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

Recommended Powder(s): Alliant UNIQUE, ReloadSwiss RS 20, SNPE Vectan A0, Vihtavuori 3N37, Vihtavuori N340

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 Magnum load data
Case Length (l3):	1.290" \| 32.8mm
Cartridge Length (C.O.L.):	1.323" \| 33.6mm
Seated Depth:	0.506" \| 12.9mm
Shank Seated Depth:	0.506" \| 12.9mm
Case Capacity:	25.6 Grains of Water \| 1.66 cm³
Primer Size:	Small Pistol Magnum (SPM)
Max. allowed Pressure:	43511 psi \| 3000 bar
LID:	LID_B10965_C513
Last updated:	2025-11-05

Load data for 124 loads in caliber .357 Magnum with .355 | 121gr | Frontier Bullets CMJ FP atch bullet and 62 powders such as Alliant UNIQUE, ReloadSwiss RS 20, SNPE Vectan A0, Vihtavuori 3N37, Vihtavuori N340. 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 100	<<locked>>	95%	28587	66%	**09	91%
ADI AP 70N	<<locked>>	74%	37927	87%	**58	100%
ADI APS 350	<<locked>>	81%	38406	88%	**71	100%
ADI APS 450	<<locked>>	82%	37405	86%	**98	100%
ADI AS 30	<<locked>>	85%	38319	88%	**53	100%
ADI AS 50N	<<locked>>	82%	38885	89%	**09	100%
Accurate No. 2	<<locked>>	82%	37652	87%	**68	100%
Accurate No. 5	<<locked>>	69%	38841	89%	**70	97%
[Accurate No. 7]*	<<locked>>	86%	38261	88%	**09	86%
Accurate Solo 1000	<<locked>>	84%	37884	87%	**83	100%
Accurate Solo 1250	<<locked>>	91%	38595	89%	**52	100%
Alliant BULLSEYE	<<locked>>	80%	38406	88%	**21	100%
Alliant POWER PISTOL	<<locked>>	91%	39015	90%	**19	95%
Alliant Sport Pistol	<<locked>>	75%	39044	90%	**34	100%
Alliant UNIQUE 👍	<<locked>>	90%	37884	87%	**24	100%
Baschieri & Pellagri 100	<<locked>>	84%	37536	86%	**80	100%
Hodgdon Clays	<<locked>>	81%	38740	89%	**88	100%
Hodgdon HP38	<<locked>>	63%	38014	87%	**29	100%
Hodgdon HS-6	<<locked>>	74%	38667	89%	**50	99%
Hodgdon Longshot	<<locked>>	71%	38319	88%	**44	99%
Hodgdon Universal	<<locked>>	82%	37927	87%	**58	100%
Hodgdon CFE Pistol	<<locked>>	86%	38624	89%	**62	100%
Hodgdon TrailBoss	<<locked>>	96%	14199	33%	**9	100%
Lovex D036	<<locked>>	69%	38769	89%	**70	97%
[Lovex D037.1]*	<<locked>>	86%	38261	88%	**09	86%
Lovex S011	<<locked>>	72%	37260	86%	**02	100%
Lovex S020	<<locked>>	82%	38101	88%	**78	100%
Maxam CSB 1	<<locked>>	94%	37797	87%	**42	100%
Maxam CSB 2	<<locked>>	89%	37565	86%	**42	100%
Maxam CSB 3	<<locked>>	87%	37405	86%	**09	100%
Maxam CSB 4	<<locked>>	85%	37942	87%	**96	100%
Maxam CSB 5	<<locked>>	81%	39102	90%	**53	100%
Ramshot Silhouette	<<locked>>	74%	37420	86%	**14	100%
Ramshot True Blue	<<locked>>	70%	38580	89%	**40	99%
Ramshot Zip	<<locked>>	64%	38580	89%	**39	100%
ReloadSwiss RS 12	<<locked>>	77%	37565	86%	**25	100%
ReloadSwiss RS 14	<<locked>>	94%	12981	30%	**3	100%
ReloadSwiss RS 20 👍	<<locked>>	92%	38058	87%	**24	100%
[ReloadSwiss RS 24]*	<<locked>>	94%	38769	89%	**96	89%
Rottweil P 801	<<locked>>	72%	37550	86%	**89	100%
Rottweil P 806	<<locked>>	97%	34940	80%	**06	98%
SNPE Vectan A0 👍	<<locked>>	93%	37507	86%	**68	100%
SNPE Vectan BA 9	<<locked>>	84%	37652	87%	**35	100%
SNPE Vectan BA10	<<locked>>	76%	37391	86%	**98	100%
SNPE Vectan BA7 1/2	<<locked>>	97%	36593	84%	**94	99%
SNPE Vectan BA9 1/2	<<locked>>	86%	38508	89%	**58	100%
SNPE Vectan SP 2	<<locked>>	87%	39001	90%	**29	97%
Shooters World Auto Pistol	<<locked>>	69%	38769	89%	**70	97%
[Shooters World Major Pistol]*	<<locked>>	86%	38261	88%	**09	86%
Somchem MP200	<<locked>>	84%	38957	90%	**21	100%
Somchem MS200	<<locked>>	87%	37246	86%	**75	100%
Somchem S221	<<locked>>	78%	38464	88%	**70	92%
Vihtavuori 3N37 👍	<<locked>>	92%	38812	89%	**57	100%
[Vihtavuori 3N38]*	<<locked>>	97%	30516	70%	**68	86%
[Vihtavuori N105]*	<<locked>>	96%	22945	53%	**76	85%
