by Detroit Ammunition Company|Item # 300BLKEC250


7 in stock (can be backordered)



250 pieces of 300 AAC Blackout brass that was converted from once fired Military auctioned .223/5.56 brass mixed headstamps. LC,TAA,WCC,etc This brass was tumbled in stainless steel media. It has also been full length resized, deprimed trimmed to SAAMI spec, primer pocket swaged, then tumbled in corn cob/walnut media. This brass is as close as it gets to new brass

Additional information

Weight 3.5000 lbs
Dimensions 6.0000 x 3.0000 x 1.7500 in

12 reviews for 300 AAC BLACKOUT BRASS (250ct)

  1. Rated 5 out of 5

    jrcoffee62 (verified owner)

    Brass very good, looks almost brand new. Trimmed to uniform lengths, sized well. Bought 500, 25 were mixed headstamp, all the rest were Lake City’s. Recommend to friends, will be getting more from Detroit when needed. Really good deal.

  2. Rated 5 out of 5

    Michael B

    The brass is great clean sizes are great price was really nice for quality of brass i received if you need brass this is the place to go thanks for great product i recommend them to anyone looking for 300 blk out brass

  3. Rated 5 out of 5

    David F. Worley

    Some of the cleanest brass I have ever bought. Deprimed, shiny clean, and ready for you to work with. Very fast shipping and a knock out price on hard to find 300 AAC blackout brass.

  4. Rated 5 out of 5


    Perfect service for a man as impatient as me, had the brass in 2 days and it is better than expected. All perfectly sized and shiny! Loaded, shot, and reloaded reliably, will be buying all my brass from them from now on.

  5. Rated 5 out of 5


    Good price, good brass! Will buy again!

  6. Rated 5 out of 5


    Great brass at a great price. No issues with the brass while reloading.

  7. Rated 5 out of 5


    Brass was exactly as described. Within SAAMI specs and could be mistaken for new brass.

  8. Rated 4 out of 5


    Very clean brass, inside and out. Quick shipping. Would have given 5 stars except for a few pieces that had creases and dents. This should not be a problem and more than likely shoot out the first time I fire them. Will buy from again.

  9. Rated 5 out of 5

    Steven T

    Outstanding job on the cases . I will purchase from you again

  10. Rated 5 out of 5


    Absolutely the quickest service I’ve had with any product. Quality is excellent to boot. Can’t say enough on how pleased I am with my purchase.

  11. Rated 5 out of 5


    Cases were just as advertised. Correct length, clean, and sized to correct standards. Excellent item. Will be purchasing more of them soon.

  12. Rated 5 out of 5


    Looks good with no sharp edges and primer pockets clean. Just loaded up a 100 of them and all went smoothly. Did have to ream the case neck out before putting a 115 gran gas checked bullet, but I have to do that with any new brass. Good price and a solid job.

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