Load data for .357 Auto Magnum + .357 | 158gr | H&N HP HS

Recommended Powder(s):

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.357 \| 158gr \| H&N HP HS
Bullet Weight:	158gr \| 10.2g
Bullet Diameter:	0.357" \| 9.07mm
Bullet Length:	0.677" \| 17.2mm
Caliber:	.357 Auto Magnum load data
Case Length (l3):	1.299" \| 33.0mm
Cartridge Length (C.O.L.):	1.576" \| 40.0mm
Seated Depth:	0.400" \| 10.2mm
Shank Seated Depth:	0.380" \| 9.7mm
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_B7477_C511
Last updated:	2026-01-21

Load data for 82 loads in caliber .357 Auto Magnum with .357 | 158gr | H&N HP HS bullet and 41 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>>	80%	32967	89%	**11	100%
ADI APS 450	<<locked>>	64%	32648	88%	**52	100%
ADI AS 30	<<locked>>	63%	31807	86%	**75	100%
[Accurate 4100]*	<<locked>>	83%	32837	89%	**57	84%
Accurate No. 9	<<locked>>	70%	32474	88%	**57	90%
Accurate Solo 1000	<<locked>>	64%	33199	90%	**17	100%
Accurate Solo 1250	<<locked>>	66%	32039	87%	**57	100%
Accurate TCM	<<locked>>	70%	32503	88%	**47	91%
[Alliant 2400]*	<<locked>>	79%	33025	89%	**80	87%
Alliant BLUE DOT	<<locked>>	80%	32111	87%	**34	94%
Alliant POWER PISTOL	<<locked>>	65%	32053	87%	**30	100%
Alliant UNIQUE	<<locked>>	65%	31923	86%	**25	100%
Baschieri & Pellagri 100	<<locked>>	64%	32561	88%	**14	100%
Baschieri & Pellagri 102 Pistol	<<locked>>	80%	32358	88%	**20	100%
[Hodgdon LilGun]*	<<locked>>	91%	32474	88%	**35	87%
Hodgdon CFE Pistol	<<locked>>	63%	32213	87%	**66	100%
Hodgdon TrailBoss	<<locked>>	93%	18536	50%	**4	100%
Lovex D037.2	<<locked>>	70%	33170	90%	**67	91%
Maxam CSB 1	<<locked>>	70%	33243	90%	**63	100%
Maxam CSB 2	<<locked>>	66%	32851	89%	**53	100%
Maxam CSB 3	<<locked>>	64%	31415	85%	**20	100%
Maxam CSB 4	<<locked>>	64%	33272	90%	**27	100%
[Ramshot Enforcer]*	<<locked>>	80%	33243	90%	**93	89%
ReloadSwiss RS 14	<<locked>>	95%	17709	48%	**1	100%
ReloadSwiss RS 20	<<locked>>	67%	32648	88%	**19	100%
ReloadSwiss RS 24	<<locked>>	67%	31865	86%	**27	97%
Rottweil P 806	<<locked>>	71%	32909	89%	**37	100%
SNPE Vectan A0	<<locked>>	68%	31749	86%	**86	100%
SNPE Vectan BA 9	<<locked>>	63%	32518	88%	**66	100%
[SNPE Vectan BA6 1/2]*	<<locked>>	97%	23946	65%	**09	85%
SNPE Vectan BA7 1/2	<<locked>>	74%	33243	90%	**68	100%
SNPE Vectan BA9 1/2	<<locked>>	63%	32343	87%	**63	100%
Shooters World Heavy Pistol	<<locked>>	70%	33170	90%	**67	91%
Somchem MS200	<<locked>>	65%	33040	89%	**06	100%
Vihtavuori 3N37	<<locked>>	67%	32445	88%	**71	100%
Vihtavuori 3N38	<<locked>>	76%	31821	86%	**14	97%
