55g Hornady, 27g of Benchmark, Lapua brass, cci 450= 3500 fps
Rem 700 Sps sporter, 3/8" groups-12T; 223
Work up to this load in your bolt action 12 or 14T rifle
24.5g-25.5g works well in 9T barrels that I have shot with 55g Hornady sp.
I shot two does on a pond dam a couple of years ago, 270 yards with 62g Barnes triple shock, they both ran about 75 yards...I did not like that, AR15 with a 6.5x20 leupold, Bushmaster Heavy barrel
I can not answer your question on accuracy of your choices, but remember that the kill zone on a deer is sizable, keep the copper out of your barrel.