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

Recommended Powder(s):

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 Maximum load data
Case Length (l3):	1.600" \| 40.6mm
Cartridge Length (C.O.L.):	1.960" \| 49.8mm
Seated Depth:	0.170" \| 4.3mm
Shank Seated Depth:	0.170" \| 4.3mm
Case Capacity:	33.6 Grains of Water \| 2.18 cm³
Primer Size:	Small Pistol (SP)
Max. allowed Pressure:	44962 psi \| 3100 bar
LID:	LID_B7450_C515
Last updated:	2025-01-01

Load data for 106 loads in caliber .357 Maximum with .356 | 125gr | H&N KS KB bullet and 53 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>>	88%	39740	88%	**70	100%
ADI APS 350	<<locked>>	73%	40422	90%	**85	100%
ADI APS 450	<<locked>>	72%	39088	87%	**94	100%
ADI AS 30	<<locked>>	72%	38769	86%	**34	100%
ADI AS 50N	<<locked>>	69%	39769	88%	**83	100%
[Accurate 4100]*	<<locked>>	88%	40364	90%	**09	84%
Accurate No. 2	<<locked>>	68%	39537	88%	**68	100%
Accurate No. 7	<<locked>>	67%	39175	87%	**19	95%
[Accurate No. 9]*	<<locked>>	75%	38812	86%	**90	89%
Accurate Solo 1000	<<locked>>	71%	39378	88%	**63	100%
Accurate Solo 1250	<<locked>>	74%	39929	89%	**19	100%
Accurate TCM	<<locked>>	75%	39436	88%	**99	91%
[Alliant 2400]*	<<locked>>	85%	39247	87%	**26	87%
Alliant BLUE DOT	<<locked>>	88%	39349	88%	**13	94%
Alliant BULLSEYE	<<locked>>	65%	39189	87%	**91	100%
Alliant POWER PISTOL 👍	<<locked>>	71%	38972	87%	**86	99%
Alliant UNIQUE	<<locked>>	73%	39581	88%	**04	100%
Baschieri & Pellagri 100	<<locked>>	71%	38986	87%	**60	100%
Hodgdon Clays	<<locked>>	70%	39349	88%	**78	100%
[Hodgdon LilGun]*	<<locked>>	95%	38870	86%	**78	87%
Hodgdon Universal	<<locked>>	68%	39595	88%	**32	100%
Hodgdon TrailBoss	<<locked>>	95%	18855	42%	**06	100%
Lovex D037.1	<<locked>>	67%	39175	87%	**19	95%
[Lovex D037.2]*	<<locked>>	74%	38812	86%	**90	89%
Lovex S020	<<locked>>	67%	40422	90%	**68	100%
Maxam CSB 1	<<locked>>	78%	40292	90%	**26	100%
Maxam CSB 2	<<locked>>	72%	38711	86%	**96	100%
Maxam CSB 3	<<locked>>	73%	39769	88%	**99	100%
Maxam CSB 4	<<locked>>	71%	39378	88%	**67	100%
Maxam CSB 5	<<locked>>	67%	38957	87%	**11	100%
[Ramshot Enforcer]*	<<locked>>	85%	40016	89%	**26	88%
ReloadSwiss RS 12	<<locked>>	63%	38885	86%	**86	100%
ReloadSwiss RS 14	<<locked>>	95%	17289	38%	**06	100%
ReloadSwiss RS 20	<<locked>>	73%	38914	87%	**75	100%
ReloadSwiss RS 24	<<locked>>	74%	39682	88%	**09	97%
Rottweil P 806 👍	<<locked>>	77%	40016	89%	**77	100%
SNPE Vectan A0	<<locked>>	76%	38769	86%	**49	100%
SNPE Vectan BA 9	<<locked>>	69%	38798	86%	**19	100%
SNPE Vectan BA10	<<locked>>	67%	39073	87%	**94	100%
SNPE Vectan BA7 1/2 👍	<<locked>>	81%	40219	89%	**34	100%
SNPE Vectan BA9 1/2	<<locked>>	71%	40422	90%	**45	100%
[Shooters World Heavy Pistol]*	<<locked>>	74%	38812	86%	**90	89%
Shooters World Major Pistol	<<locked>>	67%	39175	87%	**19	95%
Somchem MP200	<<locked>>	67%	39218	87%	**91	100%
Somchem MS200	<<locked>>	72%	38870	86%	**52	100%
Vihtavuori 3N37	<<locked>>	74%	40437	90%	**40	100%
Vihtavuori 3N38	<<locked>>	83%	39334	87%	**86	97%
Vihtavuori N105	<<locked>>	89%	40074	89%	**42	100%
