I have an Investarms Cabelas "Hawken" and am ok with the way it shoots at 25 yds., but at 50 my groups fall apart. I think it is for the most part I have trouble seeing the sights clearly. I want to put a Lyman 57sml on with a 17 globe front. Anyone know if this gun has the .360 dovetail or the 3/8? I do not want to drive the sight out until I get the new sight so I can still shoot it in the meantime. I know this setup is not traditional, but I can't hit what I can't see.