I’m curious: Just how do you know that he and his sons are proficient with guns - and how would you know that the family has strong gun values (not sure what that last phrase even means)?
One might try googling it, to see at least who alleges it
I’ve done a little research. It’s pretty easy to do;
https://www.google.com/?gws_rd=ssl#tbm=vid&q=donald+trump+guns
https://www.google.com/?gws_rd=ssl#tbm=vid&q=Eric+trump+guns
https://www.google.com/?gws_rd=ssl#tbm=vid&q=Donald+JR+trump+guns