Vihtavuori N320	<<locked>>	67%	38537	86%	**67	100%
Vihtavuori N32C Tin Star	<<locked>>	95%	40408	90%	**04	100%
Vihtavuori N330	<<locked>>	68%	39146	87%	**19	100%
Vihtavuori N340	<<locked>>	71%	38740	86%	**62	100%
Vihtavuori N350	<<locked>>	77%	40234	89%	**31	100%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
ADI AP 100	<<locked>>	61%	18652	41%	**40	91%
ADI APS 350	<<locked>>	61%	31053	69%	**50	100%
ADI APS 450	<<locked>>	61%	30385	68%	**70	100%
ADI AS 30	<<locked>>	61%	29646	66%	**99	100%
ADI AS 50N	<<locked>>	61%	32372	72%	**78	100%
[Accurate 4100]*	<<locked>>	84%	34505	77%	**08	80%
Accurate No. 2	<<locked>>	61%	31517	70%	**50	100%
Accurate No. 7	<<locked>>	61%	30443	68%	**52	90%
[Accurate No. 9]*	<<locked>>	64%	25759	57%	**37	81%
Accurate Solo 1000	<<locked>>	61%	30414	68%	**42	100%
Accurate Solo 1250	<<locked>>	61%	27543	61%	**45	100%
[Accurate TCM]*	<<locked>>	61%	23018	51%	**75	80%
[Alliant 2400]*	<<locked>>	76%	29689	66%	**32	80%
[Alliant BLUE DOT]*	<<locked>>	67%	20856	46%	**19	81%
Alliant BULLSEYE	<<locked>>	61%	35476	79%	**42	100%
Alliant POWER PISTOL	<<locked>>	61%	28210	63%	**93	96%
Alliant UNIQUE	<<locked>>	61%	27920	62%	**11	100%
Baschieri & Pellagri 100	<<locked>>	61%	29907	67%	**42	100%
Hodgdon Clays	<<locked>>	61%	31734	71%	**73	100%
[Hodgdon LilGun]*	<<locked>>	88%	30110	67%	**14	81%
Hodgdon Universal	<<locked>>	61%	32416	72%	**40	100%
Hodgdon TrailBoss	<<locked>>	61%	9079	20%	**3	100%
Lovex D037.1	<<locked>>	61%	30443	68%	**52	90%
[Lovex D037.2]*	<<locked>>	63%	25759	57%	**37	81%
Lovex S020	<<locked>>	61%	32764	73%	**57	100%
Maxam CSB 1	<<locked>>	61%	25483	57%	**06	100%
Maxam CSB 2	<<locked>>	61%	28282	63%	**48	100%
Maxam CSB 3	<<locked>>	61%	29182	65%	**45	100%
Maxam CSB 4	<<locked>>	61%	30342	67%	**39	100%
Maxam CSB 5	<<locked>>	61%	33199	74%	**42	100%
[Ramshot Enforcer]*	<<locked>>	75%	27702	62%	**09	80%
ReloadSwiss RS 12	<<locked>>	61%	37028	82%	**60	100%
ReloadSwiss RS 14	<<locked>>	61%	8470	19%	**0	100%
ReloadSwiss RS 20	<<locked>>	61%	27253	61%	**94	100%
ReloadSwiss RS 24	<<locked>>	61%	25643	57%	**47	90%
Rottweil P 806	<<locked>>	61%	22176	49%	**68	97%
SNPE Vectan A0	<<locked>>	61%	26237	58%	**52	100%
SNPE Vectan BA 9	<<locked>>	61%	30661	68%	**94	100%
SNPE Vectan BA10	<<locked>>	61%	33765	75%	**19	100%
SNPE Vectan BA7 1/2	<<locked>>	61%	22278	50%	**09	98%
SNPE Vectan BA9 1/2	<<locked>>	61%	30153	67%	**01	100%
[Shooters World Heavy Pistol]*	<<locked>>	63%	25759	57%	**37	81%
Shooters World Major Pistol	<<locked>>	61%	30443	68%	**52	90%
Somchem MP200	<<locked>>	61%	32561	72%	**83	100%
Somchem MS200	<<locked>>	61%	28921	64%	**11	100%
Vihtavuori 3N37	<<locked>>	61%	26353	59%	**21	100%
[Vihtavuori 3N38]*	<<locked>>	61%	18869	42%	**60	84%
[Vihtavuori N105]*	<<locked>>	61%	15069	34%	**78	83%
Vihtavuori N320	<<locked>>	61%	32706	73%	**78	100%
Vihtavuori N32C Tin Star	<<locked>>	61%	18492	41%	**73	100%
Vihtavuori N330	<<locked>>	61%	31720	71%	**24	100%
Vihtavuori N340	<<locked>>	61%	28384	63%	**98	100%
Vihtavuori N350	<<locked>>	61%	24598	55%	**85	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