Load data for .357 Magnum + .358 | 148gr | Speer LBBWC

Recommended Powder(s): ADI AP 100, SNPE Vectan BA7 1/2, Somchem S221, Vihtavuori 3N37, Vihtavuori N350

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.358 \| 148gr \| Speer LBBWC
Manufacturer SKU:	4605
Bullet Weight:	148gr \| 9.6g
Bullet Diameter:	0.358" \| 9.09mm
Bullet Length:	0.580" \| 14.7mm
Caliber:	.357 Magnum load data
Case Length (l3):	1.290" \| 32.8mm
Cartridge Length (C.O.L.):	1.566" \| 39.8mm
Seated Depth:	0.304" \| 7.7mm
Shank Seated Depth:	0.304" \| 7.7mm
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_B6231_C513
Last updated:	2025-02-02

Load data for 122 loads in caliber .357 Magnum with .358 | 148gr | Speer LBBWC bullet and 61 powders such as ADI AP 100, SNPE Vectan BA7 1/2, Somchem S221, Vihtavuori 3N37, Vihtavuori N350. 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.

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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>>	96%	38319	88%	**21	100%
ADI AP 70N	<<locked>>	71%	42511	98%	**42	100%
ADI AS 30	<<locked>>	83%	43453	100%	**53	100%
ADI AS 50N	<<locked>>	77%	41829	96%	**80	100%
Accurate No. 2	<<locked>>	78%	43279	99%	**71	100%
Accurate No. 5	<<locked>>	63%	41466	95%	**63	100%
Accurate No. 7	<<locked>>	78%	42351	97%	**22	95%
Accurate No. 9	<<locked>>	87%	43453	100%	**29	90%
Accurate Solo 1000	<<locked>>	81%	42989	99%	**76	100%
Accurate Solo 1250	<<locked>>	83%	40843	94%	**06	100%
Accurate TCM	<<locked>>	86%	41727	96%	**99	91%
[Alliant 2400]*	<<locked>>	97%	40190	92%	**16	86%
Alliant BULLSEYE	<<locked>>	75%	42917	99%	**07	100%
Alliant POWER PISTOL	<<locked>>	83%	41930	96%	**12	100%
Alliant UNIQUE	<<locked>>	84%	41989	96%	**98	100%
Baschieri & Pellagri 100	<<locked>>	80%	41582	96%	**60	100%
Hodgdon Clays	<<locked>>	76%	40567	93%	**65	100%
Hodgdon HS-6	<<locked>>	68%	41887	96%	**40	100%
Hodgdon Longshot	<<locked>>	65%	41959	96%	**34	100%
Hodgdon Universal	<<locked>>	79%	42511	98%	**42	100%
Hodgdon TrailBoss	<<locked>>	94%	15229	35%	**3	100%
Lovex D036	<<locked>>	63%	41423	95%	**63	100%
Lovex D037.1	<<locked>>	78%	42351	97%	**22	95%
Lovex D037.2	<<locked>>	86%	42279	97%	**16	90%
Lovex S011	<<locked>>	69%	42148	97%	**96	100%
Lovex S020	<<locked>>	77%	42975	99%	**65	100%
Maxam CSB 1	<<locked>>	87%	41263	95%	**09	100%
Maxam CSB 2	<<locked>>	83%	41278	95%	**16	100%
Maxam CSB 3	<<locked>>	81%	40538	93%	**83	100%
Maxam CSB 4	<<locked>>	81%	43047	99%	**83	100%
Maxam CSB 5	<<locked>>	78%	43308	100%	**40	100%
[Ramshot Enforcer]*	<<locked>>	96%	39204	90%	**09	87%
Ramshot Silhouette	<<locked>>	70%	43163	99%	**14	100%
Ramshot True Blue	<<locked>>	64%	42496	98%	**27	100%
ReloadSwiss RS 12	<<locked>>	73%	41727	96%	**02	100%
ReloadSwiss RS 14	<<locked>>	93%	13184	30%	**3	100%
ReloadSwiss RS 20	<<locked>>	84%	40901	94%	**75	100%
ReloadSwiss RS 24	<<locked>>	86%	43105	99%	**32	97%
Rottweil P 801	<<locked>>	69%	42656	98%	**76	100%
Rottweil P 806	<<locked>>	89%	41481	95%	**16	100%
SNPE Vectan A0	<<locked>>	88%	42612	98%	**65	100%
SNPE Vectan BA 9	<<locked>>	80%	42670	98%	**32	100%
SNPE Vectan BA10	<<locked>>	74%	40712	94%	**84	100%
SNPE Vectan BA7 1/2 👍	<<locked>>	92%	42409	97%	**24	100%
SNPE Vectan BA9 1/2	<<locked>>	81%	42757	98%	**35	100%
Shooters World Auto Pistol	<<locked>>	63%	41423	95%	**63	100%
Shooters World Heavy Pistol	<<locked>>	86%	42279	97%	**16	90%
Shooters World Major Pistol	<<locked>>	78%	42351	97%	**22	95%
Somchem MP200	<<locked>>	76%	40785	94%	**85	100%
Somchem MS200	<<locked>>	82%	41249	95%	**58	100%
Somchem S221 👍	<<locked>>	72%	41945	96%	**86	99%
Vihtavuori 3N37 👍	<<locked>>	85%	43149	99%	**47	100%
Vihtavuori 3N38	<<locked>>	95%	41205	95%	**83	97%
