I believe it would be helpful to post a list of pro gun candidates and the phone/email/physical address of their campaign headquarters so all the people reading here could contact the campaign staff and volunteer to help. Helping someone to get elected goes farther than just letters asking someone to vote for or against something. It certainly goes farther than just sounding off on this and other forums.
Some may be able to write checks to the campaign or talk others into writing checks. Others are not in that position but volunteering to walk precincts, or make phone calls, or just sort stuff will be remembered. You might even help someone you like win instead of lose their race.
I'm sure Illinois Carry can supply those lists and make them a sticky here.