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

Recommended Powder(s): Alliant POWER PISTOL, Rottweil P 806, SNPE Vectan BA7 1/2, Somchem S221, Vihtavuori N105

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.356 \| 125gr \| H&N KS HS HP
Bullet Weight:	125gr \| 8.1g
Bullet Diameter:	0.356" \| 9.04mm
Bullet Length:	0.580" \| 14.7mm
Caliber:	.357 Maximum load data
Case Length (l3):	1.600" \| 40.6mm
Cartridge Length (C.O.L.):	1.960" \| 49.8mm
Seated Depth:	0.220" \| 5.6mm
Shank Seated Depth:	0.200" \| 5.1mm
Case Capacity:	33.6 Grains of Water \| 2.18 cm³
Primer Size:	Small Pistol (SP)
Max. allowed Pressure:	44962 psi \| 3100 bar
LID:	LID_B7449_C515
Last updated:	2025-01-01

Load data for 110 loads in caliber .357 Maximum with .356 | 125gr | H&N KS HS HP bullet and 55 powders such as Alliant POWER PISTOL, Rottweil P 806, SNPE Vectan BA7 1/2, Somchem S221, Vihtavuori N105. 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%	39494	88%	**63	100%
ADI AP 70N	<<locked>>	62%	39581	88%	**32	100%
ADI APS 350	<<locked>>	73%	40190	89%	**71	100%
ADI APS 450	<<locked>>	73%	39146	87%	**85	100%
ADI AS 30	<<locked>>	72%	38566	86%	**24	100%
ADI AS 50N	<<locked>>	69%	39697	88%	**80	100%
[Accurate 4100]*	<<locked>>	90%	40292	90%	**26	84%
Accurate No. 2	<<locked>>	68%	38595	86%	**55	100%
Accurate No. 7	<<locked>>	69%	40059	89%	**19	95%
Accurate No. 9	<<locked>>	77%	39972	89%	**99	90%
Accurate Solo 1000	<<locked>>	72%	39436	88%	**60	100%
Accurate Solo 1250	<<locked>>	75%	40074	89%	**22	100%
Accurate TCM	<<locked>>	76%	38798	86%	**86	91%
[Alliant 2400]*	<<locked>>	86%	39465	88%	**29	87%
Alliant BLUE DOT	<<locked>>	89%	39407	88%	**03	94%
Alliant BULLSEYE	<<locked>>	66%	40190	89%	**01	100%
Alliant POWER PISTOL 👍	<<locked>>	73%	40263	90%	**19	100%
Alliant UNIQUE	<<locked>>	74%	38754	86%	**81	100%
Baschieri & Pellagri 100	<<locked>>	71%	39015	87%	**57	100%
Hodgdon Clays	<<locked>>	71%	39204	87%	**65	100%
[Hodgdon LilGun]*	<<locked>>	96%	38914	87%	**55	86%
Hodgdon Universal	<<locked>>	68%	38638	86%	**19	100%
Hodgdon TrailBoss	<<locked>>	97%	19102	42%	**02	100%
Lovex D037.1	<<locked>>	69%	40059	89%	**19	95%
[Lovex D037.2]*	<<locked>>	75%	39131	87%	**93	89%
Lovex S020	<<locked>>	66%	38464	86%	**32	100%
Maxam CSB 1	<<locked>>	77%	38595	86%	**06	100%
Maxam CSB 2	<<locked>>	73%	38682	86%	**96	100%
Maxam CSB 3	<<locked>>	73%	38841	86%	**86	100%
Maxam CSB 4	<<locked>>	71%	39291	87%	**63	100%
Maxam CSB 5	<<locked>>	68%	38696	86%	**14	100%
[Ramshot Enforcer]*	<<locked>>	86%	39711	88%	**32	88%
ReloadSwiss RS 12	<<locked>>	65%	39842	89%	**90	100%
ReloadSwiss RS 14	<<locked>>	95%	16955	38%	**93	100%
ReloadSwiss RS 20	<<locked>>	75%	40016	89%	**78	100%
ReloadSwiss RS 24	<<locked>>	75%	40350	90%	**19	97%
Rottweil P 806 👍	<<locked>>	78%	39392	88%	**73	100%
SNPE Vectan A0	<<locked>>	78%	39958	89%	**62	100%
SNPE Vectan BA 9	<<locked>>	71%	40059	89%	**32	100%
SNPE Vectan BA10	<<locked>>	68%	39189	87%	**85	100%
SNPE Vectan BA7 1/2 👍	<<locked>>	81%	39088	87%	**04	100%
SNPE Vectan BA9 1/2	<<locked>>	71%	38740	86%	**12	100%
[Shooters World Heavy Pistol]*	<<locked>>	75%	39131	87%	**93	89%
Shooters World Major Pistol	<<locked>>	69%	40059	89%	**19	95%
Somchem MP200	<<locked>>	69%	40393	90%	**94	100%
Somchem MS200	<<locked>>	73%	39972	89%	**68	100%
Somchem S221 👍	<<locked>>	63%	39218	87%	**83	99%
