Load data for 9 x 21 + .355 | 124gr | Geco HEXAGON

Recommended Powder(s):

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.355 \| 124gr \| Geco HEXAGON
Manufacturer SKU:	2319010
Bullet Weight:	124gr \| 8.0g
Bullet Diameter:	0.355" \| 9.02mm
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_B9010_C1232
Last updated:	2026-03-26

Load data for 118 loads in caliber 9 x 21 with .355 | 124gr | Geco HEXAGON bullet and 59 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".

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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 70N	<<locked>>	81%	30589	90%	**65	100%
ADI APS 350	<<locked>>	80%	30400	89%	**4	100%
ADI APS 450	<<locked>>	83%	30618	90%	**10	100%
ADI AS 30	<<locked>>	88%	30153	88%	**56	100%
ADI AS 50N	<<locked>>	85%	30226	89%	**99	100%
Accurate No. 2	<<locked>>	86%	30647	90%	**35	97%
Accurate No. 5	<<locked>>	72%	30110	88%	**94	90%
Accurate Solo 1000	<<locked>>	87%	30661	90%	**86	100%
Accurate Solo 1250 👍	<<locked>>	96%	30501	89%	**42	100%
Alliant BE-86	<<locked>>	93%	29660	87%	**32	100%
Alliant BULLSEYE	<<locked>>	83%	30342	89%	**88	100%
Alliant Herco	<<locked>>	96%	20537	60%	**47	96%
[Alliant POWER PISTOL]*	<<locked>>	96%	29486	87%	**27	86%
Alliant RED DOT	<<locked>>	91%	30124	88%	**79	100%
Alliant Sport Pistol	<<locked>>	78%	30037	88%	**81	99%
Alliant UNIQUE	<<locked>>	97%	29631	87%	**98	99%
Baschieri & Pellagri 100	<<locked>>	89%	30052	88%	**86	100%
Baschieri & Pellagri 102 Pistol	<<locked>>	96%	20378	60%	**4	100%
Baschieri & Pellagri 103 Pistol	<<locked>>	86%	30487	89%	**25	100%
Hodgdon Clays	<<locked>>	80%	30589	90%	**8	100%
Hodgdon HP38	<<locked>>	66%	29907	88%	**15	100%
Hodgdon HS-6	<<locked>>	79%	30516	90%	**91	92%
Hodgdon Longshot	<<locked>>	76%	30501	89%	**98	94%
Hodgdon Universal	<<locked>>	89%	30589	90%	**65	100%
Hodgdon CFE Pistol 👍	<<locked>>	91%	30472	89%	**55	100%
Lovex D036	<<locked>>	72%	30066	88%	**94	90%
Lovex S011	<<locked>>	76%	30037	88%	**99	100%
Lovex S020	<<locked>>	88%	30530	90%	**65	100%
Maxam CSB 1	<<locked>>	97%	28456	83%	**12	100%
Maxam CSB 2 👍	<<locked>>	96%	27963	82%	**42	100%
Maxam CSB 3	<<locked>>	93%	30414	89%	**19	100%
Maxam CSB 4	<<locked>>	89%	30516	90%	**02	100%
Maxam CSB 5	<<locked>>	81%	29399	86%	**43	100%
Ramshot Silhouette	<<locked>>	80%	30530	90%	**91	98%
Ramshot True Blue	<<locked>>	74%	30139	88%	**88	94%
Ramshot Zip	<<locked>>	67%	29762	87%	**22	100%
ReloadSwiss RS 12	<<locked>>	86%	30197	89%	**55	100%
ReloadSwiss RS 20	<<locked>>	96%	26789	79%	**68	100%
Rottweil P 801	<<locked>>	79%	30661	90%	**19	100%
[Rottweil P 806]*	<<locked>>	97%	17724	52%	**02	85%
SNPE Vectan A0	<<locked>>	96%	28529	84%	**22	99%
SNPE Vectan BA 9	<<locked>>	88%	30661	90%	**29	100%
SNPE Vectan BA10	<<locked>>	77%	30603	90%	**10	100%
SNPE Vectan BA7 1/2	<<locked>>	96%	24337	71%	**86	90%
SNPE Vectan BA9 1/2 👍	<<locked>>	90%	29950	88%	**42	100%
[SNPE Vectan SP 2]*	<<locked>>	95%	29718	87%	**66	89%
Shooters World Auto Pistol	<<locked>>	72%	30066	88%	**94	90%
Somchem MP200	<<locked>>	89%	30313	89%	**81	99%
Somchem MS200	<<locked>>	92%	29805	87%	**58	100%
[Somchem S221]*	<<locked>>	84%	30240	89%	**01	83%
Vihtavuori 3N37	<<locked>>	96%	28079	82%	**81	94%
Vihtavuori N310	<<locked>>	71%	30560	90%	**27	100%
Vihtavuori N320	<<locked>>	87%	30037	88%	**12	100%
Vihtavuori N32C Tin Star	<<locked>>	97%	19406	57%	**2	100%
