For certain guns, I like to start the bend right behind the parting line between barrel and plug. It's hard to do because the metal is thick and resists bending. There is also a fillet between tang and upright plug flats.
So I had an idea today that helped me get the bend closer. I filed away the fillet between tang and plug, which made the tang even thickness all the way up to the standing plug. Then heated it orange hot, and tapped it with a heavy hammer to start the bend, maybe 1/4" away from the seam.