Vihtavuori 3N37	<<locked>>	74%	39842	89%	**31	100%
Vihtavuori 3N38	<<locked>>	84%	39218	87%	**93	97%
Vihtavuori N105 👍	<<locked>>	90%	40059	89%	**32	99%
Vihtavuori N320	<<locked>>	69%	39465	88%	**76	100%
Vihtavuori N32C Tin Star	<<locked>>	94%	38914	87%	**78	100%
Vihtavuori N330	<<locked>>	70%	40219	89%	**35	100%
Vihtavuori N340	<<locked>>	73%	39856	89%	**65	100%
Vihtavuori N350	<<locked>>	77%	39726	88%	**37	100%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
ADI AP 100	<<locked>>	61%	18028	40%	**17	90%
ADI AP 70N	<<locked>>	61%	37695	84%	**06	100%
ADI APS 350	<<locked>>	61%	30632	68%	**40	100%
ADI APS 450	<<locked>>	61%	30095	67%	**57	100%
ADI AS 30	<<locked>>	61%	29225	65%	**83	100%
ADI AS 50N	<<locked>>	61%	32024	71%	**78	100%
[Accurate 4100]*	<<locked>>	85%	34098	76%	**11	80%
Accurate No. 2	<<locked>>	61%	30443	68%	**30	100%
[Accurate No. 7]*	<<locked>>	61%	29515	66%	**22	89%
[Accurate No. 9]*	<<locked>>	64%	25106	56%	**34	81%
Accurate Solo 1000	<<locked>>	61%	30023	67%	**25	100%
Accurate Solo 1250	<<locked>>	61%	27209	61%	**35	100%
[Accurate TCM]*	<<locked>>	62%	23148	51%	**85	80%
[Alliant 2400]*	<<locked>>	77%	29559	66%	**45	81%
[Alliant BLUE DOT]*	<<locked>>	67%	20450	45%	**06	81%
Alliant BULLSEYE	<<locked>>	61%	34447	77%	**26	100%
Alliant POWER PISTOL	<<locked>>	61%	27485	61%	**83	96%
Alliant UNIQUE	<<locked>>	61%	26977	60%	**01	100%
Baschieri & Pellagri 100	<<locked>>	61%	29718	66%	**32	100%
Hodgdon Clays	<<locked>>	61%	31256	70%	**60	100%
[Hodgdon LilGun]*	<<locked>>	90%	29762	66%	**04	80%
Hodgdon Universal	<<locked>>	61%	31343	70%	**17	100%
Hodgdon TrailBoss	<<locked>>	62%	8978	20%	**0	100%
[Lovex D037.1]*	<<locked>>	61%	29515	66%	**22	89%
[Lovex D037.2]*	<<locked>>	63%	24613	55%	**24	80%
Lovex S020	<<locked>>	61%	32663	73%	**57	100%
Maxam CSB 1	<<locked>>	61%	25150	56%	**93	100%
Maxam CSB 2	<<locked>>	61%	27905	62%	**39	100%
Maxam CSB 3	<<locked>>	61%	28094	62%	**29	100%
Maxam CSB 4	<<locked>>	61%	30037	67%	**39	100%
Maxam CSB 5	<<locked>>	61%	32822	73%	**29	100%
[Ramshot Enforcer]*	<<locked>>	77%	28355	63%	**26	81%
ReloadSwiss RS 12	<<locked>>	61%	35868	80%	**40	100%
ReloadSwiss RS 14	<<locked>>	60%	8021	18%	**3	100%
ReloadSwiss RS 20	<<locked>>	61%	26223	58%	**71	100%
[ReloadSwiss RS 24]*	<<locked>>	61%	24671	55%	**21	89%
Rottweil P 806	<<locked>>	61%	21248	47%	**48	97%
SNPE Vectan A0	<<locked>>	61%	25309	56%	**29	100%
SNPE Vectan BA 9	<<locked>>	61%	29849	66%	**81	100%
SNPE Vectan BA10	<<locked>>	61%	33591	75%	**06	100%
SNPE Vectan BA7 1/2	<<locked>>	61%	22191	49%	**09	98%
SNPE Vectan BA9 1/2	<<locked>>	61%	29979	67%	**81	100%
[Shooters World Heavy Pistol]*	<<locked>>	63%	24613	55%	**24	80%
[Shooters World Major Pistol]*	<<locked>>	61%	29515	66%	**22	89%
Somchem MP200	<<locked>>	61%	31749	71%	**73	100%
Somchem MS200	<<locked>>	61%	27949	62%	**88	100%
Somchem S221	<<locked>>	61%	36100	80%	**21	98%
Vihtavuori 3N37	<<locked>>	61%	25643	57%	**91	100%
[Vihtavuori 3N38]*	<<locked>>	61%	18376	41%	**53	84%
[Vihtavuori N105]*	<<locked>>	61%	14504	32%	**65	82%
Vihtavuori N320	<<locked>>	61%	31459	70%	**62	100%
Vihtavuori N32C Tin Star	<<locked>>	61%	18086	40%	**63	100%
Vihtavuori N330	<<locked>>	61%	30661	68%	**04	100%
Vihtavuori N340	<<locked>>	61%	27354	61%	**88	100%
Vihtavuori N350	<<locked>>	61%	23815	53%	**52	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