I have a #1-B SS Lam in 7mm STW, with factory ammo, Nosler 160 Accubonds, my last range trip I shot a 3 shot group of .78 inches at 200 yards. My dad has a #1-B Sporter in 243, he can take a ten shot group of factory Remington 90 grain Scirrocos at 100 yards and cover it with a nickle. Just a matter of finding what load each rifle likes.