Load data for .357 Magnum + .355 | 100gr | Speer JHP

Recommended Powder(s):

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.355 \| 100gr \| Speer JHP
Manufacturer SKU:	3983
Bullet Weight:	100gr \| 6.5g
Bullet Diameter:	0.355" \| 9.02mm
Bullet Length:	0.461" \| 11.7mm
Caliber:	.357 Magnum load data
Case Length (l3):	1.290" \| 32.8mm
Cartridge Length (C.O.L.):	1.566" \| 39.8mm
Seated Depth:	0.185" \| 4.7mm
Shank Seated Depth:	0.185" \| 4.7mm
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_B6200_C513
Last updated:	2026-01-24

Load data for 128 loads in caliber .357 Magnum with .355 | 100gr | Speer JHP bullet and 64 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>>	96%	34069	78%	**83	95%
ADI AP 70N	<<locked>>	71%	39015	90%	**67	100%
ADI APS 350	<<locked>>	77%	38159	88%	**37	100%
ADI APS 450	<<locked>>	80%	39044	90%	**90	100%
ADI AS 30	<<locked>>	80%	38522	89%	**42	100%
ADI AS 50N	<<locked>>	77%	38769	89%	**94	100%
Accurate No. 2 👍	<<locked>>	77%	38348	88%	**73	100%
Accurate No. 5	<<locked>>	63%	38740	89%	**78	98%
[Accurate No. 7]*	<<locked>>	79%	38769	89%	**14	88%
Accurate Solo 1000	<<locked>>	79%	38421	88%	**75	100%
Accurate Solo 1250	<<locked>>	84%	38334	88%	**44	100%
[Accurate TCM]*	<<locked>>	87%	38116	88%	**78	83%
[Alliant BLUE DOT]*	<<locked>>	96%	32938	76%	**93	84%
Alliant BULLSEYE	<<locked>>	75%	39030	90%	**39	100%
Alliant POWER PISTOL	<<locked>>	83%	38537	89%	**31	96%
Alliant Sport Pistol	<<locked>>	69%	38450	88%	**26	100%
Alliant UNIQUE	<<locked>>	84%	38276	88%	**26	100%
Baschieri & Pellagri 100	<<locked>>	80%	38450	88%	**78	100%
Baschieri & Pellagri 102 Pistol	<<locked>>	97%	36216	83%	**52	100%
Baschieri & Pellagri 103 Pistol	<<locked>>	75%	38624	89%	**94	100%
Hodgdon Clays	<<locked>>	77%	38827	89%	**67	100%
Hodgdon HS-6 👍	<<locked>>	69%	38392	88%	**55	99%
Hodgdon Longshot	<<locked>>	66%	38711	89%	**52	100%
Hodgdon Universal	<<locked>>	78%	39015	90%	**67	100%
Hodgdon CFE Pistol	<<locked>>	79%	38145	88%	**40	100%
Hodgdon TrailBoss	<<locked>>	95%	14794	34%	**06	100%
Lovex D036	<<locked>>	63%	38682	89%	**75	98%
[Lovex D037.1]*	<<locked>>	79%	38769	89%	**14	88%
Lovex S011	<<locked>>	68%	38116	88%	**98	100%
Lovex S020	<<locked>>	76%	38000	87%	**63	100%
Maxam CSB 1	<<locked>>	88%	38203	88%	**34	100%
Maxam CSB 2	<<locked>>	84%	38653	89%	**44	100%
Maxam CSB 3	<<locked>>	83%	39088	90%	**17	100%
Maxam CSB 4	<<locked>>	79%	38203	88%	**75	100%
Maxam CSB 5	<<locked>>	75%	38159	88%	**22	100%
Ramshot Silhouette	<<locked>>	70%	38783	89%	**26	100%
Ramshot True Blue	<<locked>>	64%	38348	88%	**45	100%
ReloadSwiss RS 12	<<locked>>	73%	38609	89%	**24	100%
ReloadSwiss RS 14	<<locked>>	95%	13576	31%	**09	100%
ReloadSwiss RS 20	<<locked>>	86%	38667	89%	**16	100%
ReloadSwiss RS 24	<<locked>>	86%	38972	90%	**21	91%
Rottweil P 801	<<locked>>	68%	38783	89%	**78	100%
Rottweil P 806 👍	<<locked>>	91%	38986	90%	**44	100%
SNPE Vectan A0	<<locked>>	87%	38406	88%	**67	100%
SNPE Vectan BA 9	<<locked>>	79%	38986	90%	**40	100%
SNPE Vectan BA10	<<locked>>	74%	39030	90%	**90	100%
SNPE Vectan BA7 1/2 👍	<<locked>>	92%	38870	89%	**39	100%
SNPE Vectan BA9 1/2	<<locked>>	80%	38653	89%	**50	100%
SNPE Vectan SP 2	<<locked>>	79%	39117	90%	**31	98%
Shooters World Auto Pistol	<<locked>>	63%	38682	89%	**75	98%
[Shooters World Major Pistol]*	<<locked>>	79%	38769	89%	**14	88%
Somchem MP200	<<locked>>	78%	39030	90%	**29	100%
Somchem MS200	<<locked>>	82%	37898	87%	**77	100%
Somchem S221	<<locked>>	73%	39131	90%	**81	94%
Vihtavuori 3N37	<<locked>>	85%	38696	89%	**65	100%
Vihtavuori 3N38	<<locked>>	97%	38116	88%	**75	91%
Vihtavuori N105	<<locked>>	97%	29950	69%	**09	92%
Vihtavuori N310	<<locked>>	64%	38522	89%	**83	100%
Vihtavuori N320	<<locked>>	77%	39073	90%	**98	100%
