ihookem, I could have done the 30-40 as I also have that reamer as well. I went with the least amount of work .307 win. --- all that is required was to ream to .308win. the existing 30-30 rim is already cut in the existing bbl. to do the 30-40 I would have had to cut the rim portion and alter the extractor /ejector. no real problem just more work. .307 brass was not a problem, I scored 200cases from a friend. using .308 dies to reload with 30-30 shellholder. Now that all this is done the 30-40 reamer will not clean up a .307 chamber so I am still looking for a 30-30 bbl. for a handi, If I find a good shooting 30-30 bbl. I am going to leave it alone - that's what I wanted to start with. When I get time I will play with it again(recrown, heavy bullets, maybe heavy cast bullets, I have never sluged this bbl. either) did I mention anything about hind-sight? having fun anyway, Bill439