Originally Posted by medicscott
Hope you dont mind me throwing my question in here! New to all of this, site, LR shooting and reloading. Recently purchased my 260, the guy I bought from gave me a little load info. He said "its throated a little long" he was running 142SMKs at about 2.95" COAL using H4350. I was planning on starting with Varget, got the reloading data through Hodgdon and my manuals for starting load. Question is does that change when the COAL changes? Hope I'm not asking a Mr Obvious question but I figure when it comes to reloading the ole "only dumb question is one not asked" applies!
Thanks for any help
Are you using the same bullet he was for the load data? If so, first off - why change the load or was it not good enough? If you are using the same bullet, that length doesn't need to change unless you want to work on the seating depth for better accuracy?
If you have an OAL gauge and bullet comparator, you can measure the length from the base of the case to where the bullet ogive touches the lands.
If you haven't read The ABCs of Reloading, start there and read through your reloading manual. There are loads of people who can help you out here.