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.357 SIG

Looking to reload the popular 357 Sig once fired casings. Diamond K Brass sells the best once fired 357 Sig brass online. We offer once fired reloading supplies, brass components, and bullets for sale. Order online today and it ships tomorrow.

Diamond K Brass offers high quality 357 Sig once fired brass ready to ship.  We offer our 357 Sig once fired brass casings in both Brass and Nickel, anywhere from 500 pieces to 5000 pieces. Diamond K Brass offers our 357 Sig once fired brass cleaned from any debris. The 357 Sig once fired brass will consist of mixed manufacturer headstamps.

Also check out our 357 Sig Nickel casings.  These second to none 357 Sig Nickel casings that have not been processed.  

Need projectiles to complete your reloading process?  We have them.  Take a look at all the options we offer to go along with your once fired 357 Sig brass or nickel casings.  

Diamond K Brass is known to carry the highest quality brass available.  Our customer service is the best in the industry.  Check out all of our testimonials.  

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NEW .357 SIG STARLINE 500+

NEW .357 SIG STARLINE 500+

Factory NEW 357 SIG Brass - 500 ct

All Starline headstamp yellow brass finish.

Starline's manufacturing process involves, consistent metallurgy, precise tooling, tight quality control and 40 years of industry experience. Their brass is guaranteed to have flash hole presence and to be of the correct length and diameter. Unlike some competitors, Starline’s brass is vertically drawn, effectively minimizing wall thickness variation. In addition, they anneal their cases between each draw to ensure consistent metallurgy in all lots. Simply put, they are unwavering in their commitment to quality.

$125.00

 
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Testimonials
The deal on the 7.62 x 29 amazed me upon survival.I
way better than seller described. 98% good shape
John
Mar 9, 2021
Bought a 500 count bag of 200 gr .45 colt SWC projectiles from Diamond K and found some RN mixed in with the lot. I took a pic and emailed to the company just to inform them. I wasn't looking to give them a hard time, complain, or whine about the issue as I can still reload them but I wanted to let them know.

Doug K. (the owner) replied back immediately, apologized and asked if I wanted him to replace the odd ones. I replied with a negative-that it was not necessary; but for the owner to validate my concern was an above average response to a query.

More American businesses should learn from companies like Diamond K, as they take care of customers equally. Be it a small time reloader like me from some podunk town out west or a big ticket purchaser who might load commercially.

I am now a fan and a a loyal customer.

(My wife thanks you. ;-) hahaha)
Ray Rojas
Jul 12, 2021
I've been buying from these folks for a while and the best comment that I can give is - I wish that these folks worked for me. Great service, super quick shipping. These's a lot of businesses out there that could learn something from this company.
Linda C.
Nov 7, 2014
I recently ordered 5,000 9mm and 5,000 .40 S&W cases to load in a new progressive press. I've sorted all the 9mm brass and found 3 Berdan primed cases, 2 9mm Makorov cases and one case with a neck that I deemed too damaged to load. The remainder of the cases were fine. In my opinion, 6 cases out of 5,000 that were not usable is fantastic. I've sorted about half of the .40 cases and have found 1 9mm case stuck in a .40 case and 1 357 sig case. The rest have been perfect. I have found my exclusive brass supplier!!!
Rodney Baker
Mar 3, 2014
I have ordered from these DKB several times. This time, my order was about ten times what I normally get and numerous calibers. The staff there must stay quite busy, since as usual, I got my order in almost record time. Keep up the great work !!
Joel C.
Nov 3, 2016
I came across this outfit via an interweb search. I ordered 1000 LP .45 ACP brass, unpolished, unprocessed, etc. Shipping was prompt, I reieved the brass 3 days after my order along with a tracking number notifying me the order had shipped. I didnt count the brass however I have no doubt that there is at least 1000 in the box that was sent. Also, the brass arrived very clean despite it not being processed. Very pleased, will purchase again from Diamond K!
JL
May 26, 2018
Received my 5th order of .38 special nickel plated brass 500 lot.Will be back soon.Shipping is fast.The best site for brass period...
Paul D.
May 17, 2014
I have now purchased over 2500 rounds of once fired brass from Diamondkbrass and I couldn't be happier with their product, service and friendly people. They are great. I will always look to them for my reloading supplies. Tammy and all the crew, thank you very much. Rod
Rod Whitney
Feb 24, 2015
I have done business with Diamond K for years, started in 2008 after the presidential election. Quality products fast shipping and very reasonable prices for the high quality. You can not go wrong. They even e-mailed me once t o want to know if I wanted to fill the of because of a special, and I said yes.
clifton crowson
Aug 28, 2018
I have to say that i am very pleased with the services Diamond K Brass has to offer. I love to shoot and love to reload. ordered 5.56 Nato brass and 5.7x28FN. very clean and good quality. I will continue my business with this company and will refer them to any others seeking good quality brass.
Roy Flores
May 8, 2014
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