Load data for .38 Super Auto + .357 | 170gr | Speer SP MAG GD

Recommended Powder(s): Alliant UNIQUE, Hodgdon Longshot, Ramshot True Blue, Rottweil P 806, SNPE Vectan BA7 1/2

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.357 \| 170gr \| Speer SP MAG GD
Manufacturer SKU:	4230
Bullet Weight:	170gr \| 11.0g
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_B6228_C583
Last updated:	2025-02-02

Load data for 104 loads in caliber .38 Super Auto with .357 | 170gr | Speer SP MAG GD bullet and 52 powders such as Alliant UNIQUE, Hodgdon Longshot, Ramshot True Blue, Rottweil P 806, SNPE Vectan BA7 1/2. 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%	27398	82%	**33	94%
ADI AP 70N	<<locked>>	67%	29037	87%	**4	100%
ADI APS 350	<<locked>>	68%	28166	84%	**7	100%
ADI APS 450	<<locked>>	72%	29472	88%	**3	100%
ADI AS 30	<<locked>>	76%	29979	90%	**6	100%
ADI AS 50N	<<locked>>	70%	28021	84%	**2	100%
Accurate No. 2	<<locked>>	75%	29341	88%	**4	100%
[Accurate No. 7]*	<<locked>>	81%	29747	89%	**09	86%
Accurate Solo 1000	<<locked>>	74%	29298	88%	**9	100%
Accurate Solo 1250	<<locked>>	80%	28456	85%	**1	100%
Alliant BULLSEYE	<<locked>>	70%	28340	85%	**10	100%
Alliant POWER PISTOL	<<locked>>	82%	28892	87%	**93	94%
Alliant UNIQUE 👍	<<locked>>	82%	29298	88%	**33	100%
Baschieri & Pellagri 100	<<locked>>	77%	29921	90%	**2	100%
Hodgdon Clays	<<locked>>	68%	28543	86%	**3	100%
Hodgdon HS-6	<<locked>>	67%	29037	87%	**43	98%
Hodgdon Longshot 👍	<<locked>>	65%	29443	88%	**47	99%
Hodgdon Universal	<<locked>>	75%	29037	87%	**4	100%
Hodgdon CFE Pistol	<<locked>>	76%	28471	85%	**4	100%
[Lovex D037.1]*	<<locked>>	81%	29747	89%	**09	86%
Lovex S011	<<locked>>	66%	29675	89%	**8	100%
Lovex S020	<<locked>>	74%	28500	85%	**4	100%
Maxam CSB 1	<<locked>>	84%	28848	86%	**1	100%
Maxam CSB 2	<<locked>>	81%	28601	86%	**4	100%
Maxam CSB 3	<<locked>>	77%	28239	85%	**8	100%
Maxam CSB 4	<<locked>>	76%	29588	89%	**5	100%
Maxam CSB 5	<<locked>>	69%	28558	86%	**3	100%
Ramshot Silhouette	<<locked>>	67%	28572	86%	**20	100%
Ramshot True Blue 👍	<<locked>>	64%	29907	90%	**47	99%
ReloadSwiss RS 12	<<locked>>	72%	29602	89%	**1	100%
ReloadSwiss RS 20	<<locked>>	84%	29051	87%	**33	100%
[ReloadSwiss RS 24]*	<<locked>>	86%	29254	88%	**89	88%
Rottweil P 801	<<locked>>	66%	29530	89%	**2	100%
Rottweil P 806 👍	<<locked>>	94%	28660	86%	**45	99%
SNPE Vectan A0	<<locked>>	83%	28485	85%	**1	100%
SNPE Vectan BA 9	<<locked>>	74%	28079	84%	**5	100%
SNPE Vectan BA10	<<locked>>	67%	29457	88%	**3	100%
SNPE Vectan BA7 1/2 👍	<<locked>>	91%	29849	89%	**40	99%
SNPE Vectan BA9 1/2	<<locked>>	77%	29080	87%	**4	100%
[Shooters World Major Pistol]*	<<locked>>	81%	29747	89%	**09	86%
Somchem MP200	<<locked>>	74%	28500	85%	**14	100%
Somchem MS200	<<locked>>	79%	28790	86%	**7	100%
Somchem S221	<<locked>>	72%	29370	88%	**73	92%
Vihtavuori 3N37	<<locked>>	84%	29443	88%	**60	99%
[Vihtavuori 3N38]*	<<locked>>	96%	27818	83%	**63	88%
[Vihtavuori N105]*	<<locked>>	96%	20784	62%	**01	87%
