Rifle purpose ? I shoot 20's..........W A Y overbore........
20-250.........? 38+ grs down a 20 cal tube.......? Dies ?
I had a 9T 20BR a few years ago.....that is more than enough overbore.......
it is now a 20-222.....luv it......23/H322 & 40 V max....but....I'm a high volume p/dog shooter........
my other 20's.....20 Fireball (Vartarg)..........20-223 (Practical)
The 20BR may suit your needs well........
http://www.accurateshooter.com/cartridge-guides/20caliber/