Vihtavuori N310	<<locked>>	67%	37101	85%	**94	100%
Vihtavuori N320	<<locked>>	81%	37550	86%	**96	100%
Vihtavuori N32C Tin Star	<<locked>>	96%	29008	67%	**22	100%
Vihtavuori N330	<<locked>>	85%	38319	88%	**68	100%
Vihtavuori N340 👍	<<locked>>	90%	39059	90%	**98	100%
Vihtavuori N350	<<locked>>	96%	38609	89%	**53	100%
Winchester 231	<<locked>>	72%	38580	89%	**39	100%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AP 100]*	<<locked>>	71%	16012	37%	**30	81%
ADI AP 70N	<<locked>>	62%	26977	62%	**14	100%
ADI APS 350	<<locked>>	62%	25498	59%	**14	100%
ADI APS 450	<<locked>>	62%	24004	55%	**24	100%
ADI AS 30	<<locked>>	60%	22002	51%	**30	100%
ADI AS 50N	<<locked>>	62%	24294	56%	**15	100%
Accurate No. 2	<<locked>>	60%	20015	46%	**89	96%
Accurate No. 5	<<locked>>	61%	30255	70%	**42	94%
[Accurate No. 7]*	<<locked>>	77%	27920	64%	**39	80%
Accurate Solo 1000	<<locked>>	61%	21814	50%	**60	100%
Accurate Solo 1250	<<locked>>	61%	18376	42%	**47	100%
Alliant BULLSEYE	<<locked>>	60%	23090	53%	**84	100%
[Alliant POWER PISTOL]*	<<locked>>	60%	17071	39%	**86	81%
Alliant Sport Pistol	<<locked>>	61%	26527	61%	**50	100%
Alliant UNIQUE	<<locked>>	60%	18304	42%	**79	97%
Baschieri & Pellagri 100	<<locked>>	61%	20537	47%	**50	100%
Hodgdon Clays	<<locked>>	62%	25947	60%	**30	100%
Hodgdon HP38	<<locked>>	62%	36434	84%	**06	100%
Hodgdon HS-6	<<locked>>	61%	25614	59%	**43	94%
Hodgdon Longshot	<<locked>>	60%	27021	62%	**76	96%
Hodgdon Universal	<<locked>>	60%	21944	50%	**22	100%
Hodgdon CFE Pistol	<<locked>>	61%	20943	48%	**06	100%
Hodgdon TrailBoss	<<locked>>	61%	8093	19%	**2	100%
Lovex D036	<<locked>>	61%	30197	69%	**42	94%
[Lovex D037.1]*	<<locked>>	77%	27920	64%	**39	80%
Lovex S011	<<locked>>	61%	27021	62%	**75	100%
Lovex S020	<<locked>>	61%	21379	49%	**35	100%
Maxam CSB 1	<<locked>>	61%	17506	40%	**24	100%
Maxam CSB 2	<<locked>>	62%	18855	43%	**70	100%
Maxam CSB 3	<<locked>>	61%	19856	46%	**53	100%
Maxam CSB 4	<<locked>>	62%	21944	50%	**79	100%
Maxam CSB 5	<<locked>>	62%	24976	57%	**79	100%
Ramshot Silhouette	<<locked>>	61%	25135	58%	**27	99%
Ramshot True Blue	<<locked>>	61%	28819	66%	**93	97%
Ramshot Zip	<<locked>>	61%	35157	81%	**96	100%
ReloadSwiss RS 12	<<locked>>	62%	25150	58%	**61	100%
ReloadSwiss RS 14	<<locked>>	60%	7716	18%	**2	97%
ReloadSwiss RS 20	<<locked>>	62%	16781	39%	**73	98%
[ReloadSwiss RS 24]*	<<locked>>	76%	23714	55%	**50	80%
Rottweil P 801	<<locked>>	61%	28210	65%	**68	100%
[Rottweil P 806]*	<<locked>>	61%	11632	27%	**1	80%
SNPE Vectan A0	<<locked>>	60%	17071	39%	**20	96%
SNPE Vectan BA 9	<<locked>>	61%	21074	48%	**99	100%
SNPE Vectan BA10	<<locked>>	60%	25367	58%	**50	100%
[SNPE Vectan BA7 1/2]*	<<locked>>	62%	15156	35%	**1	86%
SNPE Vectan BA9 1/2	<<locked>>	62%	21103	48%	**06	100%
[SNPE Vectan SP 2]*	<<locked>>	60%	17782	41%	**35	84%
Shooters World Auto Pistol	<<locked>>	61%	30197	69%	**42	94%
[Shooters World Major Pistol]*	<<locked>>	77%	27920	64%	**39	80%
Somchem MP200	<<locked>>	61%	21335	49%	**42	98%
Somchem MS200	<<locked>>	61%	19754	45%	**93	99%
[Somchem S221]*	<<locked>>	61%	22408	52%	**94	83%
[Vihtavuori 3N37]*	<<locked>>	60%	16186	37%	**47	89%
[Vihtavuori 3N38]*	<<locked>>	86%	22597	52%	**20	80%
[Vihtavuori N105]*	<<locked>>	89%	19116	44%	**81	80%
Vihtavuori N310	<<locked>>	60%	30806	71%	**22	100%
Vihtavuori N320	<<locked>>	62%	22553	52%	**96	100%
Vihtavuori N32C Tin Star	<<locked>>	62%	14388	33%	**9	100%
Vihtavuori N330	<<locked>>	61%	20059	46%	**12	100%
Vihtavuori N340	<<locked>>	60%	18173	42%	**63	98%
[Vihtavuori N350]*	<<locked>>	60%	14765	34%	**14	88%
Winchester 231	<<locked>>	61%	29051	67%	**20	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