I have a couple rifles with the banded drive on front sights. One is a Lyman and the second is a Redfield. I removed the sight blade on the lyman along with the set screw. Short of heating it with a propane tourch it won't budge. Same for the redfield neither will move.
The Lyman I want to save as well as the Redfield. Want to put a Lyman 17XNB which is a globe type target sight for my sportered 1943A3.Still has the issue barrel and was not cut down. Hate to say this but I think the propane tourch is the only way to go. I have a smaller than normal tourch tip and seems heating it up slowley would be the safest approach. So if anyone has done this I'd greatly appreciate hearing about your secuess.Frank