There seems a HUGE disconnect or complete refusal to accept what is being said here. I'm sure it's my fault, as I'm probably not able to find a way to adequately explain it. Are you understanding the difference between linear measurements and angular measurements?
Let me say that I agree, that a group measured in linear inches will never result in a group at longer distance that would measure smaller in linear inches. I'm not sure how much more clearly I can explain that.
However, groups measured in ANGULAR units, NOT linear, can and do measure smaller at distance than up close. I don't believe Bryan Litz has much experience with 375CT... but I'm confident that he would find a suitable scientific explanation for what happens if he did. I'm not sure of another way to put it gentlemen, other than to say that with a 375CT using 352gr Cutting Edge solids, this happens every single time I go out shooting that rifle. 1-3MOA at 100yds, and .5 MOA or better at extended ranges.
I find it very difficult to believe that none of you have ever had groups that measured smaller moa at distance than up close. A .4 moa group at 100yds, then shot a .3 moa group at 300yds? That group didn't shrink in linear inches... but it is smaller in MOA. That's not all that hard to have happen.
I can't stop you from discounting everything I'm saying, or to dismiss it as shooter ability, parallax, or some other variable. I also recognize that I'm new here. If post count is the measure of my skill, then I am still wearing diapers. Though I have won my share of matches, we do have a list of happy customers that I've instructed on shooting long range in various classes that we hold here, I have had articles published in certain a few publications over the years. Have a quick glance at www.primalrights.com for more on all that, but suffice it to say that this isn't my first rodeo. I have no motivation to mislead anyone, and take great care to not accidentally do so... as my profession and livelihood would be in jeopardy otherwise. I can always improve, but on my worst day I'm a 3/4 MOA shooter at 100yds. There is almost no possible way that I could foul up to the extent of producing 2" groups at 100yds, and then carry on to produce .5 MOA at several hundred yards in the same session with the same ammo if there wasn't something more going on. I have told you that no other rifle/cartridge in my possession has blatantly exhibited this behavior. So I would expect that you would seek out experience with those same cartridge/bullet before completely dismissing the possibility. I know this conversation would be going differently if it were in person. I could just lay down behind the rifle in question and show you... and then let you do the same. Then we could dispense with the "no, you're wrong, its shooter error, that's impossible" stuff being thrown my way right now. Just once, it would be nice if a conversation on an internet forum could extend beyond the sarcasm, belittling, and bickering that serves only to stifle discovery. I very much would like a credible and probable scientific explanation for what is going on, yet that has been impossible due to the predictable closed-minded backlash in nearly every instance it is brought up, from people that have no experience with the cartridge/bullet in question. Based on some of the responses, you'd think I was suggesting I'd seen a UFO. In actuality, this is happening, and it's happening every single time I get behind my 375CT. It's a simple and hardened fact. If any of you are near South Dakota, I'll happily come show you. As this effect does not present itself with anything else I shoot, or at least not to the degree that it is easily identifiable, I know that the vast majority of you will not see it in your shooting either. Since it doesn't affect you, I understand that you might not have a motivation to explain it. I'm OK with that. I guess I'm not OK with the "you simply don't know what you're doing" explanation, as the facts would suggest otherwise.
What do you have to risk by having an open mind and accepting the possibility that what I'm saying is truly happening, and attempting to help me find an explanation for it?