Load data for 9 x 21 + .357 | 127gr | H&N KS HS

Recommended Powder(s): Accurate Solo 1250, Alliant BULLSEYE, Alliant UNIQUE, ReloadSwiss RS 20, Vihtavuori N340

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.357 \| 127gr \| H&N KS HS
Bullet Weight:	127gr \| 8.2g
Bullet Diameter:	0.357" \| 9.07mm
Bullet Length:	<<locked>>
Caliber:	9 x 21 load data
Case Length (l3):	0.830" \| 21.1mm
Cartridge Length (C.O.L.):	<<locked>>
Seated Depth:	<<locked>>
Shank Seated Depth:	<<locked>>
Case Capacity:	15.5 Grains of Water \| 1.01 cm³
Primer Size:	Small Pistol (SP)
Max. allowed Pressure:	34084 psi \| 2350 bar
LID:	LID_B7469_C1232
Last updated:	2025-01-01

Load data for 0 loads in caliber 9 x 21 with .357 | 127gr | H&N KS HS bullet and 0 powders such as Accurate Solo 1250, Alliant BULLSEYE, Alliant UNIQUE, 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.

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%	20291	60%	**60	83%
ADI AP 70N	<<locked>>	79%	29805	87%	**81	100%
ADI APS 350	<<locked>>	77%	29573	87%	**1	100%
ADI APS 450	<<locked>>	81%	30603	90%	**30	100%
ADI AS 30	<<locked>>	86%	29646	87%	**70	100%
ADI AS 50N	<<locked>>	84%	30182	89%	**25	100%
Accurate No. 2	<<locked>>	84%	30313	89%	**58	98%
Accurate No. 5	<<locked>>	71%	30211	89%	**30	92%
Accurate Solo 1000	<<locked>>	85%	30298	89%	**99	100%
Accurate Solo 1250 👍	<<locked>>	94%	30632	90%	**61	100%
Alliant BE-86	<<locked>>	91%	29820	88%	**55	100%
Alliant BULLSEYE	<<locked>>	82%	30342	89%	**11	100%
Alliant Herco	<<locked>>	96%	20943	61%	**79	98%
[Alliant POWER PISTOL]*	<<locked>>	94%	29892	88%	**63	89%
Alliant RED DOT	<<locked>>	89%	29631	87%	**96	100%
Alliant Sport Pistol	<<locked>>	76%	29994	88%	**04	100%
Alliant UNIQUE 👍	<<locked>>	95%	30110	88%	**24	100%
Baschieri & Pellagri 100	<<locked>>	88%	30284	89%	**09	100%
Baschieri & Pellagri 102 Pistol	<<locked>>	97%	21495	63%	**33	100%
Baschieri & Pellagri 103 Pistol	<<locked>>	84%	30560	90%	**45	100%
Hodgdon Clays	<<locked>>	77%	29834	88%	**7	100%
Hodgdon HP38	<<locked>>	65%	29878	88%	**35	100%
Hodgdon HS-6	<<locked>>	78%	30487	89%	**20	94%
Hodgdon Longshot	<<locked>>	74%	29834	88%	**17	96%
Hodgdon Universal	<<locked>>	87%	29805	87%	**81	100%
Hodgdon CFE Pistol	<<locked>>	88%	29515	87%	**65	100%
Lovex D036	<<locked>>	71%	30153	88%	**30	92%
Lovex S011	<<locked>>	74%	30618	90%	**29	100%
Lovex S020	<<locked>>	86%	29863	88%	**84	100%
Maxam CSB 1	<<locked>>	96%	29327	86%	**45	100%
Maxam CSB 2	<<locked>>	96%	29936	88%	**81	100%
Maxam CSB 3	<<locked>>	91%	30647	90%	**42	100%
Maxam CSB 4	<<locked>>	86%	30139	88%	**15	100%
Maxam CSB 5	<<locked>>	80%	29414	86%	**60	100%
Ramshot Silhouette	<<locked>>	78%	30371	89%	**14	99%
Ramshot True Blue	<<locked>>	73%	30574	90%	**20	96%
Ramshot Zip	<<locked>>	65%	29733	87%	**42	100%
ReloadSwiss RS 12	<<locked>>	84%	29892	88%	**68	100%
ReloadSwiss RS 20 👍	<<locked>>	97%	29457	86%	**24	100%
Rottweil P 801	<<locked>>	77%	30240	89%	**35	100%
[Rottweil P 806]*	<<locked>>	97%	18927	56%	**61	89%
SNPE Vectan A0	<<locked>>	96%	30081	88%	**65	100%
SNPE Vectan BA 9	<<locked>>	86%	30168	89%	**48	100%
SNPE Vectan BA10	<<locked>>	76%	30589	90%	**30	100%
SNPE Vectan BA7 1/2	<<locked>>	96%	25425	75%	**32	93%
SNPE Vectan BA9 1/2	<<locked>>	88%	29704	87%	**58	100%
SNPE Vectan SP 2	<<locked>>	93%	29921	88%	**02	91%
Shooters World Auto Pistol	<<locked>>	71%	30153	88%	**30	92%
Somchem MP200	<<locked>>	87%	30400	89%	**07	99%
Somchem MS200	<<locked>>	91%	30139	88%	**84	100%
[Somchem S221]*	<<locked>>	83%	30574	90%	**40	86%
Vihtavuori 3N37	<<locked>>	96%	29631	87%	**27	96%
