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

Recommended Powder(s): Rottweil P 806, SNPE Vectan BA7 1/2

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.356 \| 125gr \| H&N KS KB
Bullet Weight:	125gr \| 8.1g
Bullet Diameter:	0.356" \| 9.04mm
Bullet Length:	0.530" \| 13.5mm
Caliber:	.357 Auto Magnum load data
Case Length (l3):	1.299" \| 33.0mm
Cartridge Length (C.O.L.):	1.576" \| 40.0mm
Seated Depth:	0.253" \| 6.4mm
Shank Seated Depth:	0.253" \| 6.4mm
Case Capacity:	35.0 Grains of Water \| 2.27 cm³
Primer Size:	Small Pistol Magnum (SPM)
Max. allowed Pressure:	36985 psi \| 2550 bar
LID:	LID_B7450_C511
Last updated:	2025-01-01

Load data for 92 loads in caliber .357 Auto Magnum with .356 | 125gr | H&N KS KB bullet and 46 powders such as Rottweil P 806, SNPE Vectan BA7 1/2. 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>>	81%	32126	87%	**88	99%
ADI APS 350	<<locked>>	64%	32518	88%	**99	100%
ADI APS 450	<<locked>>	65%	32590	88%	**35	100%
ADI AS 30	<<locked>>	66%	32634	88%	**75	100%
Accurate No. 2	<<locked>>	63%	31850	86%	**06	100%
Accurate No. 7	<<locked>>	64%	33170	90%	**57	92%
[Accurate No. 9]*	<<locked>>	72%	33098	90%	**44	87%
Accurate Solo 1000	<<locked>>	63%	31633	86%	**88	100%
Accurate Solo 1250	<<locked>>	68%	32851	89%	**73	100%
[Accurate TCM]*	<<locked>>	71%	32256	87%	**31	88%
[Alliant 2400]*	<<locked>>	81%	32140	87%	**37	83%
Alliant BLUE DOT	<<locked>>	83%	32256	87%	**40	91%
Alliant POWER PISTOL	<<locked>>	67%	32590	88%	**47	98%
Alliant UNIQUE	<<locked>>	68%	32822	89%	**39	100%
Baschieri & Pellagri 100	<<locked>>	65%	31995	87%	**04	100%
Hodgdon Clays	<<locked>>	64%	33214	90%	**22	100%
[Hodgdon LilGun]*	<<locked>>	93%	33185	90%	**42	84%
Hodgdon Universal	<<locked>>	63%	32706	88%	**83	100%
Hodgdon TrailBoss	<<locked>>	95%	18420	50%	**25	100%
Lovex D037.1	<<locked>>	64%	33170	90%	**57	92%
[Lovex D037.2]*	<<locked>>	71%	32387	88%	**34	86%
Maxam CSB 1	<<locked>>	71%	32764	89%	**63	100%
Maxam CSB 2	<<locked>>	67%	32576	88%	**50	100%
Maxam CSB 3	<<locked>>	67%	32851	89%	**37	100%
Maxam CSB 4	<<locked>>	65%	33243	90%	**27	100%
[Ramshot Enforcer]*	<<locked>>	82%	32561	88%	**60	84%
ReloadSwiss RS 14	<<locked>>	95%	16795	45%	**25	100%
ReloadSwiss RS 20	<<locked>>	68%	32053	87%	**22	100%
ReloadSwiss RS 24	<<locked>>	69%	32184	87%	**27	94%
Rottweil P 806 👍	<<locked>>	74%	33243	90%	**37	100%
SNPE Vectan A0	<<locked>>	70%	32489	88%	**96	100%
SNPE Vectan BA 9	<<locked>>	64%	32605	88%	**67	100%
SNPE Vectan BA7 1/2 👍	<<locked>>	74%	31995	87%	**52	100%
SNPE Vectan BA9 1/2	<<locked>>	65%	32880	89%	**83	100%
[Shooters World Heavy Pistol]*	<<locked>>	71%	32387	88%	**34	86%
Shooters World Major Pistol	<<locked>>	64%	33170	90%	**57	92%
Somchem MP200	<<locked>>	63%	32793	89%	**42	100%
Somchem MS200	<<locked>>	66%	32329	87%	**12	100%
Vihtavuori 3N37	<<locked>>	69%	32982	89%	**75	100%
