The 10MM Auto was designed primarily for law enforcement but was quickly abandoned in favor of the .40 S&W. Now making a comeback, this .40" caliber handgun is more powerful than the .45 Auto with higher magazine capacity.
bought 2000 rds of 40 s&w...shipping was fast, got over count of what i ordered. brass was beautiful, sized deprimed.. but so far out of 500 rds fired i had 4 jams because of buldged cases....i suggest that if you are going to use in life threatening situations measure every case .....i will still buy from diamond k but i will measure each case because my life may depend on it
rick marsh Aug 28, 2014
Have nothing but good to say about diamond k, good prices, good quality, but most of all is the service
Terry May 8, 2017
On 4-28-2020 my son,Jeremy , ordered us 300 once fired 44 mag brass. I do not remember the exact date in arrived, but it was only 4/5 days. We had 1 44 special and 5 44 mag with small primers the rest were extremely clean and had no "junk". Very, very pleased and if needed will be a repeat customer. 5gg23
Billy wayne Goodwin May 4, 2020
Having picked up a lot of range brass over the years and cleaning it myself, it is most pleasant to open up an order from Diamond K and seeing bright and shiny ready to reload brass right out of the bag. Customer service, quick shipping, clean brass, all these describe receipt of any order from Diamond K. Economics, almost forgot that one as folks can make calculations to be sure and can find perhaps cheaper elsewhere but seriously doubt one will find it cleaner or better sorted. I would rather have it like this as opposed to dumping an order of "range brass" into a tumbler and having to do it myself.
West1ley Apr 11, 2017
A few weeks ago I had ordered 1000rd ea of .9mm and .223 and got another 500rd of FREE .9mm. The Free 500 rounds of brass was just the icing on the cake. I was very pleased with my order and it arrived mui pronto too. I just ordered a 500 rd each of .357's and .223 and I get another 500 free rds of .9mm for fathers day. You guys are keeping me happy. I will continue to come here for all my brass. thanks guys
Mark Robbins Jun 16, 2017
I've ordered 41 magnum brass I have also ordered 4440 brass all of it has been clean very satisfied with my order will order from them again
John Stephenson Nov 8, 2018
This is the place! I have been purchasing brass from these fine folks for years and have never been disappointed. The shipments are very quick, there is always extra brass, a large selection is always available, and the product is provided exactly as advertised at a very good price. What more could you ask for? I just sent for some more brass and will no doubt be delighted when it arrives.
John C Clark Jul 22, 2016
I just made my first purchase from Diamond K Brass and I must say, WOW. The acknowledgement to the order and the shipping were a lot faster than I was expecting. And as they list their quantities with a + sign there will be a few extra in there to accommodate for any bad cases that may have slipped by. All I can say is, "You've got my business". I am glad to highly recommend Diamond K Brass for your brass and reloading needs.
Larry Jones Jun 13, 2016
Bye-bye teardowns all the time I'm thankful that they have them cuz when you think of the cost to reloading you get the bullet head you get the cartridge and the primer in most cases occasionally some are missing or damaged but when you think of the overall cost of the components you're saving money and most of the time they send extra brass or I should say teardowns and I usually get the 99% usable product so I'm very happy with what they send me and it's a reasonable price for shipping and they carry just about everything else you need except for gun powder and primers so it's a One Stop Shop all thank you for having these products William
William Starostka Sep 12, 2018
I ordered 500 380 auto and 223 with bullets. Only had one case that was unusable due to damage and a few other calibers that I don't load that were in the mix, I gave them to friend that does load them, fast shipping
I will be buying again soon
Thanks