Purchased a Howa 6.5 creedmoor 20” barrel cerakote model recently. Non heavy barrel. Have shot around 40 rounds through it. Shoots Hornady 143 Eld x pretty good but was looking to shoot something a little lighter and faster. Don’t necessarily have the budget to purchase multiple boxes of different ammo. Have shot Hornady SST and American Whitetail 129 grainers during the break in process. Thanks for the suggestions.