I have a full sized #1 Rolling Block I bought relined and chambered in .38 Special. An old Sporting Rifle that started life as a .38 Long RF, and got converted to CF also when relined.
I honestly never considered a Rolling Block in this cartridge ever. But it was very reasonably priced, and I'm a sucker for them. Once I put good sights on it, I was pleasantly surprised how accurate it is, and how much fun it is to shoot! I've been able to get pretty decent accuracy out to 500 yds., and even less consistent hits on the 650 yd. plates too.