I found a good deal on some 120 grain TSX cartridges and bought 2 boxes. It is quite light for a 6.5, but that is due mostly to the mono-metal material. Advertised 2910 fps, which is quite fast for a 6.5 creedmoor. I pulled one of the bullets and it is as long as a 180 grain 30-06 PSP. Tough bullet, plenty of velocity to still open at long range, plenty of sectional density to penetrate--too good to be true, or is the relatively light weight going to be a disadvantage?. I just don't know how to compare a copper bullet to a lead one, but it is certainly interesting. Anyone used these yet?