Load data for .357 Maximum + .357 | 125gr | Sierra JHC SportsMaster

Recommended Powder(s): Alliant POWER PISTOL

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.357 \| 125gr \| Sierra JHC SportsMaster
Manufacturer SKU:	8320
Bullet Weight:	125gr \| 8.1g
Bullet Diameter:	0.357" \| 9.07mm
Bullet Length:	0.534" \| 13.6mm
Caliber:	.357 Maximum load data
Case Length (l3):	1.600" \| 40.6mm
Cartridge Length (C.O.L.):	1.960" \| 49.8mm
Seated Depth:	0.174" \| 4.4mm
Shank Seated Depth:	0.174" \| 4.4mm
Case Capacity:	33.6 Grains of Water \| 2.18 cm³
Primer Size:	Small Pistol (SP)
Max. allowed Pressure:	44962 psi \| 3100 bar
LID:	LID_B5944_C515
Last updated:	2025-01-01

Load data for 108 loads in caliber .357 Maximum with .357 | 125gr | Sierra JHC SportsMaster bullet and 54 powders such as Alliant POWER PISTOL. 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".

Go to the bottom of the "Dashboard " page to set the measure system (imperial vs. metric)
No data yet
C.O.L. (Inch)
C.O.L. (mm)
We recommend you limit powder range to relevant brands to speed up re-calculation of results
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>>	86%	40277	90%	**57	100%
ADI APS 350	<<locked>>	71%	39842	89%	**62	100%
ADI APS 450	<<locked>>	70%	38667	86%	**75	100%
ADI AS 30	<<locked>>	70%	39320	87%	**14	100%
ADI AS 50N	<<locked>>	65%	38740	86%	**53	100%
[Accurate 4100]*	<<locked>>	84%	39363	88%	**99	84%
Accurate No. 2	<<locked>>	67%	39958	89%	**72	100%
Accurate No. 7	<<locked>>	65%	40306	90%	**06	95%
Accurate No. 9	<<locked>>	73%	40074	89%	**09	90%
Accurate Solo 1000	<<locked>>	69%	39537	88%	**50	100%
Accurate Solo 1250	<<locked>>	71%	38798	86%	**90	100%
Accurate TCM	<<locked>>	72%	39073	87%	**77	91%
[Alliant 2400]*	<<locked>>	82%	39407	88%	**16	87%
Alliant BLUE DOT	<<locked>>	85%	40422	90%	**99	94%
Alliant BULLSEYE	<<locked>>	63%	39769	88%	**81	100%
Alliant POWER PISTOL 👍	<<locked>>	69%	39523	88%	**93	100%
Alliant UNIQUE	<<locked>>	70%	39494	88%	**85	100%
Baschieri & Pellagri 100	<<locked>>	69%	39537	88%	**50	100%
Hodgdon Clays	<<locked>>	68%	38870	86%	**65	100%
[Hodgdon LilGun]*	<<locked>>	92%	39639	88%	**65	87%
Hodgdon Universal	<<locked>>	66%	40306	90%	**32	100%
Hodgdon TrailBoss	<<locked>>	95%	21756	48%	**32	100%
Lovex D037.1	<<locked>>	65%	40306	90%	**06	95%
Lovex D037.2	<<locked>>	72%	39218	87%	**99	90%
Lovex S020	<<locked>>	64%	39827	89%	**42	100%
Maxam CSB 1	<<locked>>	74%	39320	87%	**99	100%
Maxam CSB 2	<<locked>>	69%	38972	87%	**86	100%
Maxam CSB 3	<<locked>>	71%	39407	88%	**76	100%
Maxam CSB 4	<<locked>>	69%	39871	89%	**67	100%
Maxam CSB 5	<<locked>>	65%	38972	87%	**04	100%
[Ramshot Enforcer]*	<<locked>>	82%	40263	90%	**19	88%
ReloadSwiss RS 14	<<locked>>	95%	20885	46%	**48	100%
ReloadSwiss RS 20	<<locked>>	71%	39320	87%	**68	100%
ReloadSwiss RS 24	<<locked>>	71%	39436	88%	**99	97%
Rottweil P 806	<<locked>>	72%	39523	88%	**73	100%
SNPE Vectan A0	<<locked>>	75%	40321	90%	**55	100%
SNPE Vectan BA 9	<<locked>>	68%	39392	88%	**12	100%
SNPE Vectan BA10	<<locked>>	66%	38667	86%	**75	100%
[SNPE Vectan BA6 1/2]*	<<locked>>	96%	26701	59%	**73	83%
SNPE Vectan BA7 1/2	<<locked>>	78%	40190	89%	**17	100%
SNPE Vectan BA9 1/2	<<locked>>	68%	39682	88%	**22	100%
Shooters World Heavy Pistol	<<locked>>	72%	39218	87%	**99	90%
Shooters World Major Pistol	<<locked>>	65%	40306	90%	**06	95%
Somchem MP200	<<locked>>	65%	39740	88%	**85	100%
