auto load data
Case Length (l3):	0.890" \| 22.6mm
Cartridge Length (C.O.L.):	1.261" \| 32.0mm
Seated Depth:	0.303" \| 7.7mm
Shank Seated Depth:	0.303" \| 7.7mm
Case Capacity:	17.6 Grains of Water \| 1.14 cm³
Primer Size:	Small Pistol (SP)
Max. allowed Pressure:	33359 psi \| 2300 bar
LID:	LID_B9008_C583
Last updated:	2025-02-02

Load data for 114 loads in caliber .38 Super Auto with .357 | 158gr | Geco FMJ FLAT NOSE bullet and 57 powders such as Alliant UNIQUE, Hodgdon Longshot, ReloadSwiss RS 20, Somchem MP200, 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%	25744	77%	**47	92%
ADI AP 70N	<<locked>>	69%	29660	89%	**37	100%
ADI APS 350	<<locked>>	70%	29617	89%	**9	100%
ADI APS 450	<<locked>>	71%	28471	85%	**9	100%
ADI AS 30	<<locked>>	75%	28935	87%	**5	100%
ADI AS 50N	<<locked>>	72%	28950	87%	**4	100%
Accurate No. 2	<<locked>>	74%	27905	84%	**17	100%
Accurate No. 5	<<locked>>	62%	28703	86%	**96	95%
[Accurate No. 7]*	<<locked>>	81%	29356	88%	**45	84%
Accurate Solo 1000	<<locked>>	73%	28007	84%	**5	100%
Accurate Solo 1250	<<locked>>	82%	29066	87%	**14	100%
Alliant BULLSEYE	<<locked>>	71%	28921	87%	**63	100%
Alliant POWER PISTOL	<<locked>>	83%	28732	86%	**32	93%
Alliant UNIQUE 👍	<<locked>>	81%	27963	84%	**60	100%
Baschieri & Pellagri 100	<<locked>>	76%	28514	85%	**1	100%
Hodgdon Clays	<<locked>>	70%	29834	89%	**6	100%
Hodgdon HS-6	<<locked>>	68%	29095	87%	**86	97%
Hodgdon Longshot 👍	<<locked>>	65%	29298	88%	**93	99%
Hodgdon Universal	<<locked>>	76%	29660	89%	**37	100%
Hodgdon CFE Pistol	<<locked>>	78%	29124	87%	**27	100%
Hodgdon TrailBoss	<<locked>>	95%	11806	35%	**9	100%
Lovex D036	<<locked>>	62%	28645	86%	**93	95%
[Lovex D037.1]*	<<locked>>	81%	29356	88%	**45	84%
Lovex S011	<<locked>>	65%	28297	85%	**4	100%
Lovex S020	<<locked>>	75%	29167	87%	**43	100%
Maxam CSB 1	<<locked>>	85%	29356	88%	**14	100%
Maxam CSB 2	<<locked>>	83%	29356	88%	**27	100%
Maxam CSB 3	<<locked>>	79%	28993	87%	**8	100%
Maxam CSB 4	<<locked>>	74%	28384	85%	**5	100%
Maxam CSB 5	<<locked>>	71%	29573	89%	**5	100%
Ramshot Silhouette	<<locked>>	68%	28674	86%	**66	100%
Ramshot True Blue	<<locked>>	63%	28326	85%	**73	98%
ReloadSwiss RS 12	<<locked>>	70%	28427	85%	**01	100%
ReloadSwiss RS 14	<<locked>>	93%	10428	31%	**9	100%
ReloadSwiss RS 20 👍	<<locked>>	85%	29138	87%	**83	100%
[ReloadSwiss RS 24]*	<<locked>>	86%	28906	87%	**25	87%
Rottweil P 801	<<locked>>	65%	28253	85%	**1	100%
Rottweil P 806	<<locked>>	96%	29530	89%	**01	98%
SNPE Vectan A0	<<locked>>	84%	28805	86%	**30	100%
SNPE Vectan BA 9	<<locked>>	75%	28703	86%	**07	100%
SNPE Vectan BA10	<<locked>>	66%	28456	85%	**9	100%
SNPE Vectan BA7 1/2	<<locked>>	92%	29965	90%	**79	98%
SNPE Vectan BA9 1/2	<<locked>>	78%	29762	89%	**27	100%
Shooters World Auto Pistol	<<locked>>	62%	28645	86%	**93	95%
[Shooters World Major Pistol]*	<<locked>>	81%	29356	88%	**45	84%
Somchem MP200 👍	<<locked>>	76%	28979	87%	**60	100%
Somchem MS200	<<locked>>	80%	29254	88%	**47	100%
Somchem S221	<<locked>>	73%	29443	88%	**15	90%
Vihtavuori 3N37	<<locked>>	85%	29515	88%	**06	99%
[Vihtavuori 3N38]*	<<locked>>	95%	26194	79%	**76	86%
[Vihtavuori N105]*	<<locked>>	97%	20871	63%	**37	86%
Vihtavuori N320	<<locked>>	75%	29327	88%	**4	100%
