Has anyone had trouble with accuracy from a good match grade 1911 conversion to 400 Corbon? I went looking for a smith that specializes in 1911s and he would not do it. Same guy did me one on a Kimber classic, and it's accuracy is very good. The smith said maybe he has just run into some bad barrels (Les Baer, Ed Brown, etc). Anyone heard of an inherent accuracy problem with this cartridge? Thx, wolfz