There are five rounds of betting. In limit seven card stud, all bets and raises must be equal to either the low limit, or high limit bet size, depending on what round it is. In the first two rounds, all bets and raises must be equal to the low limit bet size. In the third, fourth, and fifth rounds, all bets must be equal to the high limit bet size. If, for example, you're playing 3-6 seven card stud, all bets in the first two rounds will be in increments of 3 dollars, and all bets in the last three rounds will be in increments of 6 dollars. A maximum of 3 raises are allowed per betting round.