Load data for .357 SIG + .357 | 127gr | H&N KS HS

Recommended Powder(s): Alliant UNIQUE, Ramshot True Blue, ReloadSwiss RS 20, Somchem MS200, Vihtavuori N340

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.357 \| 127gr \| H&N KS HS
Bullet Weight:	127gr \| 8.2g
Bullet Diameter:	0.357" \| 9.07mm
Bullet Length:	0.570" \| 14.5mm
Caliber:	.357 SIG load data
Case Length (l3):	0.860" \| 21.8mm
Cartridge Length (C.O.L.):	1.123" \| 28.5mm
Seated Depth:	0.307" \| 7.8mm
Shank Seated Depth:	0.307" \| 7.8mm
Case Capacity:	19.5 Grains of Water \| 1.27 cm³
Primer Size:	Small Pistol (SP)
Max. allowed Pressure:	44237 psi \| 3050 bar
LID:	LID_B7469_C518
Last updated:	2025-02-02

Load data for 116 loads in caliber .357 SIG with .357 | 127gr | H&N KS HS bullet and 58 powders such as Alliant UNIQUE, Ramshot True Blue, ReloadSwiss RS 20, Somchem MS200, Vihtavuori N340. 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>>	95%	23554	53%	**04	88%
ADI AP 70N	<<locked>>	82%	39233	89%	**58	100%
ADI APS 350	<<locked>>	86%	39639	90%	**52	100%
ADI APS 450	<<locked>>	87%	38957	88%	**81	100%
ADI AS 30	<<locked>>	91%	38218	86%	**30	100%
ADI AS 50N	<<locked>>	88%	38972	88%	**86	100%
Accurate No. 2	<<locked>>	86%	37608	85%	**32	100%
Accurate No. 5	<<locked>>	73%	39247	89%	**53	97%
[Accurate No. 7]*	<<locked>>	93%	39653	90%	**96	87%
Accurate Solo 1000	<<locked>>	90%	39131	88%	**66	100%
Accurate Solo 1250	<<locked>>	95%	37942	86%	**12	100%
Alliant BULLSEYE	<<locked>>	84%	37797	85%	**85	100%
Alliant POWER PISTOL	<<locked>>	95%	37130	84%	**73	95%
Alliant UNIQUE 👍	<<locked>>	95%	36114	82%	**81	100%
Baschieri & Pellagri 100	<<locked>>	91%	38218	86%	**60	100%
Hodgdon Clays	<<locked>>	83%	37927	86%	**48	100%
Hodgdon HP38	<<locked>>	68%	39247	89%	**12	100%
Hodgdon HS-6	<<locked>>	79%	39117	88%	**30	99%
Hodgdon Longshot	<<locked>>	75%	37884	86%	**11	99%
Hodgdon TiteGroup	<<locked>>	63%	39247	89%	**60	100%
Hodgdon Universal	<<locked>>	91%	39233	89%	**58	100%
Hodgdon TrailBoss	<<locked>>	93%	9573	22%	**1	100%
Lovex D036	<<locked>>	73%	39175	89%	**50	97%
[Lovex D037.1]*	<<locked>>	93%	39653	90%	**96	87%
Lovex S011	<<locked>>	78%	38740	88%	**89	100%
Lovex S020	<<locked>>	88%	39189	89%	**62	100%
Maxam CSB 1	<<locked>>	96%	35099	79%	**83	100%
Maxam CSB 2	<<locked>>	96%	36564	83%	**19	100%
Maxam CSB 3	<<locked>>	94%	38464	87%	**93	100%
Maxam CSB 4	<<locked>>	91%	38885	88%	**76	100%
Maxam CSB 5	<<locked>>	87%	39639	90%	**34	100%
Ramshot Silhouette	<<locked>>	80%	39262	89%	**07	100%
Ramshot True Blue 👍	<<locked>>	74%	38827	88%	**14	99%
Ramshot Zip	<<locked>>	69%	39726	90%	**22	100%
ReloadSwiss RS 12	<<locked>>	85%	38334	87%	**19	100%
ReloadSwiss RS 14	<<locked>>	95%	8630	20%	**7	99%
ReloadSwiss RS 20 👍	<<locked>>	96%	35027	79%	**68	100%
[ReloadSwiss RS 24]*	<<locked>>	97%	36303	82%	**44	88%
Rottweil P 801	<<locked>>	79%	38348	87%	**86	100%
Rottweil P 806	<<locked>>	97%	26237	59%	**68	96%
SNPE Vectan A0	<<locked>>	96%	35288	80%	**12	100%
SNPE Vectan BA 9	<<locked>>	90%	39450	89%	**25	100%
SNPE Vectan BA10	<<locked>>	81%	38928	88%	**81	100%
SNPE Vectan BA7 1/2	<<locked>>	95%	30023	68%	**93	97%
SNPE Vectan BA9 1/2	<<locked>>	93%	39320	89%	**45	100%
Shooters World Auto Pistol	<<locked>>	73%	39175	89%	**50	97%
[Shooters World Major Pistol]*	<<locked>>	93%	39653	90%	**96	87%
Somchem MP200	<<locked>>	89%	38479	87%	**91	100%
Somchem MS200 👍	<<locked>>	94%	37855	86%	**62	100%
Somchem S221	<<locked>>	85%	39755	90%	**67	93%
