RE: .243
Nosler and speer make a 107 Grain bullet. i think Barns does too. If your looking for a Hunting bullet, use a sierra 100gr Game king BTSP
Or the nosler Balistic tip in 95gr. I also use the hornady 100Gr BTSP to hunt. That 100gr bullet with 3000fps FLAT shooting velosity will take down any game in north america out to 250 yards. Except a moose or Grizz bear.
Harry