If you've got the locally-fabricated Now, these two cartridges look ex- M149 subcaliber device (FSN 1005- actly alike, so you can't tell 'em apart 878-0204) for spouting 7.62-MM tracer by eyeballing. However, there're two bullets from M67 90-MM reckless rifles, other ways to identify 'em: *be sure you use this ammo: 1. (heck the lot numbers These are the ONLY M62 cartridge with GMCS (gild- (hk Inumber numbs These a the ONt ing metal clad steel) jacket lot numbers to use at the present time: ing metal clad steel) jacket. FA-1 thru FA-81 NCTHING LC-12000 thru L-12303 E L5E. r RA-5000 thru RA-5224 WC( 6000 thru W((C6088 2. Give 'em the magnet test, like so: L L If you by mistake use the M62 car- tridge with GM (gilding metal) jack- eted bullet, you'll wind up with no tracer at all. The ammo may break up and stick in the barrel or give you poor accuracy. You might even get hurt by fragments in the backblast. Put a magnet (the dime-store variety will do) against the bullet. If the mag- net sticks, it's the right ammo. If the magnet won't stick, it's the wrong ammo. Turn it in pronto. If there is still any doubt in your mind, turn the stuff in anyway and be sure you get your ammo from batches bearing the listed lot numbers.