Load data for 9 x 21 + .357 | 158gr | Speer JHP

Recommended Powder(s): Alliant BULLSEYE, Alliant UNIQUE, Ramshot Silhouette, ReloadSwiss RS 20, Vihtavuori N340

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.357 \| 158gr \| Speer JHP
Manufacturer SKU:	4211
Bullet Weight:	158gr \| 10.2g
Bullet Diameter:	0.357" \| 9.07mm
Bullet Length:	0.640" \| 16.3mm
Caliber:	9 x 21 load data
Case Length (l3):	0.830" \| 21.1mm
Cartridge Length (C.O.L.):	1.154" \| 29.3mm
Seated Depth:	0.316" \| 8.0mm
Shank Seated Depth:	0.316" \| 8.0mm
Case Capacity:	15.5 Grains of Water \| 1.01 cm³
Primer Size:	Small Pistol (SP)
Max. allowed Pressure:	34084 psi \| 2350 bar
LID:	LID_B6223_C1232
Last updated:	2025-01-01

Load data for 104 loads in caliber 9 x 21 with .357 | 158gr | Speer JHP bullet and 52 powders such as Alliant BULLSEYE, Alliant UNIQUE, Ramshot Silhouette, ReloadSwiss RS 20, 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.

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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%	21857	64%	**2	86%
ADI AP 70N	<<locked>>	75%	29225	86%	**8	100%
ADI APS 350	<<locked>>	75%	28732	84%	**4	100%
ADI APS 450	<<locked>>	77%	28674	84%	**3	100%
ADI AS 30	<<locked>>	82%	29066	85%	**9	100%
ADI AS 50N	<<locked>>	80%	29892	88%	**2	100%
Accurate No. 2	<<locked>>	81%	28442	83%	**5	99%
Accurate No. 5	<<locked>>	69%	29863	88%	**24	93%
Accurate Solo 1000	<<locked>>	80%	28761	84%	**6	100%
Accurate Solo 1250	<<locked>>	90%	29138	85%	**1	100%
Alliant BULLSEYE 👍	<<locked>>	77%	28471	84%	**8	100%
Alliant POWER PISTOL	<<locked>>	93%	30037	88%	**66	90%
Alliant UNIQUE 👍	<<locked>>	93%	30501	89%	**27	100%
Baschieri & Pellagri 100	<<locked>>	86%	30298	89%	**9	100%
Hodgdon Clays	<<locked>>	75%	29124	85%	**7	100%
Hodgdon HP38	<<locked>>	64%	30632	90%	**1	100%
Hodgdon HS-6	<<locked>>	74%	28848	85%	**07	95%
Hodgdon Longshot	<<locked>>	71%	28732	84%	**04	96%
Hodgdon Universal	<<locked>>	83%	29225	86%	**8	100%
Lovex D036	<<locked>>	69%	29805	87%	**27	93%
Lovex S011	<<locked>>	72%	29950	88%	**8	100%
Lovex S020	<<locked>>	83%	29733	87%	**1	100%
Maxam CSB 1	<<locked>>	94%	29733	87%	**1	100%
Maxam CSB 2	<<locked>>	92%	28601	84%	**5	100%
Maxam CSB 3	<<locked>>	85%	27992	82%	**9	100%
Maxam CSB 4	<<locked>>	83%	29037	85%	**2	100%
Maxam CSB 5	<<locked>>	78%	29443	86%	**9	100%
Ramshot Silhouette 👍	<<locked>>	74%	28601	84%	**7	99%
Ramshot True Blue	<<locked>>	70%	29472	86%	**07	96%
Ramshot Zip	<<locked>>	64%	29457	86%	**5	100%
ReloadSwiss RS 12	<<locked>>	80%	29501	87%	**8	100%
ReloadSwiss RS 20 👍	<<locked>>	96%	30458	89%	**30	100%
[ReloadSwiss RS 24]*	<<locked>>	97%	30647	90%	**56	83%
Rottweil P 801	<<locked>>	73%	29399	86%	**8	100%
Rottweil P 806	<<locked>>	96%	20247	59%	**01	91%
SNPE Vectan A0	<<locked>>	94%	30197	89%	**1	100%
SNPE Vectan BA 9	<<locked>>	84%	29805	87%	**8	100%
SNPE Vectan BA10	<<locked>>	72%	28660	84%	**3	100%
SNPE Vectan BA7 1/2	<<locked>>	94%	25788	76%	**1	94%
SNPE Vectan BA9 1/2	<<locked>>	86%	29805	87%	**5	100%
Shooters World Auto Pistol	<<locked>>	69%	29805	87%	**27	93%
Somchem MP200	<<locked>>	85%	30371	89%	**07	100%
Somchem MS200	<<locked>>	89%	30066	88%	**4	100%
