Re: new barrel questions
My walkaround rifles wear shorter (22"-ish) sporter weight barrels and seldom weigh much more than 8lb all-up. They are configured as hunters and are not intended for sustained fire. There are three, they are all Long Actions; and two are chambered in .30-'06, and the third in .280 Rem. However, my M70 .30-'06 shoots well enough to bring home a trophy in the 1997 NJ State Sniper Championship using nothing more esoteric than FGMM 168 loads.
My match rifles are configured as range queens, wear varmint contour, typically longer (28"-ish) barrels; and will normally see 50-60 rounds going down range in two 30 minute stages during a day's outing. Generally, mine are still relatively lighter weight, around 12-13lb; and are chambered in less reactive chamberings, like .260 rem.
Currently working on load development with a box-stock MKI Varmint Ruger in .280 Rem.
I can't speak about Krieger barrels or gunsmithing. Except for the above remarks, all I've ever heard of them is good. I like the Savage rifles and my premium aftermarket barrels are made and completely finished for owner installation by Lothar-Walther. I find the arrangement to be quite effective.
Greg