My apologies. I dug through most of my crap today, port sizing was bugging me. I found some notes that I scribbled down.
My Colt 11.5 bbl measured 0.080", the HRT 11.5" at 0.069" (loose, but seemed too tight using 0.070", IIRC). Port size was advertised at 0.070" .
Again, I am no machinist and borrowed a set of pin gauges awhile back. My use may/may not be accurate. I just sized the pins until they passed freely and did not bind.
Hope this helps.