I've only been using HBN plated bullets for about 6 months or so. My past cleaning regiment was clean every 50 to 60 rounds and a 10 rounds fouled fouled barrel before hunting season. My 300wm barrel has 125 rounds shot and still shoots excellent. However, I'm going to hate the thought of going into hunting season with that many rounds fouled. Does anyone with more HBN experience than me have a problem with this? This site will not let me post pics right now for some reason!!!!!! But 3 groups at 200 yards , .253 moa, .188 moa, .258 moa. Each shot was from a DEAD cold bore. Would anyone have problem with this??