I finally had some time yesterday to get to the range with my scoped barrel/shroud Dan Wesson. I set up the target at 15 metres and shot off-hand as always. I once again lost elevation to lower the scope for this close, the scope seems slightly tilted when I hold as opposed to level in the gun vise, and I find the scope heavy - but that was expected.
Here are the first shots sighting it in
After that, I tried a new target and got yet another squib with my .38 SPL loads using Titegroup on a Lee Auto Disk set-up. I've since stopped loading light loads with the Auto Disk and only shoot .357 cases with medium to hot loads. Grouping is acceptable, but after the squib I swapped out to the 4.2" barrel.