The first thing I did was go straight to the range w/ my No4 ! I took my usual South African Ball and I've scoped the rifle with a Blazer(Simmons) 4-16 x 40 AO. It seems to shoot differently now that I replaced the bolthead with a #2...not as accurate as before, but I didn't check my screws, although I loctited the band screws and action screws too. The best I could do at 600 yards was chest and groin shots. The local P.D. was foolish enough to put out a steel 3/4 silhouette at that range, thinking no one would see it...HA HA! I couldn't duplicate any head shots like before from another similar target at 700 yards. And, since the bullet trajectory of .303 is closer to a .45-70, I ran out of elevation clicks so the farthest I could zero was at 400 yards...so if anyone was thinking of putting a Blazer on their Enfield, beware... My friend was there with a Mosin M39 that was tricked out with scope and synthetic stock, and with his homemade loads was getting 3-shot groups of 3/4 inch(he was using .308 bullets), with 2 flyers widening the group to 1 1/2". He was puzzled by this until I told him that his "D" bore M39 used .310-.311 bullets! Then he had a V-8 moment!