Vihtavuori N320	<<locked>>	73%	28369	85%	**2	100%
Vihtavuori N32C Tin Star	<<locked>>	96%	26629	80%	**0	100%
Vihtavuori N330	<<locked>>	76%	28529	86%	**4	100%
Vihtavuori N340	<<locked>>	80%	28863	87%	**04	100%
Vihtavuori N350	<<locked>>	87%	28921	87%	**47	99%
Winchester 231	<<locked>>	63%	28732	86%	**5	100%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AP 100]*	<<locked>>	67%	12560	38%	**8	80%
ADI AP 70N	<<locked>>	60%	23322	70%	**5	100%
ADI APS 350	<<locked>>	61%	23685	71%	**8	100%
ADI APS 450	<<locked>>	62%	23134	69%	**4	100%
ADI AS 30	<<locked>>	60%	19783	59%	**7	100%
ADI AS 50N	<<locked>>	62%	22118	66%	**3	100%
Accurate No. 2	<<locked>>	62%	19479	58%	**3	98%
[Accurate No. 7]*	<<locked>>	73%	22423	67%	**01	81%
Accurate Solo 1000	<<locked>>	62%	21161	63%	**7	100%
Accurate Solo 1250	<<locked>>	60%	16201	49%	**1	100%
Alliant BULLSEYE	<<locked>>	62%	22539	68%	**2	100%
[Alliant POWER PISTOL]*	<<locked>>	60%	15026	45%	**3	83%
Alliant UNIQUE	<<locked>>	61%	16404	49%	**0	98%
Baschieri & Pellagri 100	<<locked>>	60%	18521	56%	**1	100%
Hodgdon Clays	<<locked>>	61%	23888	72%	**4	100%
Hodgdon HS-6	<<locked>>	61%	22756	68%	**8	95%
Hodgdon Longshot	<<locked>>	61%	26092	78%	**04	98%
Hodgdon Universal	<<locked>>	61%	19841	59%	**9	100%
Hodgdon CFE Pistol	<<locked>>	62%	18695	56%	**0	100%
[Lovex D037.1]*	<<locked>>	73%	22423	67%	**01	81%
Lovex S011	<<locked>>	61%	25469	76%	**2	100%
Lovex S020	<<locked>>	61%	19377	58%	**6	100%
Maxam CSB 1	<<locked>>	61%	15490	46%	**4	100%
Maxam CSB 2	<<locked>>	62%	16447	49%	**0	100%
Maxam CSB 3	<<locked>>	62%	18956	57%	**3	100%
Maxam CSB 4	<<locked>>	61%	19667	59%	**7	100%
Maxam CSB 5	<<locked>>	60%	21959	66%	**0	100%
Ramshot Silhouette	<<locked>>	61%	23438	70%	**5	100%
Ramshot True Blue	<<locked>>	61%	26542	80%	**04	98%
ReloadSwiss RS 12	<<locked>>	61%	21741	65%	**6	100%
ReloadSwiss RS 20	<<locked>>	61%	14678	44%	**3	99%
[ReloadSwiss RS 24]*	<<locked>>	72%	19276	58%	**2	81%
Rottweil P 801	<<locked>>	61%	25382	76%	**9	100%
[Rottweil P 806]*	<<locked>>	62%	9137	27%	**5	81%
SNPE Vectan A0	<<locked>>	61%	16012	48%	**7	98%
SNPE Vectan BA 9	<<locked>>	62%	19827	59%	**0	100%
SNPE Vectan BA10	<<locked>>	61%	25164	75%	**7	100%
[SNPE Vectan BA7 1/2]*	<<locked>>	61%	12937	39%	**8	88%
SNPE Vectan BA9 1/2	<<locked>>	61%	18637	56%	**3	100%
[Shooters World Major Pistol]*	<<locked>>	73%	22423	67%	**01	81%
Somchem MP200	<<locked>>	60%	18811	56%	**3	99%
Somchem MS200	<<locked>>	60%	17260	52%	**3	99%
[Somchem S221]*	<<locked>>	61%	19725	59%	**5	85%
Vihtavuori 3N37	<<locked>>	62%	14881	45%	**7	92%
[Vihtavuori 3N38]*	<<locked>>	82%	18260	55%	**2	81%
[Vihtavuori N105]*	<<locked>>	85%	15127	45%	**3	80%
Vihtavuori N320	<<locked>>	61%	20160	60%	**7	100%
Vihtavuori N32C Tin Star	<<locked>>	62%	11574	35%	**3	100%
Vihtavuori N330	<<locked>>	60%	17361	52%	**3	100%
Vihtavuori N340	<<locked>>	62%	16998	51%	**7	99%
Vihtavuori N350	<<locked>>	61%	13169	39%	**7	90%
Winchester 231	<<locked>>	61%	26803	80%	**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