I am going to pick up a A- Bolt for my son that I have had on lay-a-way for my 15 yr old son. It is .270 and my question is, is it long action or short action? I have been looking at, I think they are called Dead Nuts scope mounts. They are a one piece mount that seems to be very stable. Does anyone have any expierence with these. I would like to have the rifle set up for him for his 15th birthday. Thanks for the help!! P.S., I don't even have a Browning myself.