Quote Originally Posted by Ted_Feasel View Post
Not sure i follow ya.. would that matter if your just getting the jump space measurement?

Sent from my SM-N975U using Tapatalk

When you measure your loaded ammo length you measure from the base of the case to the ogive...at least I did. ( I guess if you measured from the shoulder to the ogive you would be ok, I have not seen a tool for that) If the modified case is .010" shorter than you case, your jump will be .010" different. You are not using a case that is within a few thousands of your bolt face you could be using a case that is .010" off of your bolt face or longer. This is the reason I don't use this method anymore.