Somchem MS200	<<locked>>	70%	40059	89%	**65	100%
Vihtavuori 3N37	<<locked>>	71%	40277	90%	**37	100%
Vihtavuori 3N38	<<locked>>	81%	39958	89%	**83	98%
Vihtavuori N105	<<locked>>	86%	40451	90%	**16	100%
[Vihtavuori N110]*	<<locked>>	96%	33518	75%	**31	84%
Vihtavuori N320	<<locked>>	64%	38276	85%	**40	100%
Vihtavuori N32C Tin Star	<<locked>>	91%	39929	89%	**81	100%
Vihtavuori N330	<<locked>>	66%	39494	88%	**19	100%
Vihtavuori N340	<<locked>>	70%	39871	89%	**62	100%
Vihtavuori N350	<<locked>>	74%	39943	89%	**21	100%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
ADI AP 100	<<locked>>	61%	20987	47%	**86	93%
ADI APS 350	<<locked>>	61%	32430	72%	**60	100%
ADI APS 450	<<locked>>	62%	31749	71%	**83	100%
ADI AS 30	<<locked>>	61%	32097	71%	**12	100%
ADI AS 50N	<<locked>>	61%	35157	78%	**07	100%
[Accurate 4100]*	<<locked>>	80%	34069	76%	**98	80%
Accurate No. 2	<<locked>>	61%	33982	76%	**86	100%
Accurate No. 7	<<locked>>	61%	34592	77%	**11	93%
[Accurate No. 9]*	<<locked>>	61%	26527	59%	**44	82%
Accurate Solo 1000	<<locked>>	61%	32416	72%	**52	100%
Accurate Solo 1250	<<locked>>	61%	30197	67%	**68	100%
[Accurate TCM]*	<<locked>>	61%	26774	60%	**50	84%
[Alliant 2400]*	<<locked>>	71%	28195	63%	**99	80%
[Alliant BLUE DOT]*	<<locked>>	61%	20711	46%	**99	82%
Alliant BULLSEYE	<<locked>>	61%	37898	84%	**58	100%
Alliant POWER PISTOL	<<locked>>	61%	30661	68%	**32	98%
Alliant UNIQUE	<<locked>>	61%	31285	70%	**50	100%
Baschieri & Pellagri 100	<<locked>>	61%	32648	73%	**62	100%
Hodgdon Clays	<<locked>>	61%	33156	74%	**83	100%
[Hodgdon LilGun]*	<<locked>>	84%	30414	68%	**01	81%
Hodgdon Universal	<<locked>>	61%	35085	78%	**57	100%
Hodgdon TrailBoss	<<locked>>	61%	11821	26%	**2	100%
Lovex D037.1	<<locked>>	61%	34592	77%	**11	93%
[Lovex D037.2]*	<<locked>>	61%	27035	60%	**57	82%
Lovex S020	<<locked>>	61%	36100	80%	**86	100%
Maxam CSB 1	<<locked>>	61%	28050	62%	**29	100%
Maxam CSB 2	<<locked>>	61%	32169	72%	**88	100%
Maxam CSB 3	<<locked>>	61%	30792	68%	**58	100%
Maxam CSB 4	<<locked>>	61%	32706	73%	**65	100%
Maxam CSB 5	<<locked>>	61%	35404	79%	**52	100%
[Ramshot Enforcer]*	<<locked>>	71%	28065	62%	**99	81%
ReloadSwiss RS 14	<<locked>>	62%	11560	26%	**6	100%
ReloadSwiss RS 20	<<locked>>	61%	29486	66%	**14	100%
ReloadSwiss RS 24	<<locked>>	61%	28326	63%	**83	92%
Rottweil P 806	<<locked>>	61%	27050	60%	**60	99%
SNPE Vectan A0	<<locked>>	61%	27963	62%	**65	100%
SNPE Vectan BA 9	<<locked>>	61%	32967	73%	**24	100%
SNPE Vectan BA10	<<locked>>	61%	35186	78%	**32	100%
[SNPE Vectan BA6 1/2]*	<<locked>>	93%	24889	55%	**17	81%
SNPE Vectan BA7 1/2	<<locked>>	61%	25251	56%	**58	99%
SNPE Vectan BA9 1/2	<<locked>>	61%	32924	73%	**24	100%
[Shooters World Heavy Pistol]*	<<locked>>	61%	27035	60%	**57	82%
Shooters World Major Pistol	<<locked>>	61%	34592	77%	**11	93%
Somchem MP200	<<locked>>	61%	34737	77%	**12	100%
Somchem MS200	<<locked>>	61%	31647	70%	**37	100%
Vihtavuori 3N37	<<locked>>	61%	29544	66%	**53	100%
[Vihtavuori 3N38]*	<<locked>>	61%	22321	50%	**39	89%
[Vihtavuori N105]*	<<locked>>	61%	18579	41%	**83	89%
[Vihtavuori N110]*	<<locked>>	91%	28718	64%	**29	80%
Vihtavuori N320	<<locked>>	61%	34592	77%	**94	100%
Vihtavuori N32C Tin Star	<<locked>>	61%	21596	48%	**06	100%
Vihtavuori N330	<<locked>>	61%	34026	76%	**37	100%
Vihtavuori N340	<<locked>>	61%	31488	70%	**30	100%
Vihtavuori N350	<<locked>>	61%	27717	62%	**21	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