Vihtavuori 3N38	<<locked>>	80%	33272	90%	**44	95%
Vihtavuori N105	<<locked>>	85%	33141	90%	**86	98%
Vihtavuori N320	<<locked>>	63%	33040	89%	**27	100%
Vihtavuori N32C Tin Star	<<locked>>	84%	31734	86%	**29	100%
Vihtavuori N330	<<locked>>	63%	32024	87%	**63	100%
Vihtavuori N340	<<locked>>	66%	31807	86%	**99	100%
Vihtavuori N350	<<locked>>	71%	31850	86%	**65	100%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
ADI AP 100	<<locked>>	61%	17695	48%	**50	90%
ADI APS 350	<<locked>>	61%	30632	83%	**70	100%
ADI APS 450	<<locked>>	60%	29138	79%	**80	100%
ADI AS 30	<<locked>>	61%	29080	79%	**22	100%
Accurate No. 2	<<locked>>	61%	29994	81%	**70	100%
Accurate No. 7	<<locked>>	61%	29124	79%	**85	90%
[Accurate No. 9]*	<<locked>>	64%	24642	67%	**67	80%
Accurate Solo 1000	<<locked>>	61%	29849	81%	**68	100%
Accurate Solo 1250	<<locked>>	61%	26223	71%	**58	100%
[Accurate TCM]*	<<locked>>	62%	22872	62%	**21	80%
[Alliant 2400]*	<<locked>>	77%	28355	77%	**68	80%
[Alliant BLUE DOT]*	<<locked>>	67%	19827	54%	**45	81%
Alliant POWER PISTOL	<<locked>>	61%	26919	73%	**26	96%
Alliant UNIQUE	<<locked>>	61%	26614	72%	**30	100%
Baschieri & Pellagri 100	<<locked>>	61%	28645	77%	**55	100%
Hodgdon Clays	<<locked>>	61%	31357	85%	**93	100%
[Hodgdon LilGun]*	<<locked>>	90%	29283	79%	**57	80%
Hodgdon Universal	<<locked>>	61%	30980	84%	**50	100%
Hodgdon TrailBoss	<<locked>>	61%	8673	23%	**3	100%
Lovex D037.1	<<locked>>	61%	29124	79%	**85	90%
[Lovex D037.2]*	<<locked>>	64%	25121	68%	**80	81%
Maxam CSB 1	<<locked>>	61%	24918	67%	**32	100%
Maxam CSB 2	<<locked>>	61%	27557	75%	**81	100%
Maxam CSB 3	<<locked>>	61%	27862	75%	**58	100%
Maxam CSB 4	<<locked>>	61%	29776	80%	**68	100%
[Ramshot Enforcer]*	<<locked>>	77%	27586	75%	**52	80%
ReloadSwiss RS 14	<<locked>>	61%	8021	22%	**6	100%
ReloadSwiss RS 20	<<locked>>	61%	25773	70%	**14	100%
[ReloadSwiss RS 24]*	<<locked>>	61%	24482	66%	**63	89%
Rottweil P 806	<<locked>>	61%	20407	55%	**71	96%
SNPE Vectan A0	<<locked>>	61%	24976	68%	**68	100%
SNPE Vectan BA 9	<<locked>>	61%	29428	80%	**21	100%
SNPE Vectan BA7 1/2	<<locked>>	61%	21756	59%	**42	98%
SNPE Vectan BA9 1/2	<<locked>>	61%	29602	80%	**24	100%
[Shooters World Heavy Pistol]*	<<locked>>	64%	25121	68%	**80	81%
Shooters World Major Pistol	<<locked>>	61%	29124	79%	**85	90%
Somchem MP200	<<locked>>	61%	31183	84%	**12	100%
Somchem MS200	<<locked>>	61%	27572	75%	**30	100%
Vihtavuori 3N37	<<locked>>	61%	25701	69%	**47	100%
[Vihtavuori 3N38]*	<<locked>>	61%	17840	48%	**80	84%
[Vihtavuori N105]*	<<locked>>	61%	14011	38%	**01	82%
Vihtavuori N320	<<locked>>	61%	31198	84%	**94	100%
Vihtavuori N32C Tin Star	<<locked>>	61%	17999	49%	**96	100%
Vihtavuori N330	<<locked>>	61%	30226	82%	**44	100%
Vihtavuori N340	<<locked>>	61%	26934	73%	**17	100%
Vihtavuori N350	<<locked>>	61%	23322	63%	**88	99%

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