Hello all,
Long time viewer. learned a ton of knowledge even after loading and shooting since 1970.
Need some help please,going to build a 6.5tcu 1 and 8 twist rifle
Bullet 120 a max bc .465, and 123 a max bc .510 / .264 dia.
powder h-4895 and imr 8208.
what velocities can I expect? approx...