"...and the 110's which started the K Frame problem/debate(such as it is)back in the '60's..."

A manufacturer of high velocity ammunition claimed that S&W had pulled some known defective 2.5" K barrels out of storage and used them. He said that this was the reason forcing cones were cracking with his loads. He then said that S&W told him that if he persisted in saying that, they would go public and blaim his loads. In years past, some smiths and the old stainless ruger security six showed up with cracked forcing cones and the old 40+ thousand cup/psi loads tended to wear, streatch and loosen the entire platform quickly. Probably isnt an issue with any current SAAMI load as they are down in the 35,000 range now.
A few years ago, I clocked some Corbon 110 jhp loads at 1460s out of my 2.25" sp101. Neither those nor any other CB load has caused problems with my rugers even though they seem to be loading them to traditional pressure levels.