Load data for .357 SIG + .355 | 121gr | Frontier Bullets CMJ FP atch

Recommended Powder(s): Hodgdon Universal, Hodgdon CFE Pistol, SNPE Vectan BA 9, SNPE Vectan BA9 1/2, Vihtavuori N330

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.355 \| 121gr \| Frontier Bullets CMJ FP atch
Manufacturer SKU:	100107
Bullet Weight:	121gr \| 7.8g
Bullet Diameter:	0.355" \| 9.02mm
Bullet Length:	0.539" \| 13.7mm
Caliber:	.357 SIG load data
Case Length (l3):	0.860" \| 21.8mm
Cartridge Length (C.O.L.):	0.948" \| 24.1mm
Seated Depth:	0.451" \| 11.4mm
Shank Seated Depth:	0.451" \| 11.4mm
Case Capacity:	19.5 Grains of Water \| 1.27 cm³
Primer Size:	Small Pistol (SP)
Max. allowed Pressure:	44237 psi \| 3050 bar
LID:	LID_B10965_C518
Last updated:	2025-11-06

Load data for 120 loads in caliber .357 SIG with .355 | 121gr | Frontier Bullets CMJ FP atch bullet and 60 powders such as Hodgdon Universal, Hodgdon CFE Pistol, SNPE Vectan BA 9, SNPE Vectan BA9 1/2, Vihtavuori N330. 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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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>>	88%	38972	88%	**66	100%
ADI APS 350	<<locked>>	91%	38899	88%	**66	100%
ADI APS 450	<<locked>>	93%	38377	87%	**02	100%
ADI AS 30	<<locked>>	96%	37565	85%	**42	100%
ADI AS 50N	<<locked>>	94%	38609	87%	**98	100%
Accurate No. 2	<<locked>>	93%	38043	86%	**30	99%
Accurate No. 5	<<locked>>	80%	38899	88%	**22	93%
Accurate Solo 1000	<<locked>>	95%	37318	84%	**65	100%
Accurate Solo 1250	<<locked>>	97%	32169	73%	**71	100%
Alliant BULLSEYE	<<locked>>	93%	39421	89%	**16	100%
[Alliant POWER PISTOL]*	<<locked>>	96%	30197	68%	**53	86%
Alliant Sport Pistol	<<locked>>	88%	39566	89%	**19	100%
Alliant UNIQUE	<<locked>>	96%	31212	71%	**24	99%
Baschieri & Pellagri 100	<<locked>>	97%	36999	84%	**68	100%
Hodgdon Clays	<<locked>>	91%	39334	89%	**86	100%
Hodgdon HP38	<<locked>>	74%	39073	88%	**24	100%
Hodgdon HS-6	<<locked>>	86%	38725	88%	**06	95%
Hodgdon Longshot	<<locked>>	83%	38696	87%	**12	96%
Hodgdon TiteGroup	<<locked>>	68%	39697	90%	**81	100%
Hodgdon Universal 👍	<<locked>>	96%	37710	85%	**53	100%
Hodgdon CFE Pistol 👍	<<locked>>	97%	35592	80%	**27	100%
Hodgdon TrailBoss	<<locked>>	96%	10602	24%	**8	100%
Lovex D032	<<locked>>	67%	39088	88%	**11	100%
Lovex D036	<<locked>>	80%	38827	88%	**22	93%
Lovex S011	<<locked>>	84%	38348	87%	**98	100%
Lovex S020	<<locked>>	96%	39436	89%	**76	100%
Maxam CSB 1	<<locked>>	96%	29515	67%	**35	100%
Maxam CSB 2	<<locked>>	97%	30139	68%	**78	100%
Maxam CSB 3	<<locked>>	97%	34127	77%	**75	100%
Maxam CSB 4	<<locked>>	97%	37275	84%	**84	100%
Maxam CSB 5	<<locked>>	92%	38029	86%	**38	100%
Ramshot Silhouette	<<locked>>	88%	38856	88%	**06	99%
Ramshot True Blue	<<locked>>	81%	38247	86%	**02	96%
Ramshot Zip	<<locked>>	75%	39262	89%	**34	100%
ReloadSwiss RS 12	<<locked>>	94%	39305	89%	**53	100%
ReloadSwiss RS 14	<<locked>>	95%	9935	22%	**8	97%
ReloadSwiss RS 20	<<locked>>	97%	28340	64%	**01	100%
Rottweil P 801	<<locked>>	87%	39262	89%	**14	100%
[Rottweil P 806]*	<<locked>>	96%	19696	45%	**48	85%
SNPE Vectan A0	<<locked>>	97%	30168	68%	**52	99%
SNPE Vectan BA 9 👍	<<locked>>	97%	37840	86%	**24	100%
SNPE Vectan BA10	<<locked>>	87%	38334	87%	**02	100%
SNPE Vectan BA7 1/2	<<locked>>	97%	26281	59%	**22	90%
SNPE Vectan BA9 1/2 👍	<<locked>>	96%	35418	80%	**14	100%
SNPE Vectan SP 2	<<locked>>	96%	32213	73%	**09	90%
Shooters World Auto Pistol	<<locked>>	80%	38827	88%	**22	93%
Shooters World Clean Shot	<<locked>>	67%	39088	88%	**11	100%
Shooters World Ultimate Pistol	<<locked>>	67%	39610	90%	**02	100%
Somchem MP200	<<locked>>	97%	38101	86%	**89	100%
Somchem MS200	<<locked>>	96%	33881	77%	**17	100%