Vihtavuori N32C Tin Star	<<locked>>	95%	25527	77%	**9	100%
Vihtavuori N330	<<locked>>	77%	28964	87%	**33	100%
Vihtavuori N340 👍	<<locked>>	81%	29283	88%	**53	100%
Vihtavuori N350	<<locked>>	88%	28848	86%	**93	99%
Winchester 231	<<locked>>	65%	29312	88%	**07	100%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AP 100]*	<<locked>>	71%	13996	42%	**3	81%
ADI AP 70N	<<locked>>	61%	24207	73%	**8	100%
ADI APS 350	<<locked>>	60%	22872	69%	**7	100%
ADI APS 450	<<locked>>	61%	22263	67%	**0	100%
ADI AS 30	<<locked>>	62%	21161	63%	**0	100%
ADI AS 50N	<<locked>>	61%	21321	64%	**9	100%
Accurate No. 2	<<locked>>	61%	18739	56%	**3	97%
Accurate No. 5	<<locked>>	60%	26861	81%	**66	94%
[Accurate No. 7]*	<<locked>>	77%	24801	74%	**79	81%
Accurate Solo 1000	<<locked>>	61%	20349	61%	**3	100%
Accurate Solo 1250	<<locked>>	62%	16984	51%	**6	100%
Alliant BULLSEYE	<<locked>>	61%	21553	65%	**5	100%
[Alliant POWER PISTOL]*	<<locked>>	62%	15534	47%	**6	82%
Alliant UNIQUE	<<locked>>	60%	16085	48%	**3	98%
Baschieri & Pellagri 100	<<locked>>	62%	19464	58%	**0	100%
Hodgdon Clays	<<locked>>	60%	23003	69%	**7	100%
Hodgdon HS-6	<<locked>>	61%	22989	69%	**01	94%
Hodgdon Longshot	<<locked>>	60%	24555	74%	**24	97%
Hodgdon Universal	<<locked>>	60%	19406	58%	**6	100%
Hodgdon CFE Pistol	<<locked>>	61%	18231	55%	**6	100%
Hodgdon TrailBoss	<<locked>>	90%	10907	33%	**9	100%
Lovex D036	<<locked>>	60%	26818	80%	**66	94%
[Lovex D037.1]*	<<locked>>	77%	24801	74%	**79	81%
Lovex S011	<<locked>>	62%	26136	78%	**1	100%
Lovex S020	<<locked>>	61%	18507	55%	**6	100%
Maxam CSB 1	<<locked>>	60%	15127	45%	**7	100%
Maxam CSB 2	<<locked>>	61%	15766	47%	**3	100%
Maxam CSB 3	<<locked>>	61%	18391	55%	**0	100%
Maxam CSB 4	<<locked>>	60%	19000	57%	**3	100%
Maxam CSB 5	<<locked>>	62%	23221	70%	**6	100%
Ramshot Silhouette	<<locked>>	60%	22452	67%	**8	99%
Ramshot True Blue	<<locked>>	61%	26760	80%	**47	98%
ReloadSwiss RS 12	<<locked>>	60%	20987	63%	**5	100%
ReloadSwiss RS 14	<<locked>>	88%	9674	29%	**9	100%
ReloadSwiss RS 20	<<locked>>	60%	14272	43%	**3	98%
[ReloadSwiss RS 24]*	<<locked>>	75%	20595	62%	**1	80%
Rottweil P 801	<<locked>>	60%	24613	74%	**8	100%
[Rottweil P 806]*	<<locked>>	64%	10182	31%	**4	81%
SNPE Vectan A0	<<locked>>	60%	15432	46%	**7	97%
SNPE Vectan BA 9	<<locked>>	61%	18985	57%	**3	100%
SNPE Vectan BA10	<<locked>>	60%	24352	73%	**3	100%
[SNPE Vectan BA7 1/2]*	<<locked>>	62%	13532	41%	**4	87%
SNPE Vectan BA9 1/2	<<locked>>	60%	17941	54%	**6	100%
Shooters World Auto Pistol	<<locked>>	60%	26818	80%	**66	94%
[Shooters World Major Pistol]*	<<locked>>	77%	24801	74%	**79	81%
Somchem MP200	<<locked>>	62%	19580	59%	**2	98%
Somchem MS200	<<locked>>	62%	18057	54%	**9	99%
[Somchem S221]*	<<locked>>	61%	20088	60%	**5	84%
Vihtavuori 3N37	<<locked>>	61%	14301	43%	**6	90%
[Vihtavuori 3N38]*	<<locked>>	85%	19566	59%	**1	80%
[Vihtavuori N105]*	<<locked>>	88%	16389	49%	**8	80%
Vihtavuori N320	<<locked>>	60%	19493	58%	**3	100%
Vihtavuori N32C Tin Star	<<locked>>	61%	11516	35%	**6	100%
Vihtavuori N330	<<locked>>	62%	18130	54%	**2	100%
Vihtavuori N340	<<locked>>	61%	16302	49%	**6	98%
[Vihtavuori N350]*	<<locked>>	60%	12676	38%	**4	88%
Winchester 231	<<locked>>	60%	25614	77%	**5	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