RE: Dang Flyers! Why? Why? Why?
 

You might try weighing your conicals sometime air voids occur when casting makin some bullets lighter causing flyers.. This has happened to me with pistol and rifle cast bullets. With a large conical I can see this could easily happen. This is just another varaible.

RE: Dang Flyers! Why? Why? Why?
 

Or up your charge more. When i first started using triple 7 in my winchester, my first outing i got 2 1/2" groups. The next time i bought more bullets i upped the charge to 80 grains triple 7 (92 grains) i was back to shooting 5/8" groups @ 100 yards. Just have to fiddle around to find the right mix.