Load data for .357 Magnum + .355 | 90gr | Lehigh Defense Xtreme Penetrator

Recommended Powder(s): Alliant UNIQUE, Ramshot True Blue, ReloadSwiss RS 20, Vihtavuori 3N37, Vihtavuori N350

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.355 \| 90gr \| Lehigh Defense Xtreme Penetrator
Manufacturer SKU:	X Penetra 07355090SP
Bullet Weight:	90gr \| 5.8g
Bullet Diameter:	0.355" \| 9.02mm
Bullet Length:	0.510" \| 13.0mm
Caliber:	.357 Magnum load data
Case Length (l3):	1.290" \| 32.8mm
Cartridge Length (C.O.L.):	1.566" \| 39.8mm
Seated Depth:	0.234" \| 5.9mm
Shank Seated Depth:	0.234" \| 5.9mm
Case Capacity:	25.6 Grains of Water \| 1.66 cm³
Primer Size:	Small Pistol Magnum (SPM)
Max. allowed Pressure:	43511 psi \| 3000 bar
LID:	LID_B11040_C513
Last updated:	2025-11-04

Load data for 124 loads in caliber .357 Magnum with .355 | 90gr | Lehigh Defense Xtreme Penetrator bullet and 62 powders such as Alliant UNIQUE, Ramshot True Blue, ReloadSwiss RS 20, Vihtavuori 3N37, Vihtavuori N350. 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.

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>>	97%	29791	68%	**83	91%
ADI AP 70N	<<locked>>	76%	39131	90%	**75	100%
ADI APS 350	<<locked>>	81%	38885	89%	**35	100%
ADI APS 450	<<locked>>	83%	38711	89%	**72	100%
ADI AS 30	<<locked>>	85%	38043	87%	**27	100%
ADI AS 50N	<<locked>>	81%	38101	88%	**83	100%
Accurate No. 2	<<locked>>	82%	38696	89%	**62	100%
Accurate No. 5	<<locked>>	67%	38218	88%	**50	96%
[Accurate No. 7]*	<<locked>>	85%	38899	89%	**03	86%
Accurate Solo 1000	<<locked>>	84%	38464	88%	**63	100%
Accurate Solo 1250	<<locked>>	89%	38014	87%	**32	100%
Alliant BULLSEYE	<<locked>>	79%	38783	89%	**24	100%
Alliant POWER PISTOL	<<locked>>	90%	38783	89%	**16	94%
Alliant Sport Pistol	<<locked>>	73%	38232	88%	**08	100%
Alliant UNIQUE 👍	<<locked>>	91%	38392	88%	**27	100%
Baschieri & Pellagri 100	<<locked>>	85%	38493	88%	**70	100%
Hodgdon Clays	<<locked>>	80%	38087	88%	**42	100%
Hodgdon HP38	<<locked>>	64%	39059	90%	**22	100%
Hodgdon HS-6	<<locked>>	74%	39001	90%	**47	98%
Hodgdon Longshot	<<locked>>	70%	38145	88%	**31	99%
Hodgdon Universal	<<locked>>	84%	39131	90%	**75	100%
Hodgdon CFE Pistol	<<locked>>	86%	38537	89%	**42	100%
Hodgdon TrailBoss	<<locked>>	96%	11850	27%	**99	100%
Lovex D036	<<locked>>	67%	38174	88%	**47	96%
[Lovex D037.1]*	<<locked>>	85%	38899	89%	**03	86%
Lovex S011	<<locked>>	72%	38116	88%	**96	100%
Lovex S020	<<locked>>	82%	38537	89%	**72	100%
Maxam CSB 1	<<locked>>	94%	39117	90%	**36	100%
