I have a savage in 300 wsm that I rebarrelled with a Douglas SS from sharpshooter supply, and with r-17 it was not great by any means but with R-19 and the 190 bergers it is a sub moa shooter. If I remember correctly 63.0 of r-19 with a col of 2.890. My gun likes a bit of jump to the lands. FYI ,,I get very little case stretch. Also ,you can e-mail Berger and they will send you reloading data for any of the bullets they make..