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357 Magnum brass cases are basically a lengthened version of .38 special brass cases.  357 Magnum is one of the most popular handgun calibers in the world. Almost every revolver manufacturer makes a firearm in this chambering. It is also used in many lever action carbines.



  500 for $101.50
$0.20/each

  1000 for $171.00
$0.17/each

* Starline Brass does not sell any loaded ammunition. What you are purchasing are brass cases only and will need to be loaded into ammunition in order to be fired from a firearm.



Average rating

5.0 / 5


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Rating breakdown

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Randall Antosh
Port Saint Lucie, FL
October 17, 2023
Product Review
Best brass on the market and not over priced

Tom T
Wallingford, CT
November 12, 2021
Product Review
Excellent brass and Starline seems to get it in stock quickly. Shipping is usually same day. The only brass I try to get before others. Prices are very reasonable and the case dimensions are alway in spec and consistent. This 357 MAG brass was no exception! Great company!

Keith B
Platte City, MO
September 14, 2021
Product Review
Once you make one purchase, you'll be back for more and more. 357 Brass got me hooked.....I've used 7.62x39, 308, 300 Blackout, 6.5 Grendel and many more. Just awesome. Much better than Winchester. In my opinion.

Homer Pitner
Fremont, CA
July 19, 2020
Product Review
Outstanding brass, holds up to many reloadings, great price and free shipping. A superior product at a very reasonable price. I use nothing but Starline brass including rifle calibers. I can’t recommend starline and their products more highly.

gary volvo
fayetteville, Arkansas
May 21, 2018
Product Review
Been reloading 38/357 for 50 years now. had plenty of different cases, (hate plated, don't last long). starline has outlasted and bested all of the others hands down. thanks starline.

Rich Hershberger
Goshen, Indiana
May 14, 2018
Product Review
I purchased 200 of these to squirrel away for after I beat my factory load brass to heck. I have done that and started working with the Starline. I love it. I have 8 full power firings on 50 of them with no signs of abuse. I have been using another 50 for light plinking loads with plated bullets, and still have 100 in reserve. I am going to pick up more, but I do not think I will need to use them any time soon. Brass was consistent length, and cleans up nicely.

Michael Blackwell
Rockport/Texas, Texas
July 11, 2017
Product Review
Bought 500 about a year ago that I use for Lever Action Silhouette. I've only used 100 of the cases and at the rate I'm "using them up" I may never need to buy any again. The only one I've replaced was one that I lost in tall grass. Very good specs & build. These are 1st class.

Charles Johnson
Midland, Texas
May 22, 2017
Product Review
Ordered 1 K a couple of years ago for load development in my 38/357 Rossi, 24", lever M-92. Brass is very consistent in weight, wall thinkness, length, primer pocket formation. No need to resize before loading. Found case expansion upon firing to be also very consistent, allowing one to develop truly maximum loads. For load development, thiis is the brass to use.

Landon Truman
Blackfoot, Idaho
March 21, 2017
Product Review
Best brass on the market for any caliber. I use Starline 357 cases for my pet 357 carbine load, a 180 grain Hornady XTP. Super consistency gives super accuracy.

Ken Gammon
Cross Roads, Texas
September 16, 2016
Product Review
I ordered on a Sunday and received my brass on a Wednesday! I have been using Starline brass for years and i am always very pleased with the quality. It's a good American product made by Americans!

Joe L
Scottdale, Pennsylvania
March 23, 2016
Product Review
After 50 years of reloading it is sometimes hard to get excited about a product that you have been working with for a very long time. I have used virtually all major manufacturers brass in my 357 Mags and I can tell you one thing - there is no better brass for handguns than Starline. The finish is bright and flawless, the length is normally within +/- .001", primer pockets are well sized and tight, and diameters usually only require initial expansion for proper bullet retention. Repeat loadings feel much like the first and I am still using some of the original brass after 20 or more reloads. This is wonderful brass! Thank you Starline.

Andrew Goodwin
Sedona, Arizona
January 21, 2016
Product Review
Best brass ever. Easy to purchase factory direct. Great customer service. I use 40 S&W, 45 ACP, 357 Mag. The quality is second to none.

Daniel Isaac
Traverse City, Michigan
August 29, 2015
Product Review
No doubt the best brass I have ever purchased. Starline's quality is simply outstanding. I use .38, .357 mag., .44 mag. and .45 Colt. I have placed several orders amounting to 2,000 to 3,000 pieces, and NOT ONE bad piece! Simply atated, you cannot go wrong with Starline.

mark johnson
north plains, Oregon
June 26, 2015
Product Review
starline is the highest quality brass i have ever loaded bar none. absolutely uniform ready to load right from the package.

