Might not be of any use because mine has the ballard rifling, but 21 gr H110 and Speer 270 gr will hold minute of Copenhagen can at 100 with XS open sights. I've been tempted to throw a scope on just for giggles and test different loads, but would be pointless as it doesn't wear one anyway. The Lazercast 240s lead mine like a mofo, and don't feed flawlessly, but shoot pretty decent until the lead builds up. I've some Beartooth 250s that shoot really well, and feed with nary a hiccup.
