jmr40's absolutely correct for short, blunt and low velocity bullets. For example, consider the .32-40 which was a favorite black powder round for competition over a century ago. For 1:16 twist in one, you should shoot the lighter 150 to 170 grain bullets at those 1400 to 1500 fps speeds. A 1:14 twist is ussually what is required if you wish to shoot 200 grain bullets in a 32 caliber and a 1:11.5 twist is what some are using to shoot 235 grain bullets at less velocity.
US Navy Distinguished Marksman Badge 153
Former USA Palma Team Member
NRA High Power Long Range High Master
NRA Smallbore Prone Master