gambleone
Silver $$ Contributor
This. Couple variables are determining whether you need to bump shoulder. Type of brass, powder charge and caliber are some. Seen rifles that have to be bumped after 1st firing and some will be ok till 3-5 firings. Think Richard Coody is on the money here with his suggestions.Is it hornady brass? It is soft. Sounds like 1 firing fully fireformed the brass. You can use a marker or Prussian blue on your case to see what is contacting but my bet is the shoulder.
Last edited: