Load data for .357 Magnum + .357 | 158gr | H&N RN KB

Recommended Powder(s):

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.357 \| 158gr \| H&N RN KB
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_B7482_C513
Last updated:	2026-01-21

Load data for 128 loads in caliber .357 Magnum with .357 | 158gr | H&N RN KB bullet and 64 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>>	97%	35462	82%	**96	99%
ADI AP 70N	<<locked>>	70%	38957	90%	**20	100%
ADI APS 350	<<locked>>	77%	38566	89%	**50	100%
ADI APS 450	<<locked>>	79%	39160	90%	**86	100%
ADI AS 30	<<locked>>	80%	38159	88%	**22	100%
ADI AS 50N	<<locked>>	76%	38624	89%	**65	100%
Accurate No. 2	<<locked>>	75%	37565	86%	**27	100%
Accurate No. 7	<<locked>>	78%	38159	88%	**81	93%
[Accurate No. 9]*	<<locked>>	87%	38276	88%	**75	88%
Accurate Solo 1000	<<locked>>	78%	38334	88%	**45	100%
Accurate Solo 1250	<<locked>>	84%	38986	90%	**07	100%
[Accurate TCM]*	<<locked>>	87%	38682	89%	**78	89%
[Alliant 2400]*	<<locked>>	96%	34925	80%	**52	83%
Alliant BLUE DOT	<<locked>>	97%	34127	78%	**16	90%
Alliant BULLSEYE	<<locked>>	74%	39117	90%	**80	100%
Alliant POWER PISTOL	<<locked>>	83%	38493	88%	**78	99%
Alliant Sport Pistol	<<locked>>	68%	37898	87%	**66	100%
Alliant UNIQUE	<<locked>>	83%	37449	86%	**70	100%
Baschieri & Pellagri 100	<<locked>>	80%	39102	90%	**55	100%
Baschieri & Pellagri 102 Pistol	<<locked>>	97%	36506	84%	**48	100%
Baschieri & Pellagri 103 Pistol	<<locked>>	74%	37956	87%	**68	100%
Hodgdon Clays	<<locked>>	74%	37492	86%	**53	100%
Hodgdon HS-6	<<locked>>	69%	39102	90%	**16	100%
Hodgdon Longshot	<<locked>>	65%	38740	89%	**02	100%
Hodgdon Universal	<<locked>>	78%	38957	90%	**20	100%
Hodgdon CFE Pistol	<<locked>>	78%	37942	87%	**07	100%
Lovex D037.1	<<locked>>	78%	38159	88%	**81	93%
[Lovex D037.2]*	<<locked>>	86%	38276	88%	**75	88%
Lovex S011	<<locked>>	67%	37840	87%	**68	100%
Lovex S020	<<locked>>	75%	38116	88%	**30	100%
Maxam CSB 1	<<locked>>	86%	37985	87%	**94	100%
Maxam CSB 2	<<locked>>	82%	37478	86%	**94	100%
Maxam CSB 3	<<locked>>	81%	38043	87%	**71	100%
Maxam CSB 4	<<locked>>	79%	38334	88%	**55	100%
Maxam CSB 5	<<locked>>	74%	37652	87%	**02	100%
[Ramshot Enforcer]*	<<locked>>	97%	34751	80%	**62	84%
Ramshot Silhouette	<<locked>>	69%	38870	89%	**80	100%
Ramshot True Blue	<<locked>>	63%	37681	87%	**93	100%
ReloadSwiss RS 12	<<locked>>	71%	37260	86%	**78	100%
ReloadSwiss RS 20	<<locked>>	84%	38595	89%	**63	100%
ReloadSwiss RS 24	<<locked>>	85%	39001	90%	**85	96%
Rottweil P 801	<<locked>>	68%	38769	89%	**58	100%
Rottweil P 806 👍	<<locked>>	90%	37739	87%	**81	100%
SNPE Vectan A0	<<locked>>	87%	39015	90%	**34	100%
SNPE Vectan BA 9	<<locked>>	78%	38928	89%	**07	100%
SNPE Vectan BA10	<<locked>>	73%	39146	90%	**86	100%
SNPE Vectan BA7 1/2 👍	<<locked>>	91%	38130	88%	**89	100%
SNPE Vectan BA9 1/2	<<locked>>	79%	38159	88%	**07	100%
SNPE Vectan SP 2	<<locked>>	79%	39117	90%	**94	100%
[Shooters World Heavy Pistol]*	<<locked>>	86%	38276	88%	**75	88%
Shooters World Major Pistol	<<locked>>	78%	38159	88%	**81	93%
Somchem MP200	<<locked>>	77%	38638	89%	**70	100%
Somchem MS200	<<locked>>	82%	38522	89%	**43	100%
Somchem S221	<<locked>>	71%	37913	87%	**48	98%
Vihtavuori 3N37 👍	<<locked>>	83%	37913	87%	**09	100%
Vihtavuori 3N38	<<locked>>	97%	38711	89%	**65	96%
Vihtavuori N105	<<locked>>	97%	30414	70%	**12	97%
Vihtavuori N310	<<locked>>	63%	37449	86%	**70	100%
Vihtavuori N320	<<locked>>	76%	38043	87%	**55	100%
Vihtavuori N32C Tin Star	<<locked>>	96%	32677	75%	**37	100%
Vihtavuori N330	<<locked>>	78%	39117	90%	**24	100%