Vihtavuori 3N37	<<locked>>	96%	36651	83%	**07	99%
Vihtavuori N310	<<locked>>	74%	39146	88%	**91	100%
Vihtavuori N320	<<locked>>	87%	37608	85%	**73	100%
Vihtavuori N32C Tin Star	<<locked>>	94%	22902	52%	**37	100%
Vihtavuori N330	<<locked>>	92%	39349	89%	**55	100%
Vihtavuori N340 👍	<<locked>>	95%	38522	87%	**65	100%
Vihtavuori N350	<<locked>>	96%	33170	75%	**58	99%
Winchester 231	<<locked>>	77%	39726	90%	**22	100%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AP 100]*	<<locked>>	78%	15243	34%	**17	80%
ADI AP 70N	<<locked>>	60%	20465	46%	**99	100%
ADI APS 350	<<locked>>	60%	21321	48%	**5	100%
ADI APS 450	<<locked>>	60%	20262	46%	**5	100%
ADI AS 30	<<locked>>	61%	18304	41%	**8	100%
ADI AS 50N	<<locked>>	61%	19406	44%	**27	100%
Accurate No. 2	<<locked>>	60%	16563	37%	**01	94%
Accurate No. 5	<<locked>>	61%	25106	57%	**37	92%
[Accurate No. 7]*	<<locked>>	83%	28239	64%	**32	81%
Accurate Solo 1000	<<locked>>	62%	19334	44%	**07	100%
Accurate Solo 1250	<<locked>>	62%	15214	34%	**8	99%
Alliant BULLSEYE	<<locked>>	60%	19334	44%	**96	99%
[Alliant POWER PISTOL]*	<<locked>>	66%	16041	36%	**66	80%
Alliant UNIQUE	<<locked>>	62%	14678	33%	**01	95%
Baschieri & Pellagri 100	<<locked>>	62%	17535	40%	**8	100%
Hodgdon Clays	<<locked>>	60%	21509	49%	**1	100%
Hodgdon HP38	<<locked>>	61%	31314	71%	**24	100%
Hodgdon HS-6	<<locked>>	61%	20320	46%	**35	91%
Hodgdon Longshot	<<locked>>	61%	22960	52%	**88	94%
Hodgdon TiteGroup	<<locked>>	61%	37101	84%	**40	100%
Hodgdon Universal	<<locked>>	60%	16708	38%	**24	100%
Hodgdon TrailBoss	<<locked>>	72%	6034	14%	**9	98%
Lovex D036	<<locked>>	61%	25063	57%	**37	92%
[Lovex D037.1]*	<<locked>>	83%	28239	64%	**32	81%
Lovex S011	<<locked>>	61%	23641	53%	**02	100%
Lovex S020	<<locked>>	61%	16882	38%	**37	98%
Maxam CSB 1	<<locked>>	60%	13445	30%	**8	99%
Maxam CSB 2	<<locked>>	61%	13431	30%	**8	100%
Maxam CSB 3	<<locked>>	62%	16810	38%	**1	100%
Maxam CSB 4	<<locked>>	61%	17767	40%	**1	100%
Maxam CSB 5	<<locked>>	60%	20334	46%	**7	100%
Ramshot Silhouette	<<locked>>	61%	20740	47%	**32	97%
Ramshot True Blue	<<locked>>	60%	23467	53%	**91	95%
Ramshot Zip	<<locked>>	61%	30110	68%	**14	100%
ReloadSwiss RS 12	<<locked>>	62%	19116	43%	**70	100%
ReloadSwiss RS 14	<<locked>>	75%	5584	13%	**6	93%
ReloadSwiss RS 20	<<locked>>	62%	12937	29%	**1	96%
[ReloadSwiss RS 24]*	<<locked>>	83%	23395	53%	**30	80%
Rottweil P 801	<<locked>>	61%	22292	50%	**86	100%
[Rottweil P 806]*	<<locked>>	74%	11473	26%	**17	81%
SNPE Vectan A0	<<locked>>	60%	13692	31%	**2	94%
SNPE Vectan BA 9	<<locked>>	62%	17898	40%	**24	99%
SNPE Vectan BA10	<<locked>>	61%	23467	53%	**04	100%
[SNPE Vectan BA7 1/2]*	<<locked>>	60%	11124	25%	**6	81%
SNPE Vectan BA9 1/2	<<locked>>	62%	17056	39%	**20	100%
Shooters World Auto Pistol	<<locked>>	61%	25063	57%	**37	92%
[Shooters World Major Pistol]*	<<locked>>	83%	28239	64%	**32	81%
Somchem MP200	<<locked>>	60%	16491	37%	**30	95%
Somchem MS200	<<locked>>	61%	15693	35%	**7	97%
[Somchem S221]*	<<locked>>	63%	18695	42%	**15	80%
[Vihtavuori 3N37]*	<<locked>>	61%	12401	28%	**1	85%
Vihtavuori N310	<<locked>>	61%	27847	63%	**73	100%
Vihtavuori N320	<<locked>>	61%	17564	40%	**07	100%
Vihtavuori N32C Tin Star	<<locked>>	60%	9239	21%	**8	100%
Vihtavuori N330	<<locked>>	61%	15650	35%	**17	100%
Vihtavuori N340	<<locked>>	60%	13996	32%	**8	95%
[Vihtavuori N350]*	<<locked>>	61%	11197	25%	**9	83%
Winchester 231	<<locked>>	60%	23598	53%	**29	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