Load data for .356 Win. + .357 | 170gr | Sierra FMJ RN SportsMaster

Recommended Powder(s): ADI AR 2207, Alliant Reloder-7, Norma 200, ReloadSwiss RS 36, Vihtavuori N120

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.357 \| 170gr \| Sierra FMJ RN SportsMaster
Manufacturer SKU:	8350
Bullet Weight:	170gr \| 11.0g
Bullet Diameter:	0.357" \| 9.07mm
Bullet Length:	0.740" \| 18.8mm
Caliber:	.356 Win. load data
Case Length (l3):	2.014" \| 51.2mm
Cartridge Length (C.O.L.):	2.517" \| 63.9mm
Seated Depth:	0.237" \| 6.0mm
Shank Seated Depth:	0.237" \| 6.0mm
Case Capacity:	55.0 Grains of Water \| 3.57 cm³
Primer Size:	Large Rifle (LR)
Max. allowed Pressure:	52000 psi \| 3585 bar
LID:	LID_B5949_C485
Last updated:	2025-08-20

Load data for 44 loads in caliber .356 Win. with .357 | 170gr | Sierra FMJ RN SportsMaster bullet and 22 powders such as ADI AR 2207, Alliant Reloder-7, Norma 200, ReloadSwiss RS 36, Vihtavuori N120. 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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C.O.L. (Inch)
C.O.L. (mm)
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Min z (%)
Min FR (%)
Max FR*
Barrel Length (Inch)
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 AR 2207 👍	<<locked>>	96%	45629	88%	**77	100%
ADI AR 2219	<<locked>>	97%	42859	82%	**48	95%
Accurate 1680	<<locked>>	87%	45687	88%	**18	97%
Accurate 2015	<<locked>>	97%	33141	64%	**57	95%
Alliant AR-Comp	<<locked>>	96%	29776	57%	**18	95%
Alliant Reloder-10x	<<locked>>	96%	37043	71%	**49	97%
Alliant Reloder-7 👍	<<locked>>	95%	46021	89%	**48	99%
Baschieri & Pellagri 106	<<locked>>	97%	43961	85%	**69	96%
[Hodgdon H322]*	<<locked>>	96%	34577	66%	**74	92%
[Hodgdon H335]*	<<locked>>	97%	41408	80%	**25	93%
Hodgdon H4198	<<locked>>	96%	46093	89%	**89	95%
IMR 4198	<<locked>>	96%	40959	79%	**62	99%
IMR 4227	<<locked>>	89%	46412	89%	**95	100%
Lovex S053	<<locked>>	90%	45774	88%	**75	100%
Norma 200 👍	<<locked>>	96%	41785	80%	**35	99%
ReloadSwiss RS 36 👍	<<locked>>	90%	46572	90%	**44	100%
SNPE Vectan BA6 1/2	<<locked>>	94%	46340	89%	**44	100%
[SNPE Vectan SP 10]*	<<locked>>	97%	42279	81%	**41	94%
Vihtavuori N110	<<locked>>	85%	46557	90%	**23	100%
Vihtavuori N120 👍	<<locked>>	97%	42438	82%	**82	100%
Vihtavuori N130	<<locked>>	96%	35404	68%	**54	96%
[Vihtavuori N133]*	<<locked>>	97%	29399	57%	**10	92%

Max Load - Barrel Length: 23.60''

Powder	Charge	FR	MaxP	%	V(0)	z
ADI AR 2207	<<locked>>	81%	27659	53%	**20	98%
[ADI AR 2219]*	<<locked>>	88%	31212	60%	**88	90%
Accurate 1680	<<locked>>	81%	37318	72%	**61	95%
[Accurate 2015]*	<<locked>>	87%	24265	47%	**24	90%
[Alliant AR-Comp]*	<<locked>>	88%	22756	44%	**88	90%
[Alliant Reloder-10x]*	<<locked>>	81%	22379	43%	**72	90%
Alliant Reloder-7	<<locked>>	81%	29022	56%	**03	95%
[Baschieri & Pellagri 106]*	<<locked>>	84%	28993	56%	**54	90%
[Hodgdon H322]*	<<locked>>	94%	31430	60%	**02	90%
[Hodgdon H335]*	<<locked>>	91%	33982	65%	**64	90%
[Hodgdon H4198]*	<<locked>>	83%	31473	61%	**97	90%
[IMR 4198]*	<<locked>>	81%	26020	50%	**08	93%
IMR 4227	<<locked>>	81%	35795	69%	**05	99%
Lovex S053	<<locked>>	81%	34737	67%	**85	100%
[Norma 200]*	<<locked>>	81%	24874	48%	**47	93%
ReloadSwiss RS 36	<<locked>>	81%	34635	67%	**28	98%
SNPE Vectan BA6 1/2	<<locked>>	81%	32721	63%	**31	100%
[SNPE Vectan SP 10]*	<<locked>>	90%	33953	65%	**64	90%
Vihtavuori N110	<<locked>>	81%	41234	79%	**44	100%
Vihtavuori N120	<<locked>>	81%	25802	50%	**38	98%
[Vihtavuori N130]*	<<locked>>	83%	23351	45%	**46	90%
[Vihtavuori N133]*	<<locked>>	93%	26339	51%	**21	90%

Start Load - Barrel Length: 23.60''

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.