Load data for 9 x 21 + .356 | 123gr | LOS HP

Recommended Powder(s): Alliant BULLSEYE, Alliant UNIQUE, Lovex S020, Maxam CSB 2, ReloadSwiss RS 20

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.356 \| 123gr \| LOS HP
Bullet Weight:	123gr \| 8.0g
Bullet Diameter:	0.356" \| 9.04mm
Bullet Length:	0.550" \| 14.0mm
Caliber:	9 x 21 load data
Case Length (l3):	0.830" \| 21.1mm
Cartridge Length (C.O.L.):	1.154" \| 29.3mm
Seated Depth:	0.226" \| 5.7mm
Shank Seated Depth:	0.226" \| 5.7mm
Case Capacity:	15.5 Grains of Water \| 1.01 cm³
Primer Size:	Small Pistol (SP)
Max. allowed Pressure:	34084 psi \| 2350 bar
LID:	LID_B3510_C1232
Last updated:	2025-01-01

Load data for 106 loads in caliber 9 x 21 with .356 | 123gr | LOS HP bullet and 53 powders such as Alliant BULLSEYE, Alliant UNIQUE, Lovex S020, Maxam CSB 2, ReloadSwiss RS 20. 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>>	96%	22669	66%	**22	84%
ADI AP 70N	<<locked>>	74%	30081	88%	**94	100%
ADI APS 350	<<locked>>	75%	29631	87%	**04	100%
ADI APS 450	<<locked>>	78%	30313	89%	**50	100%
ADI AS 30	<<locked>>	83%	30501	89%	**99	100%
ADI AS 50N	<<locked>>	79%	29979	88%	**35	100%
Accurate No. 2	<<locked>>	80%	28689	84%	**61	98%
Accurate No. 5	<<locked>>	68%	29733	87%	**47	91%
Accurate Solo 1000	<<locked>>	80%	29196	86%	**09	100%
Accurate Solo 1250	<<locked>>	88%	29486	87%	**71	100%
Alliant BULLSEYE 👍	<<locked>>	77%	29269	86%	**24	100%
[Alliant POWER PISTOL]*	<<locked>>	90%	29617	87%	**83	88%
Alliant UNIQUE 👍	<<locked>>	90%	29892	88%	**40	100%
Baschieri & Pellagri 100	<<locked>>	83%	29356	86%	**22	100%
Hodgdon Clays	<<locked>>	75%	30110	88%	**24	100%
Hodgdon HS-6	<<locked>>	74%	30153	88%	**43	94%
Hodgdon Longshot	<<locked>>	71%	30197	89%	**47	96%
Hodgdon Universal	<<locked>>	82%	30081	88%	**94	100%
Hodgdon CFE Pistol	<<locked>>	84%	29051	85%	**78	100%
Hodgdon TrailBoss	<<locked>>	96%	10631	31%	**4	100%
Lovex D036	<<locked>>	68%	29675	87%	**47	91%
Lovex S011	<<locked>>	70%	29312	86%	**35	100%
Lovex S020 👍	<<locked>>	81%	29240	86%	**94	100%
Maxam CSB 1	<<locked>>	92%	29573	87%	**68	100%
Maxam CSB 2 👍	<<locked>>	90%	29022	85%	**84	100%
Maxam CSB 3	<<locked>>	86%	29675	87%	**48	100%
Maxam CSB 4	<<locked>>	81%	29211	86%	**25	100%
Maxam CSB 5	<<locked>>	75%	28718	84%	**73	100%
Ramshot Silhouette	<<locked>>	75%	30066	88%	**34	99%
Ramshot True Blue	<<locked>>	69%	29356	86%	**27	95%
Ramshot Zip	<<locked>>	63%	30023	88%	**68	100%
ReloadSwiss RS 12	<<locked>>	79%	30153	88%	**88	100%
ReloadSwiss RS 14	<<locked>>	94%	9456	28%	**8	98%
ReloadSwiss RS 20 👍	<<locked>>	94%	30313	89%	**60	100%
Rottweil P 801	<<locked>>	71%	28587	84%	**32	100%
Rottweil P 806	<<locked>>	96%	22017	65%	**30	91%
SNPE Vectan A0	<<locked>>	90%	28950	85%	**75	99%
SNPE Vectan BA 9	<<locked>>	84%	30618	90%	**81	100%
SNPE Vectan BA10	<<locked>>	73%	30298	89%	**50	100%
SNPE Vectan BA7 1/2	<<locked>>	95%	27731	81%	**91	94%
SNPE Vectan BA9 1/2	<<locked>>	84%	29921	88%	**84	100%
Shooters World Auto Pistol	<<locked>>	68%	29675	87%	**47	91%
Somchem MP200	<<locked>>	83%	30501	89%	**30	99%
Somchem MS200	<<locked>>	86%	29254	86%	**98	100%
[Somchem S221]*	<<locked>>	78%	29979	88%	**57	85%
