Re: COAL from lands ? for a 300wm berger 210's
Try spliting a case neck. Dremal tool, even a hack saw would work. You want just enough tension to hold the bullet from falling in or out, but working semi freely. Extend the bullet out and chamber it. With your cleaning rod entering the muzzle end, lightly push the cartridge back out. Do this 3 or 4 times to make sure your numbers are close. Once your satisfied you can start tweeking your bullet seating depth by marking the bullet with a marker or smoking it with a candle until you don't see any marks from the lands. Reassure yourself a few times, that you are up to, but not touching the lands. That's the number I want to work with. This is a measurement to the o-give only for that particular bullet. You will have to do this again if you switch bullet's.