Quote:
Originally Posted by Catman42
1.5 is ment to make a bullet stable to about 250 yards. 1.2 or 1.3 is ment to make a bullet stable as far as you want to shoot. do not have to long a point on your bullet, a round nose is better. if you have a boat tail your rifle must discharge it 3600 to 4000 ft. per second. a flat base bullet is over all more accurate and doesnt need to be pushed fast to shoot. most over the counter barrels on factory made rifles shoot the tightest groups with the shorter lighter bullets. not so all the time but more time than not. i hope i answered your question about the numbers.
|
I've never heard of this reasoning. Especially when 30 caliber 250 grain boattail hollow point bullets shot 2150 fps from a 1:8 twist barrel tested about 6 inches at 1000 yards.
What rifling twist rates are best for boattail bullets leaving over 3600 fps?