I have 2 handi rifles that have had surgery. One is a 45-70, 18 inch barrel. The other one is a 308 with a 16.030 in barrel. Just barely, but it is legal. I traded for it already cut down, the guy I got it from said it was professionally done. Professional what, I don't know. The end was cut off at an angle, and she was deburred with a rat tail file. I had to cut off about a half inch and recrown it. Luckily, I had access to a machine shop. Neither one cost me a dime to do. The 45-70 is very handy, I use it in the box blinds on the lease in Alabama. I wouldn't put the 4 in of barrel back on that one for anything. The 308 is a flamethrower, but faster powders and lower speed loads with cast bullets work nice in it.