Load data for 9 x 21 + .357 | 125gr | Sierra JHC SportsMaster

Recommended Powder(s): Alliant BULLSEYE, Alliant UNIQUE, Ramshot Silhouette, ReloadSwiss RS 20, Somchem MP200

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:	9 x 21 load data
Case Length (l3):	0.830" \| 21.1mm
Cartridge Length (C.O.L.):	1.154" \| 29.3mm
Seated Depth:	0.210" \| 5.3mm
Shank Seated Depth:	0.210" \| 5.3mm
Case Capacity:	15.5 Grains of Water \| 1.01 cm³
Primer Size:	Small Pistol (SP)
Max. allowed Pressure:	34084 psi \| 2350 bar
LID:	LID_B5944_C1232
Last updated:	2025-01-01

Load data for 102 loads in caliber 9 x 21 with .357 | 125gr | Sierra JHC SportsMaster bullet and 51 powders such as Alliant BULLSEYE, Alliant UNIQUE, Ramshot Silhouette, ReloadSwiss RS 20, Somchem MP200. 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%	24265	71%	**42	86%
ADI AP 70N	<<locked>>	72%	30632	90%	**88	100%
ADI APS 350	<<locked>>	72%	29515	87%	**4	100%
ADI APS 450	<<locked>>	76%	30124	88%	**37	100%
ADI AS 30	<<locked>>	76%	28703	84%	**66	100%
ADI AS 50N	<<locked>>	76%	30516	90%	**25	100%
Accurate No. 2	<<locked>>	79%	30487	89%	**84	99%
Accurate No. 5	<<locked>>	65%	29776	87%	**43	92%
Accurate Solo 1000	<<locked>>	77%	29385	86%	**99	100%
Accurate Solo 1250	<<locked>>	85%	29617	87%	**65	100%
Alliant BULLSEYE 👍	<<locked>>	74%	29298	86%	**11	100%
[Alliant POWER PISTOL]*	<<locked>>	87%	29704	87%	**80	89%
Alliant UNIQUE 👍	<<locked>>	87%	30269	89%	**34	100%
Baschieri & Pellagri 100	<<locked>>	80%	29675	87%	**09	100%
Hodgdon Clays	<<locked>>	72%	29718	87%	**07	100%
Hodgdon HS-6	<<locked>>	71%	29747	87%	**34	94%
Hodgdon Longshot	<<locked>>	69%	30589	90%	**43	96%
Hodgdon Universal	<<locked>>	79%	30632	90%	**88	100%
Hodgdon TrailBoss	<<locked>>	93%	11864	35%	**1	100%
Lovex D036	<<locked>>	65%	29718	87%	**40	92%
Lovex S011	<<locked>>	68%	29254	86%	**25	100%
Lovex S020	<<locked>>	78%	29573	87%	**88	100%
Maxam CSB 1	<<locked>>	89%	29675	87%	**58	100%
Maxam CSB 2	<<locked>>	86%	29849	88%	**81	100%
Maxam CSB 3	<<locked>>	83%	29834	88%	**38	100%
Maxam CSB 4	<<locked>>	79%	29428	86%	**15	100%
Maxam CSB 5	<<locked>>	73%	29051	85%	**63	100%
Ramshot Silhouette 👍	<<locked>>	72%	30530	90%	**30	99%
Ramshot True Blue	<<locked>>	66%	29457	86%	**17	96%
ReloadSwiss RS 12	<<locked>>	74%	29167	86%	**55	100%
ReloadSwiss RS 14	<<locked>>	96%	11647	34%	**7	100%
ReloadSwiss RS 20 👍	<<locked>>	91%	30182	89%	**47	100%
[ReloadSwiss RS 24]*	<<locked>>	92%	30472	89%	**73	82%
Rottweil P 801	<<locked>>	68%	29544	87%	**25	100%
Rottweil P 806	<<locked>>	97%	26774	79%	**02	94%
SNPE Vectan A0	<<locked>>	87%	28805	84%	**68	100%
SNPE Vectan BA 9	<<locked>>	78%	29153	86%	**45	100%
SNPE Vectan BA10	<<locked>>	70%	30095	88%	**37	100%
SNPE Vectan BA7 1/2	<<locked>>	94%	29428	86%	**07	95%
SNPE Vectan BA9 1/2	<<locked>>	81%	30356	89%	**75	100%
Shooters World Auto Pistol	<<locked>>	65%	29718	87%	**40	92%
Somchem MP200 👍	<<locked>>	78%	29051	85%	**98	99%
Somchem MS200	<<locked>>	83%	29617	87%	**91	100%
[Somchem S221]*	<<locked>>	76%	30298	89%	**50	86%
