Will definitely try the BT's. My last rifle loved the 150 TTSX's. Hoping new rifle will be ready in a month or so. Emailed Borden today. Will still have to send off to stock guy for inletting and bedding. 100 degrees here so would not be shooting it anyway right now. I sold my 280AI 700 build to someone a few weeks ago. I am going do some work up loads in anticipation of the new rifle. Think am going to start with N165 and 150gr TTSX and 150gr BT. Unfortunately shaping up to be a whitetail only year for me. Have some 168gr Berger's to try but there is not much point this year. My shots will never be over 400y. Have never shot a whitetail over 300y.