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

Recommended Powder(s):

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.357 \| 127gr \| H&N KS HP 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_B7468_C1232
Last updated:	2026-01-21

Load data for 108 loads in caliber 9 x 21 with .357 | 127gr | H&N KS HP HS bullet and 54 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".

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 70N	<<locked>>	80%	29675	87%	**65	100%
ADI APS 350	<<locked>>	79%	30139	88%	**8	100%
ADI APS 450	<<locked>>	82%	30124	88%	**10	100%
ADI AS 30	<<locked>>	88%	30197	89%	**66	100%
ADI AS 50N	<<locked>>	84%	29689	87%	**06	100%
Accurate No. 2	<<locked>>	86%	30429	89%	**45	98%
Accurate No. 5	<<locked>>	71%	29892	88%	**07	91%
Accurate Solo 1000	<<locked>>	85%	30066	88%	**86	100%
Accurate Solo 1250	<<locked>>	95%	30400	89%	**48	100%
Alliant BULLSEYE	<<locked>>	83%	30342	89%	**98	100%
[Alliant POWER PISTOL]*	<<locked>>	97%	30371	89%	**60	89%
Alliant Sport Pistol 👍	<<locked>>	77%	29921	88%	**91	100%
Alliant UNIQUE 👍	<<locked>>	97%	29863	88%	**11	100%
Baschieri & Pellagri 100	<<locked>>	89%	30008	88%	**93	100%
Baschieri & Pellagri 102 Pistol	<<locked>>	97%	20494	60%	**07	100%
Baschieri & Pellagri 103 Pistol	<<locked>>	85%	30139	88%	**29	100%
Hodgdon Clays	<<locked>>	79%	30327	89%	**1	100%
Hodgdon HP38	<<locked>>	66%	29805	87%	**22	100%
Hodgdon HS-6	<<locked>>	78%	30139	88%	**04	93%
Hodgdon Longshot	<<locked>>	75%	30298	89%	**07	95%
Hodgdon Universal	<<locked>>	88%	29675	87%	**65	100%
Hodgdon CFE Pistol 👍	<<locked>>	90%	29733	87%	**55	100%
Lovex D036	<<locked>>	72%	30647	90%	**17	91%
Lovex S011	<<locked>>	75%	30356	89%	**12	100%
Lovex S020	<<locked>>	87%	29950	88%	**71	100%
Maxam CSB 1	<<locked>>	96%	28137	83%	**19	100%
Maxam CSB 2	<<locked>>	96%	28587	84%	**55	100%
Maxam CSB 3	<<locked>>	92%	30168	89%	**25	100%
Maxam CSB 4	<<locked>>	87%	29617	87%	**99	100%
Maxam CSB 5	<<locked>>	82%	30081	88%	**56	100%
Ramshot Silhouette	<<locked>>	79%	30603	90%	**07	99%
Ramshot True Blue	<<locked>>	74%	30066	88%	**98	95%
Ramshot Zip	<<locked>>	67%	30647	90%	**42	100%
ReloadSwiss RS 12	<<locked>>	86%	30560	90%	**65	100%
ReloadSwiss RS 20 👍	<<locked>>	96%	27398	80%	**84	100%
Rottweil P 801	<<locked>>	78%	29965	88%	**22	100%
[Rottweil P 806]*	<<locked>>	97%	17666	52%	**15	86%
SNPE Vectan A0	<<locked>>	96%	29211	86%	**42	99%
SNPE Vectan BA 9	<<locked>>	87%	30182	89%	**35	100%
SNPE Vectan BA10	<<locked>>	76%	30095	88%	**10	100%
SNPE Vectan BA7 1/2	<<locked>>	97%	25005	73%	**12	92%
SNPE Vectan BA9 1/2 👍	<<locked>>	91%	30589	90%	**58	100%
SNPE Vectan SP 2	<<locked>>	95%	30632	90%	**89	91%
Shooters World Auto Pistol	<<locked>>	72%	30647	90%	**17	91%
Somchem MP200	<<locked>>	87%	29573	87%	**84	99%
Somchem MS200	<<locked>>	93%	30037	88%	**71	100%
[Somchem S221]*	<<locked>>	83%	29718	87%	**14	85%
Vihtavuori 3N37	<<locked>>	97%	29138	85%	**11	95%
Vihtavuori N310	<<locked>>	70%	29878	88%	**27	100%
Vihtavuori N320	<<locked>>	87%	30110	88%	**22	100%
