Load data for .357 Magnum + .356 | 100gr | Berry's Flat Base Round Nose

Recommended Powder(s): Accurate No. 2, Alliant BULLSEYE, Ramshot Silhouette, Somchem MP200, Somchem MS200

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.356 \| 100gr \| Berry's Flat Base Round Nose
Manufacturer SKU:	bp-380-356-100gr-fbrn
Bullet Weight:	100gr \| 6.5g
Bullet Diameter:	0.356" \| 9.04mm
Bullet Length:	0.425" \| 10.8mm
Caliber:	.357 Magnum load data
Case Length (l3):	1.290" \| 32.8mm
Cartridge Length (C.O.L.):	1.266" \| 32.1mm
Seated Depth:	0.449" \| 11.4mm
Shank Seated Depth:	0.449" \| 11.4mm
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_B10778_C513
Last updated:	2025-02-02

Load data for 114 loads in caliber .357 Magnum with .356 | 100gr | Berry's Flat Base Round Nose bullet and 57 powders such as Accurate No. 2, Alliant BULLSEYE, Ramshot Silhouette, Somchem MP200, Somchem MS200. 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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Min z (%)
Min FR (%)
Max FR*
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Barrel Length (cm)
Safety Buffer (%)
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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.

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%	24685	57%	**01	86%
ADI AP 70N	<<locked>>	84%	42786	98%	**24	100%
ADI AS 30	<<locked>>	93%	40988	94%	**76	100%
ADI AS 50N	<<locked>>	88%	40596	93%	**29	100%
Accurate No. 2 👍	<<locked>>	90%	43410	100%	**17	100%
Accurate No. 5	<<locked>>	75%	42888	99%	**16	97%
[Accurate No. 7]*	<<locked>>	93%	43062	99%	**59	86%
Accurate Solo 1000	<<locked>>	91%	40625	93%	**99	100%
Accurate Solo 1250	<<locked>>	96%	39233	90%	**52	100%
Alliant BULLSEYE 👍	<<locked>>	86%	41060	94%	**60	100%
Alliant POWER PISTOL	<<locked>>	96%	39160	90%	**13	93%
Alliant UNIQUE	<<locked>>	94%	36912	85%	**11	100%
Baschieri & Pellagri 100	<<locked>>	92%	40582	93%	**03	100%
Hodgdon Clays	<<locked>>	86%	40263	93%	**85	100%
Hodgdon HP38	<<locked>>	70%	42308	97%	**75	100%
Hodgdon HS-6	<<locked>>	80%	41684	96%	**83	98%
Hodgdon Longshot	<<locked>>	77%	41597	96%	**73	99%
Hodgdon TiteGroup	<<locked>>	65%	42119	97%	**09	100%
Hodgdon Universal	<<locked>>	91%	41249	95%	**01	100%
Hodgdon TrailBoss	<<locked>>	90%	10399	24%	**2	100%
Lovex D036	<<locked>>	75%	42815	98%	**16	97%
[Lovex D037.1]*	<<locked>>	93%	43062	99%	**59	86%
Lovex S011	<<locked>>	81%	43105	99%	**65	100%
Lovex S020	<<locked>>	87%	39755	91%	**91	100%
Maxam CSB 1	<<locked>>	97%	36579	84%	**19	100%
Maxam CSB 2	<<locked>>	96%	38421	88%	**55	100%
Maxam CSB 3	<<locked>>	93%	38769	89%	**19	100%
Maxam CSB 4	<<locked>>	93%	41800	96%	**32	100%
Maxam CSB 5	<<locked>>	86%	40190	92%	**53	100%
Ramshot Silhouette 👍	<<locked>>	82%	42337	97%	**77	100%
Ramshot True Blue	<<locked>>	75%	40915	94%	**67	99%
Ramshot Zip	<<locked>>	69%	40843	94%	**65	100%
ReloadSwiss RS 12	<<locked>>	86%	40596	93%	**68	100%
ReloadSwiss RS 14	<<locked>>	95%	10269	24%	**8	98%
ReloadSwiss RS 20	<<locked>>	96%	36274	83%	**04	100%
[ReloadSwiss RS 24]*	<<locked>>	95%	36187	83%	**44	85%
Rottweil P 801	<<locked>>	82%	42931	99%	**42	100%
Rottweil P 806	<<locked>>	96%	27949	64%	**78	94%
SNPE Vectan A0	<<locked>>	97%	37159	85%	**49	100%
SNPE Vectan BA 9	<<locked>>	91%	40944	94%	**65	100%
SNPE Vectan BA10	<<locked>>	86%	43004	99%	**37	100%
SNPE Vectan BA7 1/2	<<locked>>	96%	31473	72%	**06	96%
SNPE Vectan BA9 1/2	<<locked>>	94%	41989	96%	**94	100%
Shooters World Auto Pistol	<<locked>>	75%	42815	98%	**16	97%
[Shooters World Major Pistol]*	<<locked>>	93%	43062	99%	**59	86%
Shooters World Ultimate Pistol	<<locked>>	63%	42989	99%	**63	100%
