Load data for .357 Magnum + .356 | 125gr | H&N RN KB

Recommended Powder(s):

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.356 \| 125gr \| H&N RN KB
Bullet Weight:	125gr \| 8.1g
Bullet Diameter:	0.356" \| 9.04mm
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_B7453_C513
Last updated:	2026-02-13

Load data for 140 loads in caliber .357 Magnum with .356 | 125gr | H&N RN KB bullet and 70 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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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>>	96%	33388	77%	**76	97%
ADI AP 70N	<<locked>>	72%	39102	90%	**50	100%
ADI APS 350	<<locked>>	77%	37956	87%	**40	100%
ADI APS 450	<<locked>>	80%	38798	89%	**80	100%
ADI AS 30	<<locked>>	80%	37797	87%	**19	100%
ADI AS 50N	<<locked>>	78%	38769	89%	**78	100%
Accurate No. 2	<<locked>>	77%	37840	87%	**50	100%
Accurate No. 5	<<locked>>	64%	39015	90%	**55	99%
Accurate No. 7	<<locked>>	80%	38450	88%	**11	91%
[Accurate No. 9]*	<<locked>>	88%	38043	87%	**72	84%
Accurate Solo 1000	<<locked>>	80%	38754	89%	**62	100%
Accurate Solo 1250	<<locked>>	85%	39131	90%	**21	100%
[Accurate TCM]*	<<locked>>	89%	39160	90%	**94	87%
Alliant BE-86	<<locked>>	83%	38914	89%	**04	100%
[Alliant BLUE DOT]*	<<locked>>	96%	32126	74%	**96	87%
Alliant BULLSEYE	<<locked>>	74%	38043	87%	**83	100%
Alliant Herco	<<locked>>	96%	34809	80%	**50	100%
Alliant POWER PISTOL	<<locked>>	84%	38899	89%	**11	98%
Alliant RED DOT	<<locked>>	83%	38479	88%	**45	100%
Alliant Sport Pistol	<<locked>>	69%	37956	87%	**96	100%
Alliant UNIQUE	<<locked>>	85%	38203	88%	**03	100%
Baschieri & Pellagri 100	<<locked>>	80%	38406	88%	**58	100%
Baschieri & Pellagri 102 Pistol	<<locked>>	96%	35186	81%	**35	100%
Baschieri & Pellagri 103 Pistol	<<locked>>	76%	38624	89%	**85	100%
Hodgdon Clays	<<locked>>	77%	38798	89%	**57	100%
Hodgdon HS-6 👍	<<locked>>	70%	39059	90%	**42	100%
Hodgdon Longshot	<<locked>>	66%	37855	87%	**16	100%
Hodgdon Universal	<<locked>>	79%	39102	90%	**50	100%
Hodgdon CFE Pistol	<<locked>>	80%	38435	88%	**30	100%
Hodgdon TrailBoss	<<locked>>	95%	13750	32%	**5	100%
Lovex D036	<<locked>>	64%	38957	90%	**55	99%
Lovex D037.1	<<locked>>	80%	38450	88%	**11	91%
[Lovex D037.2]*	<<locked>>	87%	38043	87%	**72	84%
Lovex S011	<<locked>>	68%	37608	86%	**75	100%
Lovex S020	<<locked>>	76%	37579	86%	**47	100%
Maxam CSB 1	<<locked>>	88%	37942	87%	**04	100%
Maxam CSB 2	<<locked>>	85%	38986	90%	**21	100%
Maxam CSB 3	<<locked>>	84%	39001	90%	**91	100%
Maxam CSB 4	<<locked>>	80%	38595	89%	**65	100%
Maxam CSB 5	<<locked>>	76%	39117	90%	**22	100%
Ramshot Silhouette	<<locked>>	69%	38029	87%	**96	100%
