Load data for .357 Magnum + .357 | 158gr | Speer SP MAG GD

Recommended Powder(s):

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.357 \| 158gr \| Speer SP MAG GD
Manufacturer SKU:	4215
Bullet Weight:	158gr \| 10.2g
Bullet Diameter:	0.357" \| 9.07mm
Bullet Length:	<<locked>>
Caliber:	.357 Magnum load data
Case Length (l3):	1.290" \| 32.8mm
Cartridge Length (C.O.L.):	<<locked>>
Seated Depth:	<<locked>>
Shank Seated Depth:	<<locked>>
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_B6225_C513
Last updated:	2026-05-30

Load data for 136 loads in caliber .357 Magnum with .357 | 158gr | Speer SP MAG GD bullet and 68 powder(s). 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>>	96%	36941	85%	**09	99%
ADI AP 70N	<<locked>>	67%	38000	87%	**07	100%
ADI APS 350	<<locked>>	75%	38261	88%	**47	100%
ADI APS 450	<<locked>>	77%	38638	89%	**83	100%
ADI AS 30	<<locked>>	78%	38537	89%	**15	100%
ADI AS 50N	<<locked>>	75%	39059	90%	**65	100%
Accurate No. 2	<<locked>>	74%	37492	86%	**24	100%
Accurate No. 7	<<locked>>	77%	38493	88%	**91	94%
[Accurate No. 9]*	<<locked>>	85%	38319	88%	**71	88%
Accurate Solo 1000	<<locked>>	76%	38130	88%	**45	100%
Accurate Solo 1250	<<locked>>	82%	38957	90%	**04	100%
Accurate TCM	<<locked>>	85%	38914	89%	**81	90%
[Alliant 2400]*	<<locked>>	96%	37971	87%	**94	85%
Alliant BE-86	<<locked>>	80%	39044	90%	**98	100%
Alliant BLUE DOT	<<locked>>	96%	35897	82%	**42	92%
Alliant BULLSEYE	<<locked>>	71%	37333	86%	**57	100%
Alliant Herco	<<locked>>	95%	37898	87%	**66	100%
Alliant POWER PISTOL	<<locked>>	81%	38667	89%	**81	99%
Alliant RED DOT	<<locked>>	81%	39146	90%	**45	100%
Alliant Sport Pistol	<<locked>>	66%	37884	87%	**66	100%
Alliant UNIQUE	<<locked>>	81%	38072	88%	**73	100%
Baschieri & Pellagri 100	<<locked>>	76%	37565	86%	**38	100%
Baschieri & Pellagri 102 Pistol	<<locked>>	96%	38522	89%	**61	100%
Baschieri & Pellagri 103 Pistol	<<locked>>	73%	38232	88%	**68	100%
Hodgdon Clays	<<locked>>	86%	38682	89%	**83	100%
Hodgdon HS-6	<<locked>>	66%	37826	87%	**02	100%
Hodgdon Longshot	<<locked>>	64%	38885	89%	**02	100%
Hodgdon Universal	<<locked>>	74%	38000	87%	**07	100%
Hodgdon CFE Pistol	<<locked>>	77%	38145	88%	**07	100%
Hodgdon TrailBoss	<<locked>>	97%	16505	38%	**0	100%
Lovex D037.1	<<locked>>	77%	38493	88%	**91	94%
[Lovex D037.2]*	<<locked>>	84%	38319	88%	**71	88%
Lovex S011	<<locked>>	66%	37695	87%	**68	100%
Lovex S020	<<locked>>	73%	38464	88%	**30	100%
Maxam CSB 1	<<locked>>	84%	38319	88%	**94	100%
Maxam CSB 2	<<locked>>	80%	38232	88%	**98	100%
Maxam CSB 3	<<locked>>	79%	38029	87%	**71	100%
Maxam CSB 4	<<locked>>	77%	38479	88%	**55	100%
