Load data for .357 Auto Magnum + .356 | 121gr | Hornady HAP

Recommended Powder(s):

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.356 \| 121gr \| Hornady HAP
Manufacturer SKU:	35530B
Bullet Weight:	121gr \| 7.8g
Bullet Diameter:	0.356" \| 9.04mm
Bullet Length:	0.612" \| 15.5mm
Caliber:	.357 Auto Magnum load data
Case Length (l3):	1.299" \| 33.0mm
Cartridge Length (C.O.L.):	1.576" \| 40.0mm
Seated Depth:	0.335" \| 8.5mm
Shank Seated Depth:	0.335" \| 8.5mm
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_B2775_C511
Last updated:	2025-01-01

Load data for 92 loads in caliber .357 Auto Magnum with .356 | 121gr | Hornady HAP bullet and 46 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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Min z (%)
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Max FR*
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Barrel Length (cm)
Safety Buffer (%)
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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.

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>>	83%	32547	88%	**08	98%
ADI APS 350	<<locked>>	63%	31981	86%	**96	100%
ADI APS 450	<<locked>>	66%	33199	90%	**48	100%
ADI AS 30	<<locked>>	66%	32590	88%	**75	100%
ADI AS 50N	<<locked>>	63%	32764	89%	**37	100%
Accurate No. 2	<<locked>>	65%	32996	89%	**32	100%
Accurate No. 7	<<locked>>	65%	33127	90%	**67	91%
[Accurate No. 9]*	<<locked>>	73%	32619	88%	**37	85%
Accurate Solo 1000	<<locked>>	66%	33112	90%	**21	100%
Accurate Solo 1250	<<locked>>	70%	33054	89%	**83	100%
[Accurate TCM]*	<<locked>>	73%	33069	89%	**60	87%
Alliant BLUE DOT	<<locked>>	84%	32663	88%	**47	90%
Alliant POWER PISTOL	<<locked>>	67%	32039	87%	**31	97%
Alliant UNIQUE	<<locked>>	68%	32677	88%	**49	100%
Baschieri & Pellagri 100	<<locked>>	65%	32213	87%	**11	100%
Hodgdon Clays	<<locked>>	63%	32547	88%	**19	100%
Hodgdon Universal	<<locked>>	63%	32329	87%	**83	100%
Hodgdon TrailBoss	<<locked>>	95%	18623	50%	**29	100%
Lovex D037.1	<<locked>>	65%	33127	90%	**67	91%
[Lovex D037.2]*	<<locked>>	72%	32024	87%	**27	85%
Lovex S020	<<locked>>	62%	32576	88%	**03	100%
Maxam CSB 1	<<locked>>	71%	32198	87%	**60	100%
Maxam CSB 2	<<locked>>	67%	32213	87%	**60	100%
Maxam CSB 3	<<locked>>	68%	33025	89%	**53	100%
Maxam CSB 4	<<locked>>	66%	33243	90%	**37	100%
[Ramshot Enforcer]*	<<locked>>	83%	32343	87%	**57	83%
ReloadSwiss RS 14	<<locked>>	93%	16839	46%	**25	100%
ReloadSwiss RS 20	<<locked>>	69%	31705	86%	**19	100%
ReloadSwiss RS 24	<<locked>>	71%	33011	89%	**50	94%
Rottweil P 806 👍	<<locked>>	74%	32445	88%	**40	100%
SNPE Vectan A0	<<locked>>	71%	31995	87%	**99	100%
SNPE Vectan BA 9	<<locked>>	64%	32169	87%	**70	100%
SNPE Vectan BA7 1/2 👍	<<locked>>	76%	33127	90%	**81	100%
SNPE Vectan BA9 1/2	<<locked>>	65%	32489	88%	**80	100%
[Shooters World Heavy Pistol]*	<<locked>>	72%	32024	87%	**27	85%
Shooters World Major Pistol	<<locked>>	65%	33127	90%	**67	91%
Somchem MP200	<<locked>>	62%	31763	86%	**26	100%
