Dont want anyone to think that coneing hasnt worked, the one John T did in his mch shop seems to be dead on as always ( SF Hawken ) and I did one with a rotory file wraped in cloth as shown in a copy of MUZ Blast and at best I lost a 1/4 to 1/2 " at 50 yds and got instant loading with that 2nd one, great for hunting!! Fred :hatsoff: