I think the CXL 250s for your setup would be good, I use the 150s(shoot 56#) they weigh 280 gr. and go through the chrono at 280 with my Conquest 3. They are pretty durable and I would recommend unibushings and gnocks for rear end protection. I like them as you can get good speed out of low poundage, I can' t get any aluminums close to 280 gr.