Hi guys, my wife is currently shooting a remington 770 in 270. She can get through about 15 rounds before her shoulder starts to hurt. I was considering buying her a new rifle in 223 but after crunching some numbers it appears I might be money ahead if I just have a barrel swap done. I was curious what the easiest kicking long action cartridge may be in you guys' opinions. Or, can you chamber a short action round using a long action gun? I'd love to make her a 22-250 out of her current rifle. Thanks all!