I need a gunsmith to repair and/or replace the extractor for a Browning B78 HiWall single shot rifle. The rifle shoots fine but the casing will not extract from the chamber. Looking closely at the extractor, I can see the extractor just slip under the head and not engage into the extractor groove on the brass. It also looks like the extractor is nicked along the edge. Can one of you gunsmiths let me know if the Browning 1885 HiWall uses the same extractor and can it be repaired. I really like this weapon and would like to see it useful again.