Originally Posted by myfriendis410
8-10 feet. I do attribute much of that simply to the geometry of the barrel and the throat. I had considerable difficulty getting this gun to shoot, but it's consistently shooting under 1/2" now. Copper fouling hasn't been bad in this rifle either for whatever reason. It usually only takes 20 minutes or so to bring it back, unlike my Browning 7mm r.m. which takes all of TWO HOURS of CR10 bore cleaner to get back to a ready condition.
If you would, next time you Chrony this load could you set the Chrony at 15 feet and report back.
My F-1 does not do well less than 12 feet