big whoop I have had short action Roberts where bullets needed to be seated deeply. If everything else was done right, they shot fine.
Afterthought: I have noticed that when you push a cartridge to higher velocity,and it shoots worse,it's a sure sign that there's a mechanical problem; bad bedding or assembly. Seen this play out too many times.
This is a reason that guys load juggle,and say rifles shoot better below max. A well built rifle with a good barrel will not flinch at being run at max for the cartridge IME. This rifle is showing just that; the 117 load is stuffed with some dense, slow powder and advertised at 150 fps faster than the 120 NPT load.
No doubt in my mind this is a bedding or assembly problem,although you can't rule out the barrel either.