Vihtavuori N330 👍	<<locked>>	91%	29747	87%	**61	100%
Vihtavuori N340	<<locked>>	94%	29776	87%	**61	99%
Vihtavuori N350	<<locked>>	97%	25773	76%	**35	93%
Winchester 231	<<locked>>	74%	29762	87%	**22	100%
Winchester AutoComp	<<locked>>	96%	28892	85%	**42	100%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
ADI AP 70N	<<locked>>	62%	18173	53%	**4	99%
ADI APS 350	<<locked>>	63%	20595	60%	**3	100%
ADI APS 450	<<locked>>	62%	18420	54%	**6	100%
ADI AS 30	<<locked>>	62%	16534	49%	**3	100%
ADI AS 50N	<<locked>>	62%	17172	50%	**9	100%
[Accurate No. 2]*	<<locked>>	61%	13996	41%	**0	87%
[Accurate No. 5]*	<<locked>>	60%	19856	58%	**24	82%
Accurate Solo 1000	<<locked>>	62%	16491	48%	**6	100%
Accurate Solo 1250	<<locked>>	62%	12749	37%	**7	95%
Alliant BE-86	<<locked>>	61%	12299	36%	**0	97%
Alliant BULLSEYE	<<locked>>	61%	16360	48%	**8	94%
[Alliant Herco]*	<<locked>>	71%	11487	34%	**3	87%
[Alliant POWER PISTOL]*	<<locked>>	84%	21132	62%	**83	80%
Alliant RED DOT	<<locked>>	61%	14881	44%	**0	100%
Alliant Sport Pistol	<<locked>>	60%	17912	53%	**8	94%
[Alliant UNIQUE]*	<<locked>>	62%	12575	37%	**6	88%
Baschieri & Pellagri 100	<<locked>>	61%	14098	41%	**0	99%
Baschieri & Pellagri 102 Pistol	<<locked>>	74%	11661	34%	**3	99%
Baschieri & Pellagri 103 Pistol	<<locked>>	60%	14025	41%	**9	100%
Hodgdon Clays	<<locked>>	63%	20639	61%	**6	100%
Hodgdon HP38	<<locked>>	60%	24714	73%	**50	100%
[Hodgdon HS-6]*	<<locked>>	61%	16621	49%	**1	82%
[Hodgdon Longshot]*	<<locked>>	60%	17666	52%	**8	85%
[Hodgdon Universal]²	<<locked>>	59%	14011	41%	**9	97%
Hodgdon CFE Pistol	<<locked>>	61%	13343	39%	**3	96%
[Lovex D036]*	<<locked>>	60%	19812	58%	**24	82%
Lovex S011	<<locked>>	62%	20436	60%	**8	100%
Lovex S020	<<locked>>	61%	13416	39%	**6	93%
Maxam CSB 1	<<locked>>	65%	12778	38%	**3	95%
Maxam CSB 2	<<locked>>	61%	10863	32%	**3	98%
[Maxam CSB 3]²	<<locked>>	59%	13053	38%	**3	99%
Maxam CSB 4	<<locked>>	61%	14939	44%	**6	100%
[Maxam CSB 5]²	<<locked>>	59%	16491	48%	**6	100%
Ramshot Silhouette	<<locked>>	60%	16636	49%	**8	90%
[Ramshot True Blue]*	<<locked>>	61%	19580	57%	**14	87%
Ramshot Zip	<<locked>>	62%	25599	75%	**70	100%
ReloadSwiss RS 12	<<locked>>	60%	14344	42%	**5	100%
[ReloadSwiss RS 20]*	<<locked>>	63%	11139	33%	**0	88%
Rottweil P 801	<<locked>>	60%	17840	52%	**8	100%
[Rottweil P 806]*	<<locked>>	90%	14402	42%	**14	80%
[SNPE Vectan A0]*	<<locked>>	64%	13097	38%	**0	88%
SNPE Vectan BA 9	<<locked>>	61%	14721	43%	**6	95%
SNPE Vectan BA10	<<locked>>	61%	20378	60%	**3	100%
[SNPE Vectan BA7 1/2]*	<<locked>>	75%	14518	43%	**6	81%
SNPE Vectan BA9 1/2	<<locked>>	62%	14576	43%	**9	97%
[SNPE Vectan SP 2]*	<<locked>>	79%	18478	54%	**70	81%
[Shooters World Auto Pistol]*	<<locked>>	60%	19812	58%	**24	82%
[Somchem MP200]*	<<locked>>	60%	13750	40%	**6	88%
Somchem MS200	<<locked>>	62%	13474	40%	**6	91%
[Somchem S221]*	<<locked>>	79%	25657	75%	**32	80%
[Vihtavuori 3N37]*	<<locked>>	69%	13024	38%	**3	80%
Vihtavuori N310	<<locked>>	62%	23598	69%	**1	100%
Vihtavuori N320	<<locked>>	62%	14779	43%	**6	100%
Vihtavuori N32C Tin Star	<<locked>>	81%	13605	40%	**7	100%
Vihtavuori N330	<<locked>>	62%	12647	37%	**3	97%
[Vihtavuori N340]*	<<locked>>	61%	12024	35%	**7	88%
[Vihtavuori N350]*	<<locked>>	72%	13271	39%	**9	81%
Winchester 231	<<locked>>	61%	20001	59%	**4	100%
Winchester AutoComp	<<locked>>	61%	11951	35%	**7	93%

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