Have an extrema that has not even been fired enough to give a proper review- it did well on the geese, and fits me great. I use a 12 with 2 3/4" shells,homerolled of course, to duck hunt. Sometimes it's a 686onyx with a 3 1/2" chamber~just in case some honkers show up.I goose hunt with a browning gold lite 10ga, because it works very well with my handloads- something the chronograph confirmed, although I got ALOT of time/practice with the 10. I wore out a steel reciever 10ga browning gold shooting some 5 years worth of religous goose hunting. Personally I think (don't know) that the 10 is much more versitle with handloads,but, the 12 3.5 is about the same. I'm just more comfortable with the 10ga wilst hunting the gooses. The online options are rather limited but I'd start my search with auctionarms.com then gunsamerica.com. Good luck and don't mess with a pump if you can afford not to- I have a bps 10 and it hurts to shoot overhead. BTW~ the 26" barrel has become my choice, have a 30 also, but it balances better for me.