Well, that's annoying. 257 Roberts and Barnes TSX.

[35WhelenAI]

VLD chamfer tool is what I use, but a standard chamfer tool has been fine as well when I used it. Main thing is the angle of the VLD tool is more shallow so it's as easy of a transition as possible for the bullet to ease into the case. Personally, I wouldn't lube anything with respect make seating easier.

From experience, I haven't seen any difference in field accuracy (or on paper with a hunting gun) when there was a "shaving" from seating the Barnes bullets early on (mid -late 1990's) before I started paying more attention to it. The bullet is engraved by the rifling and that causes far more change in the bullet than the small shavings that become (IMO) immaterial as the bullet is under tremendous pressure and smoothes any of those imperfections out by the time it leaves the bbl.

 

[SDHNTR]

Ive loaded tons of ammo with the case mouth over a cannelure ring. No crimp. No big deal, no ill effect. I seriously don’t even give it a second thought. Again, you have a neck tension issue, nothing more.

 

[A382DWDZQ]

Was also going to say that it might not be a bad idea to back the charge off a few grains once the neck tension is fixed.