Somchem MP200 👍	<<locked>>	92%	43018	99%	**67	100%
Somchem MS200 👍	<<locked>>	97%	42032	97%	**31	100%
Somchem S221	<<locked>>	85%	42540	98%	**26	92%
Vihtavuori 3N37	<<locked>>	94%	35926	83%	**17	98%
Vihtavuori N310	<<locked>>	76%	43352	100%	**44	100%
Vihtavuori N320	<<locked>>	90%	41162	95%	**35	100%
Vihtavuori N32C Tin Star	<<locked>>	94%	24033	55%	**24	100%
Vihtavuori N330	<<locked>>	93%	42206	97%	**11	100%
Vihtavuori N340	<<locked>>	93%	38667	89%	**98	100%
Vihtavuori N350	<<locked>>	96%	34679	80%	**88	98%
Winchester 231	<<locked>>	79%	42496	98%	**78	100%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AP 100]*	<<locked>>	85%	19189	44%	**70	81%
ADI AP 70N	<<locked>>	61%	22698	52%	**16	100%
ADI AS 30	<<locked>>	61%	19769	45%	**58	100%
ADI AS 50N	<<locked>>	60%	20160	46%	**11	100%
Accurate No. 2	<<locked>>	62%	18333	42%	**01	93%
Accurate No. 5	<<locked>>	61%	26687	61%	**50	90%
[Accurate No. 7]*	<<locked>>	87%	34185	79%	**14	81%
Accurate Solo 1000	<<locked>>	61%	19943	46%	**88	100%
Accurate Solo 1250	<<locked>>	61%	15577	36%	**32	98%
Alliant BULLSEYE	<<locked>>	62%	21219	49%	**09	98%
[Alliant POWER PISTOL]*	<<locked>>	72%	20595	47%	**45	82%
Alliant UNIQUE	<<locked>>	62%	15983	37%	**78	94%
Baschieri & Pellagri 100	<<locked>>	61%	17898	41%	**55	100%
Hodgdon Clays	<<locked>>	61%	23163	53%	**45	100%
Hodgdon HP38	<<locked>>	61%	32460	75%	**50	100%
[Hodgdon HS-6]*	<<locked>>	61%	22249	51%	**42	89%
Hodgdon Longshot	<<locked>>	60%	23728	55%	**78	93%
Hodgdon TiteGroup	<<locked>>	62%	38624	89%	**70	100%
Hodgdon Universal	<<locked>>	62%	19508	45%	**47	100%
Hodgdon TrailBoss	<<locked>>	62%	6063	14%	**5	96%
Lovex D036	<<locked>>	61%	26643	61%	**50	90%
[Lovex D037.1]*	<<locked>>	87%	34185	79%	**14	81%
Lovex S011	<<locked>>	60%	23902	55%	**93	100%
Lovex S020	<<locked>>	61%	17579	40%	**11	97%
Maxam CSB 1	<<locked>>	61%	14895	34%	**09	98%
Maxam CSB 2	<<locked>>	61%	15258	35%	**61	100%
Maxam CSB 3	<<locked>>	61%	17361	40%	**61	100%
Maxam CSB 4	<<locked>>	60%	18362	42%	**68	100%
Maxam CSB 5	<<locked>>	60%	21263	49%	**88	100%
Ramshot Silhouette	<<locked>>	61%	21857	50%	**29	96%
Ramshot True Blue	<<locked>>	61%	25483	59%	**07	94%
Ramshot Zip	<<locked>>	61%	31473	72%	**40	100%
ReloadSwiss RS 12	<<locked>>	61%	20363	47%	**70	100%
ReloadSwiss RS 14	<<locked>>	61%	5569	13%	**2	90%
ReloadSwiss RS 20	<<locked>>	61%	13750	32%	**32	94%
[ReloadSwiss RS 24]*	<<locked>>	87%	28645	66%	**06	81%
Rottweil P 801	<<locked>>	62%	24584	56%	**02	100%
[Rottweil P 806]*	<<locked>>	75%	13866	32%	**20	81%
SNPE Vectan A0	<<locked>>	60%	14750	34%	**02	92%
SNPE Vectan BA 9	<<locked>>	61%	18246	42%	**88	98%
SNPE Vectan BA10	<<locked>>	61%	23728	55%	**81	100%
[SNPE Vectan BA7 1/2]*	<<locked>>	64%	13590	31%	**83	81%
SNPE Vectan BA9 1/2	<<locked>>	61%	18072	42%	**98	99%
Shooters World Auto Pistol	<<locked>>	61%	26643	61%	**50	90%
[Shooters World Major Pistol]*	<<locked>>	87%	34185	79%	**14	81%
Shooters World Ultimate Pistol	<<locked>>	61%	39392	91%	**24	100%
Somchem MP200	<<locked>>	60%	17912	41%	**20	94%
Somchem MS200	<<locked>>	61%	16752	39%	**78	96%
[Somchem S221]*	<<locked>>	67%	23656	54%	**91	81%
[Vihtavuori 3N37]*	<<locked>>	61%	13474	31%	**12	83%
Vihtavuori N310	<<locked>>	60%	28094	65%	**63	100%
Vihtavuori N320	<<locked>>	62%	19479	45%	**14	100%
Vihtavuori N32C Tin Star	<<locked>>	61%	11037	25%	**5	100%
Vihtavuori N330	<<locked>>	61%	16708	38%	**04	100%
Vihtavuori N340	<<locked>>	62%	16041	37%	**68	94%
[Vihtavuori N350]*	<<locked>>	61%	12604	29%	**83	82%
Winchester 231	<<locked>>	60%	24845	57%	**29	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.