Brass is all gone.
Thanks for your support. I'll be back making 300BLK brass Jan '15. Until then, keep your powder dry and your face in the wind.
*** I finished trimming and bagged the brass up last night and just now when I was cleaning up my workbench, I went tot put my caliper away. I closed it and the screen read "0.0020". I check zero before I start trimming, and randomly check pieces of brass while I'm trimming, usually the last of every other handful, and adjust the trimmer accordingly. I trimmed a 2 gallon bucket of brass last night, and somewhere in that bucket of brass the caliper lost zero, and I readjusted the trimmer based on the caliper readings. So instead of trimming to 1.3600" +/- 0.002", I was trimming to 1.3580 +/- 0.002". ***
Do you shoot both supersonic and subsonic and want a sure fire way to tell which is which? Use converted M200's for your subsonic rounds and know what you have.
I have 2 lots of of 300BLK brass for sale.
The first is 3,500 3,000 2,000 1,000 750 500 pieces converted from LC M200 blank cartridges.
The second is 750 250 00 pieces converted from normal 556.
I will update the quantity remaining as the brass sells.
Brass is mostly LC, but there may occasionally be something piece of something else. I only saw a few pieces other than LC as I was processing it. Call it 95%+ LC.
For those not familiar with M200's, there is an excellent thread here:
Brass has been formed as follows:
• Tumbled the brass clean
• Cut it to rough length
• Wet tumbled in stainless steel media to remove any burs
• Annealed on a Bench Source annealing machine
• Formed into 300BLK on my Dillon 650 with 2 Hornady 300BLK dies
• Washed in hot soapy water to remove the case lube
• Primer pocket crimps removed as needed (M200's dated 2002 had crimped primer pockets, 2003 and after did not.)
• Trimmed to final length (nominal 1.360") on a CTS G2.5 power trimmer
I check random pieces of brass for correctness with a Sheridan Engineering case gauge and verify primer pocket crimp removal with a Swage Gage from Ballistic Tools.
Asking price: $125/500 shipped. Discrete Paypal accepted. E-mail is the fastest way to contact me.
Please post an "I'll take XXX" here and shoot me an e-mail.
I'm happy to answer any questions you may have.
This will likely be the last 300BLK brass I convert as I am scheduled to deploy again in December.
EDIT 29 OCT: I had a question, asking about the purpose of the knurling on the M200 cartridges:
The knurling is intended to give soldiers tactile and visual confirmation they have blanks when they can't see the bullet. Like in 1911 press check to see if the chamber is loaded and you open the slide/bolt far enough to see the bullet. Supposedly you can feel the knurling in the dark, although I haven't given that a try.