I have an old H&R Topper single shot in 30-30. As a kid we played with boatails in handloads and the rifle gained some accuracy over distance.
I have looked off and on over the years for an after market barrel in another chambering like 308 or 7mm-08. Turns out the gun might be too old (it was "old" when we bought it in 1973) and would require factory hand fitting of the extra barrel and extractor. Turns out NEF won't touch it either. Hmmm.....what to do....
After a short internet search I found a lot of info on AI chamberings. It looks like cartridges with tapered walls like the 30-30, 30-40 etc showed the most improvement by going AI.
Of course I could go the totally crazy route and send it to Gary Reeder and have it turned into a 30GNR...darned sexy looking and their pricing is not too bad.
There is a huge internet fan base for the NEF Handi rifles (offspring of my Topper) going AI, especially the 30-30 since they are a common pawn shop gun in some parts of the country. This appears to be a very popular piece of work to get done where ever .30 caliber lever guns are king.
Do any of you local Anchorage gunsmiths have a 30-30 AI chamber reamer? Or does anyone know of a gunsmith up here that has one?