Load data for .38 Super Auto + .357 | 158gr | Speer SP MAG GD

Recommended Powder(s): Alliant UNIQUE, Ramshot True Blue, ReloadSwiss RS 20, Somchem MP200, Vihtavuori N340

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.357 \| 158gr \| Speer SP MAG GD
Manufacturer SKU:	4215
Bullet Weight:	158gr \| 10.2g
Bullet Diameter:	0.357" \| 9.07mm
Bullet Length:	0.680" \| 17.3mm
Caliber:	.38 Super Auto load data
Case Length (l3):	0.890" \| 22.6mm
Cartridge Length (C.O.L.):	1.261" \| 32.0mm
Seated Depth:	0.309" \| 7.9mm
Shank Seated Depth:	0.309" \| 7.9mm
Case Capacity:	17.6 Grains of Water \| 1.14 cm³
Primer Size:	Small Pistol (SP)
Max. allowed Pressure:	33359 psi \| 2300 bar
LID:	LID_B6225_C583
Last updated:	2025-02-02

Load data for 114 loads in caliber .38 Super Auto with .357 | 158gr | Speer SP MAG GD bullet and 57 powders such as Alliant UNIQUE, Ramshot True Blue, 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>>	97%	25918	78%	**53	92%
ADI AP 70N	<<locked>>	70%	29501	88%	**33	100%
ADI APS 350	<<locked>>	72%	29675	89%	**3	100%
ADI APS 450	<<locked>>	72%	28529	86%	**2	100%
ADI AS 30	<<locked>>	76%	28805	86%	**5	100%
ADI AS 50N	<<locked>>	73%	28790	86%	**4	100%
Accurate No. 2	<<locked>>	75%	27905	84%	**14	100%
Accurate No. 5	<<locked>>	63%	28631	86%	**93	95%
[Accurate No. 7]*	<<locked>>	82%	29167	87%	**42	84%
Accurate Solo 1000	<<locked>>	74%	28166	84%	**8	100%
Accurate Solo 1250	<<locked>>	83%	29182	87%	**17	100%
Alliant BULLSEYE	<<locked>>	72%	29066	87%	**63	100%
Alliant POWER PISTOL	<<locked>>	84%	28877	87%	**32	93%
Alliant UNIQUE 👍	<<locked>>	85%	29805	89%	**86	100%
Baschieri & Pellagri 100	<<locked>>	77%	28558	86%	**1	100%
Hodgdon Clays	<<locked>>	68%	27659	83%	**0	100%
Hodgdon HS-6	<<locked>>	69%	29080	87%	**89	97%
Hodgdon Longshot	<<locked>>	66%	29515	88%	**93	98%
Hodgdon Universal	<<locked>>	77%	29501	88%	**33	100%
Hodgdon CFE Pistol	<<locked>>	79%	29124	87%	**27	100%
Hodgdon TrailBoss	<<locked>>	96%	11385	34%	**9	100%
Lovex D036	<<locked>>	63%	28572	86%	**93	95%
[Lovex D037.1]*	<<locked>>	82%	29167	87%	**42	84%
Lovex S011	<<locked>>	66%	28442	85%	**8	100%
Lovex S020	<<locked>>	76%	29167	87%	**43	100%
Maxam CSB 1	<<locked>>	87%	29428	88%	**14	100%
Maxam CSB 2	<<locked>>	84%	29022	87%	**27	100%
Maxam CSB 3	<<locked>>	80%	29080	87%	**1	100%
Maxam CSB 4	<<locked>>	76%	28282	85%	**5	100%
Maxam CSB 5	<<locked>>	72%	29646	89%	**5	100%
Ramshot Silhouette	<<locked>>	69%	28877	87%	**70	100%
Ramshot True Blue 👍	<<locked>>	66%	29950	90%	**93	99%
ReloadSwiss RS 12	<<locked>>	72%	27920	84%	**01	100%
ReloadSwiss RS 14	<<locked>>	95%	9834	29%	**2	100%
ReloadSwiss RS 20 👍	<<locked>>	87%	29312	88%	**83	100%
[ReloadSwiss RS 24]*	<<locked>>	88%	29153	87%	**25	87%
Rottweil P 801	<<locked>>	66%	28050	84%	**8	100%
Rottweil P 806	<<locked>>	96%	27702	83%	**78	98%
SNPE Vectan A0	<<locked>>	85%	29080	87%	**30	100%
SNPE Vectan BA 9	<<locked>>	76%	28689	86%	**04	100%
SNPE Vectan BA10	<<locked>>	67%	28500	85%	**2	100%
SNPE Vectan BA7 1/2	<<locked>>	93%	29994	90%	**83	98%
SNPE Vectan BA9 1/2	<<locked>>	79%	29573	89%	**27	100%
Shooters World Auto Pistol	<<locked>>	63%	28572	86%	**93	95%
[Shooters World Major Pistol]*	<<locked>>	82%	29167	87%	**42	84%
Somchem MP200 👍	<<locked>>	77%	28790	86%	**63	100%
Somchem MS200	<<locked>>	81%	29211	88%	**47	100%
Somchem S221	<<locked>>	74%	29283	88%	**12	90%
Vihtavuori 3N37	<<locked>>	86%	29457	88%	**06	99%
