Load data for 9 x 21 + .355 | 125gr | Sierra Sig V-Crown

Recommended Powder(s):

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.355 \| 125gr \| Sierra Sig V-Crown
Manufacturer SKU:	9925
Bullet Weight:	125gr \| 8.1g
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_B5940_C1232
Last updated:	2026-01-20

Load data for 110 loads in caliber 9 x 21 with .355 | 125gr | Sierra Sig V-Crown bullet and 55 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 100]*	<<locked>>	97%	23424	69%	**45	86%
ADI AP 70N	<<locked>>	73%	29573	87%	**94	100%
ADI APS 350	<<locked>>	75%	30168	89%	**17	100%
ADI APS 450	<<locked>>	78%	30632	90%	**56	100%
ADI AS 30	<<locked>>	82%	30647	90%	**06	100%
ADI AS 50N	<<locked>>	78%	30168	89%	**45	100%
Accurate No. 2	<<locked>>	80%	29588	87%	**81	99%
Accurate No. 5	<<locked>>	67%	29921	88%	**57	92%
Accurate Solo 1000	<<locked>>	81%	30414	89%	**25	100%
Accurate Solo 1250	<<locked>>	89%	30472	89%	**84	100%
Alliant BULLSEYE 👍	<<locked>>	77%	30313	89%	**40	100%
Alliant POWER PISTOL	<<locked>>	90%	30414	89%	**09	90%
Alliant Sport Pistol 👍	<<locked>>	73%	30661	90%	**43	100%
Alliant UNIQUE 👍	<<locked>>	90%	30168	88%	**53	100%
Baschieri & Pellagri 100	<<locked>>	83%	30284	89%	**35	100%
Baschieri & Pellagri 102 Pistol	<<locked>>	96%	24337	71%	**89	100%
Baschieri & Pellagri 103 Pistol	<<locked>>	80%	30545	90%	**71	100%
Hodgdon Clays	<<locked>>	75%	30458	89%	**30	100%
Hodgdon HS-6	<<locked>>	73%	29878	88%	**47	94%
Hodgdon Longshot	<<locked>>	71%	30647	90%	**57	96%
Hodgdon Universal	<<locked>>	81%	29573	87%	**94	100%
Hodgdon CFE Pistol	<<locked>>	85%	30603	90%	**04	100%
Lovex D036	<<locked>>	67%	29878	88%	**57	92%
Lovex S011	<<locked>>	71%	30487	89%	**52	100%
Lovex S020	<<locked>>	81%	29747	87%	**11	100%
Maxam CSB 1	<<locked>>	92%	30400	89%	**78	100%
Maxam CSB 2	<<locked>>	91%	30618	90%	**11	100%
Maxam CSB 3	<<locked>>	85%	29660	87%	**55	100%
Maxam CSB 4	<<locked>>	82%	30327	89%	**42	100%
Maxam CSB 5	<<locked>>	76%	30124	88%	**93	100%
Ramshot Silhouette 👍	<<locked>>	74%	30545	90%	**47	99%
Ramshot True Blue	<<locked>>	69%	30124	88%	**47	96%
ReloadSwiss RS 12	<<locked>>	78%	30066	88%	**84	100%
ReloadSwiss RS 20 👍	<<locked>>	92%	30081	88%	**60	100%
[ReloadSwiss RS 24]*	<<locked>>	94%	30371	89%	**89	83%
Rottweil P 801	<<locked>>	72%	30327	89%	**52	100%
Rottweil P 806	<<locked>>	97%	24279	71%	**83	93%
SNPE Vectan A0	<<locked>>	92%	30429	89%	**98	100%
SNPE Vectan BA 9	<<locked>>	82%	30501	89%	**81	100%
SNPE Vectan BA10	<<locked>>	73%	30618	90%	**56	100%
SNPE Vectan BA7 1/2	<<locked>>	97%	29501	87%	**24	95%
SNPE Vectan BA9 1/2	<<locked>>	84%	30429	89%	**98	100%
SNPE Vectan SP 2	<<locked>>	87%	30008	88%	**32	92%
Shooters World Auto Pistol	<<locked>>	67%	29878	88%	**57	92%
Somchem MP200	<<locked>>	82%	30197	89%	**34	100%
Somchem MS200	<<locked>>	86%	30008	88%	**14	100%
[Somchem S221]*	<<locked>>	78%	30327	89%	**73	87%
Vihtavuori 3N37	<<locked>>	92%	30530	90%	**73	97%
Vihtavuori N310	<<locked>>	64%	29327	86%	**53	100%
Vihtavuori N320	<<locked>>	81%	29950	88%	**52	100%
Vihtavuori N32C Tin Star	<<locked>>	96%	23235	68%	**04	100%