Vihtavuori N310	<<locked>>	68%	29443	86%	**33	100%
Vihtavuori N320	<<locked>>	86%	30661	90%	**32	100%
Vihtavuori N32C Tin Star	<<locked>>	96%	19319	57%	**2	100%
Vihtavuori N330 👍	<<locked>>	90%	30661	90%	**94	100%
Vihtavuori N340	<<locked>>	93%	30197	89%	**88	100%
Vihtavuori N350	<<locked>>	97%	27601	81%	**91	95%
Winchester 231	<<locked>>	73%	29733	87%	**42	100%
Winchester AutoComp 👍	<<locked>>	95%	29892	88%	**75	100%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AP 100]*	<<locked>>	93%	18362	54%	**20	81%
ADI AP 70N	<<locked>>	61%	17332	51%	**8	100%
ADI APS 350	<<locked>>	60%	19377	57%	**6	100%
ADI APS 450	<<locked>>	62%	19102	56%	**9	100%
[ADI AS 30]²	<<locked>>	59%	15055	44%	**0	100%
ADI AS 50N	<<locked>>	62%	16795	49%	**8	100%
[Accurate No. 2]*	<<locked>>	60%	13764	40%	**3	88%
[Accurate No. 5]*	<<locked>>	61%	21219	62%	**83	86%
Accurate Solo 1000	<<locked>>	62%	16752	49%	**2	100%
Accurate Solo 1250	<<locked>>	60%	11966	35%	**3	96%
Alliant BE-86	<<locked>>	60%	11763	35%	**6	98%
Alliant BULLSEYE	<<locked>>	60%	16244	48%	**5	95%
[Alliant Herco]*	<<locked>>	69%	10443	31%	**7	87%
[Alliant POWER PISTOL]*	<<locked>>	78%	19058	56%	**66	80%
Alliant RED DOT	<<locked>>	62%	14910	44%	**6	100%
Alliant Sport Pistol	<<locked>>	61%	19261	57%	**27	96%
Alliant UNIQUE	<<locked>>	62%	11879	35%	**9	90%
Baschieri & Pellagri 100	<<locked>>	60%	13967	41%	**3	100%
Baschieri & Pellagri 102 Pistol	<<locked>>	72%	11095	33%	**3	100%
Baschieri & Pellagri 103 Pistol	<<locked>>	60%	14069	41%	**2	100%
Hodgdon Clays	<<locked>>	60%	19479	57%	**6	100%
Hodgdon HP38	<<locked>>	60%	25875	76%	**89	100%
[Hodgdon HS-6]*	<<locked>>	60%	16491	48%	**1	84%
[Hodgdon Longshot]*	<<locked>>	61%	18985	56%	**33	89%
Hodgdon Universal	<<locked>>	62%	14721	43%	**8	99%
Hodgdon CFE Pistol	<<locked>>	60%	12908	38%	**6	96%
[Lovex D036]*	<<locked>>	61%	21190	62%	**79	86%
Lovex S011	<<locked>>	61%	20378	60%	**8	100%
Lovex S020	<<locked>>	62%	14185	42%	**9	95%
Maxam CSB 1	<<locked>>	61%	11414	33%	**3	95%
Maxam CSB 2	<<locked>>	62%	11052	32%	**3	99%
Maxam CSB 3	<<locked>>	60%	13097	38%	**6	99%
Maxam CSB 4	<<locked>>	61%	15098	44%	**9	100%
Maxam CSB 5	<<locked>>	60%	16897	50%	**6	100%
Ramshot Silhouette	<<locked>>	60%	16940	50%	**8	93%
Ramshot True Blue	<<locked>>	60%	19464	57%	**40	90%
Ramshot Zip	<<locked>>	60%	24656	72%	**76	100%
ReloadSwiss RS 12	<<locked>>	62%	15345	45%	**8	100%
ReloadSwiss RS 20	<<locked>>	62%	10747	32%	**6	90%
Rottweil P 801	<<locked>>	62%	18797	55%	**4	100%
[Rottweil P 806]*	<<locked>>	86%	12879	38%	**04	80%
[SNPE Vectan A0]*	<<locked>>	62%	12285	36%	**3	89%
SNPE Vectan BA 9	<<locked>>	60%	14359	42%	**3	96%
SNPE Vectan BA10	<<locked>>	61%	20856	61%	**9	100%
[SNPE Vectan BA7 1/2]*	<<locked>>	70%	12531	37%	**3	80%
SNPE Vectan BA9 1/2	<<locked>>	61%	14069	41%	**6	97%
[SNPE Vectan SP 2]*	<<locked>>	74%	16143	47%	**47	80%
[Shooters World Auto Pistol]*	<<locked>>	61%	21190	62%	**79	86%
Somchem MP200	<<locked>>	61%	14272	42%	**5	91%
Somchem MS200	<<locked>>	61%	12995	38%	**3	92%
[Somchem S221]*	<<locked>>	74%	22872	67%	**22	81%
[Vihtavuori 3N37]*	<<locked>>	65%	11676	34%	**3	81%
Vihtavuori N310	<<locked>>	62%	24294	71%	**4	100%
Vihtavuori N320	<<locked>>	61%	14823	43%	**9	100%
Vihtavuori N32C Tin Star	<<locked>>	78%	12401	36%	**3	100%
Vihtavuori N330	<<locked>>	61%	12357	36%	**9	98%
[Vihtavuori N340]*	<<locked>>	60%	11502	34%	**0	89%
[Vihtavuori N350]*	<<locked>>	67%	11385	33%	**6	80%
Winchester 231	<<locked>>	62%	21176	62%	**24	100%
Winchester AutoComp	<<locked>>	61%	11792	35%	**0	95%

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