Primary reason for doing the 1/7 twist is to shoot at matches(NRA Long Range) ranging from 600yds. to 1000yds. and w/ the 80-90gr SMK's I find it to be very similar to the 308 w/ Sierra Palma 155's, but with a heck of a lot less recoil. Can get over 3200fps with either of these bullets, but accuracy seems to suffer some and back it off to just slightly over 3000fps and accuracy is dead spot on and wind deflection/adjustments very similar to the 308 w/ the 155's. Have never "cleaned" the 1000yd target, but have shot in the high 190's(196 w/ 12X's) and if memory serves right, came in 2nd behind military shooters using the 300WinMag. The 22-250 w/right twist(7-8) barrel/load is a high performance combo and with shooting jacket, sling, prone style shooting, there were times I could not tell if the round fired or not, no recoil and w/ ear muffs on, could not hear the muzzle blast. These days with quality components the 308 will run you about $0.75/round(reloads) and the 22-250 will be about 25% less with equal performance. What's not to like about that??
Years ago I dismissed the No. 1 for long range prone/sling shooting for I thought the forward sling would put stress on the barrel until I figured out the hanger(which is welded to the main action body)does not exert pressure on the barrel w/sling. There are better triggers out there compared to factory, but I find the issue trigger works fine for me. Used old standby of Rem. 700's for long range match shooting for years, but the Ruger No. 1 is strong as a bank vault and for slow fire match shooting it is a very fine rifle if equipped with quality barrel and right twist.