I cannot get my 7mm rem mag Browning Bar to group at all, It was my uncles and used very lightly, I acquired it and have struggled to sight it in.
I have been extremely careful not to overheat the barrel and wait 10-15 minutes between shots while trying to sight it in.
I am getting like an 9 inch group at 100yds.
I have used a foam cleaner on the barrel, for copper, but no luck. any ideas.
I am using 175 remington corelokts