Noted the comment about 220 Swift and wanting 8 or 9 twist and so did I, but settled for a re barrel of my No.1 to 22-250 w/ 7 twist for shooting those 80-90gr. SMK's. Set it up to take my Unertl 1.5"/16x scope and it does very well way out there. Would add that it shoots the 69's all the way up to the 90's fine as well. I found that to change barrel to about any caliber you want on the No.1's is not that big of a deal and just have to install correct extractor to fit case head and they are not expensive. Have extra barrel for mine in Win. 348 to go along with my Browning Mod. 71. Watched Ruger tutorial video on disassembly of the action and a bit tricky, but after a couple times, no problem. I take it apart and visit my local 'smith and we simply unscrew one barrel, screw on the other one, change extractor and good to go. I have a No.3 which was 22 Hornet initially but is now 45/70 Gov't w/ heavier barrel than the original ones in this caliber and a bit longer and is not that unpleasant to shoot compared to original ones in this caliber. Giving serious thought to making up another barrel for the "little jewel."