Can't compare your Variant ...But on my 308 ar the soft point 180gr projos get carved up by the feed ramps. Dings and nicks in the projos also. There are NO scratches in the brass.
I did a test a couple years ago with plastic tipped bullets. The results were very good and I would requimend using those types of bullets ! JMHO used every brand except Barnes.
Red , White , Green , Yellow ,Zombie Green.