Somchem MS200	<<locked>>	67%	31966	86%	**12	100%
Vihtavuori 3N37	<<locked>>	69%	32474	88%	**81	100%
Vihtavuori 3N38	<<locked>>	80%	32010	87%	**17	94%
Vihtavuori N105	<<locked>>	87%	33257	90%	**99	98%
Vihtavuori N320	<<locked>>	63%	33141	90%	**37	100%
Vihtavuori N32C Tin Star	<<locked>>	86%	32576	88%	**48	100%
Vihtavuori N330	<<locked>>	65%	33054	89%	**93	100%
Vihtavuori N340	<<locked>>	68%	33214	90%	**35	100%
Vihtavuori N350	<<locked>>	72%	32082	87%	**78	100%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AP 100]*	<<locked>>	61%	17637	48%	**53	89%
ADI APS 350	<<locked>>	61%	29936	81%	**63	100%
ADI APS 450	<<locked>>	62%	29544	80%	**89	100%
ADI AS 30	<<locked>>	61%	28805	78%	**19	100%
ADI AS 50N	<<locked>>	61%	30995	84%	**01	100%
Accurate No. 2	<<locked>>	61%	29182	79%	**70	100%
[Accurate No. 7]*	<<locked>>	61%	27543	74%	**52	88%
[Accurate No. 9]*	<<locked>>	67%	26324	71%	**16	81%
Accurate Solo 1000	<<locked>>	61%	29602	80%	**68	100%
Accurate Solo 1250	<<locked>>	61%	26194	71%	**68	100%
[Accurate TCM]*	<<locked>>	65%	24323	66%	**63	81%
[Alliant BLUE DOT]*	<<locked>>	67%	19972	54%	**52	80%
Alliant POWER PISTOL	<<locked>>	61%	26136	71%	**09	95%
Alliant UNIQUE	<<locked>>	61%	26165	71%	**37	100%
Baschieri & Pellagri 100	<<locked>>	61%	28587	77%	**55	100%
Hodgdon Clays	<<locked>>	61%	30530	83%	**86	100%
Hodgdon Universal	<<locked>>	61%	30661	83%	**57	100%
Hodgdon TrailBoss	<<locked>>	62%	9631	26%	**3	100%
[Lovex D037.1]*	<<locked>>	61%	27543	74%	**52	88%
[Lovex D037.2]*	<<locked>>	66%	25817	70%	**06	80%
Lovex S020	<<locked>>	61%	30705	83%	**80	100%
Maxam CSB 1	<<locked>>	61%	24163	65%	**25	100%
Maxam CSB 2	<<locked>>	61%	27050	73%	**71	100%
Maxam CSB 3	<<locked>>	61%	27746	75%	**65	100%
Maxam CSB 4	<<locked>>	61%	29515	80%	**68	100%
[Ramshot Enforcer]*	<<locked>>	80%	28427	77%	**85	80%
ReloadSwiss RS 14	<<locked>>	60%	8804	24%	**3	100%
ReloadSwiss RS 20	<<locked>>	61%	25193	68%	**11	100%
[ReloadSwiss RS 24]*	<<locked>>	61%	23714	64%	**60	88%
Rottweil P 806	<<locked>>	61%	20740	56%	**94	96%
SNPE Vectan A0	<<locked>>	61%	24439	66%	**68	100%
SNPE Vectan BA 9	<<locked>>	61%	28935	78%	**17	100%
SNPE Vectan BA7 1/2	<<locked>>	61%	21306	58%	**39	97%
SNPE Vectan BA9 1/2	<<locked>>	61%	28979	78%	**27	100%
[Shooters World Heavy Pistol]*	<<locked>>	66%	25817	70%	**06	80%
[Shooters World Major Pistol]*	<<locked>>	61%	27543	74%	**52	88%
Somchem MP200	<<locked>>	61%	30168	82%	**06	100%
Somchem MS200	<<locked>>	61%	27151	73%	**24	100%
Vihtavuori 3N37	<<locked>>	61%	25034	68%	**47	99%
[Vihtavuori 3N38]*	<<locked>>	61%	17825	48%	**83	83%
[Vihtavuori N105]*	<<locked>>	61%	14011	38%	**07	81%
Vihtavuori N320	<<locked>>	61%	31140	84%	**01	100%
Vihtavuori N32C Tin Star	<<locked>>	61%	18217	49%	**02	100%
Vihtavuori N330	<<locked>>	61%	29486	80%	**37	100%
Vihtavuori N340	<<locked>>	61%	26455	72%	**21	100%
Vihtavuori N350	<<locked>>	61%	23090	62%	**94	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.