New 10" barrel, bullet stability problems

[TCCrewchief76]

With the problems you are having with both Subs and Supers, I'd say it's time to slug the barrel. I honestly cannot think of anything else besides an oversized barrel at this point. An oversized barrel will cause tumbling with both Subs and Supers. Slugging will also let you feel the consistency of the rifling as the slug is pushed down the bore.

Kevin