My MAXI also shoots 357/38spls very well. The 38's are a hoot and quite quiet to boot. Great for tin can shooting off the porch at deer camp!!!
I don't remember targets shot with the 38's but like I said it hits tin cans at 10-40 yards easy enough. The MAG, has shot just about as good as the MAXI, but I never worked on any loads for it. i just shoot what ever I had on hand or had loaded/bought that day. My MAXI now that's a diff story, my hand loads with 1680 powder & Hornady SSP's or SPEER GD's shoot as good as almost any caliber I ever owned. 1 - 1.25" touching hole groups are easy!!
Your gonna LOVE the MAXI!!!
CW