Thanks for the reply terry-1. My barrel is a Super 16 full bull. Not sure what the twist rate is, but I believe the 55 gr are going to be best in my barrel as well. I'm just not crazy about the price tag on those trophy bonded bullets. Witch that much cost, I'll just stick with my 7-30 for deer. The 55 gr Nosler BT's shoot excellent in my barrel, but not sure if I even want to attempt to use them on deer.