I looked through this article, where Mr. Venturino discusses expander plug size, and his experiences with it. What I got out of the article is that different sizes can work. I have both Redding and Lyman expanders. The Lyman checks .4555" dia, and the Redding is about .457. So far I have only tried loads with the Redding.
I took the Shiloh .45-90 to the range today, to check a hunting load. This is the rifle ET dubbed "a Friday night go to the whorehouse rifle"
Load is 450gr Powder Inc flat points sized .459, over 80gr KIK. The result was about 2.5-3MOA, which should be okay for hunting at short ranges. I expect a 450gr bullet should be plenty for Texas deer
Longer term I'll keep experimenting with different loads and techniques, but I am curious to what approach others have tried. In the smokeless world I normally go for fairly tight bullet fit, but I know using black with soft bullets most folks prefer a more loose bullet fit in the case.
