OP, your original question is what I've been working with for several years now, and that is based on Chris Long's work of optimal barrel time. His study boils down to this, that in general, accuracy (node, if you will) is primarily based upon barrel length and MV. A 20" barrel will have a...
Greetings all, new member from northern VA.
Conservative, born-again (SSBG!) Navy vet, nuclear field retired, active reloader. Not new to shooting but definitely willing to learn and apply.
Grayfox72.