Posted On: 6/22/13
By: Question Man
A: There are little to no differences between the TMJ and the FMJ bullet when it comes to the shooting experience. However, the TMJ bullet extends the jacket around the base of the bullet, which is normally not done with a FMJ bullet. With the extended jacket covering the base of the bullet, the lead core is no longer exposed.
Most ranges are not particular between the two, though it seems non toxic and lead free ammo are becoming more popular for indoor ranges in 2013. This may vary from range to range. With the interest of lead exposure in mind, these non toxic rounds would be preferred over the regular FMJ rounds.