You could waste the money on trial and error by experiementing with many of the chokes available out there.... or, you could buy the best of the best and be done with it? How about the choke that sets todays standards by which all chokes are compared?

2008 NWTF 1st place ALL 5 Divisions/ 11 Championships in 3 years !!!

Retained 3 WORLD Shooting records in OPEN, HUNTER and MUZZLELOADER..... thats consistent performance!

They don't get any better than the Black Diamond Strike from Indian Creek Shooting Sytems. You've got to check 'em out and see why so many have made the switch. I know we can't believe how much more impressive all of our turkey guns are shooting with this choke system installed.

http://www.indiancreekss.com/home.htm

You can also find them here as well,

Here's the 20 gauge Rem model
Midwest Turkey Call Supply
http://www.midwestturkeycall.com/detail.asp?pid=IC12&cc=T&dn=1&link=

Bass Pro Shops/Redhead
http://www.basspro.com/webapp/wcs/stores/servlet/Product_10151_-1_10001_10200322_425005007_425000000_425005000_425-5-7