big bulls the hornet was designed for 45 gr bullets and a 1-16 was not fast enough.

from wikipedia:


"Older guns generally have a slower twist rate of 1-16" (or one turn in every 16 inches (410 mm) of barrel length) for lighter bullets with a .223 caliber dimension. Newer guns feature a faster 1-14" twist for 40 to 45-grain (2.9 g) bullets in the more standard .224 caliber."

the hornet was never known for accuracy in the early days, the 1-16 was the problem
some guns shot the 45gr ok and some didnt

why do manufacturers still build this gun in a 1-16 ? its not 1930 anymore.


go to this link and punch in the numbers.
http://www.realguns.com/calculators/riflingtwist.html
40gr vmax is .676 long at 2980 = a 1-13.4 twist