I picked up a 5.45X39 upper a while back wanted to take advantage of that cheap surplus ammo. Well bought a tin of that 7N6 1080 rds. for 130.00 at the last PDX show, and I'm not sure how I should go about opening it. I can see that mamma's kitchen can opener isn't gonna make it, and though I have a shop full of tools, wouldn't want to do anything foolish. Also if any of you have shot this stuff, wonder how it might differ from the 60 gr. silver bear I've been shooting. I know it's corrosive, and will be running in my S&W M&P upper. Thank's in advance for any info...Swoop'