Exactly correct Lemoyne. Too many hunters blame inside the bore when accuracy suddenly starts dropping. Many times it's that hole causing it, whether it be a nipple or breechplug.
I am so upset with myself right now. I let Knight Rifles snooker me into getting the Knight Vision with those red thing-a-ma-jigs. Guy told me over the phone that it waterproofs the breech area and reduces blowback. Now I'm reading everywhere that there's less blowback with it's naked breechplug, more-so than wearing that red ML condom.
Thank goodness I'm shooting real black and not needing hot primers. My cooler Goex powder and cooler primer combo should help my cause.