Vihtavuori N32C Tin Star	<<locked>>	96%	32561	75%	**17	100%
Vihtavuori N330	<<locked>>	78%	38145	88%	**57	100%
Vihtavuori N340	<<locked>>	83%	39001	90%	**93	100%
Vihtavuori N350	<<locked>>	89%	39131	90%	**52	100%
Winchester 231	<<locked>>	66%	38159	88%	**24	100%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AP 100]*	<<locked>>	65%	15084	35%	**24	80%
ADI AP 70N	<<locked>>	61%	29167	67%	**09	100%
ADI APS 350	<<locked>>	62%	27151	62%	**80	100%
ADI APS 450	<<locked>>	61%	25585	59%	**93	100%
ADI AS 30	<<locked>>	60%	23786	55%	**09	100%
ADI AS 50N	<<locked>>	62%	26382	61%	**98	100%
Accurate No. 2	<<locked>>	61%	23540	54%	**11	98%
Accurate No. 5	<<locked>>	61%	35462	81%	**29	97%
[Accurate No. 7]*	<<locked>>	68%	25643	59%	**58	80%
Accurate Solo 1000	<<locked>>	60%	24076	55%	**42	100%
Accurate Solo 1250	<<locked>>	61%	20784	48%	**39	100%
[Accurate TCM]*	<<locked>>	83%	32909	76%	**80	80%
[Alliant BLUE DOT]*	<<locked>>	89%	27499	63%	**81	80%
Alliant BULLSEYE	<<locked>>	61%	26977	62%	**22	100%
[Alliant POWER PISTOL]*	<<locked>>	61%	19870	46%	**04	85%
Alliant Sport Pistol	<<locked>>	62%	30806	71%	**91	100%
Alliant UNIQUE	<<locked>>	61%	20523	47%	**75	99%
Baschieri & Pellagri 100	<<locked>>	61%	23351	54%	**42	100%
Baschieri & Pellagri 102 Pistol	<<locked>>	61%	14794	34%	**58	100%
Baschieri & Pellagri 103 Pistol	<<locked>>	61%	24685	57%	**88	100%
Hodgdon Clays	<<locked>>	62%	27659	64%	**02	100%
Hodgdon HS-6	<<locked>>	61%	29762	68%	**91	97%
Hodgdon Longshot	<<locked>>	61%	32822	75%	**44	99%
Hodgdon Universal	<<locked>>	61%	24627	57%	**30	100%
Hodgdon CFE Pistol	<<locked>>	61%	22902	53%	**91	100%
Hodgdon TrailBoss	<<locked>>	62%	7658	18%	**6	100%
Lovex D036	<<locked>>	61%	35404	81%	**26	97%
[Lovex D037.1]*	<<locked>>	68%	25643	59%	**58	80%
Lovex S011	<<locked>>	61%	30893	71%	**96	100%
Lovex S020	<<locked>>	61%	23989	55%	**30	100%
Maxam CSB 1	<<locked>>	61%	19189	44%	**89	100%
Maxam CSB 2	<<locked>>	62%	21234	49%	**52	100%
Maxam CSB 3	<<locked>>	61%	22278	51%	**39	100%
Maxam CSB 4	<<locked>>	61%	23960	55%	**55	100%
Maxam CSB 5	<<locked>>	62%	27557	63%	**65	100%
Ramshot Silhouette	<<locked>>	61%	28964	67%	**58	100%
Ramshot True Blue	<<locked>>	61%	34229	79%	**67	99%
ReloadSwiss RS 12	<<locked>>	61%	27572	63%	**50	100%
ReloadSwiss RS 14	<<locked>>	60%	7005	16%	**3	96%
ReloadSwiss RS 20	<<locked>>	61%	18681	43%	**52	99%
[ReloadSwiss RS 24]*	<<locked>>	69%	22379	51%	**67	80%
Rottweil P 801	<<locked>>	61%	31894	73%	**90	100%
[Rottweil P 806]*	<<locked>>	61%	13460	31%	**43	83%
SNPE Vectan A0	<<locked>>	61%	19508	45%	**16	98%
SNPE Vectan BA 9	<<locked>>	61%	23482	54%	**88	100%
SNPE Vectan BA10	<<locked>>	61%	28689	66%	**39	100%
[SNPE Vectan BA7 1/2]*	<<locked>>	61%	16505	38%	**53	89%
SNPE Vectan BA9 1/2	<<locked>>	60%	22597	52%	**81	100%
[SNPE Vectan SP 2]*	<<locked>>	61%	21277	49%	**63	88%
Shooters World Auto Pistol	<<locked>>	61%	35404	81%	**26	97%
[Shooters World Major Pistol]*	<<locked>>	68%	25643	59%	**58	80%
Somchem MP200	<<locked>>	61%	23699	54%	**40	99%
Somchem MS200	<<locked>>	61%	21828	50%	**85	100%
[Somchem S221]*	<<locked>>	61%	26368	61%	**49	88%
Vihtavuori 3N37	<<locked>>	61%	18753	43%	**45	92%
[Vihtavuori 3N38]*	<<locked>>	77%	21553	50%	**40	81%
[Vihtavuori N105]*	<<locked>>	81%	18188	42%	**98	80%
Vihtavuori N310	<<locked>>	60%	34505	79%	**30	100%
Vihtavuori N320	<<locked>>	61%	24845	57%	**81	100%
Vihtavuori N32C Tin Star	<<locked>>	61%	14518	33%	**86	100%
Vihtavuori N330	<<locked>>	61%	22945	53%	**04	100%
Vihtavuori N340	<<locked>>	61%	20914	48%	**65	99%
Vihtavuori N350	<<locked>>	61%	17231	40%	**99	91%
Winchester 231	<<locked>>	61%	32489	75%	**39	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