A few years ago I was looking into optimizing a .410 of mine. Aside from extending the forcing cones and enlarging the barrel bore diameters (I forget how much). The final treatment was to put a high polish on the newly extended forcing cones and enlarged barrel bores.
I never had the work done on my gun so I can't say how much it helped, though it did make sense. BTW, the gun was a Rossi Squire (a Walmart special) I'd cosmetically worked over. I called it my Sow's Ear Project. Unfortunately, it just wasn't worth it to invest that much money in the gun.
Steve
Last edited by Rockdoc; 10/02/19 10:09 AM.
