Re: COAL at the lands too long.
COAL is simply a SAMMI standardization to ensure that all rifles be at minimum length. I know that in the book it says that it is the MAX COAL, but in reality, its the max coal for a wide variety of fire arms. Not each manufacturer will use the same chamber size. On top of that, factory ammo usually won't be as exact as your hand loads, so that's where SAMMI comes in. If they make sure that the chamber is longer than the max allowable, then it will never have to worry about pressure spikes if a round is pushed into the lands.
0.070" is acceptable. It gives you something to play with via seating depth to try and improve on accuracy over factory manufacturers. Look at most SAMMI COAL's compared to actual chamber size on most Weatherby's. It will be wildly beyond max. Thast just the way it is with those rifles. If you want to keep it as a hunting sporter, and accuracy isn't measured with a micrometer, then find your max magazine length, back off it a 0.010-0.015" and use that, as long as the end results is less then 3.410" so you're not jammed into the lands.
But yes, its normal.