I just had a conversation this weekend with my Bro. When a teen in 60s me and a buddy were trying to find a 45/8” BH 357 that had enough adjustment to sight in at 50yds. I wish I had record of how many we bought. We finally gave up and got 6” guns and sighted with no problem. We bought 41mgs and had no sight in problems with them. We did have this problem with SBH. Both of us still have our original 3screw SBH and they won’t sight in because back runs out against frame and front blade isn’t high enough. At one time in 60s I had one of each Ruger, each barrel length. Today with all they’re models you couldn’t haul them all in a pickup.