Every .375 I've had, no matter whether it was a H&H, .375/350 or .375/06IMP (2), all bullet weights from 235 to 30gr. shoot into a 2 1/2" circle at 100 yards. Every one of them has shot individual groups of under 1", inside that 2 1/2" circle.
: Disregarding the 235gr. Speers, the remaining 250, 260, 270, 285 and 30gr. all shot into 1 1/2", so, you could have several different bullet weights for different game aplications, with never having to change the sight setings. Shooting iron sights from game positions, all have exactly the same point of impact.
: BRNO/CZ barrels have always displayed exceptional accuracy for factory barrels. The only time one would have to consider replacing one with a custom barrel, is after wearing one out which is highly unlikely except in varmint calibres.
: My BRNO's always were and now includes my CZ are the most accurate 'factory' rifles I have or have fired.