Vihtavuori N105	<<locked>>	97%	34882	80%	**57	98%
Vihtavuori N310	<<locked>>	64%	40669	93%	**88	100%
Vihtavuori N320	<<locked>>	77%	41408	95%	**70	100%
Vihtavuori N32C Tin Star	<<locked>>	96%	34751	80%	**35	100%
Vihtavuori N330	<<locked>>	78%	41046	94%	**22	100%
Vihtavuori N340	<<locked>>	83%	43033	99%	**85	100%
Vihtavuori N350 👍	<<locked>>	86%	40741	94%	**21	100%
Winchester 231	<<locked>>	68%	43236	99%	**22	100%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AP 100]*	<<locked>>	61%	14315	33%	**8	86%
ADI AP 70N	<<locked>>	60%	31372	72%	**17	100%
ADI AS 30	<<locked>>	62%	26049	60%	**53	100%
ADI AS 50N	<<locked>>	61%	27557	63%	**15	100%
Accurate No. 2	<<locked>>	61%	25077	58%	**52	100%
Accurate No. 5	<<locked>>	61%	38870	89%	**27	100%
[Accurate No. 7]*	<<locked>>	61%	21683	50%	**94	84%
[Accurate No. 9]*	<<locked>>	73%	26078	60%	**76	81%
Accurate Solo 1000	<<locked>>	61%	25962	60%	**79	100%
Accurate Solo 1250	<<locked>>	61%	22350	51%	**79	100%
[Accurate TCM]*	<<locked>>	70%	23293	54%	**20	80%
[Alliant 2400]*	<<locked>>	87%	29312	67%	**45	80%
Alliant BULLSEYE	<<locked>>	61%	28863	66%	**27	100%
Alliant POWER PISTOL	<<locked>>	61%	21828	50%	**88	93%
Alliant UNIQUE	<<locked>>	61%	22133	51%	**29	100%
Baschieri & Pellagri 100	<<locked>>	61%	24860	57%	**70	100%
Hodgdon Clays	<<locked>>	61%	28340	65%	**27	100%
Hodgdon HS-6	<<locked>>	61%	32068	74%	**19	100%
Hodgdon Longshot	<<locked>>	61%	36608	84%	**68	100%
Hodgdon Universal	<<locked>>	61%	26426	61%	**55	100%
Hodgdon TrailBoss	<<locked>>	61%	7252	17%	**6	100%
Lovex D036	<<locked>>	61%	38812	89%	**27	100%
[Lovex D037.1]*	<<locked>>	61%	21683	50%	**94	84%
[Lovex D037.2]*	<<locked>>	72%	25251	58%	**57	80%
Lovex S011	<<locked>>	61%	33040	76%	**94	100%
Lovex S020	<<locked>>	61%	25918	60%	**65	100%
Maxam CSB 1	<<locked>>	62%	21306	49%	**56	100%
Maxam CSB 2	<<locked>>	62%	22785	52%	**86	100%
Maxam CSB 3	<<locked>>	62%	24511	56%	**86	100%
Maxam CSB 4	<<locked>>	61%	26020	60%	**89	100%
Maxam CSB 5	<<locked>>	60%	28268	65%	**70	100%
[Ramshot Enforcer]*	<<locked>>	87%	28210	65%	**48	81%
Ramshot Silhouette	<<locked>>	61%	32721	75%	**93	100%
Ramshot True Blue	<<locked>>	61%	37231	86%	**71	100%
ReloadSwiss RS 12	<<locked>>	62%	30182	69%	**78	100%
ReloadSwiss RS 14	<<locked>>	65%	7324	17%	**6	100%
ReloadSwiss RS 20	<<locked>>	61%	21118	49%	**15	100%
[ReloadSwiss RS 24]*	<<locked>>	61%	18811	43%	**12	84%
Rottweil P 801	<<locked>>	61%	33924	78%	**91	100%
Rottweil P 806	<<locked>>	61%	14707	34%	**56	92%
SNPE Vectan A0	<<locked>>	61%	21205	49%	**79	100%
SNPE Vectan BA 9	<<locked>>	61%	25193	58%	**25	100%
SNPE Vectan BA10	<<locked>>	60%	29399	68%	**60	100%
SNPE Vectan BA7 1/2	<<locked>>	61%	17796	41%	**43	96%
SNPE Vectan BA9 1/2	<<locked>>	61%	24613	57%	**19	100%
Shooters World Auto Pistol	<<locked>>	61%	38812	89%	**27	100%
[Shooters World Heavy Pistol]*	<<locked>>	72%	25251	58%	**57	80%
[Shooters World Major Pistol]*	<<locked>>	61%	21683	50%	**94	84%
Somchem MP200	<<locked>>	61%	25947	60%	**91	100%
Somchem MS200	<<locked>>	62%	23859	55%	**32	100%
Somchem S221	<<locked>>	61%	28587	66%	**99	95%
Vihtavuori 3N37	<<locked>>	61%	20204	46%	**19	98%
[Vihtavuori 3N38]*	<<locked>>	63%	14997	34%	**14	80%
[Vihtavuori N105]*	<<locked>>	68%	13373	31%	**07	81%
Vihtavuori N310	<<locked>>	61%	37420	86%	**48	100%
Vihtavuori N320	<<locked>>	61%	26498	61%	**06	100%
Vihtavuori N32C Tin Star	<<locked>>	62%	15592	36%	**6	100%
Vihtavuori N330	<<locked>>	60%	24468	56%	**29	100%
Vihtavuori N340	<<locked>>	61%	22263	51%	**15	100%
Vihtavuori N350	<<locked>>	60%	18304	42%	**79	97%
Winchester 231	<<locked>>	61%	34592	79%	**30	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