As usual I'm a little late getting to a thread but I'll have to echo everyone's sentiments towards Jes's work. I've had two rifles done by him and the first was a great shooter. It was a Marlin 336 30/30 rebored to 38/55. It shot great with Barnes Originals and cast as well. The second rifle is a Glenfield model 30 with the half mag that also started life as a 30/30 but is now a 356 Winchester. Regrettably I've never got around to shooting it yet. I have some test loads made up just have yet to get it to the range. I went with the 3 groove rifling on both.
Goat