For everything except my big game rifles I partially size about half the neck at best and don't touch the body whatsoever.. I also don't shoot max loads so getting them in and out are no problem, I've found that this method really makes them shoot accurately... I like to set the bullet as long as it can be out and still fit in the magazine and let it function smoothly..lots of ways to skin a cat. Just to show you how long they can last.. my 6PPC chamber has a .262 neck...my loaded rounds measure .261 and some change.. I've been using the same cases for 10 years with no problem whatsoever..but factory chambers have so much neck clearance that this is not possible for the most part in them..