North61, you might want to try some Buffalo arms .228 bullets, I believe they come in 45, 55 and 60 gr. I shoot the 55's for coyotes.
Link to Buffalo Arms .228 bullets, 45gr are on page one.
https://www.buffaloarms.com/reloading-supplies-accessories/jacketed-lead-copper-coated-bullets?p=2I have five boxes of S&B 70gr SP but haven't fired them for a group yet.