The real limiting factor on small Martinis is usually cited as the small diameter of the barrel shank/threads.
Some authorities see the ".30-30 family" of ctgs. as the limit, but I would add that some, like the various .219 wildcats and the 6mm/.30-30s are very likely too much of a good thing when loaded to the pressures that were regularly loaded in High Walls and bolt guns. There have been some real hotrods based on the .30-30 case. I'd avoid the .225 Win for the same reason.
Just my opinion, but I have all my eyes, ears, and fingers after 60+ years of single shots....and never had to rebuild or junk a rifle because of an overload.
Last edited by Mike A.; 11/01/14 11:23 AM.
