Load data for 9 x 18 (Ultra) + .357 | 85gr | H&N WC HS

Recommended Powder(s): Vihtavuori N310

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.357 \| 85gr \| H&N WC HS
Bullet Weight:	85gr \| 5.5g
Bullet Diameter:	0.357" \| 9.07mm
Bullet Length:	0.430" \| 10.9mm
Caliber:	9 x 18 (Ultra) load data
Case Length (l3):	0.705" \| 17.9mm
Cartridge Length (C.O.L.):	0.705" \| 17.9mm
Seated Depth:	0.430" \| 10.9mm
Shank Seated Depth:	0.191" \| 4.8mm
Case Capacity:	12.6 Grains of Water \| 0.82 cm³
Primer Size:	Small Pistol (SP)
Max. allowed Pressure:	26107 psi \| 1800 bar
LID:	LID_B7466_C1230
Last updated:	2025-11-12

Load data for 46 loads in caliber 9 x 18 (Ultra) with .357 | 85gr | H&N WC HS bullet and 23 powders such as Vihtavuori N310. 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.

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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 APS 350	<<locked>>	96%	20117	77%	**6	100%
ADI APS 450	<<locked>>	97%	19072	73%	**9	100%
ADI AS 30	<<locked>>	93%	12183	47%	**3	94%
[ADI AS 50N]*	<<locked>>	94%	12894	49%	**6	88%
Accurate Solo 1000	<<locked>>	95%	15040	58%	**3	90%
[Baschieri & Pellagri 100]*	<<locked>>	95%	11995	46%	**4	83%
Hodgdon Clays	<<locked>>	96%	20175	77%	**9	100%
Hodgdon HP38	<<locked>>	92%	23351	89%	**43	91%
Hodgdon TiteGroup	<<locked>>	83%	22916	88%	**30	97%
[Lovex D032]*	<<locked>>	78%	23293	89%	**4	85%
[Lovex S011]*	<<locked>>	97%	21350	82%	**1	88%
[Maxam CSB 4]*	<<locked>>	97%	12995	50%	**3	89%
Maxam CSB 5	<<locked>>	97%	15040	58%	**5	98%
[Ramshot Zip]*	<<locked>>	91%	22234	85%	**27	89%
[ReloadSwiss RS 12]*	<<locked>>	95%	8949	34%	**0	84%
Rottweil P 801	<<locked>>	97%	12328	47%	**5	94%
SNPE Vectan BA10	<<locked>>	94%	20813	80%	**5	100%
[Shooters World Clean Shot]*	<<locked>>	78%	23293	89%	**4	85%
[Shooters World Ultimate Pistol]*	<<locked>>	84%	23409	90%	**73	83%
[Somchem S121]*	<<locked>>	84%	22147	85%	**89	87%
Vihtavuori N310 👍	<<locked>>	94%	19029	73%	**8	100%
[Vihtavuori N320]*	<<locked>>	97%	11879	45%	**6	87%
[Winchester 231]*	<<locked>>	96%	18927	73%	**4	87%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
ADI APS 350	<<locked>>	64%	9268	36%	**2	97%
ADI APS 450	<<locked>>	63%	8325	32%	**6	93%
[ADI AS 30]*	<<locked>>	72%	7223	28%	**6	85%
[ADI AS 50N]*	<<locked>>	79%	8934	34%	**8	81%
[Accurate Solo 1000]*	<<locked>>	75%	9573	37%	**5	82%
[Baschieri & Pellagri 100]*	<<locked>>	92%	10907	42%	**7	81%
Hodgdon Clays	<<locked>>	64%	9239	35%	**6	96%
[Hodgdon HP38]*	<<locked>>	71%	12314	47%	**3	81%
[Hodgdon TiteGroup]*²	<<locked>>	59%	10428	40%	**4	87%
[Lovex D032]*	<<locked>>	73%	19247	74%	**5	81%
[Lovex S011]*	<<locked>>	81%	13909	53%	**3	81%
[Maxam CSB 4]*	<<locked>>	81%	9094	35%	**8	82%
[Maxam CSB 5]*	<<locked>>	64%	6686	26%	**9	85%
[Ramshot Zip]*	<<locked>>	75%	13895	53%	**9	81%
[ReloadSwiss RS 12]*	<<locked>>	92%	8209	31%	**7	81%
[Rottweil P 801]*	<<locked>>	72%	6280	24%	**5	80%
SNPE Vectan BA10	<<locked>>	63%	9413	36%	**9	95%
[Shooters World Clean Shot]*	<<locked>>	73%	19247	74%	**5	81%
[Shooters World Ultimate Pistol]*	<<locked>>	82%	21872	84%	**47	81%
[Somchem S121]*	<<locked>>	73%	15258	58%	**1	80%
Vihtavuori N310	<<locked>>	60%	7121	27%	**9	93%
[Vihtavuori N320]*	<<locked>>	86%	8949	34%	**4	81%
[Winchester 231]*	<<locked>>	84%	13895	53%	**9	81%

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