RE: Recommended .300 Win Mag Ammo?
If larger then deer stick Accubonds. Could also try winchetser new XP3 supposedly a step up from the accubond but has a bonded core/polmyer tip and high BC.
I reload but found Federal premium& Hornady ( regular ammo notmagnum or light mag stuff) more consistent then winchester ammo. You could try the Interbond by Hornady as well, similar to the Nosler Accubond loaded by both Federal and Winchester.I have used the nosler accubond personally to harvest deer to moose and it worked just fine.
If deer is your main concern the Ballistic Tip/SST/etc is just fine. Actually the nosler ballistic tip has been my deerbullet for years and never let me down on the range or in the field.