Regarding fouling shots I have long held onto that practice for my rifles, but my experience at last month’s silhouette fun match has me scratching my head a bit. I had a rifle problem on my first string that I couldn’t quickly fix so the shooter i was squaded with graciously offered to share his custom 10/22. I asked if he had enough ammo and he said just use mine. So we spent the match with me shooting ten rounds of Aquila SE SV and then he would shoot ten rounds CCI SV. At no point did going from CCI to greasy Aguila seem to affect POI. It was like his gun was set up for me and my ammo. It was my first time with a 10/22 as well. Lots of fun but i never would have believed the ammo performance, especially using “waxy” CCI & greasy Aguila.