Load data for .38 Super Auto + .357 | 170gr | Sierra FMJ RN SportsMaster

Recommended Powder(s):

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.357 \| 170gr \| Sierra FMJ RN SportsMaster
Manufacturer SKU:	8350
Bullet Weight:	170gr \| 11.0g
Bullet Diameter:	0.357" \| 9.07mm
Bullet Length:	<<locked>>
Caliber:	.38 Super Auto load data
Case Length (l3):	0.890" \| 22.6mm
Cartridge Length (C.O.L.):	<<locked>>
Seated Depth:	<<locked>>
Shank Seated Depth:	<<locked>>
Case Capacity:	17.6 Grains of Water \| 1.14 cm³
Primer Size:	Small Pistol (SP)
Max. allowed Pressure:	33359 psi \| 2300 bar
LID:	LID_B5949_C583
Last updated:	2026-01-21

Load data for 70 loads in caliber .38 Super Auto with .357 | 170gr | Sierra FMJ RN SportsMaster bullet and 35 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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C.O.L. (mm)
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Use the Personalized Load Calculator to customize loads to your own specific requirements. Find more details in the help section.

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%	24613	74%	**5	90%
ADI AP 70N	<<locked>>	71%	29573	89%	**8	100%
Accurate No. 5	<<locked>>	66%	29965	90%	**20	95%
[Accurate No. 7]*	<<locked>>	84%	28979	87%	**47	83%
Alliant BULLSEYE	<<locked>>	75%	29704	89%	**4	100%
Alliant POWER PISTOL	<<locked>>	87%	29341	88%	**50	93%
Alliant Sport Pistol	<<locked>>	70%	29704	89%	**8	100%
Alliant UNIQUE	<<locked>>	86%	29240	88%	**4	100%
Hodgdon HS-6	<<locked>>	72%	29965	90%	**07	97%
Hodgdon Longshot	<<locked>>	67%	28877	87%	**7	98%
Hodgdon Universal	<<locked>>	79%	29573	89%	**8	100%
Hodgdon CFE Pistol	<<locked>>	82%	29820	89%	**1	100%
Lovex D036	<<locked>>	66%	29907	90%	**20	95%
[Lovex D037.1]*	<<locked>>	84%	28979	87%	**47	83%
Lovex S020	<<locked>>	79%	29646	89%	**5	100%
Maxam CSB 2	<<locked>>	86%	28993	87%	**5	100%
Ramshot Silhouette	<<locked>>	71%	29312	88%	**4	100%
Ramshot True Blue	<<locked>>	67%	29602	89%	**01	98%
ReloadSwiss RS 20	<<locked>>	89%	29167	87%	**7	100%
[ReloadSwiss RS 24]*	<<locked>>	90%	29240	88%	**37	86%
Rottweil P 806	<<locked>>	96%	25469	76%	**63	97%
SNPE Vectan A0	<<locked>>	88%	29617	89%	**8	100%
SNPE Vectan BA7 1/2	<<locked>>	95%	29762	89%	**1	98%
SNPE Vectan BA9 1/2	<<locked>>	81%	29704	89%	**5	100%
SNPE Vectan SP 2	<<locked>>	84%	29066	87%	**66	95%
Shooters World Auto Pistol	<<locked>>	66%	29907	90%	**20	95%
[Shooters World Major Pistol]*	<<locked>>	84%	28979	87%	**47	83%
Somchem MP200	<<locked>>	80%	29747	89%	**8	100%
Somchem MS200	<<locked>>	84%	29892	90%	**5	100%
[Somchem S221]*	<<locked>>	76%	29472	88%	**20	89%
Vihtavuori 3N37 👍	<<locked>>	89%	30008	90%	**20	99%
[Vihtavuori 3N38]*	<<locked>>	97%	24526	74%	**8	84%
Vihtavuori N330	<<locked>>	82%	29994	90%	**1	100%
Vihtavuori N340	<<locked>>	84%	28703	86%	**1	100%
Vihtavuori N350 👍	<<locked>>	92%	29225	88%	**07	99%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AP 100]*	<<locked>>	94%	22916	69%	**9	89%
ADI AP 70N	<<locked>>	68%	27166	81%	**5	100%
Accurate No. 5	<<locked>>	61%	25193	76%	**8	93%
[Accurate No. 7]*	<<locked>>	81%	25382	76%	**7	80%
Alliant BULLSEYE	<<locked>>	69%	25106	75%	**2	100%
[Alliant POWER PISTOL]*	<<locked>>	75%	21248	64%	**8	87%
Alliant Sport Pistol	<<locked>>	64%	25077	75%	**2	100%
Alliant UNIQUE	<<locked>>	78%	24149	72%	**2	100%
Hodgdon HS-6	<<locked>>	64%	23438	70%	**5	94%
Hodgdon Longshot	<<locked>>	61%	23554	71%	**5	96%
Hodgdon Universal	<<locked>>	76%	27166	81%	**5	100%
Hodgdon CFE Pistol	<<locked>>	79%	27572	83%	**8	100%
Lovex D036	<<locked>>	61%	25150	75%	**5	93%
[Lovex D037.1]*	<<locked>>	81%	25382	76%	**7	80%
Lovex S020	<<locked>>	74%	25933	78%	**5	100%
Maxam CSB 2	<<locked>>	83%	26760	80%	**2	100%
Ramshot Silhouette	<<locked>>	65%	24453	73%	**5	99%
Ramshot True Blue	<<locked>>	62%	24816	74%	**8	96%
ReloadSwiss RS 20	<<locked>>	80%	22872	69%	**5	100%
[ReloadSwiss RS 24]*	<<locked>>	80%	21698	65%	**8	81%
Rottweil P 806	<<locked>>	84%	17245	52%	**2	91%
SNPE Vectan A0	<<locked>>	85%	27702	83%	**8	100%
SNPE Vectan BA7 1/2	<<locked>>	87%	24323	73%	**2	95%
SNPE Vectan BA9 1/2	<<locked>>	78%	27702	83%	**2	100%
[SNPE Vectan SP 2]*	<<locked>>	72%	19566	59%	**5	89%
Shooters World Auto Pistol	<<locked>>	61%	25150	75%	**5	93%
[Shooters World Major Pistol]*	<<locked>>	81%	25382	76%	**7	80%
Somchem MP200	<<locked>>	73%	24831	74%	**5	100%
Somchem MS200	<<locked>>	79%	26600	80%	**2	100%
[Somchem S221]*	<<locked>>	67%	22220	67%	**2	85%
Vihtavuori 3N37	<<locked>>	79%	22466	67%	**5	96%
[Vihtavuori 3N38]*	<<locked>>	92%	21596	65%	**2	81%
Vihtavuori N330	<<locked>>	78%	26498	79%	**5	100%
Vihtavuori N340	<<locked>>	79%	25614	77%	**5	100%
Vihtavuori N350	<<locked>>	83%	23061	69%	**8	96%

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