You'd probably get 800 if its a BDL, maybe a bit less because of the muzzle break. If its the '98 classic model maybe another 100, the KS north of 1k and the Safari grades 1250 and up.
I would keep it though, they don't make them anymore. What's with your sig line - did ya work up a max load in 30shots and put it away? Or you have 2