[Somchem S221]*	<<locked>>	79%	28732	84%	**24	86%
Vihtavuori 3N37	<<locked>>	95%	30589	90%	**40	97%
Vihtavuori N310	<<locked>>	65%	28239	83%	**3	100%
Vihtavuori N320	<<locked>>	84%	30197	89%	**5	100%
Vihtavuori N32C Tin Star	<<locked>>	94%	20392	60%	**4	100%
Vihtavuori N330	<<locked>>	85%	28834	85%	**4	100%
Vihtavuori N340 👍	<<locked>>	91%	30342	89%	**4	100%
Vihtavuori N350	<<locked>>	95%	27876	82%	**04	97%
Winchester 231	<<locked>>	71%	29457	86%	**5	100%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AP 100]*	<<locked>>	87%	17347	51%	**3	81%
ADI AP 70N	<<locked>>	60%	18637	55%	**3	100%
ADI APS 350	<<locked>>	61%	20610	60%	**9	100%
ADI APS 450	<<locked>>	60%	18855	55%	**5	100%
ADI AS 30	<<locked>>	60%	17216	51%	**5	100%
ADI AS 50N	<<locked>>	61%	18246	54%	**4	100%
Accurate No. 2	<<locked>>	61%	15229	45%	**5	92%
[Accurate No. 5]*	<<locked>>	60%	22002	65%	**5	88%
Accurate Solo 1000	<<locked>>	60%	17202	50%	**1	100%
Accurate Solo 1250	<<locked>>	60%	13111	38%	**9	98%
Alliant BULLSEYE	<<locked>>	61%	17796	52%	**0	97%
[Alliant POWER PISTOL]*	<<locked>>	73%	17608	52%	**9	81%
Alliant UNIQUE	<<locked>>	62%	13967	41%	**4	94%
Baschieri & Pellagri 100	<<locked>>	60%	15069	44%	**2	100%
Hodgdon Clays	<<locked>>	61%	20639	61%	**8	100%
Hodgdon HP38	<<locked>>	61%	28152	83%	**5	100%
[Hodgdon HS-6]*	<<locked>>	61%	18304	54%	**0	88%
Hodgdon Longshot	<<locked>>	62%	21147	62%	**2	92%
Hodgdon Universal	<<locked>>	62%	16955	50%	**4	100%
[Lovex D036]*	<<locked>>	60%	21959	64%	**5	88%
Lovex S011	<<locked>>	62%	22423	66%	**6	100%
Lovex S020	<<locked>>	61%	15156	44%	**1	97%
Maxam CSB 1	<<locked>>	60%	12560	37%	**2	97%
Maxam CSB 2	<<locked>>	62%	12879	38%	**1	100%
Maxam CSB 3	<<locked>>	62%	15505	46%	**1	100%
[Maxam CSB 4]²	<<locked>>	59%	15809	46%	**5	100%
Maxam CSB 5	<<locked>>	62%	19334	57%	**8	100%
Ramshot Silhouette	<<locked>>	62%	19189	56%	**0	96%
Ramshot True Blue	<<locked>>	61%	21611	63%	**2	93%
Ramshot Zip	<<locked>>	61%	27050	79%	**9	100%
ReloadSwiss RS 12	<<locked>>	60%	16215	48%	**1	100%
ReloadSwiss RS 20	<<locked>>	60%	11313	33%	**9	93%
[ReloadSwiss RS 24]*	<<locked>>	92%	26716	78%	**07	81%
Rottweil P 801	<<locked>>	60%	19986	59%	**3	100%
[Rottweil P 806]*	<<locked>>	78%	11864	35%	**4	81%
SNPE Vectan A0	<<locked>>	63%	13764	40%	**5	93%
SNPE Vectan BA 9	<<locked>>	61%	16215	48%	**8	98%
SNPE Vectan BA10	<<locked>>	60%	21074	62%	**1	100%
[SNPE Vectan BA7 1/2]*	<<locked>>	64%	11734	34%	**6	80%
SNPE Vectan BA9 1/2	<<locked>>	62%	15925	47%	**4	99%
[Shooters World Auto Pistol]*	<<locked>>	60%	21959	64%	**5	88%
Somchem MP200	<<locked>>	61%	15563	46%	**7	94%
Somchem MS200	<<locked>>	61%	14823	43%	**8	95%
[Somchem S221]*	<<locked>>	71%	21959	64%	**2	81%
[Vihtavuori 3N37]*	<<locked>>	61%	11342	33%	**5	82%
Vihtavuori N310	<<locked>>	61%	25382	74%	**4	100%
Vihtavuori N320	<<locked>>	61%	15911	47%	**8	100%
Vihtavuori N32C Tin Star	<<locked>>	72%	12241	36%	**9	100%
Vihtavuori N330	<<locked>>	62%	14228	42%	**4	100%
Vihtavuori N340	<<locked>>	61%	13213	39%	**5	93%
[Vihtavuori N350]*	<<locked>>	61%	10631	31%	**2	81%
Winchester 231	<<locked>>	62%	22582	66%	**6	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