same answer for question you asked, some do, most probably don't. I tend to find factory loads give me 1-1.5" groups at 100 yds and that's fine for hunting. I just purchased two different weight bullets to see if the TC Omega will finally shoot well. I just got it back from the factory. Right now the Knight disc, TC Triumph, TC Fire Hawk, and Traditions Pursuit all like the TC 250 gr superglide saboted bullets behind 100 gr of Black Horn and Remington ML 209 primers.