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Old November 15, 2012, 09:02 PM   #3
Senior Member
Join Date: April 28, 2012
Location: NY
Posts: 184
I did similar thing with my AR15. Blew up my upper with bad reloads. Turned upmarket,I've used pistol powder in 5.56 case. Didn't really seem like a much , just bigger bang that usual, but it did destroy BCG and upper receiver was split in half.
I was fine. Lesson learn. Laded thousands of rounds since for rifle and pistols since.

Getting back to 5.7 , I'd like to here some inputs as well,I'm kind of on the limb between 5.7 and .22TCM
Valerko is offline  
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