Then on what are you basing your disagreement? I've proven my statements with dozens (many dozens) of other rifles, using same lot numbers of ammo. This is including several rifles I've cut down to 16" which started out with 28" barrels. Long barrels tend to have reduced ES. It's a fact, and one that's been confirmed for me over 20+ years of pursuing precision rimfire.
I'd need to put some work into cataloging rifles comparatively in order to produce that data. I've only ever been really concerned with each rifle on its own, which is why I don't have a big chart showing the dozens of rifles I've tested and their respective velocity data. On rifles I've cut from 28" to 16" (only about 3-4) I've seen between 8% and nearly 40% increase in ES with the respective lot number I was shooting in those rifles at the time. A lot of this was early on, and I hadn't drawn the correlation between barrel length and ES yet. It was during work with those rifles that I began to notice it. I just kind of arbitrarily assigned a "25% worse" ES at 16" than 28" value in my head to simplify things for me.
Another point of note, is in those rifles I cut down to 16"... they shot worse at 16" than they did at full length. All of them. Some to a much higher degree than others.
Fellas, I didn't intend to conquer the argument with a couple of sub-10min videos. However, this concept is all settled for me. I understand some of you want more "proof," and my suggestion is to get to work. Bust out those chronographs and chop saws if you want. I have a lot of other things that I'm testing which I don't already know the answer to which are more important for me to work on right now. That may seem harsh, but I have limited time and I can't spent it going over things I already know in order to "prove" something to the internet. Even if I did, many will want to just argue about it anyway... since unreasonable people and trolls are basically the majority now. I never know who is genuine and who is a waste of time. So that's why I've shifted to simply providing short videos that mildly demonstrate the concept, rather than trying to go all-in on convincing people of the truth. No one seems to care, and point in fact... the more resolute my position and persuasive my arguments, the more people resist the truth. So frankly, I've stopped trying to convince people, and instead have taken the approach of "here it is, be ignorant if you want."
It's about time first hand experience makes a come-back. So don't listen to me either. I'd prefer people to do the work themselves so they can actually KNOW something instead of just regurgitate what they see/hear and pass it off as their own.
