What did I do? Case body bulge

[ko1featherweigh]

Reloaded some 3006 and when shooting a handful wouldn’t feed. Upon inspection those that failed to feed all had some degree of bulge in the side of the case. Reloaded some different headstamps during this session but only the barns brass had the issue. All brass was once fired through the same rifle.

 

[A382DWDZQ]

Were the Barnes stiffer to seat or longer cases?

 

[ko1featherweigh]

Were the Barnes stiffer to seat or longer cases?

All brass was trimmed to the same length. I don’t recall bullet seating being any stiffer than others.

I haven’t pulled the bullets yet but I’ll measure case length just incase

 

[pbroski]

Are your loads compressed? Too much powder compression will cause bulges like that.

 

[ItsPaste]

Are you running a full length resizing die, or are these fire formed?

 

[A382DWDZQ]

Check the thickness of the neck wall also. Could be that it’s thicker than the others and so neck tension is a bit stiffer. Seating might be putting too much pressure.t