Ah, Blind Horse......now I remember going to their site; nice stuff.
I had a S&W 3", think it was a Lew Horton special 629 (44M) followed by a 4" 624 (44Spl.) for some years after having had the Maggies (probably should have kept those too!), both them and me liked the 6.5 up to the 7.5 gr of Unique (taking the suggestion of Skeeter) under the Lyman 429421 cast of mostly WWts. in the appropriate cases. The 6.5 was nice out to about 50yd, then fell off rapidly and the 7.5 fair snotty on out after that so I split the diff and mostly loaded 7.0gr. A lot of guys like hotter loads but those kicked everything I needed a big bore to kick.