Vihtavuori N340	<<locked>>	82%	38841	89%	**53	100%
Vihtavuori N350 👍	<<locked>>	87%	38232	88%	**02	100%
Winchester 231	<<locked>>	66%	38508	88%	**91	100%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AP 100]*	<<locked>>	64%	14692	34%	**8	87%
ADI AP 70N	<<locked>>	61%	29428	68%	**19	100%
ADI APS 350	<<locked>>	60%	26571	61%	**2	100%
ADI APS 450	<<locked>>	62%	26266	60%	**8	100%
ADI AS 30	<<locked>>	60%	23728	55%	**1	100%
ADI AS 50N	<<locked>>	61%	25904	60%	**24	100%
Accurate No. 2	<<locked>>	60%	23105	53%	**50	100%
[Accurate No. 7]*	<<locked>>	61%	19406	45%	**83	82%
[Accurate No. 9]*	<<locked>>	76%	26252	60%	**04	81%
Accurate Solo 1000	<<locked>>	60%	24149	55%	**4	100%
Accurate Solo 1250	<<locked>>	61%	20958	48%	**1	100%
[Accurate TCM]*	<<locked>>	73%	23598	54%	**48	80%
[Alliant 2400]*	<<locked>>	91%	30124	69%	**83	80%
[Alliant BLUE DOT]*	<<locked>>	78%	19914	46%	**76	81%
Alliant BULLSEYE	<<locked>>	60%	26600	61%	**19	100%
Alliant POWER PISTOL	<<locked>>	62%	20131	46%	**76	91%
Alliant Sport Pistol	<<locked>>	62%	31473	72%	**88	100%
Alliant UNIQUE	<<locked>>	60%	20044	46%	**24	100%
Baschieri & Pellagri 100	<<locked>>	61%	23482	54%	**4	100%
Baschieri & Pellagri 102 Pistol	<<locked>>	70%	18753	43%	**2	100%
Baschieri & Pellagri 103 Pistol	<<locked>>	61%	25469	59%	**37	100%
Hodgdon Clays	<<locked>>	60%	26992	62%	**8	100%
Hodgdon HS-6	<<locked>>	61%	29544	68%	**98	99%
Hodgdon Longshot	<<locked>>	61%	33011	76%	**37	100%
Hodgdon Universal	<<locked>>	61%	24134	55%	**50	100%
Hodgdon CFE Pistol	<<locked>>	61%	22785	52%	**27	100%
[Lovex D037.1]*	<<locked>>	61%	19406	45%	**83	82%
[Lovex D037.2]*	<<locked>>	76%	26252	60%	**04	81%
Lovex S011	<<locked>>	61%	30980	71%	**96	100%
Lovex S020	<<locked>>	61%	24018	55%	**63	100%
Maxam CSB 1	<<locked>>	62%	19914	46%	**8	100%
Maxam CSB 2	<<locked>>	60%	20044	46%	**8	100%
Maxam CSB 3	<<locked>>	62%	22931	53%	**4	100%
Maxam CSB 4	<<locked>>	61%	24236	56%	**4	100%
Maxam CSB 5	<<locked>>	61%	27528	63%	**4	100%
[Ramshot Enforcer]*	<<locked>>	91%	28645	66%	**70	80%
Ramshot Silhouette	<<locked>>	61%	30298	70%	**78	100%
Ramshot True Blue	<<locked>>	61%	34867	80%	**60	100%
ReloadSwiss RS 12	<<locked>>	61%	27905	64%	**73	100%
ReloadSwiss RS 20	<<locked>>	61%	19261	44%	**17	100%
[ReloadSwiss RS 24]*	<<locked>>	61%	17187	40%	**10	82%
Rottweil P 801	<<locked>>	60%	30632	70%	**76	100%
Rottweil P 806	<<locked>>	61%	12908	30%	**8	90%
SNPE Vectan A0	<<locked>>	61%	19392	45%	**8	100%
SNPE Vectan BA 9	<<locked>>	61%	23685	54%	**27	100%
SNPE Vectan BA10	<<locked>>	62%	29167	67%	**4	100%
SNPE Vectan BA7 1/2	<<locked>>	61%	16070	37%	**2	94%
SNPE Vectan BA9 1/2	<<locked>>	62%	23786	55%	**33	100%
SNPE Vectan SP 2	<<locked>>	61%	21045	48%	**19	94%
[Shooters World Heavy Pistol]*	<<locked>>	76%	26252	60%	**04	81%
[Shooters World Major Pistol]*	<<locked>>	61%	19406	45%	**83	82%
Somchem MP200	<<locked>>	60%	23467	54%	**73	100%
Somchem MS200	<<locked>>	61%	21944	50%	**33	100%
Somchem S221	<<locked>>	61%	25686	59%	**68	93%
Vihtavuori 3N37	<<locked>>	60%	18362	42%	**17	97%
[Vihtavuori 3N38]*	<<locked>>	67%	15200	35%	**1	80%
[Vihtavuori N105]*	<<locked>>	71%	13169	30%	**8	81%
Vihtavuori N310	<<locked>>	61%	35636	82%	**50	100%
Vihtavuori N320	<<locked>>	61%	24685	57%	**07	100%
Vihtavuori N32C Tin Star	<<locked>>	78%	21988	51%	**9	100%
Vihtavuori N330	<<locked>>	61%	23351	54%	**43	100%
Vihtavuori N340	<<locked>>	60%	20305	47%	**14	100%
Vihtavuori N350	<<locked>>	61%	17085	39%	**8	96%
Winchester 231	<<locked>>	62%	33605	77%	**42	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