I use full in my BPS. just be sure not to use the extra full turkey choke.you can mess it up bad,it's not made for that large of a shot size.
my BPS 3" with the full does a great job for deer and hogs.
try several different brands and different chocks to see which works best for your gun.

I am not a hunter I am a whitetail population reduction specialest

remember keep your back to the sun, your knife sharp, and your powder dry.