There's a website you can download and print a "Turkey Target" from. I'll have to go find the hyperlink for it and get back here and post it later. What I also did was to photocopy or (scan & print) one of the "store-bought" turkey patterning targets and used them for my pattern testing. This works great if you have an OfficeJet or separate scanner/printer.
These "Turkey Targets" have a ghost view silouette of the head/neck/body junction of a turkey and show the brain and spinal column so you can see whether the shot hits a "critical" area or is just a "flesh wound". I put a 1" blaze orange target sticker on the target for an aiming point in order to determine the "pattern center" with respect to my "point-of-aim".
It is often necessary to shoot many different brands, shell sizes, and shot loads to determine which brand/size/load your shotgun likes best and puts the best pattern and "pattern center" to your "point-of-aim".
:-D :eek: :lol: :wink: