There are a lot of different break in methods/ beliefs. Speedy built many rifles for me personally all the way back when he built them out of his garage in Arlington TX until he sold his business to Stick and moved to Trinidad CO to teach his trade. If you have ever gone through a "clean and shoot, repeat" 1-20 round process. You can actually see that the barrel and fouling level goes through changes if you pay attention. There will be changes and eventually, typically in the 10-15 round count, the cooper fouling will completely disappear or "shoot out". It is hard to dispute once you have witnessed it happen, especially after many multiple times of witnessing it happen, that breaking in a barrel is actually doing something. That said for those here that know Speedy on a personal level, he was pretty non-challant about barrel break in later on. Yes he wrote that article but his opinion changed later in his BR career and he didn't go through a specific process. I still do it religiously and he gave me a hard time about it every time I mentioned it. So even people with ideas about things change their minds. My self I do it, I see a difference, I don't have the experience Speedy did and apparently he decided it disn't make a difference......so take from that what you want .