Ramshot True Blue	<<locked>>	65%	38609	89%	**19	100%
ReloadSwiss RS 12	<<locked>>	73%	37913	87%	**98	100%
ReloadSwiss RS 14	<<locked>>	96%	12386	28%	**8	100%
ReloadSwiss RS 20	<<locked>>	86%	38305	88%	**83	100%
ReloadSwiss RS 24	<<locked>>	86%	38334	88%	**94	93%
Rottweil P 801	<<locked>>	69%	37797	87%	**62	100%
Rottweil P 806 👍	<<locked>>	92%	39117	90%	**24	100%
SNPE Vectan A0	<<locked>>	87%	37768	87%	**40	100%
SNPE Vectan BA 9	<<locked>>	79%	38130	88%	**11	100%
SNPE Vectan BA10	<<locked>>	74%	38783	89%	**80	100%
SNPE Vectan BA7 1/2 👍	<<locked>>	93%	38348	88%	**12	100%
SNPE Vectan BA9 1/2	<<locked>>	80%	38101	88%	**27	100%
SNPE Vectan SP 2	<<locked>>	80%	38479	88%	**08	99%
Shooters World Auto Pistol	<<locked>>	64%	38957	90%	**55	99%
[Shooters World Heavy Pistol]*	<<locked>>	87%	38043	87%	**72	84%
Shooters World Major Pistol	<<locked>>	80%	38450	88%	**11	91%
Somchem MP200	<<locked>>	78%	38609	89%	**93	100%
Somchem MS200	<<locked>>	82%	37797	87%	**53	100%
Somchem S221	<<locked>>	73%	38682	89%	**75	96%
Vihtavuori 3N37	<<locked>>	86%	38638	89%	**35	100%
Vihtavuori 3N38	<<locked>>	96%	36492	84%	**42	93%
Vihtavuori N105	<<locked>>	96%	28645	66%	**86	94%
Vihtavuori N310	<<locked>>	65%	38522	89%	**80	100%
Vihtavuori N320	<<locked>>	77%	38159	88%	**68	100%
Vihtavuori N32C Tin Star	<<locked>>	96%	31937	73%	**17	100%
Vihtavuori N330	<<locked>>	80%	38870	89%	**37	100%
Vihtavuori N340	<<locked>>	83%	37869	87%	**57	100%
Vihtavuori N350	<<locked>>	88%	37927	87%	**19	100%
Winchester 231	<<locked>>	67%	38667	89%	**14	100%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AP 100]*	<<locked>>	62%	12836	29%	**07	80%
ADI AP 70N	<<locked>>	61%	28471	65%	**06	100%
ADI APS 350	<<locked>>	61%	26513	61%	**93	100%
ADI APS 450	<<locked>>	61%	25411	58%	**06	100%
ADI AS 30	<<locked>>	60%	23018	53%	**19	100%
ADI AS 50N	<<locked>>	62%	25483	59%	**98	100%
Accurate No. 2	<<locked>>	61%	22843	53%	**20	99%
Accurate No. 5	<<locked>>	61%	35128	81%	**09	99%
[Accurate No. 7]*	<<locked>>	65%	21611	50%	**99	80%
[Accurate No. 9]*	<<locked>>	82%	30516	70%	**53	80%
Accurate Solo 1000	<<locked>>	61%	24134	55%	**61	100%
Accurate Solo 1250	<<locked>>	62%	20233	46%	**52	100%
[Accurate TCM]*	<<locked>>	80%	28326	65%	**17	80%
Alliant BE-86	<<locked>>	61%	20581	47%	**52	100%
[Alliant BLUE DOT]*	<<locked>>	85%	23250	53%	**19	80%
Alliant BULLSEYE	<<locked>>	61%	26353	61%	**09	100%
Alliant Herco	<<locked>>	62%	14185	33%	**50	97%
[Alliant POWER PISTOL]*	<<locked>>	61%	18608	43%	**11	87%
Alliant RED DOT	<<locked>>	61%	22089	51%	**22	100%
Alliant Sport Pistol	<<locked>>	61%	30081	69%	**75	100%
Alliant UNIQUE	<<locked>>	61%	19885	46%	**94	100%
