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

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

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:	0.533" \| 13.5mm
Caliber:	9 x 21 load data
Case Length (l3):	0.830" \| 21.1mm
Cartridge Length (C.O.L.):	1.154" \| 29.3mm
Seated Depth:	0.209" \| 5.3mm
Shank Seated Depth:	0.209" \| 5.3mm
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:	2025-02-02

Load data for 100 loads in caliber 9 x 21 with .355 | 125gr | Sierra Sig V-Crown bullet and 50 powders such as Alliant BULLSEYE, Lovex S020, Maxam CSB 2, Ramshot Silhouette, 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>>	97%	23424	69%	**45	86%
ADI AP 70N	<<locked>>	73%	29573	87%	**94	100%
ADI AS 30	<<locked>>	82%	30647	90%	**06	100%
ADI AS 50N	<<locked>>	78%	30168	89%	**45	100%
Accurate No. 2	<<locked>>	79%	28631	84%	**71	98%
Accurate No. 5	<<locked>>	66%	29066	85%	**43	92%
Accurate Solo 1000	<<locked>>	79%	29515	87%	**15	100%
Accurate Solo 1250	<<locked>>	87%	29327	86%	**71	100%
Alliant BULLSEYE 👍	<<locked>>	76%	29312	86%	**27	100%
Alliant POWER PISTOL	<<locked>>	90%	30414	89%	**09	90%
Alliant UNIQUE	<<locked>>	89%	29167	86%	**37	100%
Baschieri & Pellagri 100	<<locked>>	82%	29327	86%	**22	100%
Hodgdon Clays	<<locked>>	75%	30458	89%	**30	100%
Hodgdon HS-6	<<locked>>	73%	29356	86%	**37	94%
Hodgdon Longshot	<<locked>>	70%	29472	86%	**43	96%
Hodgdon Universal	<<locked>>	81%	29573	87%	**94	100%
Hodgdon TrailBoss	<<locked>>	97%	10660	31%	**4	100%
Lovex D036	<<locked>>	66%	29022	85%	**43	92%
Lovex S011	<<locked>>	70%	29443	86%	**38	100%
Lovex S020 👍	<<locked>>	80%	29124	85%	**98	100%
Maxam CSB 1	<<locked>>	91%	29356	86%	**71	100%
Maxam CSB 2 👍	<<locked>>	91%	30618	90%	**11	100%
Maxam CSB 3	<<locked>>	85%	29660	87%	**55	100%
Maxam CSB 4	<<locked>>	81%	29196	86%	**29	100%
Maxam CSB 5	<<locked>>	75%	29109	85%	**79	100%
Ramshot Silhouette 👍	<<locked>>	73%	29631	87%	**34	99%
Ramshot True Blue	<<locked>>	69%	30124	88%	**47	96%
ReloadSwiss RS 12	<<locked>>	78%	30066	88%	**84	100%
ReloadSwiss RS 14	<<locked>>	95%	9268	27%	**1	98%
ReloadSwiss RS 20 👍	<<locked>>	92%	30081	88%	**60	100%
[ReloadSwiss RS 24]*	<<locked>>	93%	29617	87%	**80	82%
Rottweil P 801	<<locked>>	72%	30327	89%	**52	100%
Rottweil P 806	<<locked>>	96%	23453	69%	**66	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>>	96%	28689	84%	**11	95%
SNPE Vectan BA9 1/2	<<locked>>	83%	29675	87%	**88	100%
Shooters World Auto Pistol	<<locked>>	66%	29022	85%	**43	92%
Somchem MP200	<<locked>>	82%	30197	89%	**34	100%
Somchem MS200	<<locked>>	85%	28950	85%	**98	100%
[Somchem S221]*	<<locked>>	78%	30327	89%	**73	87%
Vihtavuori 3N37	<<locked>>	91%	29370	86%	**57	97%
Vihtavuori N310	<<locked>>	64%	29327	86%	**53	100%
Vihtavuori N320	<<locked>>	81%	29950	88%	**52	100%
Vihtavuori N32C Tin Star	<<locked>>	95%	22394	66%	**4	100%
Vihtavuori N330	<<locked>>	85%	30487	89%	**17	100%
Vihtavuori N340	<<locked>>	86%	28935	85%	**01	100%
Vihtavuori N350	<<locked>>	94%	29167	86%	**50	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 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>>	60%	13924	41%	**2	98%
Alliant BULLSEYE	<<locked>>	61%	19479	57%	**50	98%
[Alliant POWER PISTOL]*	<<locked>>	72%	18333	54%	**76	81%
Alliant UNIQUE	<<locked>>	61%	14083	41%	**2	93%
Baschieri & Pellagri 100	<<locked>>	60%	16114	47%	**9	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 TrailBoss	<<locked>>	77%	7513	22%	**9	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>>	61%	13460	40%	**6	98%
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 14	<<locked>>	76%	6701	20%	**6	94%
ReloadSwiss RS 20	<<locked>>	61%	12444	36%	**2	93%
[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>>	61%	14040	41%	**6	92%
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>>	64%	12763	37%	**9	81%
SNPE Vectan BA9 1/2	<<locked>>	60%	16099	47%	**5	99%
[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>>	69%	22379	66%	**35	81%
[Vihtavuori 3N37]*	<<locked>>	61%	12343	36%	**6	82%
Vihtavuori N310	<<locked>>	62%	27195	80%	**27	100%
Vihtavuori N320	<<locked>>	61%	17318	51%	**8	100%
Vihtavuori N32C Tin Star	<<locked>>	62%	10196	30%	**8	100%
Vihtavuori N330	<<locked>>	60%	14504	43%	**5	99%
Vihtavuori N340	<<locked>>	61%	14402	42%	**2	94%
[Vihtavuori N350]*	<<locked>>	60%	11182	33%	**0	80%
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