Jeff Flowers
Dover, New Hampshire
May 24, 2015
Product Review
I use Starline brass exclusively for all of my pistol / revolver reloads. Rarely do I use factory ammo cases anymore. I have yet to see even one of my Starline brass cases fail in more than 8 reload cycles. Starline produces a great product at great prices with convenient free shipping / handling to my doorstep.

Jeff Flowers
Dover, New Hampshire
April 28, 2015
Product Review
I started reloading just over two years ago. I did some research and found Starline brass. Starline fulfills my .357 magnum, 45 ACP and .45 Colt needs. Starline brass is excellent brass and I always get perfect results. Some of my brass is on it's 6th reload cycle with no signs of wear or loose primer pockets. Starline is quality brass and is reasonably priced. Highly recommend.

Duane Goings
Weathersfield, Vermont
December 02, 2014
Product Review
Top quality at an incredible price. Have some that have been loaded 20+ times.

Dan Carpenter
Lexington, Kentucky
October 24, 2014
Product Review
I've been reloading for more than 40 years. The first time Starline brass was recommended to me I was skeptical. But after reloading thousands of them and seeing first hand the quality and dependability of Starline brass. I am convinced that no other brass is even close. Starline is my first choice!

Dan Carpenter
Lexington, Kentucky
October 24, 2014
Product Review
I've been reloading for more than 40 years. The first time Starline brass was recommended to me I was skeptical. But after reloading thousands of them and seeing first hand the quality and dependability of Starline brass. I am convinced that no other brass is even close. Starline is my first choice!

AL Davis
Rose Hill, Mississippi
October 24, 2014
Product Review
I have used Starline brass for a lot of years as often as I can. If it were possible it would be the only brass I would use. My handloading is about 98% handguns, magnums and standard calibers. It is without a doubt in my opinion the best brass avilable, hands down.

Tom Smith
coos bay, Oregon
July 29, 2014
Product Review
As a dealer - Back in the 1980s I ordered some .357 brass from Midway, if I recall correctly. I was also a shooter also so I kept 500 or so for myself, I will never be able to tell you just how many times I have reloaded that strange looking brass with the two stars for a head stamp. At first I was concerned, but hear I am 2014 some 30+ years later trying to buy some more. By the way I am still shooting some of that old brass from the 1980s and it has been annealed several times.

mark johnaon
north plains, Oregon
January 09, 2014
Product Review
best straight wall cases I have ever used in 35yrs of handloading. also one of the least expensive. awesome value.i wish I could get bottleneck brass of equal value

Gus Themaras Jr
Irvine, California
April 30, 2013
Product Review
Excellent brass! This brass has lasted through many full powerhouse loads and still begs for more! This brass is the only brass that functions flawlessly out of my old speed loaders that have been banged up and abused, 100% drop rate every time where as other brass will "stick" in the speedloader. I will be buying this brass exclusively when it comes to 357 magnum!

Scott W
Ca, California
April 16, 2013
Product Review
Brass reloded nicely. I purchased nickel plated version from a third party. The brass was great the primer pockets were a little tight with the adition of the nickel plating but after the first firing the primer pockets became perfect fit. Besides tight primer pockets for the first loading the cases were pirfect and free of any defects. Will definatly purchase more in the future.

Mike Taylor
Akron, Ohio
March 31, 2013
Product Review
It took a while to get, but this brass is second to none. The primers are firm but not to tight when priming, and the cases do not need sizing for the first load. I've had to size other brands of brass for the first loading but this is right in spec. I purchased a couple of hundered .357 casing from Starline over 20 years ago and much of is still good after at least a half dozen loadings.

Stan Watson
Lawton, Oklahoma
March 31, 2013
Product Review
I have now loaded and fired three times the last lot of 1,000 cases I ordered. They are holding up very well, and I load maximum loads using H-110 and 158 gr. HP/XTP. No complaints!!

Howard Nall
Corning, Arkansas
January 04, 2013
Product Review
I have had not problems with this brass its first class, but you need to size just in case

Joe S.
Central, AK
July 16, 2012
Product Review
while only on my first loading of this brass, it has been a good product. i have found no flaws in any of the brass i have loaded and all has seemed very consistant. i would not hesitate to own more Starline brass!