i think they r great, i dont think im being sucked n2 anything resembling "marketing" i read the same ballistic tables everyone else does and c no reason 2 beleive one cartriges ballistics and not another simply because its new. obviously these cartriges should not compare to the "ultra mags" and weatherbys, but they come surprisingly close. they should be compared to their parent cases and other short action calibers, short action being the key word. i fired a friends brand new .300WSM sighting his scope in. easily 5 pounds lighter than mine, and shot a couple of groups of 3 that would fit in my thumbnail at 100 yds from a factory rifle! understandibly most ballistics wont b duplicated n the field because most hunters dont carry 28"-26" barrels hunting, i havent seen the tables for the .270WSM or 7mmWSM yet, but trusting the ballistic tables for the 300WSM, it comes close enough for the girls i go with. even after calming down...its still my opinion. we all got one.