A gent from TX tried it on a shoot we did together many years ago. We were shooting long range off off my portable bench, at very small diggers. Didn't work perfect on his frame, but worked just fine on the one I had along. Probably because of multiple factors. All of my frames had tight hinge pins, tuned actions, super light tuned triggers, and the barrel bolts were all tuned for lock up. With his there was a little slop so wobble at the hinge pin without the support of a forend, and only a fairly light but untuned trigger and no tuned action or barrel. My technique is much different than his as well. With so many years using it, the factors on his gear mattered not at all to me. One or more of the differences were assumed to be the main reason why when there was an uncalled miss.
Not a huge problem even on his frame for him though as he was a very talented marksman who had quite a few years experience shooting TC's. Not as good with them as I am, but I had decades more experience with them. He was very close though, seldom missed with any firearm, including with this set up on his frame. So I wouldn't assume it was him in anyway, nor the loads that were tuned to the barrel. Was the last time I shot with him before he died.
Minute of head even on the very small diggers here on the desert is not the same as shooting paper though, and we didn't do that.