Vihtavuori N330	<<locked>>	85%	30487	89%	**17	100%
Vihtavuori N340	<<locked>>	87%	29994	88%	**17	100%
Vihtavuori N350	<<locked>>	95%	30168	89%	**63	97%
Winchester 231	<<locked>>	69%	29573	87%	**68	100%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AP 100]*	<<locked>>	85%	17593	52%	**20	81%
ADI AP 70N	<<locked>>	62%	21306	63%	**73	100%
ADI APS 350	<<locked>>	63%	22887	67%	**5	100%
ADI APS 450	<<locked>>	62%	21060	62%	**2	100%
ADI AS 30	<<locked>>	60%	17854	52%	**2	100%
ADI AS 50N	<<locked>>	62%	19406	57%	**4	100%
Accurate No. 2	<<locked>>	61%	16781	49%	**1	92%
[Accurate No. 5]*	<<locked>>	62%	24729	73%	**68	89%
Accurate Solo 1000	<<locked>>	62%	18739	55%	**8	100%
Accurate Solo 1250	<<locked>>	63%	15069	44%	**2	99%
Alliant BULLSEYE	<<locked>>	61%	19479	57%	**50	98%
[Alliant POWER PISTOL]*	<<locked>>	72%	18333	54%	**76	81%
Alliant Sport Pistol	<<locked>>	62%	22089	65%	**09	98%
Alliant UNIQUE	<<locked>>	61%	14083	41%	**2	93%
Baschieri & Pellagri 100	<<locked>>	60%	16114	47%	**9	100%
Baschieri & Pellagri 102 Pistol	<<locked>>	75%	14518	43%	**2	100%
Baschieri & Pellagri 103 Pistol	<<locked>>	62%	17564	52%	**4	100%
Hodgdon Clays	<<locked>>	61%	22104	65%	**2	100%
[Hodgdon HS-6]*	<<locked>>	61%	19769	58%	**70	88%
Hodgdon Longshot	<<locked>>	62%	22379	66%	**25	92%
Hodgdon Universal	<<locked>>	61%	17231	51%	**8	100%
Hodgdon CFE Pistol	<<locked>>	61%	15983	47%	**1	99%
[Lovex D036]*	<<locked>>	62%	24700	72%	**68	89%
Lovex S011	<<locked>>	60%	21915	64%	**33	100%
Lovex S020	<<locked>>	61%	16288	48%	**1	97%
Maxam CSB 1	<<locked>>	65%	15156	44%	**8	99%
Maxam CSB 2	<<locked>>	62%	13721	40%	**5	100%
Maxam CSB 3	<<locked>>	62%	16563	49%	**8	100%
Maxam CSB 4	<<locked>>	61%	17390	51%	**8	100%
Maxam CSB 5	<<locked>>	60%	19638	58%	**1	100%
Ramshot Silhouette	<<locked>>	62%	20856	61%	**86	96%
Ramshot True Blue	<<locked>>	61%	23018	68%	**25	93%
ReloadSwiss RS 12	<<locked>>	61%	18362	54%	**17	100%
ReloadSwiss RS 20	<<locked>>	62%	12879	38%	**5	94%
[ReloadSwiss RS 24]*	<<locked>>	89%	26556	78%	**30	80%
Rottweil P 801	<<locked>>	60%	21480	63%	**37	100%
[Rottweil P 806]*	<<locked>>	77%	12415	36%	**01	80%
SNPE Vectan A0	<<locked>>	64%	14953	44%	**2	93%
SNPE Vectan BA 9	<<locked>>	61%	17158	50%	**5	98%
SNPE Vectan BA10	<<locked>>	61%	22800	67%	**8	100%
[SNPE Vectan BA7 1/2]*	<<locked>>	69%	14286	42%	**5	83%
SNPE Vectan BA9 1/2	<<locked>>	60%	16099	47%	**5	99%
[SNPE Vectan SP 2]*	<<locked>>	67%	15592	46%	**43	80%
[Shooters World Auto Pistol]*	<<locked>>	62%	24700	72%	**68	89%
Somchem MP200	<<locked>>	62%	17202	50%	**01	94%
Somchem MS200	<<locked>>	60%	15069	44%	**5	95%
[Somchem S221]*	<<locked>>	68%	21843	64%	**22	80%
[Vihtavuori 3N37]*	<<locked>>	63%	13242	39%	**2	84%
Vihtavuori N310	<<locked>>	62%	27195	80%	**27	100%
Vihtavuori N320	<<locked>>	61%	17318	51%	**8	100%
Vihtavuori N32C Tin Star	<<locked>>	83%	17492	51%	**9	100%
Vihtavuori N330	<<locked>>	60%	14504	43%	**5	99%
Vihtavuori N340	<<locked>>	61%	14402	42%	**2	94%
[Vihtavuori N350]*	<<locked>>	66%	13358	39%	**5	84%
Winchester 231	<<locked>>	60%	22887	67%	**73	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