Thread: 6x45/6mm223 projectiles ?

I’m in the process of getting a Tikka T3 rebarrelled to 6x45 / 6mm223 .
The new 6mm barrel is a 1 in 8” twist and I’ll be using a Waters magazine to allow for longer cartridge oal .
I want to run projectiles in the 75gn - 90 gn range .
Because of the modest velocities that will be achieved ( compared to the usual 243 / 6mm CM etc velocities) I’m trying to narrow down my projectile choices to find a 6mm bullet that will expand reliably at the slower speeds .
Any suggestions ?