Buffalo Bore .38 +P 158gr
Yes, I fired a box of them through my SP 101 (3" bbl) and I can attest this is a STOUT round! I can easily believe they get 1000+ fps out of it as it really felt very little different than a medium .357 rd fired from same gun (like the Golden Sabre).
The difference between the Buffalo Bore round and the more traditional FBI load was VERY noticeable. I'm sure it would be a good round, but at the price they retail at, plus shipping and handling, they get pretty pricey to practice with to a reasonable level of proficiency.
Which is why I decided to stay witheither the traditional 158+p round or go with the Golden Sabre in .357. I can pick up the G/S in my area for 12-13$ a box of 25, allowing me reasonable economics with respect to practice with a carry round.
As well, I thought, if you have a .38 spl round that kicks just marginally less than a medium .357, why not simply go with the .357 round? Especially if a name brand SD round like the Golden Sabre is available.