I have several brileys, kicks and a patternmaster. All good chokes. I keep records of my patterning percentages with brand, shot size, charge and distance, ect. Spent several hundred dollars this year on ammo trying to find some good combos this year with a new gun. I'm fanatical about patterns. Not to say you can't do it with factory ones. The brileys are excellent you only have to buy it once so it's worth a few extra bucks. I have a briley light modified. It's my go to duck, dove and sometimes pheasant choke. Great choice for crows. The actual constriction varies a good bit from gun to gun but the light mod will be great for what you want to do.