You are correct it’s a .655! That wouldn’t be a good combination there!
Only one way to know for sure and that’s to pattern it, but I’d imagine it’s going to be pretty dang tight. I’ve personally never seen Longbeards open up at ranges less than 25yds with any choke. They seem to be a shell designed for 30 and out. I ran into some problems with them and don’t shoot them anymore, but they’re undoubtedly a devastating round at 40 and ranges not to be discussed on this forum. Up close, though, they shoot ragged-hole tight. I’d definitely give it a try and see what it does. Might even suggest trying some different loads through that choke and just see what the patterns look like before you get into the bigger money of buying and trying new chokes.
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