I just bought the weatherby vanguard 7mm mag for myself love the rifle the trigger wasnt to sporty tho eplaced it witha timney trigger that was my on prefernce tho.The moa are the results of they take the best barrels from the vanguard see the moa will group them 1 inch or less my vanguard will do it in a 1 and half inch.Dont know about the Tc but the weatherby is simply a fine production rifle and probaly always will be i love mine. I use the federal power shok 150 gr in mine and it groups them in 1 and a quarter inch at a 100 yrds. hope this was helpful,,,,,,,,,,,,,,,,Joe