Baschieri & Pellagri 100	<<locked>>	62%	22829	52%	**55	100%
Baschieri & Pellagri 102 Pistol	<<locked>>	61%	13706	31%	**8	100%
Baschieri & Pellagri 103 Pistol	<<locked>>	61%	24033	55%	**94	100%
Hodgdon Clays	<<locked>>	61%	26890	62%	**12	100%
Hodgdon HS-6	<<locked>>	61%	28848	66%	**81	98%
Hodgdon Longshot	<<locked>>	61%	32024	74%	**30	100%
Hodgdon Universal	<<locked>>	62%	23989	55%	**30	100%
Hodgdon CFE Pistol	<<locked>>	61%	22307	51%	**98	100%
Hodgdon TrailBoss	<<locked>>	78%	9718	22%	**3	100%
Lovex D036	<<locked>>	61%	35070	81%	**06	99%
[Lovex D037.1]*	<<locked>>	65%	21611	50%	**99	80%
[Lovex D037.2]*	<<locked>>	81%	30516	70%	**53	80%
Lovex S011	<<locked>>	61%	30530	70%	**86	100%
Lovex S020	<<locked>>	61%	23366	54%	**40	100%
Maxam CSB 1	<<locked>>	61%	18362	42%	**09	100%
Maxam CSB 2	<<locked>>	60%	19276	44%	**38	100%
Maxam CSB 3	<<locked>>	61%	21379	49%	**48	100%
Maxam CSB 4	<<locked>>	62%	23902	55%	**68	100%
Maxam CSB 5	<<locked>>	61%	26237	60%	**58	100%
Ramshot Silhouette	<<locked>>	61%	28500	65%	**58	100%
Ramshot True Blue	<<locked>>	61%	33620	77%	**57	100%
ReloadSwiss RS 12	<<locked>>	61%	26078	60%	**43	100%
ReloadSwiss RS 14	<<locked>>	80%	8876	20%	**3	100%
ReloadSwiss RS 20	<<locked>>	61%	17854	41%	**58	100%
[ReloadSwiss RS 24]*	<<locked>>	65%	19203	44%	**27	81%
Rottweil P 801	<<locked>>	61%	29907	69%	**60	100%
[Rottweil P 806]*	<<locked>>	61%	12227	28%	**76	85%
SNPE Vectan A0	<<locked>>	60%	18420	42%	**22	99%
SNPE Vectan BA 9	<<locked>>	61%	23061	53%	**04	100%
SNPE Vectan BA10	<<locked>>	61%	27920	64%	**45	100%
SNPE Vectan BA7 1/2	<<locked>>	60%	15316	35%	**76	91%
SNPE Vectan BA9 1/2	<<locked>>	61%	22394	51%	**98	100%
SNPE Vectan SP 2	<<locked>>	61%	20378	47%	**73	91%
Shooters World Auto Pistol	<<locked>>	61%	35070	81%	**06	99%
[Shooters World Heavy Pistol]*	<<locked>>	81%	30516	70%	**53	80%
[Shooters World Major Pistol]*	<<locked>>	65%	21611	50%	**99	80%
Somchem MP200	<<locked>>	62%	23453	54%	**63	100%
Somchem MS200	<<locked>>	61%	20697	48%	**81	100%
[Somchem S221]*	<<locked>>	61%	24468	56%	**25	89%
Vihtavuori 3N37	<<locked>>	61%	17970	41%	**68	94%
[Vihtavuori 3N38]*	<<locked>>	74%	18463	42%	**04	81%
[Vihtavuori N105]*	<<locked>>	77%	15302	35%	**65	80%
Vihtavuori N310	<<locked>>	62%	35157	81%	**40	100%
Vihtavuori N320	<<locked>>	61%	24091	55%	**84	100%
Vihtavuori N32C Tin Star	<<locked>>	61%	13227	30%	**2	100%
Vihtavuori N330	<<locked>>	61%	21843	50%	**98	100%
Vihtavuori N340	<<locked>>	61%	20088	46%	**81	100%
Vihtavuori N350	<<locked>>	61%	16186	37%	**25	93%
Winchester 231	<<locked>>	61%	31836	73%	**22	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