When I think of choke, I think in terms of constriction in thousandths of an inch. The "full, modified, etc., nomenclature carries a lot of baggage with it. I don't bore my chokes out to suit a load, nor do I chose a load to meet the percentage pattern published for constriction. It's all just a guide and an expectation that full choke will be tighter with a given load than modified, IC, etc.. Better time spent doing something more productive like shooting or having a beer.