Last week I finished a rifle for a friend. 700, SS 10x,McClassic edge, .243 saami. Used a mullerworks 4 groove 1-7.75" .236" bore finished at 21.759999", the first of his I've used. Friend wanted to shoot 85tsx's, but when I started working loads found it wouldn't group for crap. Bedding and everything checked out and I started questioning my work or the barrel. Switched to moly 105hpbt's and it printed little knots. So what I figure is the tight bore, as opposed to .237 just doesn't work with monos. It also reaches pressure a couple grains early which I expected. Anybody else experience this?