Maxam CSB 5	<<locked>>	72%	37855	87%	**02	100%
[Ramshot Enforcer]*	<<locked>>	97%	37811	87%	**94	86%
Ramshot Silhouette	<<locked>>	68%	39015	90%	**80	100%
ReloadSwiss RS 12	<<locked>>	70%	38493	88%	**78	100%
ReloadSwiss RS 20	<<locked>>	83%	38667	89%	**63	100%
ReloadSwiss RS 24	<<locked>>	82%	37623	86%	**62	95%
Rottweil P 801	<<locked>>	65%	37855	87%	**45	100%
Rottweil P 806	<<locked>>	88%	39059	90%	**91	100%
SNPE Vectan A0	<<locked>>	85%	39001	90%	**34	100%
SNPE Vectan A1	<<locked>>	75%	38218	88%	**81	100%
SNPE Vectan BA 9	<<locked>>	77%	38682	89%	**07	100%
SNPE Vectan BA10	<<locked>>	72%	38638	89%	**83	100%
SNPE Vectan BA7 1/2 👍	<<locked>>	89%	38406	88%	**89	100%
SNPE Vectan BA9 1/2	<<locked>>	77%	38305	88%	**07	100%
SNPE Vectan SP 2 👍	<<locked>>	76%	38305	88%	**75	100%
[Shooters World Heavy Pistol]*	<<locked>>	84%	38319	88%	**71	88%
Shooters World Major Pistol	<<locked>>	77%	38493	88%	**91	94%
Somchem MP200	<<locked>>	75%	38928	89%	**70	100%
Somchem MS200	<<locked>>	80%	38783	89%	**43	100%
Somchem S221	<<locked>>	70%	38421	88%	**52	98%
Vihtavuori 3N37 👍	<<locked>>	82%	38943	89%	**12	100%
Vihtavuori 3N38	<<locked>>	96%	37826	87%	**52	96%
Vihtavuori N105	<<locked>>	96%	32227	74%	**29	98%
Vihtavuori N320	<<locked>>	73%	37913	87%	**48	100%
Vihtavuori N32C Tin Star	<<locked>>	95%	29428	68%	**01	100%
Vihtavuori N330	<<locked>>	74%	38841	89%	**14	100%
Vihtavuori N340	<<locked>>	79%	38232	88%	**37	100%
Vihtavuori N350 👍	<<locked>>	86%	37695	87%	**96	100%
Winchester 231	<<locked>>	65%	38450	88%	**91	100%
Winchester AutoComp	<<locked>>	82%	38290	88%	**17	100%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AP 100]*	<<locked>>	61%	14895	34%	**2	87%
ADI AP 70N	<<locked>>	61%	31923	73%	**45	100%
ADI APS 350	<<locked>>	61%	28152	65%	**2	100%
ADI APS 450	<<locked>>	60%	26266	60%	**5	100%
ADI AS 30	<<locked>>	61%	25831	59%	**4	100%
ADI AS 50N	<<locked>>	62%	28123	65%	**43	100%
Accurate No. 2	<<locked>>	61%	24758	57%	**70	100%
[Accurate No. 7]*	<<locked>>	60%	21321	49%	**12	83%
[Accurate No. 9]*	<<locked>>	73%	25106	58%	**78	80%
Accurate Solo 1000	<<locked>>	61%	25817	59%	**01	100%
Accurate Solo 1250	<<locked>>	62%	22771	52%	**14	100%
[Accurate TCM]*	<<locked>>	71%	23583	54%	**45	80%
[Alliant 2400]*	<<locked>>	88%	29805	68%	**76	80%
Alliant BE-86	<<locked>>	61%	23279	53%	**10	100%
[Alliant BLUE DOT]*	<<locked>>	73%	19392	45%	**53	80%
Alliant BULLSEYE	<<locked>>	61%	28355	65%	**42	100%
Alliant Herco	<<locked>>	61%	16273	37%	**5	100%
Alliant POWER PISTOL	<<locked>>	62%	21973	51%	**15	93%
Alliant RED DOT	<<locked>>	61%	24990	57%	**8	100%
