Leon: This is the accuracy I have come to expect from the STI Slugs. MY 50 yard group with 23 gr of Unique for 1250 fps is about the same size,,, shot with Iron Sights from my Hastings Rifled barrel on the A5.
I see smoothbores as 60-75 yard guns under most conditions and I see Rifled barrel guns as solid 125 yard and maybe 150 if you have the trajectory sussed out. Of course all this is contingent on your ammo actually performing like the STI slugs do. My Brass inserted STI slugs fly nice and strait too.
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A perfect example of ammo NOT performing as advertised was Federal 000 buckshot out of my M500's Vang Comped Barrel last week literally at 15" at 15 yards. This gun normally shoots 00 buck into 4" at 15 yards and 7" at 25 yards. However it sprayed the 000 all over the place. I could only conclude that three neatly stacked layers of 3 balls each launch better than Randomly Dropped 8 Ball loads which will be different every time.
Point being that ammo wasn't a good fit for that gun. Most people who've never heard of this place would not know this and just be satisfied with whatever they could get from their guns with store bought ammo and they wouldn't even try anything new,,, mostly because they'd never hear about it. Not paying attention comes to mind..
You've taken the time to figure out loads that work in your slug guns and the pictures tell the story. I mean the guts of that deer were Literally DESTROYED! A store bought Foster Slug wouldn't do that.
Randy