I will throw this out: Pre-64 Winchester(model 70) Varmint with bull barrel (904 manufactured) and 12X Lyman Targetspot. A solid 98% and likely unfired. Therefore, I cannot attest to its accuracy.
PM replied. Still looking folks. I just do not see a whole lot of 220 swift rifles for sale. Just bought 300 brass cases real cheap, guess I need to now buy a rifle. Thanks to all for the responses.