Load data for 9 x 21 + .356 | 125gr | H&N RN KB

Recommended Powder(s):

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.356 \| 125gr \| H&N RN KB
Bullet Weight:	125gr \| 8.1g
Bullet Diameter:	0.356" \| 9.04mm
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_B7453_C1232
Last updated:	2026-02-02

Load data for 114 loads in caliber 9 x 21 with .356 | 125gr | H&N RN KB bullet and 57 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>>	81%	30443	89%	**88	100%
ADI APS 350	<<locked>>	79%	29979	88%	**4	100%
ADI APS 450	<<locked>>	82%	29936	88%	**20	100%
ADI AS 30	<<locked>>	88%	29950	88%	**76	100%
ADI AS 50N	<<locked>>	86%	30589	90%	**25	100%
Accurate No. 2	<<locked>>	86%	30008	88%	**52	98%
Accurate No. 5	<<locked>>	72%	30429	89%	**24	91%
Accurate Solo 1000	<<locked>>	85%	29704	87%	**89	100%
Accurate Solo 1250	<<locked>>	95%	30110	88%	**55	100%
Alliant BE-86	<<locked>>	93%	29878	88%	**52	100%
Alliant BULLSEYE	<<locked>>	83%	30081	88%	**04	100%
Alliant Herco	<<locked>>	97%	19986	59%	**60	97%
[Alliant POWER PISTOL]*	<<locked>>	97%	30052	88%	**60	88%
Alliant Sport Pistol	<<locked>>	77%	29675	87%	**98	100%
Alliant UNIQUE	<<locked>>	96%	28587	84%	**04	99%
Baschieri & Pellagri 100	<<locked>>	89%	29791	87%	**02	100%
Baschieri & Pellagri 102 Pistol	<<locked>>	97%	20291	60%	**14	100%
Baschieri & Pellagri 103 Pistol	<<locked>>	85%	29849	88%	**35	100%
Hodgdon Clays	<<locked>>	79%	30168	89%	**01	100%
Hodgdon HP38	<<locked>>	67%	30589	90%	**45	100%
Hodgdon HS-6	<<locked>>	79%	29863	88%	**04	93%
Hodgdon Longshot	<<locked>>	75%	29994	88%	**14	95%
Hodgdon Universal 👍	<<locked>>	90%	30443	89%	**88	100%
Hodgdon CFE Pistol 👍	<<locked>>	92%	30545	90%	**75	100%
Lovex D036	<<locked>>	72%	30371	89%	**24	91%
Lovex S011	<<locked>>	75%	30139	88%	**22	100%
Lovex S020	<<locked>>	87%	29675	87%	**81	100%
Maxam CSB 1	<<locked>>	96%	27891	82%	**22	100%
Maxam CSB 2 👍	<<locked>>	97%	28224	83%	**65	100%
Maxam CSB 3	<<locked>>	92%	29921	88%	**32	100%
Maxam CSB 4	<<locked>>	89%	30458	89%	**19	100%
Maxam CSB 5	<<locked>>	82%	29834	88%	**66	100%
Ramshot Silhouette	<<locked>>	80%	30284	89%	**07	99%
Ramshot True Blue	<<locked>>	74%	29805	87%	**04	95%
Ramshot Zip	<<locked>>	67%	30371	89%	**48	100%
ReloadSwiss RS 12	<<locked>>	86%	30182	89%	**75	100%
ReloadSwiss RS 20	<<locked>>	96%	27093	80%	**91	100%
Rottweil P 801	<<locked>>	78%	29472	86%	**32	100%
[Rottweil P 806]*	<<locked>>	97%	17405	51%	**19	86%
SNPE Vectan A0	<<locked>>	96%	28964	85%	**48	99%
SNPE Vectan BA 9	<<locked>>	87%	29921	88%	**45	100%
SNPE Vectan BA10	<<locked>>	76%	29921	88%	**20	100%
SNPE Vectan BA7 1/2	<<locked>>	97%	24642	72%	**12	91%
SNPE Vectan BA9 1/2 👍	<<locked>>	91%	30342	89%	**68	100%
SNPE Vectan SP 2	<<locked>>	95%	30211	89%	**96	91%
Shooters World Auto Pistol	<<locked>>	72%	30371	89%	**24	91%
Somchem MP200	<<locked>>	89%	30414	89%	**07	99%
Somchem MS200	<<locked>>	93%	29791	87%	**81	100%
[Somchem S221]*	<<locked>>	84%	30429	89%	**34	85%
Vihtavuori 3N37	<<locked>>	97%	28805	85%	**17	95%
Vihtavuori N310	<<locked>>	70%	29602	87%	**33	100%
Vihtavuori N320	<<locked>>	87%	29660	87%	**25	100%
Vihtavuori N32C Tin Star	<<locked>>	97%	18666	55%	**5	100%
Vihtavuori N330 👍	<<locked>>	92%	30066	88%	**88	100%
