Excellent post, Miller. In answer to your question .....
I will thus ask one question of you. Do you have enough evidence to be statistically significant that a 28 gauge bore is less sensitive to these changes than any other size? If so I would certainly be interested in seeing it.
.....no, I have no evidence that a 28 bore is less sensitive the these changes. Actually, I don't believe it is. What I
think is that a 3/4 oz. 28 bore load seems to kill and crush targets more efficiently than it should, given it's payload. I cannot explain that. Neil Oldridge couldn't, and he had the ballistics labs of Remington at his disposal to do so. But, he believed it, too, in spite of not being able to explain it.
I certainly don't think the patterns are superior to those of a same quality 3/4 oz. load from a 12. Maybe I am fooled by the fact that I don't, and probably never will, shoot enough 3/4 oz. loads in 12 or 16 gauge to really have something solid to compare the 28 to.
So, we're at a bit of an impasse. I believe something I cannot prove, and it hasn't been disproven, either. But, I have enjoyed the exchange. And, as always, you challenge me to get my "stuff" together before I make a statement. I appreciate that. Thank you, as always, for what you contribute to my knowledge base.
All my best, SRH