Pashooter: I have been a long time fan of the 220 Swift.
I have owned many of them in the past.
Next Tuesday i will be picking up my eighth Varminter in 220 Swift that I currently own and shoot.
It has a 26" barrel.
I prefer longer barrels in the 220 Swift for efficiency and stability of aiming in the field.
My longest heavy barreled Swift has a stainless 27 1/4" barrel.
I love that Rifle and baby it to the extreme as it is superbly accurate!
All my Swifts use either 55 grain bullets or 52 grain bullets.
I have yet to find something I want done with my Swifts that can't be done with these bullets.
Go long!
Best of luck with your 220 Swift project.
Hold into the wind
VarmintGuy