[Vihtavuori 3N38]*	<<locked>>	96%	25976	78%	**79	86%
[Vihtavuori N105]*	<<locked>>	96%	19377	58%	**07	84%
Vihtavuori N320	<<locked>>	76%	29225	88%	**4	100%
Vihtavuori N32C Tin Star	<<locked>>	96%	25295	76%	**6	100%
Vihtavuori N330	<<locked>>	79%	28935	87%	**37	100%
Vihtavuori N340 👍	<<locked>>	83%	29443	88%	**53	100%
Vihtavuori N350	<<locked>>	89%	29080	87%	**93	99%
Winchester 231	<<locked>>	66%	29428	88%	**07	100%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AP 100]*	<<locked>>	72%	13721	41%	**7	80%
ADI AP 70N	<<locked>>	60%	22147	66%	**2	100%
ADI APS 350	<<locked>>	61%	22931	69%	**7	100%
ADI APS 450	<<locked>>	62%	22379	67%	**0	100%
ADI AS 30	<<locked>>	60%	18956	57%	**4	100%
ADI AS 50N	<<locked>>	62%	21161	63%	**9	100%
Accurate No. 2	<<locked>>	62%	18536	56%	**9	97%
Accurate No. 5	<<locked>>	61%	27064	81%	**66	94%
[Accurate No. 7]*	<<locked>>	78%	24801	74%	**79	81%
Accurate Solo 1000	<<locked>>	62%	20305	61%	**0	100%
Accurate Solo 1250	<<locked>>	60%	15374	46%	**0	100%
Alliant BULLSEYE	<<locked>>	62%	21495	64%	**8	100%
[Alliant POWER PISTOL]*	<<locked>>	60%	14185	43%	**6	80%
Alliant UNIQUE	<<locked>>	61%	15519	47%	**6	97%
Baschieri & Pellagri 100	<<locked>>	60%	17666	53%	**3	100%
Hodgdon Clays	<<locked>>	61%	23134	69%	**7	100%
Hodgdon HS-6	<<locked>>	61%	21509	64%	**8	93%
Hodgdon Longshot	<<locked>>	61%	24685	74%	**24	97%
Hodgdon Universal	<<locked>>	61%	18826	56%	**9	100%
Hodgdon CFE Pistol	<<locked>>	62%	17738	53%	**3	100%
Hodgdon TrailBoss	<<locked>>	91%	10428	31%	**3	100%
Lovex D036	<<locked>>	61%	27021	81%	**73	94%
[Lovex D037.1]*	<<locked>>	78%	24801	74%	**79	81%
Lovex S011	<<locked>>	61%	24352	73%	**8	100%
Lovex S020	<<locked>>	61%	18304	55%	**6	100%
Maxam CSB 1	<<locked>>	61%	14707	44%	**1	100%
Maxam CSB 2	<<locked>>	62%	15418	46%	**3	100%
Maxam CSB 3	<<locked>>	62%	18072	54%	**6	100%
Maxam CSB 4	<<locked>>	61%	18768	56%	**3	100%
Maxam CSB 5	<<locked>>	60%	20987	63%	**7	100%
Ramshot Silhouette	<<locked>>	61%	22234	67%	**8	99%
Ramshot True Blue	<<locked>>	61%	25135	75%	**27	97%
ReloadSwiss RS 12	<<locked>>	61%	20450	61%	**9	100%
ReloadSwiss RS 14	<<locked>>	90%	8949	27%	**9	100%
ReloadSwiss RS 20	<<locked>>	61%	13837	41%	**7	98%
[ReloadSwiss RS 24]*	<<locked>>	76%	20537	62%	**1	80%
Rottweil P 801	<<locked>>	61%	24062	72%	**5	100%
[Rottweil P 806]*	<<locked>>	67%	10066	30%	**7	81%
SNPE Vectan A0	<<locked>>	61%	15243	46%	**4	97%
SNPE Vectan BA 9	<<locked>>	62%	18927	57%	**3	100%
SNPE Vectan BA10	<<locked>>	61%	24352	73%	**3	100%
[SNPE Vectan BA7 1/2]*	<<locked>>	61%	12285	37%	**8	85%
SNPE Vectan BA9 1/2	<<locked>>	61%	17753	53%	**3	100%
Shooters World Auto Pistol	<<locked>>	61%	27021	81%	**73	94%
[Shooters World Major Pistol]*	<<locked>>	78%	24801	74%	**79	81%
Somchem MP200	<<locked>>	60%	17854	54%	**2	98%
Somchem MS200	<<locked>>	60%	16433	49%	**0	98%
[Somchem S221]*	<<locked>>	61%	18579	56%	**8	82%
[Vihtavuori 3N37]*	<<locked>>	62%	14011	42%	**0	89%
[Vihtavuori 3N38]*	<<locked>>	88%	20436	61%	**4	81%
[Vihtavuori N105]*	<<locked>>	92%	17085	51%	**5	81%
Vihtavuori N320	<<locked>>	61%	19116	57%	**3	100%
Vihtavuori N32C Tin Star	<<locked>>	62%	10907	33%	**2	100%
Vihtavuori N330	<<locked>>	60%	16317	49%	**3	100%
Vihtavuori N340	<<locked>>	62%	16114	48%	**3	98%
[Vihtavuori N350]*	<<locked>>	61%	12430	37%	**7	87%
Winchester 231	<<locked>>	61%	25570	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