What builder said...I have had better luck with Noslers in my 243's than I have with Barnes...IMO either the Ballistic tips or Partitions have performed well in my 243...but like Sheridan said...what rate twist do you have? I have found that the 100g Partitions have performed the best in most every 243 I have owned....and I have had several makes and models from Browning to H&R...