Vihtavuori 3N37	<<locked>>	93%	30052	88%	**63	96%
Vihtavuori N310	<<locked>>	65%	28950	85%	**47	100%
Vihtavuori N320	<<locked>>	81%	29762	87%	**45	100%
Vihtavuori N32C Tin Star	<<locked>>	96%	22785	67%	**4	100%
Vihtavuori N330	<<locked>>	84%	28660	84%	**91	100%
Vihtavuori N340	<<locked>>	87%	29080	85%	**04	100%
Vihtavuori N350	<<locked>>	96%	29878	88%	**47	96%
Winchester 231	<<locked>>	70%	30023	88%	**68	100%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AP 100]*	<<locked>>	89%	18971	56%	**43	81%
ADI AP 70N	<<locked>>	60%	20015	59%	**40	100%
ADI APS 350	<<locked>>	61%	21321	63%	**6	100%
ADI APS 450	<<locked>>	62%	20610	60%	**2	100%
[ADI AS 30]²	<<locked>>	59%	17550	51%	**9	100%
ADI AS 50N	<<locked>>	61%	19479	57%	**8	100%
Accurate No. 2	<<locked>>	62%	16665	49%	**1	91%
[Accurate No. 5]*	<<locked>>	61%	23772	70%	**48	88%
Accurate Solo 1000	<<locked>>	62%	18521	54%	**8	100%
Accurate Solo 1250	<<locked>>	60%	13938	41%	**6	97%
Alliant BULLSEYE	<<locked>>	62%	19276	57%	**43	97%
[Alliant POWER PISTOL]*	<<locked>>	75%	19711	58%	**99	81%
Alliant UNIQUE	<<locked>>	61%	14141	42%	**2	92%
Baschieri & Pellagri 100	<<locked>>	60%	16027	47%	**2	100%
Hodgdon Clays	<<locked>>	61%	21335	63%	**9	100%
[Hodgdon HS-6]*	<<locked>>	60%	19174	56%	**47	86%
Hodgdon Longshot	<<locked>>	61%	21553	63%	**99	91%
Hodgdon Universal	<<locked>>	61%	17303	51%	**1	100%
Hodgdon CFE Pistol	<<locked>>	61%	16041	47%	**5	98%
Hodgdon TrailBoss	<<locked>>	76%	7614	22%	**9	99%
[Lovex D036]*	<<locked>>	61%	23728	70%	**45	88%
Lovex S011	<<locked>>	60%	21901	64%	**27	100%
Lovex S020	<<locked>>	61%	16201	48%	**1	96%
Maxam CSB 1	<<locked>>	60%	13358	39%	**6	97%
Maxam CSB 2	<<locked>>	62%	13619	40%	**5	100%
Maxam CSB 3	<<locked>>	62%	16433	48%	**8	100%
Maxam CSB 4	<<locked>>	60%	16998	50%	**5	100%
Maxam CSB 5	<<locked>>	60%	19072	56%	**8	100%
Ramshot Silhouette	<<locked>>	61%	19638	58%	**56	94%
Ramshot True Blue	<<locked>>	60%	21988	65%	**02	91%
Ramshot Zip	<<locked>>	61%	28123	83%	**42	100%
ReloadSwiss RS 12	<<locked>>	61%	18289	54%	**10	100%
ReloadSwiss RS 14	<<locked>>	79%	7556	22%	**9	95%
ReloadSwiss RS 20	<<locked>>	61%	12444	37%	**2	92%
Rottweil P 801	<<locked>>	61%	21509	63%	**33	100%
[Rottweil P 806]*	<<locked>>	78%	13227	39%	**14	80%
SNPE Vectan A0	<<locked>>	61%	14011	41%	**6	91%
SNPE Vectan BA 9	<<locked>>	61%	16940	50%	**5	98%
SNPE Vectan BA10	<<locked>>	61%	22263	65%	**5	100%
[SNPE Vectan BA7 1/2]*	<<locked>>	65%	12778	38%	**3	80%
SNPE Vectan BA9 1/2	<<locked>>	61%	16012	47%	**5	98%
[Shooters World Auto Pistol]*	<<locked>>	61%	23728	70%	**45	88%
Somchem MP200	<<locked>>	60%	16215	48%	**1	93%
Somchem MS200	<<locked>>	60%	15011	44%	**8	94%
[Somchem S221]*	<<locked>>	70%	23018	68%	**35	80%
[Vihtavuori 3N37]*	<<locked>>	62%	12618	37%	**2	82%
Vihtavuori N310	<<locked>>	62%	26745	78%	**17	100%
Vihtavuori N320	<<locked>>	61%	16940	50%	**5	100%
Vihtavuori N32C Tin Star	<<locked>>	62%	10269	30%	**1	100%
Vihtavuori N330	<<locked>>	60%	14344	42%	**5	99%
Vihtavuori N340	<<locked>>	62%	14417	42%	**5	93%
[Vihtavuori N350]*	<<locked>>	63%	12183	36%	**3	81%
Winchester 231	<<locked>>	61%	22727	67%	**66	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