Somchem S121	<<locked>>	63%	39015	88%	**80	100%
[Somchem S221]*	<<locked>>	91%	39465	89%	**29	86%
Vihtavuori 3N37	<<locked>>	96%	28776	65%	**04	93%
Vihtavuori N310	<<locked>>	79%	38711	88%	**12	100%
Vihtavuori N320	<<locked>>	97%	39218	89%	**11	100%
Vihtavuori N32C Tin Star	<<locked>>	96%	21031	48%	**2	100%
Vihtavuori N330 👍	<<locked>>	96%	35404	80%	**37	100%
Vihtavuori N340	<<locked>>	96%	32590	74%	**11	100%
Vihtavuori N350	<<locked>>	96%	26745	60%	**65	93%
Winchester 231	<<locked>>	83%	39262	89%	**34	100%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
ADI AP 70N	<<locked>>	60%	19000	43%	**1	99%
[ADI APS 350]²	<<locked>>	59%	19624	44%	**3	100%
ADI APS 450	<<locked>>	62%	19566	44%	**6	100%
ADI AS 30	<<locked>>	63%	18347	41%	**2	100%
ADI AS 50N	<<locked>>	63%	19160	43%	**8	100%
[Accurate No. 2]*	<<locked>>	61%	15360	35%	**3	87%
[Accurate No. 5]*	<<locked>>	61%	21379	48%	**60	83%
Accurate Solo 1000	<<locked>>	62%	17840	40%	**2	100%
Accurate Solo 1250	<<locked>>	61%	13793	31%	**6	96%
Alliant BULLSEYE	<<locked>>	61%	17767	40%	**1	94%
[Alliant POWER PISTOL]*	<<locked>>	83%	22466	51%	**12	80%
Alliant Sport Pistol	<<locked>>	60%	19653	44%	**10	95%
[Alliant UNIQUE]*	<<locked>>	60%	13503	31%	**9	89%
Baschieri & Pellagri 100	<<locked>>	61%	15867	36%	**3	100%
[Hodgdon Clays]²	<<locked>>	59%	19798	45%	**6	100%
Hodgdon HP38	<<locked>>	61%	26498	60%	**79	100%
[Hodgdon HS-6]*	<<locked>>	62%	18304	41%	**8	83%
[Hodgdon Longshot]*	<<locked>>	61%	19421	44%	**17	86%
Hodgdon TiteGroup	<<locked>>	60%	31024	70%	**89	100%
Hodgdon Universal	<<locked>>	60%	16027	36%	**9	98%
Hodgdon CFE Pistol	<<locked>>	61%	15548	35%	**2	97%
Hodgdon TrailBoss	<<locked>>	81%	8572	19%	**6	99%
Lovex D032	<<locked>>	61%	31589	71%	**35	100%
[Lovex D036]*	<<locked>>	61%	21335	48%	**60	83%
Lovex S011	<<locked>>	60%	20044	45%	**5	100%
Lovex S020	<<locked>>	61%	15273	35%	**2	94%
Maxam CSB 1	<<locked>>	62%	13402	30%	**0	95%
Maxam CSB 2	<<locked>>	60%	12488	28%	**3	99%
Maxam CSB 3	<<locked>>	60%	14634	33%	**6	99%
Maxam CSB 4	<<locked>>	61%	16476	37%	**6	100%
Maxam CSB 5	<<locked>>	60%	18144	41%	**2	100%
Ramshot Silhouette	<<locked>>	61%	18231	41%	**8	91%
[Ramshot True Blue]*	<<locked>>	62%	21176	48%	**47	88%
Ramshot Zip	<<locked>>	60%	25411	57%	**73	100%
ReloadSwiss RS 12	<<locked>>	61%	16868	38%	**5	100%
ReloadSwiss RS 14	<<locked>>	83%	8340	19%	**6	95%
[ReloadSwiss RS 20]*	<<locked>>	61%	11908	27%	**3	89%
Rottweil P 801	<<locked>>	61%	20450	46%	**4	100%
[Rottweil P 806]*	<<locked>>	88%	15737	36%	**50	81%
[SNPE Vectan A0]*	<<locked>>	60%	13140	30%	**0	88%
SNPE Vectan BA 9	<<locked>>	61%	16027	36%	**6	96%
SNPE Vectan BA10	<<locked>>	62%	21582	49%	**9	100%
[SNPE Vectan BA7 1/2]*	<<locked>>	72%	14881	34%	**6	80%
SNPE Vectan BA9 1/2	<<locked>>	60%	14997	34%	**6	96%
[SNPE Vectan SP 2]*	<<locked>>	78%	19160	43%	**83	80%
[Shooters World Auto Pistol]*	<<locked>>	61%	21335	48%	**60	83%
Shooters World Clean Shot	<<locked>>	61%	31589	71%	**35	100%
Shooters World Ultimate Pistol	<<locked>>	62%	33141	75%	**27	100%
[Somchem MP200]*	<<locked>>	61%	15505	35%	**5	89%
Somchem MS200	<<locked>>	62%	15113	34%	**9	92%
Somchem S121	<<locked>>	60%	35259	80%	**40	100%
[Somchem S221]*	<<locked>>	79%	27340	62%	**65	80%
[Vihtavuori 3N37]*	<<locked>>	67%	13880	31%	**9	81%
[Vihtavuori N310]²	<<locked>>	59%	23380	53%	**8	100%
Vihtavuori N320	<<locked>>	62%	16752	38%	**9	100%
Vihtavuori N32C Tin Star	<<locked>>	61%	10124	23%	**5	100%
Vihtavuori N330	<<locked>>	62%	14373	32%	**2	98%
[Vihtavuori N340]*	<<locked>>	61%	13706	31%	**3	89%
[Vihtavuori N350]*	<<locked>>	70%	13735	31%	**9	81%
Winchester 231	<<locked>>	62%	21727	49%	**17	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