Vihtavuori N330	<<locked>>	91%	30574	90%	**78	100%
Vihtavuori N340	<<locked>>	94%	30400	89%	**78	100%
Vihtavuori N350	<<locked>>	96%	25947	76%	**55	94%
Winchester 231	<<locked>>	75%	30647	90%	**42	100%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
ADI AP 70N	<<locked>>	61%	16868	50%	**8	99%
ADI APS 350	<<locked>>	71%	24961	73%	**9	100%
ADI APS 450	<<locked>>	71%	23279	68%	**2	100%
ADI AS 30	<<locked>>	70%	19348	57%	**5	100%
ADI AS 50N	<<locked>>	63%	16897	50%	**9	100%
Accurate No. 2	<<locked>>	67%	17027	50%	**5	91%
[Accurate No. 5]*	<<locked>>	60%	19856	58%	**40	84%
Accurate Solo 1000	<<locked>>	67%	18637	55%	**8	100%
Accurate Solo 1250	<<locked>>	71%	16143	47%	**5	99%
Alliant BULLSEYE	<<locked>>	60%	15708	46%	**2	94%
[Alliant POWER PISTOL]*	<<locked>>	81%	19740	58%	**73	81%
Alliant Sport Pistol	<<locked>>	61%	18695	55%	**07	96%
Alliant UNIQUE	<<locked>>	69%	14373	42%	**2	92%
Baschieri & Pellagri 100	<<locked>>	70%	17999	53%	**2	100%
Baschieri & Pellagri 102 Pistol	<<locked>>	85%	15345	45%	**2	100%
Baschieri & Pellagri 103 Pistol	<<locked>>	64%	15505	45%	**8	100%
Hodgdon Clays	<<locked>>	69%	24076	71%	**2	100%
Hodgdon HP38	<<locked>>	61%	25512	75%	**73	100%
[Hodgdon HS-6]*	<<locked>>	61%	16534	49%	**5	83%
[Hodgdon Longshot]*	<<locked>>	60%	17608	52%	**4	87%
Hodgdon Universal	<<locked>>	63%	14678	43%	**9	99%
Hodgdon CFE Pistol	<<locked>>	67%	15476	45%	**8	98%
[Lovex D036]*	<<locked>>	60%	19827	58%	**37	84%
Lovex S011	<<locked>>	61%	19856	58%	**8	100%
Lovex S020	<<locked>>	65%	15055	44%	**2	95%
Maxam CSB 1	<<locked>>	73%	15940	47%	**5	99%
Maxam CSB 2	<<locked>>	70%	13503	40%	**2	100%
Maxam CSB 3	<<locked>>	69%	16708	49%	**8	100%
Maxam CSB 4	<<locked>>	67%	17535	51%	**8	100%
Maxam CSB 5	<<locked>>	66%	19783	58%	**2	100%
Ramshot Silhouette	<<locked>>	61%	16737	49%	**1	92%
[Ramshot True Blue]*	<<locked>>	61%	19435	57%	**24	89%
Ramshot Zip	<<locked>>	61%	24439	72%	**63	100%
ReloadSwiss RS 12	<<locked>>	62%	14504	43%	**5	100%
ReloadSwiss RS 20	<<locked>>	71%	13561	40%	**2	94%
Rottweil P 801	<<locked>>	62%	18101	53%	**8	100%
[Rottweil P 806]*	<<locked>>	88%	13256	39%	**04	80%
SNPE Vectan A0	<<locked>>	72%	16128	47%	**2	93%
SNPE Vectan BA 9	<<locked>>	65%	16534	48%	**2	97%
SNPE Vectan BA10	<<locked>>	66%	23264	68%	**2	100%
[SNPE Vectan BA7 1/2]*	<<locked>>	79%	15461	45%	**8	84%
SNPE Vectan BA9 1/2	<<locked>>	66%	15548	46%	**2	98%
[SNPE Vectan SP 2]*	<<locked>>	77%	16824	49%	**47	80%
[Shooters World Auto Pistol]*	<<locked>>	60%	19827	58%	**37	84%
Somchem MP200	<<locked>>	64%	15098	44%	**8	91%
Somchem MS200	<<locked>>	68%	15737	46%	**2	94%
[Somchem S221]*	<<locked>>	76%	23221	68%	**15	80%
[Vihtavuori 3N37]*	<<locked>>	72%	13909	41%	**5	83%
Vihtavuori N310	<<locked>>	62%	23351	69%	**8	100%
Vihtavuori N320	<<locked>>	66%	16404	48%	**2	100%
Vihtavuori N330	<<locked>>	65%	13677	40%	**9	99%
Vihtavuori N340	<<locked>>	70%	15156	44%	**8	93%
[Vihtavuori N350]*	<<locked>>	75%	14156	42%	**5	84%
Winchester 231	<<locked>>	60%	19218	56%	**1	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