Maxam CSB 2	<<locked>>	90%	38290	88%	**32	100%
Maxam CSB 3	<<locked>>	88%	38667	89%	**03	100%
Maxam CSB 4	<<locked>>	85%	39131	90%	**93	100%
Maxam CSB 5	<<locked>>	80%	38145	88%	**11	100%
Ramshot Silhouette	<<locked>>	74%	38450	88%	**08	100%
Ramshot True Blue 👍	<<locked>>	69%	38914	89%	**37	99%
Ramshot Zip	<<locked>>	64%	39030	90%	**29	100%
ReloadSwiss RS 12	<<locked>>	78%	38101	88%	**16	100%
ReloadSwiss RS 14	<<locked>>	96%	10486	24%	**76	99%
ReloadSwiss RS 20 👍	<<locked>>	92%	38870	89%	**14	100%
[ReloadSwiss RS 24]*	<<locked>>	92%	38493	88%	**93	89%
Rottweil P 801	<<locked>>	74%	38638	89%	**83	100%
Rottweil P 806	<<locked>>	97%	36709	84%	**83	98%
SNPE Vectan A0	<<locked>>	92%	38218	88%	**65	100%
SNPE Vectan BA 9	<<locked>>	84%	39030	90%	**39	100%
SNPE Vectan BA10	<<locked>>	77%	38696	89%	**72	100%
SNPE Vectan BA7 1/2	<<locked>>	96%	36376	84%	**68	98%
SNPE Vectan BA9 1/2	<<locked>>	85%	38043	87%	**36	100%
SNPE Vectan SP 2	<<locked>>	85%	38319	88%	**09	96%
Shooters World Auto Pistol	<<locked>>	67%	38174	88%	**47	96%
[Shooters World Major Pistol]*	<<locked>>	85%	38899	89%	**03	86%
Somchem MP200	<<locked>>	83%	38392	88%	**11	100%
Somchem MS200	<<locked>>	88%	38653	89%	**78	100%
Somchem S221	<<locked>>	77%	38072	88%	**57	92%
Vihtavuori 3N37 👍	<<locked>>	91%	38885	89%	**57	99%
[Vihtavuori 3N38]*	<<locked>>	97%	31009	71%	**36	85%
[Vihtavuori N105]*	<<locked>>	96%	23235	53%	**17	83%
Vihtavuori N310	<<locked>>	68%	38435	88%	**72	100%
Vihtavuori N320	<<locked>>	82%	38319	88%	**86	100%
Vihtavuori N32C Tin Star	<<locked>>	97%	28268	65%	**50	100%
Vihtavuori N330	<<locked>>	84%	38363	88%	**62	100%
Vihtavuori N340	<<locked>>	88%	38493	88%	**78	100%
Vihtavuori N350 👍	<<locked>>	94%	38508	89%	**34	99%
Winchester 231	<<locked>>	72%	39030	90%	**29	100%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AP 100]*	<<locked>>	77%	17680	41%	**75	81%
ADI AP 70N	<<locked>>	61%	24598	57%	**12	100%
ADI APS 350	<<locked>>	60%	23757	55%	**99	100%
ADI APS 450	<<locked>>	62%	23409	54%	**22	100%
ADI AS 30	<<locked>>	61%	20726	48%	**29	100%
ADI AS 50N	<<locked>>	61%	22118	51%	**04	100%
Accurate No. 2	<<locked>>	61%	20015	46%	**04	95%
Accurate No. 5	<<locked>>	61%	29950	69%	**86	93%
[Accurate No. 7]*	<<locked>>	78%	29921	69%	**29	80%
Accurate Solo 1000	<<locked>>	61%	21480	49%	**68	100%
Accurate Solo 1250	<<locked>>	61%	17129	39%	**22	99%
Alliant BULLSEYE	<<locked>>	61%	23134	53%	**16	99%
[Alliant POWER PISTOL]*	<<locked>>	65%	18449	42%	**40	80%
Alliant Sport Pistol	<<locked>>	61%	26005	60%	**81	99%
