Originally Posted by rocknwell
Hello, can i get some help on understanding how different ratios of barrel twists affect the flight of bullets? does a smaller ratio (faster spinning bullet) go straiter than a larger ratio (slower spinning bullet)? what effect do these have on BCs? I'm looking to get a rifle in either 7mm rem mag or .308 and i'd like to know what type of barrel twists i should be looking for/what not to get. Thank you!
the longer/heavier bullets require faster twist rates for the given bore, than the short stubby lighter bullets.
If your getting a factory rifle your choices are pretty slim.
If your getting a custom tube tell your smith what bullets you plan to shoot and he will get the proper twist.
If you need more try the search function or google.
one twist is no more accurate given that the bullet matches the twist.