223 to 300 blackout case trimming jig
thingiverse
This is a trimming jig I created to cut 223 brass down to 300 blackout brass. It's made to be used with the Harbor Freight mini cutoff saw. The tips that are cut off should fall down in the middle and go to the back of the jig. You can then use the next case to push the cut case off to the left, and the cut case will fall to the front.
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