Joe,
never had any problems with cratering unless i was trying to shoot too hot,,,,,no extractor or ejector problems with any of mine either, I do know one person who had problems blowing the extractor out of his 2-3 times, when he reduced his load of N133 back down to around 25 grs it cleared up, he was using a digital scale that had been dropped or bumped and was off over 2.5 grs (was reading low). My 223 has over 3000 rounds thur it, 24.8 grs N-133 and 52 gr Fowler FB Match Bullets, it shot 52 gr Sierra Match just as good too,,,,,,,,,,,,,,,,,,,,,,,,,,I used Leupold rings and base's on the first two (223 & 30BR), but the rest have Talley Rings and Base's, 3 Weaver scopes, 2)T24's, 1)T36 and 1) Burris Black Diamond in 6-24x50 with a 30mm tube,,,,,,,,,,,,
the wind is my friend,,,,,,,,,,,,,,,,,
DD