My B14 Hunter 7-08 doesn't like 140 grain Partitions. I tried them with Big Game and my usual reloading process. Now they were a bulk of "over-runs" from Midway with the looks like a cut cannelure. But still.
I recommend you try the Redding Body Die to bump .003 and a Lee Collet die to follow. It works for me. And drop short and trickle.
Edit: And Lapua brass
I have been running Lapua Brass, BR2's, 162 ELD-X, 39.0 grains IMR 8208 XBR, for 2653fps with a 4.7SD. Bergara B-14 that I skim bedded. I bump .003 with a Redding Body Die and follow with a Lee Collet Die. Works great on S. Indiana whitetails.
I have a 7-08 that runs ELD-X 162’s @ 2653 out of a 22”. Last year I removed the scope from the rail and the barreled action from the stock to have the barrel threaded. Eventually I put it all back together and went out to shoot this fall to see if it was close. I shot one at 50 to check...
I don't even reload shot shells for trap and skeet anymore... Once the last of my 1k reloads are gone I will suck it up for a case of gun clubs when needed.