This is what you need
https://dawsonprecision.com/reverse-plugs-1911-2011-by-dawson-precision/
You have a bushing, you need a reverse plug to run that combo
I just started using N310, as recommended by Brandon at SVI, through my svi sight tracker, very clean, accurate,excellent results .... Don't know how it fairs in 9mm..
I Just loaded my first batch of N310, as recommended by Brandon at SVI, all I can say is WOW!!!! incredibly accurate and flat shooting out of my SVI 5.4 sight tracker