I have good luck with the 400 (.416)and 500(.458) grain Partitions. The 120(.257)grain have been challenging in 25 Creed. I have 150(.308)grain on the shelf to try someday.
I have 3 Savages in the safe a Striker with a 25 Creed barrel , a 112 Magnum Target in 338 Lapua extremely accurate with Nosler 300gr CC or RDF and a 110 in 458 WM. That one is getting a new barrel that’s on order.
I used to use the feeler gauges but got the Wheeler years ago for Christmas.
I have a wedge set like that but I seem to mount my scopes too low to the base , they don’t fit in between.