Alliant Sport Pistol	<<locked>>	60%	31792	73%	**91	100%
Alliant UNIQUE	<<locked>>	61%	22205	51%	**53	100%
Baschieri & Pellagri 100	<<locked>>	62%	25382	58%	**04	100%
Baschieri & Pellagri 102 Pistol	<<locked>>	61%	16027	37%	**6	100%
Baschieri & Pellagri 103 Pistol	<<locked>>	61%	27180	62%	**53	100%
Hodgdon Clays	<<locked>>	61%	22539	52%	**2	100%
Hodgdon HS-6	<<locked>>	60%	31430	72%	**20	100%
Hodgdon Longshot	<<locked>>	61%	34708	80%	**60	100%
Hodgdon Universal	<<locked>>	61%	26484	61%	**76	100%
Hodgdon CFE Pistol	<<locked>>	61%	24845	57%	**53	100%
Hodgdon TrailBoss	<<locked>>	94%	15548	36%	**3	100%
[Lovex D037.1]*	<<locked>>	60%	21321	49%	**12	83%
[Lovex D037.2]*	<<locked>>	72%	25106	58%	**78	80%
Lovex S011	<<locked>>	61%	32576	75%	**12	100%
Lovex S020	<<locked>>	61%	26252	60%	**93	100%
Maxam CSB 1	<<locked>>	61%	20697	48%	**1	100%
Maxam CSB 2	<<locked>>	61%	22713	52%	**10	100%
Maxam CSB 3	<<locked>>	60%	23554	54%	**7	100%
Maxam CSB 4	<<locked>>	62%	26049	60%	**10	100%
Maxam CSB 5	<<locked>>	60%	28007	64%	**4	100%
[Ramshot Enforcer]*	<<locked>>	88%	28500	66%	**66	81%
Ramshot Silhouette	<<locked>>	61%	31879	73%	**01	100%
ReloadSwiss RS 12	<<locked>>	62%	30618	70%	**99	100%
ReloadSwiss RS 20	<<locked>>	62%	21205	49%	**43	100%
[ReloadSwiss RS 24]*	<<locked>>	61%	18956	44%	**50	84%
Rottweil P 801	<<locked>>	60%	33098	76%	**99	100%
Rottweil P 806	<<locked>>	61%	15243	35%	**04	93%
SNPE Vectan A0	<<locked>>	61%	21089	48%	**01	100%
SNPE Vectan A1	<<locked>>	61%	26150	60%	**43	100%
SNPE Vectan BA 9	<<locked>>	61%	25353	58%	**47	100%
SNPE Vectan BA10	<<locked>>	60%	29196	67%	**1	100%
SNPE Vectan BA7 1/2	<<locked>>	61%	17753	41%	**4	96%
SNPE Vectan BA9 1/2	<<locked>>	61%	24424	56%	**40	100%
SNPE Vectan SP 2	<<locked>>	61%	23279	54%	**52	96%
[Shooters World Heavy Pistol]*	<<locked>>	72%	25106	58%	**78	80%
[Shooters World Major Pistol]*	<<locked>>	60%	21321	49%	**12	83%
Somchem MP200	<<locked>>	61%	25570	59%	**02	100%
Somchem MS200	<<locked>>	62%	23757	55%	**53	100%
Somchem S221	<<locked>>	61%	28863	66%	**14	95%
Vihtavuori 3N37	<<locked>>	61%	20668	48%	**50	98%
[Vihtavuori 3N38]*	<<locked>>	64%	15098	35%	**5	81%
[Vihtavuori N105]*	<<locked>>	65%	12618	29%	**2	80%
Vihtavuori N320	<<locked>>	62%	27978	64%	**47	100%
Vihtavuori N32C Tin Star	<<locked>>	69%	16926	39%	**0	100%
Vihtavuori N330	<<locked>>	61%	26498	61%	**76	100%
Vihtavuori N340	<<locked>>	61%	23061	53%	**50	100%
Vihtavuori N350	<<locked>>	61%	17593	40%	**1	97%
Winchester 231	<<locked>>	60%	33953	78%	**42	100%
Winchester AutoComp	<<locked>>	62%	22292	51%	**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