Hey all, the 12 ultra slugger was bought at dicks and the turkey barrel was fitted at nef. As for head spaceing I dont know how to check, but lock up is tight with no noticeable wobble. The shells were 12 gauge remmington core loc and 10 gauge winchester turkey load, one of each did not fire. I thought by taking a little off the hammer where it meets the reciever would make the fire pin protrude a little more and fire the shells? Ill check back for any answers in a little while. Thanks all and
GOOD HUNTIN!!