I like this guy & some of his theories about self defense & alertness, but starting to think that his 22 LR comparisons, for both accuracy & velocity variations are a waste of time.
This vid? Several fliers were clearly his fault & he did admit to a couple. It would take a washed out barrel &/or terrible ammo to shoot that bad at 25 yds. He simply wasn't set up well for such a test & rushed it to sloppiness.
His velocity test per length of barrel that was shown sometime back was performed with 3 or 4 different guns, that didn't divulge a thing. The same barrel must be tested to form a baseline & then shortened an inch or so at a time & retested. Not only that, but all done the same day. The only way for a conclusive test. I was going to say something when that vid was shown but decided not to. Then the so called accuracy comparison test shows up with equally poor procedures & that's when I decided to speak up.