Scruffy is absolutely correct. The size (diameter) of the bullet will not have any bearing on how small the group size (center to center) is.
Like I said before, If there are enough participants in each caliber, I will split them out. But if there are only a couple of .30 caliber shooters shooting, I'm gonna put them in with the rest.
If I have a bunch of .22 centerfire shooters, a couple of .30 cal shooters and a couple of big bore shooters, I'll probably split it into two categories; .22 centerfire shooters and .30 and above.
I'm just kind of going to fly by the seat of my pants on this one.
When I get all of the cards, i will post how many of each caliber I have. Then you guys can have some input on how it's split up also.
Sound good?