OP contact Bartlein for weight. Fwiw I had two 260s. Unfluted. 23 and 24"

Would do 21-22 max in any standard non mag round. What are you building?

Personally would flute a 3 or use a round 2B or 2 for a sporter.

My 6.5L was 22 or 22.5 in Light Palma. Later had cut to 20 and fluted. Really love it but it's double duty for range work and stand hunting.

20-22" is a sweet spot for me. 23 or longer would be for larger capacity rounds in lighter contours. Just MY preference.

Re build weight and balance. All add ons matter. Stock. Scope. Mounts. Bottom metal or not. Etc.