My Dickinson is choked .008" and .008", fixed chokes. And, I limit myself to 35 yard dove kills, max. Everything has to be right for me to stretch it to 35, and that's with 3/4 oz. loads. I've considered having the left barrel backbored to get a few more thou choke in it, but prolly won't 'cause I would hate to mess with the hard chrome lining. Thirty five yard "kills" will usually not be "dishrag dead" kills on doves, and they will often need "dispatching". Thirty yards and under are as dead as with a 20 gauge.
Pattern density is what kills birds, not bore size. A no. 8 out of a .410 at 1165 fps is exactly the same as one out of a 12 at that same velocity. But, when you decrease pattern diameter to gain density you increase the skill level necessary to put that smaller pattern on target. My FAIR Iside Tartaruga Gold .410 has a choke tube as tight as .034". That's super, super tight for a bore that small. I still like the Dickinson better, but I admit i wish it was choked a bit tighter.
