I tried to fix a dinged crown on a 300 Win Mag with a rented 45 degree crown cutter from 4D and while the ding is gone I have some chatter marks. Should I just shoot it and leave it alone if its good or is there a way to clean it up as an amateur without machine tools like myself?
Posts: 1557 | Location: NC | Registered: 10 June 2002
I have not shot it yet but will try it first before anything else. Somewhat lucky that it is a 300 WM with a removable brake, so it won't generally be visible and it's on a well worn synthetic stocked hunting gun. I will however give it a shot with the brass ball lapping. What grit is suggested?
Posts: 1557 | Location: NC | Registered: 10 June 2002
Depends on how bad the chatter is. Me, I'd have it cut properly on a lathe and call it a lesson learned,,, hand powered tools like were tried don't work well, ,,,,,especially rented ones.
Posts: 725 | Location: fly over America, also known as Oklahoma | Registered: 02 June 2013
This question makes me think about an article that I read in G&A 20-30 years ago. The author, who I believe was Ross Seyfried, chucked a Sierra bullet into a drill and coated the ogive with lapping compound. He used it to clean up a damaged crown. I hadn’t thought about it in years (I’ve got two lathes and no need to try it) but I’d love to go back and re-read it.
Posts: 991 | Location: AL | Registered: 13 January 2003
I think I remember that article. It was a 300 Weatherby with damaged crown he used a 416 or 458 solid with valve grinding compound. A little different than a jacketed soft point.
Last 5 rounds I had loaded from my aoudad trip looked promising today. 1st shot was spot on and my 100 yard group was decent but with some vertical stringing. Will need to load and shoot some more.
Posts: 1557 | Location: NC | Registered: 10 June 2002
