1:7 vs 1:9 twist rate

[dmonty]

This was discussed here before,but I cannot remember answer. What rate of twist is best in 16in 223 barrel using 55gr and 62gr bullets?

 

[Rubberduck270]

1:9 is plenty for the light bullets. You'll need a 1:8 or faster for the heavies.

 

[mr.big]

the 9 twist works really well with 55-70 gr bullets,,if you want to shoot 75 and up you need a 7 and with the 80-90 gr Sierra or JLK you may need a 6.5

I would love a 22-250 or 220 Swift with a 7 twist

 

[DaveB]

I would love a 22-250 or 220 Swift with a 7 twist

Yes, practically only reason I would change out my 22-250 would be to get a fast twist. 1 in 7, that would be very nice.