With today's bullets, most rifles with descent bores and bedding, even those made around the turn of the 20th century, will group in 1 1/2" or less with monotonous regularity.

My old 9.3's are case in point - both 1920's era, the little 57mm case with a great bore, the 62mm with some pits, yet both shoot into an inch or better, depending on the bullets used, even .375's sized down to .367".