O.K. The scope arrived today (looks perfectly proportioned to the Youth Rifle). Spent about 40 minutes at the range with rather mediocre results. Remington economy 50 gr. hollow points printed 1 and 11/16 (3 shots @ only 50 yards). I shot two, three shot groups with Black Hills 60 gr. Nosler Partitions (same distance): first group, 1 and 1/2"...second group, 2 and 5/16". Shots for the first two groups were probably spaced about 4 minutes apart. The last group was probably only 1 minute apart.
This evening I lightly lapped the bore and then thoroughly cleaned it to a clean, dry finish.
As I was sitting in 30ish weather tonight watching my son's JV football game, I got to thinking about the throat on this rifle. After I got home, I tried loading some Nosler 60 gr. bullets behind 25 gr. H4895. I've seated the bullets only about a caliber deep (just to the bottom of the neck). OAL measures 2.340"-way longer than normal specs. I "magic markered" the first bullet ogive, carefully chambered a round, and was not able to see any graving marks on the bullet.
Am I proceeding in a rational manner? Insights from the wise ones would be appreciated.