Alliant UNIQUE	<<locked>>	60%	16534	38%	**35	95%
Baschieri & Pellagri 100	<<locked>>	61%	19522	45%	**45	100%
Hodgdon Clays	<<locked>>	60%	24033	55%	**12	100%
Hodgdon HP38	<<locked>>	61%	35476	82%	**73	100%
Hodgdon HS-6	<<locked>>	61%	24613	57%	**68	92%
Hodgdon Longshot	<<locked>>	61%	27224	63%	**31	96%
Hodgdon Universal	<<locked>>	61%	20088	46%	**21	100%
Hodgdon CFE Pistol	<<locked>>	61%	19087	44%	**78	100%
Hodgdon TrailBoss	<<locked>>	60%	5308	12%	**1	94%
Lovex D036	<<locked>>	61%	29892	69%	**83	93%
[Lovex D037.1]*	<<locked>>	78%	29921	69%	**29	80%
Lovex S011	<<locked>>	61%	27151	62%	**19	100%
Lovex S020	<<locked>>	61%	19841	46%	**21	99%
Maxam CSB 1	<<locked>>	61%	16447	38%	**89	99%
Maxam CSB 2	<<locked>>	61%	16592	38%	**25	100%
Maxam CSB 3	<<locked>>	60%	18478	42%	**35	100%
Maxam CSB 4	<<locked>>	61%	20929	48%	**78	100%
Maxam CSB 5	<<locked>>	61%	23424	54%	**71	100%
Ramshot Silhouette	<<locked>>	61%	25353	58%	**78	98%
Ramshot True Blue	<<locked>>	61%	28747	66%	**44	96%
Ramshot Zip	<<locked>>	61%	35375	81%	**77	100%
ReloadSwiss RS 12	<<locked>>	61%	22365	51%	**53	100%
[ReloadSwiss RS 14]*	<<locked>>	62%	4888	11%	**8	87%
ReloadSwiss RS 20	<<locked>>	61%	15069	35%	**09	95%
[ReloadSwiss RS 24]*	<<locked>>	78%	25367	58%	**17	80%
Rottweil P 801	<<locked>>	60%	25947	60%	**83	100%
[Rottweil P 806]*	<<locked>>	70%	13692	31%	**29	80%
SNPE Vectan A0	<<locked>>	61%	16346	38%	**86	94%
SNPE Vectan BA 9	<<locked>>	61%	20262	47%	**91	100%
SNPE Vectan BA10	<<locked>>	61%	25556	59%	**62	100%
[SNPE Vectan BA7 1/2]*	<<locked>>	61%	13503	31%	**11	82%
SNPE Vectan BA9 1/2	<<locked>>	62%	19725	45%	**98	100%
[SNPE Vectan SP 2]*	<<locked>>	61%	16389	38%	**91	80%
Shooters World Auto Pistol	<<locked>>	61%	29892	69%	**83	93%
[Shooters World Major Pistol]*	<<locked>>	78%	29921	69%	**29	80%
Somchem MP200	<<locked>>	61%	19943	46%	**24	96%
Somchem MS200	<<locked>>	61%	18159	42%	**71	97%
[Somchem S221]*	<<locked>>	61%	21147	49%	**80	80%
[Vihtavuori 3N37]*	<<locked>>	61%	15273	35%	**16	86%
[Vihtavuori 3N38]*	<<locked>>	88%	24149	56%	**75	80%
[Vihtavuori N105]*	<<locked>>	93%	20914	48%	**55	81%
Vihtavuori N310	<<locked>>	61%	31299	72%	**73	100%
Vihtavuori N320	<<locked>>	61%	20537	47%	**85	100%
Vihtavuori N32C Tin Star	<<locked>>	61%	11487	26%	**83	100%
Vihtavuori N330	<<locked>>	61%	18768	43%	**98	100%
Vihtavuori N340	<<locked>>	61%	17361	40%	**48	96%
[Vihtavuori N350]*	<<locked>>	60%	13416	31%	**43	84%
Winchester 231	<<locked>>	60%	27528	63%	**45	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.