Vihtavuori N340	<<locked>>	94%	30081	88%	**88	100%
Vihtavuori N350	<<locked>>	96%	25686	75%	**61	94%
Winchester 231	<<locked>>	75%	30371	89%	**48	100%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
ADI AP 70N	<<locked>>	61%	16694	49%	**1	99%
[ADI APS 350]²	<<locked>>	59%	18231	53%	**7	100%
ADI APS 450	<<locked>>	62%	18115	53%	**6	100%
ADI AS 30	<<locked>>	62%	15722	46%	**3	100%
ADI AS 50N	<<locked>>	62%	15998	47%	**9	100%
[Accurate No. 2]*	<<locked>>	60%	13198	39%	**3	87%
[Accurate No. 5]*	<<locked>>	61%	19667	58%	**43	83%
Accurate Solo 1000	<<locked>>	62%	15867	47%	**6	100%
Accurate Solo 1250	<<locked>>	60%	11269	33%	**3	95%
Alliant BE-86	<<locked>>	60%	11240	33%	**3	97%
Alliant BULLSEYE	<<locked>>	60%	15490	45%	**5	94%
[Alliant Herco]*	<<locked>>	71%	10472	31%	**7	87%
[Alliant POWER PISTOL]*	<<locked>>	82%	20291	60%	**93	81%
Alliant Sport Pistol	<<locked>>	62%	18536	54%	**14	95%
[Alliant UNIQUE]*	<<locked>>	62%	11298	33%	**0	88%
Baschieri & Pellagri 100	<<locked>>	60%	13184	39%	**6	99%
Baschieri & Pellagri 102 Pistol	<<locked>>	74%	11052	32%	**3	99%
Baschieri & Pellagri 103 Pistol	<<locked>>	61%	13634	40%	**6	100%
[Hodgdon Clays]²	<<locked>>	59%	18246	54%	**0	100%
Hodgdon HP38	<<locked>>	61%	25280	74%	**79	100%
[Hodgdon HS-6]*	<<locked>>	61%	16375	48%	**8	83%
[Hodgdon Longshot]*	<<locked>>	60%	17434	51%	**01	87%
Hodgdon Universal	<<locked>>	62%	13822	41%	**6	98%
Hodgdon CFE Pistol	<<locked>>	60%	12154	36%	**0	95%
[Lovex D036]*	<<locked>>	61%	19638	58%	**43	83%
Lovex S011	<<locked>>	61%	19711	58%	**4	100%
Lovex S020	<<locked>>	60%	12299	36%	**9	92%
Maxam CSB 1	<<locked>>	64%	11893	35%	**3	95%
Maxam CSB 2	<<locked>>	62%	10283	30%	**6	98%
Maxam CSB 3	<<locked>>	63%	13692	40%	**3	99%
Maxam CSB 4	<<locked>>	60%	14185	42%	**3	100%
[Maxam CSB 5]²	<<locked>>	59%	15867	47%	**9	100%
Ramshot Silhouette	<<locked>>	61%	16578	49%	**8	91%
[Ramshot True Blue]*	<<locked>>	62%	19247	56%	**30	88%
Ramshot Zip	<<locked>>	61%	24091	71%	**70	100%
ReloadSwiss RS 12	<<locked>>	62%	14301	42%	**2	100%
[ReloadSwiss RS 20]*	<<locked>>	62%	10240	30%	**7	88%
Rottweil P 801	<<locked>>	62%	17782	52%	**1	100%
[Rottweil P 806]*	<<locked>>	90%	13735	40%	**27	81%
[SNPE Vectan A0]*	<<locked>>	64%	12270	36%	**3	88%
SNPE Vectan BA 9	<<locked>>	60%	13880	41%	**9	95%
SNPE Vectan BA10	<<locked>>	61%	20015	59%	**6	100%
[SNPE Vectan BA7 1/2]*	<<locked>>	74%	13169	39%	**9	80%
SNPE Vectan BA9 1/2	<<locked>>	62%	13445	39%	**9	97%
[SNPE Vectan SP 2]*	<<locked>>	78%	17027	50%	**63	81%
[Shooters World Auto Pistol]*	<<locked>>	61%	19638	58%	**43	83%
[Somchem MP200]*	<<locked>>	62%	13663	40%	**9	89%
Somchem MS200	<<locked>>	61%	12444	36%	**3	90%
[Somchem S221]*	<<locked>>	77%	23641	69%	**29	80%
[Vihtavuori 3N37]*	<<locked>>	69%	12285	36%	**9	81%
Vihtavuori N310	<<locked>>	62%	23163	68%	**1	100%
Vihtavuori N320	<<locked>>	61%	13880	41%	**9	100%
Vihtavuori N32C Tin Star	<<locked>>	80%	12227	36%	**3	100%
Vihtavuori N330	<<locked>>	61%	11705	34%	**3	97%
[Vihtavuori N340]*	<<locked>>	61%	11414	33%	**0	88%
[Vihtavuori N350]*	<<locked>>	70%	11995	35%	**9	80%
Winchester 231	<<locked>>	60%	18942	56%	**4	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