Daryl thank you once again for your response. BTW you were correct in using the term "groove" in your original post, I was the one that used the term bore incorrectly. I am starting to feel better about the model 146 as a nice medium bore cast bullet shooter.

Matt, I was wondering if you could updated me on the cast bullets you have been trying out in your model 46 ? Have you had to play with the sizing to get acceptable accuracy ? Have any loads regulated to the open sights ? Thanks in advance.

Wyatt