Vihtavuori N105	<<locked>>	82%	32198	87%	**63	100%
[Vihtavuori N110]*	<<locked>>	96%	29341	79%	**44	86%
Vihtavuori N32C Tin Star	<<locked>>	83%	32039	87%	**48	100%
Vihtavuori N340	<<locked>>	65%	32721	88%	**12	100%
Vihtavuori N350	<<locked>>	69%	31937	86%	**62	100%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
ADI AP 100	<<locked>>	61%	18826	51%	**32	95%
ADI APS 450	<<locked>>	61%	30705	83%	**22	100%
ADI AS 30	<<locked>>	61%	29863	81%	**45	100%
[Accurate 4100]*	<<locked>>	79%	28500	77%	**91	81%
[Accurate No. 9]*	<<locked>>	61%	23018	62%	**66	83%
Accurate Solo 1000	<<locked>>	61%	31198	84%	**91	100%
Accurate Solo 1250	<<locked>>	61%	28123	76%	**04	100%
[Accurate TCM]*	<<locked>>	61%	23148	63%	**63	85%
[Alliant 2400]*	<<locked>>	70%	23612	64%	**89	80%
[Alliant BLUE DOT]*	<<locked>>	61%	17260	47%	**15	82%
Alliant POWER PISTOL	<<locked>>	61%	28674	78%	**71	99%
Alliant UNIQUE	<<locked>>	61%	28253	76%	**70	100%
Baschieri & Pellagri 100	<<locked>>	61%	30530	83%	**88	100%
Baschieri & Pellagri 102 Pistol	<<locked>>	61%	19827	54%	**40	100%
[Hodgdon LilGun]*	<<locked>>	83%	24221	65%	**62	80%
Hodgdon CFE Pistol	<<locked>>	61%	30342	82%	**43	100%
Hodgdon TrailBoss	<<locked>>	85%	15969	43%	**2	100%
[Lovex D037.2]*	<<locked>>	61%	23583	64%	**83	84%
Maxam CSB 1	<<locked>>	61%	25918	70%	**65	100%
Maxam CSB 2	<<locked>>	61%	28993	78%	**04	100%
Maxam CSB 3	<<locked>>	61%	29472	80%	**94	100%
Maxam CSB 4	<<locked>>	61%	31256	84%	**98	100%
[Ramshot Enforcer]*	<<locked>>	70%	22597	61%	**86	81%
ReloadSwiss RS 14	<<locked>>	87%	15360	42%	**2	100%
ReloadSwiss RS 20	<<locked>>	61%	27166	73%	**40	100%
ReloadSwiss RS 24	<<locked>>	61%	25904	70%	**22	94%
Rottweil P 806	<<locked>>	61%	22060	60%	**53	99%
SNPE Vectan A0	<<locked>>	61%	26542	72%	**11	100%
SNPE Vectan BA 9	<<locked>>	61%	30705	83%	**40	100%
[SNPE Vectan BA6 1/2]*	<<locked>>	92%	20798	56%	**37	81%
SNPE Vectan BA7 1/2	<<locked>>	61%	22727	61%	**94	100%
SNPE Vectan BA9 1/2	<<locked>>	61%	30472	82%	**40	100%
[Shooters World Heavy Pistol]*	<<locked>>	61%	23583	64%	**83	84%
Somchem MS200	<<locked>>	61%	29399	79%	**60	100%
Vihtavuori 3N37	<<locked>>	61%	27340	74%	**93	100%
Vihtavuori 3N38	<<locked>>	61%	19406	52%	**68	90%
Vihtavuori N105	<<locked>>	61%	15447	42%	**12	90%
[Vihtavuori N110]*	<<locked>>	88%	22756	62%	**09	80%
Vihtavuori N32C Tin Star	<<locked>>	62%	19203	52%	**5	100%
Vihtavuori N340	<<locked>>	61%	29022	78%	**53	100%
Vihtavuori N350	<<locked>>	61%	25106	68%	**53	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