FMJ (full Metal Jacket) are copper (metal) jacketed bullets that completely encase a led core minus the base.
TMJ (total Metal Jacket) eompletely encases the lead in copper.
The best way to tell a FMJ bullet from a non FMJ bullet is to look at it. If the proectile is visibally all copper and no other materials (IE hollowpoints or polimer tips) than it's a FMJ.
Or you can look at the name,
BT (balistic Tip)
HP (hollowpoint)
SP (spire point or Soft point)
Hope this helps.
Note :
I have yet to start reloading.