wildchild
Gold $$ Contributor
Looking for experianced help from people who have chambered, profiled or built there own ar15 barrels. My question is about the chamfer lead in the chamber mouth. I bought a 556 chambered barrel and had it recut to my wildcat (100% clean up on a 556 chamber). It's based on the 6mm Haggar. It's a 40 degree shoulder moved forward about .040. It dont feed as it catchs just past the shoulder on the body in the chamber chamfer area. I as assembling a 204 shilen upper and noticed a huge chamfer on its chamber mouth compared to a 556. Id add pics but it's rediculous hard to on this forum.