I've asked similar questions not long ago but have more.I want to shoot prb in my shotgun. I've got .690 and .715 balls. The .715 balls fit just right through my IC chokes with no patch.Too tight for a patch.The .690 balls fit perfectly in the full chokes with no patch The .690 balls would probably fit well in the IC chokes with a thin patch.I'm going to shoot some Saturday.Will a ball shoot accurately with no patch and just an overshot card if it comes out of a choke that it just fits.The largest choke I have is IC and I'm not buying any more.I know the ball would be loose in the barrel after loading and sitting on the powder and a wad but when it comes out it seems like it would straighten up because of the choke.Am I wrong in my thinking.The .715 balls will not work with any size patch.The .690 balls would work in either IC or Mod choke depending on patch thickness.So,what do y'all think.I would like to be able to shoot both size balls so not to waste my money.I even thought about filing off the bump on the ball for a better fit.