Vihtavuori 3N37	<<locked>>	89%	30429	89%	**53	97%
Vihtavuori N320	<<locked>>	78%	30240	89%	**38	100%
Vihtavuori N32C Tin Star	<<locked>>	96%	25251	74%	**07	100%
Vihtavuori N330	<<locked>>	81%	29182	86%	**84	100%
Vihtavuori N340	<<locked>>	84%	29428	86%	**91	100%
Vihtavuori N350	<<locked>>	93%	29907	88%	**40	97%
Winchester 231	<<locked>>	67%	29892	88%	**55	100%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AP 100]*	<<locked>>	81%	17477	51%	**01	80%
ADI AP 70N	<<locked>>	60%	22336	66%	**63	100%
ADI APS 350	<<locked>>	62%	23438	69%	**5	100%
ADI APS 450	<<locked>>	60%	20740	61%	**2	100%
ADI AS 30	<<locked>>	60%	19783	58%	**2	100%
ADI AS 50N	<<locked>>	62%	21553	63%	**01	100%
Accurate No. 2	<<locked>>	62%	18507	54%	**1	94%
Accurate No. 5	<<locked>>	60%	25541	75%	**68	90%
Accurate Solo 1000	<<locked>>	62%	20407	60%	**1	100%
Accurate Solo 1250	<<locked>>	60%	16056	47%	**8	99%
Alliant BULLSEYE	<<locked>>	62%	21205	62%	**70	98%
[Alliant POWER PISTOL]*	<<locked>>	68%	18289	54%	**50	80%
Alliant UNIQUE	<<locked>>	61%	16476	48%	**1	95%
Baschieri & Pellagri 100	<<locked>>	60%	18072	53%	**5	100%
Hodgdon Clays	<<locked>>	62%	23511	69%	**8	100%
Hodgdon HS-6	<<locked>>	61%	22133	65%	**96	90%
Hodgdon Longshot	<<locked>>	60%	23250	68%	**25	93%
Hodgdon Universal	<<locked>>	61%	19609	58%	**14	100%
Hodgdon TrailBoss	<<locked>>	73%	8891	26%	**2	100%
Lovex D036	<<locked>>	60%	25483	75%	**68	90%
Lovex S011	<<locked>>	61%	23757	70%	**47	100%
Lovex S020	<<locked>>	61%	18536	54%	**04	98%
Maxam CSB 1	<<locked>>	61%	15316	45%	**9	99%
Maxam CSB 2	<<locked>>	62%	16360	48%	**1	100%
Maxam CSB 3	<<locked>>	60%	17100	50%	**8	100%
Maxam CSB 4	<<locked>>	61%	19189	56%	**1	100%
Maxam CSB 5	<<locked>>	60%	21335	63%	**8	100%
Ramshot Silhouette	<<locked>>	60%	21451	63%	**79	96%
Ramshot True Blue	<<locked>>	61%	25106	74%	**48	94%
ReloadSwiss RS 12	<<locked>>	61%	21190	62%	**37	100%
ReloadSwiss RS 14	<<locked>>	72%	8311	24%	**3	97%
ReloadSwiss RS 20	<<locked>>	61%	14301	42%	**8	95%
[ReloadSwiss RS 24]*	<<locked>>	88%	27920	82%	**34	81%
Rottweil P 801	<<locked>>	61%	24381	72%	**53	100%
[Rottweil P 806]*	<<locked>>	72%	13402	39%	**4	81%
SNPE Vectan A0	<<locked>>	62%	15766	46%	**5	94%
SNPE Vectan BA 9	<<locked>>	62%	18739	55%	**8	99%
SNPE Vectan BA10	<<locked>>	62%	24294	71%	**5	100%
[SNPE Vectan BA7 1/2]*	<<locked>>	60%	12865	38%	**6	81%
SNPE Vectan BA9 1/2	<<locked>>	61%	18014	53%	**4	99%
Shooters World Auto Pistol	<<locked>>	60%	25483	75%	**68	90%
Somchem MP200	<<locked>>	60%	18043	53%	**01	95%
Somchem MS200	<<locked>>	60%	16911	50%	**5	96%
[Somchem S221]*	<<locked>>	65%	21814	64%	**96	80%
[Vihtavuori 3N37]*	<<locked>>	62%	14533	43%	**5	85%
Vihtavuori N320	<<locked>>	62%	19522	57%	**4	100%
Vihtavuori N32C Tin Star	<<locked>>	63%	12589	37%	**1	100%
Vihtavuori N330	<<locked>>	60%	16520	48%	**4	100%
Vihtavuori N340	<<locked>>	62%	16505	48%	**8	95%
[Vihtavuori N350]*	<<locked>>	61%	13140	39%	**2	83%
Winchester 231	<<locked>>	61%	24976	73%	**86	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